dovecot/original-hg/dovecot-1.2: src/lib-index/mail-cache-fields.c annotate

annotate src/lib-index/mail-cache-fields.c @ 6695:76c0e3a4df7a HEAD

If we need to do more than 4 reads to get to the cached fields header, compress the cache file.

author	Timo Sirainen <tss@iki.fi>
date	Mon, 05 Nov 2007 21:37:27 +0200
parents	c7742d109a67
children	b0e8403b4bb1

rev	line source
6429 65c69a53a7be Replaced my Copyright notices. The year range always ends with 2007 now. Timo Sirainen <tss@iki.fi> parents: 6296 diff changeset	1 /* Copyright (c) 2004-2007 Dovecot authors, see the included COPYING file */
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	2
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	3 #include "lib.h"
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	4 #include "buffer.h"
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	5 #include "hash.h"
2866 bf1e718e7370 Cache file works now with mmap_disable=yes. Still needs a few optimizations. Timo Sirainen <tss@iki.fi> parents: 2708 diff changeset	6 #include "file-cache.h"
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	7 #include "write-full.h"
6694 c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	8 #include "mmap-util.h"
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	9 #include "mail-cache-private.h"
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	10
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	11 #include <stddef.h>
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	12
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	13 #define CACHE_HDR_PREFETCH 1024
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	14
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	15 #define CACHE_FIELD_IS_NEWLY_WANTED(cache, field_idx) \
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	16 ((cache)->field_file_map[field_idx] == (uint32_t)-1 && \
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	17 (cache)->fields[field_idx].used)
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	18
4654 35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	19 static bool field_has_fixed_size(enum mail_cache_field_type type)
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	20 {
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	21 switch (type) {
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	22 case MAIL_CACHE_FIELD_FIXED_SIZE:
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	23 case MAIL_CACHE_FIELD_BITMASK:
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	24 return TRUE;
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	25 case MAIL_CACHE_FIELD_VARIABLE_SIZE:
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	26 case MAIL_CACHE_FIELD_STRING:
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	27 case MAIL_CACHE_FIELD_HEADER:
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	28 return FALSE;
4722 b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	29
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	30 case MAIL_CACHE_FIELD_COUNT:
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	31 break;
4654 35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	32 }
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	33
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	34 i_unreached();
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	35 return FALSE;
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	36 }
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	37
4722 b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	38 static bool field_decision_is_valid(enum mail_cache_decision_type type)
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	39 {
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	40 switch (type & ~MAIL_CACHE_DECISION_FORCED) {
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	41 case MAIL_CACHE_DECISION_NO:
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	42 case MAIL_CACHE_DECISION_TEMP:
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	43 case MAIL_CACHE_DECISION_YES:
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	44 return TRUE;
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	45 default:
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	46 return FALSE;
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	47 }
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	48 }
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	49
4654 35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	50 static int field_type_verify(struct mail_cache *cache, unsigned int idx,
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	51 enum mail_cache_field_type type, unsigned int size)
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	52 {
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	53 const struct mail_cache_field *field = &cache->fields[idx].field;
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	54
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	55 if (field->type != type) {
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	56 mail_cache_set_corrupted(cache,
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	57 "registered field %s type changed", field->name);
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	58 return -1;
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	59 }
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	60 if (field->field_size != size && field_has_fixed_size(type)) {
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	61 mail_cache_set_corrupted(cache,
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	62 "registered field %s size changed", field->name);
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	63 return -1;
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	64 }
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	65 return 0;
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	66 }
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	67
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	68 void mail_cache_register_fields(struct mail_cache *cache,
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	69 struct mail_cache_field *fields,
3278 df372eecc5d0 Several size_t -> unsigned int changes. Try to keep "unsigned int" for Timo Sirainen <tss@iki.fi> parents: 2968 diff changeset	70 unsigned int fields_count)
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	71 {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	72 void orig_key, orig_value;
4020 fcfd44f56b04 While casting const pointers to something else, the const was often Timo Sirainen <tss@iki.fi> parents: 3999 diff changeset	73 char *name;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	74 unsigned int new_idx;
3999 f1e29736e60d Don't register cache fields twice. Fixes "duplicate field in header" errors. Timo Sirainen <tss@iki.fi> parents: 3627 diff changeset	75 unsigned int i, j;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	76
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	77 new_idx = cache->fields_count;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	78 for (i = 0; i < fields_count; i++) {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	79 if (hash_lookup_full(cache->field_name_hash, fields[i].name,
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	80 &orig_key, &orig_value)) {
4722 b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	81 i_assert(fields[i].type < MAIL_CACHE_FIELD_COUNT);
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	82
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	83 fields[i].idx =
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	84 POINTER_CAST_TO(orig_value, unsigned int);
4654 35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	85 (void)field_type_verify(cache, fields[i].idx,
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	86 fields[i].type,
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	87 fields[i].field_size);
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	88 continue;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	89 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	90
3999 f1e29736e60d Don't register cache fields twice. Fixes "duplicate field in header" errors. Timo Sirainen <tss@iki.fi> parents: 3627 diff changeset	91 /* check if the same header is being registered in the
f1e29736e60d Don't register cache fields twice. Fixes "duplicate field in header" errors. Timo Sirainen <tss@iki.fi> parents: 3627 diff changeset	92 same field array */
f1e29736e60d Don't register cache fields twice. Fixes "duplicate field in header" errors. Timo Sirainen <tss@iki.fi> parents: 3627 diff changeset	93 for (j = 0; j < i; j++) {
f1e29736e60d Don't register cache fields twice. Fixes "duplicate field in header" errors. Timo Sirainen <tss@iki.fi> parents: 3627 diff changeset	94 if (strcasecmp(fields[i].name, fields[j].name) == 0) {
f1e29736e60d Don't register cache fields twice. Fixes "duplicate field in header" errors. Timo Sirainen <tss@iki.fi> parents: 3627 diff changeset	95 fields[i].idx = fields[j].idx;
f1e29736e60d Don't register cache fields twice. Fixes "duplicate field in header" errors. Timo Sirainen <tss@iki.fi> parents: 3627 diff changeset	96 break;
f1e29736e60d Don't register cache fields twice. Fixes "duplicate field in header" errors. Timo Sirainen <tss@iki.fi> parents: 3627 diff changeset	97 }
f1e29736e60d Don't register cache fields twice. Fixes "duplicate field in header" errors. Timo Sirainen <tss@iki.fi> parents: 3627 diff changeset	98 }
f1e29736e60d Don't register cache fields twice. Fixes "duplicate field in header" errors. Timo Sirainen <tss@iki.fi> parents: 3627 diff changeset	99
f1e29736e60d Don't register cache fields twice. Fixes "duplicate field in header" errors. Timo Sirainen <tss@iki.fi> parents: 3627 diff changeset	100 if (j == i)
f1e29736e60d Don't register cache fields twice. Fixes "duplicate field in header" errors. Timo Sirainen <tss@iki.fi> parents: 3627 diff changeset	101 fields[i].idx = new_idx++;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	102 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	103
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	104 if (new_idx == cache->fields_count)
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	105 return;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	106
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	107 /* @UNSAFE */
2362 f2acbe281ac1 Allocate cache->fields and cache->fields_file_map with malloc rather than Timo Sirainen <tss@iki.fi> parents: 2342 diff changeset	108 cache->fields = i_realloc(cache->fields,
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	109 cache->fields_count * sizeof(*cache->fields),
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	110 new_idx * sizeof(*cache->fields));
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	111 cache->field_file_map =
2362 f2acbe281ac1 Allocate cache->fields and cache->fields_file_map with malloc rather than Timo Sirainen <tss@iki.fi> parents: 2342 diff changeset	112 i_realloc(cache->field_file_map,
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	113 cache->fields_count * sizeof(*cache->field_file_map),
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	114 new_idx * sizeof(*cache->field_file_map));
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	115
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	116 for (i = 0; i < fields_count; i++) {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	117 unsigned int idx = fields[i].idx;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	118
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	119 if (idx < cache->fields_count)
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	120 continue;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	121
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	122 /* new index - save it */
4020 fcfd44f56b04 While casting const pointers to something else, the const was often Timo Sirainen <tss@iki.fi> parents: 3999 diff changeset	123 name = p_strdup(cache->field_pool, fields[i].name);
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	124 cache->fields[idx].field = fields[i];
4020 fcfd44f56b04 While casting const pointers to something else, the const was often Timo Sirainen <tss@iki.fi> parents: 3999 diff changeset	125 cache->fields[idx].field.name = name;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	126 cache->field_file_map[idx] = (uint32_t)-1;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	127
4654 35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	128 if (!field_has_fixed_size(cache->fields[idx].field.type))
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	129 cache->fields[idx].field.field_size = (unsigned int)-1;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	130
4020 fcfd44f56b04 While casting const pointers to something else, the const was often Timo Sirainen <tss@iki.fi> parents: 3999 diff changeset	131 hash_insert(cache->field_name_hash, name, POINTER_CAST(idx));
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	132 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	133 cache->fields_count = new_idx;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	134 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	135
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	136 unsigned int
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	137 mail_cache_register_lookup(struct mail_cache cache, const char name)
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	138 {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	139 void orig_key, orig_value;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	140
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	141 if (hash_lookup_full(cache->field_name_hash, name,
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	142 &orig_key, &orig_value))
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	143 return POINTER_CAST_TO(orig_value, unsigned int);
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	144 else
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	145 return (unsigned int)-1;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	146 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	147
3461 b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	148 const struct mail_cache_field *
b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	149 mail_cache_register_get_list(struct mail_cache *cache, pool_t pool,
b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	150 unsigned int *count_r)
b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	151 {
b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	152 struct mail_cache_field *list;
b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	153 unsigned int i;
b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	154
6003 6f66ce9491ad When getting cache fields list, make sure cache file is opened. Timo Sirainen <tss@iki.fi> parents: 5952 diff changeset	155 if (!cache->opened)
6f66ce9491ad When getting cache fields list, make sure cache file is opened. Timo Sirainen <tss@iki.fi> parents: 5952 diff changeset	156 (void)mail_cache_open_and_verify(cache);
6f66ce9491ad When getting cache fields list, make sure cache file is opened. Timo Sirainen <tss@iki.fi> parents: 5952 diff changeset	157
3461 b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	158 list = p_new(pool, struct mail_cache_field, cache->fields_count);
3494 7cab5dc6a0cd mail_cache_register_get_list(): Allocate the returned strings also from Timo Sirainen <tss@iki.fi> parents: 3461 diff changeset	159 for (i = 0; i < cache->fields_count; i++) {
3461 b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	160 list[i] = cache->fields[i].field;
3494 7cab5dc6a0cd mail_cache_register_get_list(): Allocate the returned strings also from Timo Sirainen <tss@iki.fi> parents: 3461 diff changeset	161 list[i].name = p_strdup(pool, list[i].name);
7cab5dc6a0cd mail_cache_register_get_list(): Allocate the returned strings also from Timo Sirainen <tss@iki.fi> parents: 3461 diff changeset	162 }
3461 b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	163
b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	164 *count_r = cache->fields_count;
b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	165 return list;
b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	166 }
b7ce2532250a Added mail_cache_register_get_list() to get a list of all registered fields Timo Sirainen <tss@iki.fi> parents: 3375 diff changeset	167
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	168 static int mail_cache_header_fields_get_offset(struct mail_cache *cache,
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	169 uint32_t *offset_r)
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	170 {
6694 c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	171 const size_t page_size = mmap_get_page_size();
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	172 const struct mail_cache_header_fields *field_hdr;
6694 c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	173 const unsigned int size = sizeof(*field_hdr) + CACHE_HDR_PREFETCH;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	174 uint32_t offset, next_offset;
6694 c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	175 uoff_t invalid_start = 0, invalid_end = 0;
6695 76c0e3a4df7a If we need to do more than 4 reads to get to the cached fields header, Timo Sirainen <tss@iki.fi> parents: 6694 diff changeset	176 unsigned int next_count = 0;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	177
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	178 if (MAIL_CACHE_IS_UNUSABLE(cache)) {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	179 *offset_r = 0;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	180 return 0;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	181 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	182
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	183 /* find the latest header */
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	184 offset = 0;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	185 next_offset =
2407 fed6d07bd8ee Transaction log file is now read-lockless. Timo Sirainen <tss@iki.fi> parents: 2362 diff changeset	186 mail_index_offset_to_uint32(cache->hdr->field_header_offset);
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	187 while (next_offset != 0) {
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	188 if (next_offset == offset) {
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	189 mail_cache_set_corrupted(cache,
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	190 "next_offset in field header loops");
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	191 return -1;
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	192 }
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	193 offset = next_offset;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	194
6694 c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	195 if (offset < invalid_start && cache->file_cache != NULL) {
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	196 uoff_t new_start = offset;
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	197
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	198 new_start &= ~(page_size-1);
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	199 file_cache_invalidate(cache->file_cache,
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	200 new_start, invalid_start);
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	201 invalid_start = new_start;
2867 d416b6d0a7ee More correct file cache invalidating. Timo Sirainen <tss@iki.fi> parents: 2866 diff changeset	202 }
6694 c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	203 if (offset + size > invalid_end && cache->file_cache != NULL) {
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	204 uoff_t new_size = invalid_end - invalid_start + size;
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	205
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	206 new_size = (new_size + page_size-1) & ~(page_size - 1);
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	207 file_cache_invalidate(cache->file_cache,
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	208 invalid_end, new_size);
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	209 invalid_end = offset + new_size;
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	210 }
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	211
c7742d109a67 mmap_disable=yes: When following cache field headers, don't invalidate the Timo Sirainen <tss@iki.fi> parents: 6443 diff changeset	212 if (mail_cache_map(cache, offset, size) < 0)
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	213 return -1;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	214
2866 bf1e718e7370 Cache file works now with mmap_disable=yes. Still needs a few optimizations. Timo Sirainen <tss@iki.fi> parents: 2708 diff changeset	215 field_hdr = CONST_PTR_OFFSET(cache->data, offset);
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	216 next_offset =
2407 fed6d07bd8ee Transaction log file is now read-lockless. Timo Sirainen <tss@iki.fi> parents: 2362 diff changeset	217 mail_index_offset_to_uint32(field_hdr->next_offset);
6695 76c0e3a4df7a If we need to do more than 4 reads to get to the cached fields header, Timo Sirainen <tss@iki.fi> parents: 6694 diff changeset	218 next_count++;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	219 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	220
6695 76c0e3a4df7a If we need to do more than 4 reads to get to the cached fields header, Timo Sirainen <tss@iki.fi> parents: 6694 diff changeset	221 if (next_count > MAIL_CACHE_HEADER_FIELD_CONTINUE_COUNT)
76c0e3a4df7a If we need to do more than 4 reads to get to the cached fields header, Timo Sirainen <tss@iki.fi> parents: 6694 diff changeset	222 cache->need_compress_file_seq = cache->hdr->file_seq;
76c0e3a4df7a If we need to do more than 4 reads to get to the cached fields header, Timo Sirainen <tss@iki.fi> parents: 6694 diff changeset	223
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	224 *offset_r = offset;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	225 return 0;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	226 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	227
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	228 int mail_cache_header_fields_read(struct mail_cache *cache)
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	229 {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	230 const struct mail_cache_header_fields *field_hdr = NULL;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	231 struct mail_cache_field field;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	232 const uint32_t last_used, sizes;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	233 const uint8_t types, decisions;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	234 const char p, names, *end;
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	235 void orig_key, orig_value;
5952 ba118a9eeb50 Some paranoia fixes for memory allocation. Don't access a mmaped variable Timo Sirainen <tss@iki.fi> parents: 5947 diff changeset	236 unsigned int new_fields_count;
6296 205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	237 time_t max_drop_time;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	238 uint32_t offset, i;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	239
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	240 if (mail_cache_header_fields_get_offset(cache, &offset) < 0)
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	241 return -1;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	242
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	243 if (offset == 0) {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	244 /* no fields - the file is empty */
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	245 return 0;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	246 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	247
2866 bf1e718e7370 Cache file works now with mmap_disable=yes. Still needs a few optimizations. Timo Sirainen <tss@iki.fi> parents: 2708 diff changeset	248 field_hdr = CONST_PTR_OFFSET(cache->data, offset);
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	249 if (offset + field_hdr->size > cache->mmap_length) {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	250 mail_cache_set_corrupted(cache,
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	251 "field header points outside file");
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	252 return -1;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	253 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	254
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	255 /* check the fixed size of the header. name[] has to be checked
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	256 separately */
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	257 if (field_hdr->size < sizeof(*field_hdr) +
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	258 field_hdr->fields_count * (sizeof(uint32_t)*2 + 1 + 2)) {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	259 mail_cache_set_corrupted(cache, "invalid field header size");
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	260 return -1;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	261 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	262
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	263 if (field_hdr->size > sizeof(*field_hdr) + CACHE_HDR_PREFETCH) {
2867 d416b6d0a7ee More correct file cache invalidating. Timo Sirainen <tss@iki.fi> parents: 2866 diff changeset	264 if (cache->file_cache != NULL) {
d416b6d0a7ee More correct file cache invalidating. Timo Sirainen <tss@iki.fi> parents: 2866 diff changeset	265 /* we can't trust that the cached data is valid */
d416b6d0a7ee More correct file cache invalidating. Timo Sirainen <tss@iki.fi> parents: 2866 diff changeset	266 file_cache_invalidate(cache->file_cache, offset,
d416b6d0a7ee More correct file cache invalidating. Timo Sirainen <tss@iki.fi> parents: 2866 diff changeset	267 sizeof(*field_hdr) +
d416b6d0a7ee More correct file cache invalidating. Timo Sirainen <tss@iki.fi> parents: 2866 diff changeset	268 CACHE_HDR_PREFETCH);
d416b6d0a7ee More correct file cache invalidating. Timo Sirainen <tss@iki.fi> parents: 2866 diff changeset	269 }
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	270 if (mail_cache_map(cache, offset, field_hdr->size) < 0)
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	271 return -1;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	272 }
2866 bf1e718e7370 Cache file works now with mmap_disable=yes. Still needs a few optimizations. Timo Sirainen <tss@iki.fi> parents: 2708 diff changeset	273 field_hdr = CONST_PTR_OFFSET(cache->data, offset);
5952 ba118a9eeb50 Some paranoia fixes for memory allocation. Don't access a mmaped variable Timo Sirainen <tss@iki.fi> parents: 5947 diff changeset	274 new_fields_count = field_hdr->fields_count;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	275
5952 ba118a9eeb50 Some paranoia fixes for memory allocation. Don't access a mmaped variable Timo Sirainen <tss@iki.fi> parents: 5947 diff changeset	276 if (new_fields_count != 0) {
4110 9662de8fc649 Don't crash with "can't allocate 0 bytes of memory" if there are zero Timo Sirainen <tss@iki.fi> parents: 4020 diff changeset	277 cache->file_field_map =
9662de8fc649 Don't crash with "can't allocate 0 bytes of memory" if there are zero Timo Sirainen <tss@iki.fi> parents: 4020 diff changeset	278 i_realloc(cache->file_field_map,
9662de8fc649 Don't crash with "can't allocate 0 bytes of memory" if there are zero Timo Sirainen <tss@iki.fi> parents: 4020 diff changeset	279 cache->file_fields_count *
9662de8fc649 Don't crash with "can't allocate 0 bytes of memory" if there are zero Timo Sirainen <tss@iki.fi> parents: 4020 diff changeset	280 sizeof(unsigned int),
5952 ba118a9eeb50 Some paranoia fixes for memory allocation. Don't access a mmaped variable Timo Sirainen <tss@iki.fi> parents: 5947 diff changeset	281 new_fields_count * sizeof(unsigned int));
4110 9662de8fc649 Don't crash with "can't allocate 0 bytes of memory" if there are zero Timo Sirainen <tss@iki.fi> parents: 4020 diff changeset	282 } else {
9662de8fc649 Don't crash with "can't allocate 0 bytes of memory" if there are zero Timo Sirainen <tss@iki.fi> parents: 4020 diff changeset	283 i_free_and_null(cache->file_field_map);
9662de8fc649 Don't crash with "can't allocate 0 bytes of memory" if there are zero Timo Sirainen <tss@iki.fi> parents: 4020 diff changeset	284 }
5952 ba118a9eeb50 Some paranoia fixes for memory allocation. Don't access a mmaped variable Timo Sirainen <tss@iki.fi> parents: 5947 diff changeset	285 cache->file_fields_count = new_fields_count;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	286
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	287 last_used = CONST_PTR_OFFSET(field_hdr, MAIL_CACHE_FIELD_LAST_USED());
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	288 sizes = CONST_PTR_OFFSET(field_hdr,
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	289 MAIL_CACHE_FIELD_SIZE(field_hdr->fields_count));
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	290 types = CONST_PTR_OFFSET(field_hdr,
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	291 MAIL_CACHE_FIELD_TYPE(field_hdr->fields_count));
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	292 decisions = CONST_PTR_OFFSET(field_hdr,
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	293 MAIL_CACHE_FIELD_DECISION(field_hdr->fields_count));
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	294 names = CONST_PTR_OFFSET(field_hdr,
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	295 MAIL_CACHE_FIELD_NAMES(field_hdr->fields_count));
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	296 end = CONST_PTR_OFFSET(field_hdr, field_hdr->size);
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	297
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	298 /* clear the old mapping */
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	299 for (i = 0; i < cache->fields_count; i++)
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	300 cache->field_file_map[i] = (uint32_t)-1;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	301
6296 205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	302 max_drop_time = cache->index->map->hdr.day_stamp -
205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	303 MAIL_CACHE_FIELD_DROP_SECS;
205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	304
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	305 memset(&field, 0, sizeof(field));
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	306 for (i = 0; i < field_hdr->fields_count; i++) {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	307 for (p = names; p != end && *p != '\0'; p++) ;
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	308 if (p == end \|\| *names == '\0') {
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	309 mail_cache_set_corrupted(cache,
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	310 "field header names corrupted");
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	311 return -1;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	312 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	313
4722 b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	314 if (types[i] > MAIL_CACHE_FIELD_COUNT) {
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	315 mail_cache_set_corrupted(cache, "field type corrupted");
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	316 return -1;
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	317 }
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	318 if (!field_decision_is_valid(decisions[i])) {
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	319 mail_cache_set_corrupted(cache,
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	320 "field decision type corrupted");
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	321 return -1;
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	322 }
b0cf3e4d6c96 If cache file contains broken field type or decision type mark the cache Timo Sirainen <tss@iki.fi> parents: 4654 diff changeset	323
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	324 if (hash_lookup_full(cache->field_name_hash, names,
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	325 &orig_key, &orig_value)) {
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	326 /* already exists, see if decision can be updated */
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	327 field.idx = POINTER_CAST_TO(orig_value, unsigned int);
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	328 if (!cache->fields[field.idx].decision_dirty) {
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	329 cache->fields[field.idx].field.decision =
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	330 decisions[i];
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	331 }
4654 35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	332 if (field_type_verify(cache, field.idx,
35d9433de1ca When registering fields, if they were already exited in the cache file mark Timo Sirainen <tss@iki.fi> parents: 4345 diff changeset	333 types[i], sizes[i]) < 0)
4345 f5d9c2b4d118 If cache field's size is wrong, rebuild the cache file instead of crashing Timo Sirainen <tss@iki.fi> parents: 4110 diff changeset	334 return -1;
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	335 } else {
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	336 field.name = names;
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	337 field.type = types[i];
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	338 field.field_size = sizes[i];
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	339 field.decision = decisions[i];
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	340 mail_cache_register_fields(cache, &field, 1);
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	341 }
2968 2ab037df6cf3 Check for duplicate fields in header. Timo Sirainen <tss@iki.fi> parents: 2929 diff changeset	342 if (cache->field_file_map[field.idx] != (uint32_t)-1) {
2ab037df6cf3 Check for duplicate fields in header. Timo Sirainen <tss@iki.fi> parents: 2929 diff changeset	343 mail_cache_set_corrupted(cache,
2ab037df6cf3 Check for duplicate fields in header. Timo Sirainen <tss@iki.fi> parents: 2929 diff changeset	344 "Duplicated field in header: %s", names);
2ab037df6cf3 Check for duplicate fields in header. Timo Sirainen <tss@iki.fi> parents: 2929 diff changeset	345 return -1;
2ab037df6cf3 Check for duplicate fields in header. Timo Sirainen <tss@iki.fi> parents: 2929 diff changeset	346 }
6296 205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	347 cache->fields[field.idx].used = TRUE;
205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	348
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	349 cache->field_file_map[field.idx] = i;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	350 cache->file_field_map[i] = field.idx;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	351
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	352 /* update last_used if it's newer than ours */
2342 fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	353 if (last_used[i] > cache->fields[field.idx].last_used)
fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	354 cache->fields[field.idx].last_used = last_used[i];
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	355
6296 205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	356 if (cache->fields[field.idx].last_used < max_drop_time) {
205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	357 /* time to drop this field */
205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	358 cache->need_compress_file_seq = cache->hdr->file_seq;
205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	359 }
205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	360
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	361 names = p + 1;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	362 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	363 return 0;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	364 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	365
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	366 static void copy_to_buf(struct mail_cache cache, buffer_t dest, bool add_new,
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	367 size_t offset, size_t size)
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	368 {
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	369 const void *data;
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	370 unsigned int i, field;
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	371
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	372 /* copy the existing fields */
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	373 for (i = 0; i < cache->file_fields_count; i++) {
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	374 field = cache->file_field_map[i];
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	375 data = CONST_PTR_OFFSET(&cache->fields[field], offset);
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	376 buffer_append(dest, data, size);
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	377 }
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	378 if (!add_new)
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	379 return;
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	380
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	381 /* copy newly wanted fields */
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	382 for (i = 0; i < cache->fields_count; i++) {
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	383 if (CACHE_FIELD_IS_NEWLY_WANTED(cache, i)) {
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	384 data = CONST_PTR_OFFSET(&cache->fields[i], offset);
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	385 buffer_append(dest, data, size);
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	386 }
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	387 }
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	388 }
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	389
2342 fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	390 static void copy_to_buf_byte(struct mail_cache cache, buffer_t dest,
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	391 bool add_new, size_t offset)
2342 fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	392 {
fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	393 const int *data;
fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	394 unsigned int i, field;
fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	395 uint8_t byte;
fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	396
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	397 /* copy the existing fields */
2342 fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	398 for (i = 0; i < cache->file_fields_count; i++) {
fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	399 field = cache->file_field_map[i];
fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	400 data = CONST_PTR_OFFSET(&cache->fields[field], offset);
fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	401 byte = (uint8_t)*data;
fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	402 buffer_append(dest, &byte, 1);
fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	403 }
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	404 if (!add_new)
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	405 return;
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	406
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	407 /* copy newly wanted fields */
2342 fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	408 for (i = 0; i < cache->fields_count; i++) {
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	409 if (CACHE_FIELD_IS_NEWLY_WANTED(cache, i)) {
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	410 data = CONST_PTR_OFFSET(&cache->fields[i], offset);
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	411 byte = (uint8_t)*data;
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	412 buffer_append(dest, &byte, 1);
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	413 }
2342 fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	414 }
fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	415 }
fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	416
2929 ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	417 static int mail_cache_header_fields_update_locked(struct mail_cache *cache)
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	418 {
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	419 buffer_t *buffer;
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	420 uint32_t i, offset, dec_offset;
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	421 int ret = 0;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	422
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	423 if (mail_cache_header_fields_read(cache) < 0 \|\|
2929 ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	424 mail_cache_header_fields_get_offset(cache, &offset) < 0)
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	425 return -1;
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	426
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	427 t_push();
2708 f1e9f3ec8135 Buffer API change: we no longer support limited sized buffers where Timo Sirainen <tss@iki.fi> parents: 2604 diff changeset	428 buffer = buffer_create_dynamic(pool_datastack_create(), 256);
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	429
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	430 copy_to_buf(cache, buffer, FALSE,
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	431 offsetof(struct mail_cache_field_private, last_used),
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	432 sizeof(uint32_t));
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	433 ret = mail_cache_write(cache, buffer->data, buffer->used,
3375 9e2abc4c341c Whenever writing to cache file, also updated file_cache. Fixes problems with Timo Sirainen <tss@iki.fi> parents: 3278 diff changeset	434 offset + MAIL_CACHE_FIELD_LAST_USED());
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	435 if (ret == 0) {
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	436 buffer_set_used_size(buffer, 0);
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	437 copy_to_buf_byte(cache, buffer, FALSE,
2342 fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	438 offsetof(struct mail_cache_field, decision));
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	439
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	440 dec_offset = offset +
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	441 MAIL_CACHE_FIELD_DECISION(cache->file_fields_count);
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	442 ret = mail_cache_write(cache, buffer->data, buffer->used,
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	443 dec_offset);
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	444 if (ret == 0) {
2592 5edda9783458 minor fix Timo Sirainen <tss@iki.fi> parents: 2407 diff changeset	445 for (i = 0; i < cache->file_fields_count; i++)
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	446 cache->fields[i].decision_dirty = FALSE;
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	447 }
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	448 }
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	449 t_pop();
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	450
2867 d416b6d0a7ee More correct file cache invalidating. Timo Sirainen <tss@iki.fi> parents: 2866 diff changeset	451 if (ret == 0)
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	452 cache->field_header_write_pending = FALSE;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	453
2929 ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	454 return ret;
ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	455 }
ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	456
ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	457 int mail_cache_header_fields_update(struct mail_cache *cache)
ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	458 {
ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	459 int ret;
ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	460
ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	461 if (cache->locked)
ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	462 return mail_cache_header_fields_update_locked(cache);
ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	463
5947 7ebe0593f488 Don't create cache file until something is actually being added to it. Timo Sirainen <tss@iki.fi> parents: 4722 diff changeset	464 if (mail_cache_lock(cache, NULL) <= 0)
2929 ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	465 return -1;
ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	466
ba9062032877 Locking fixes and cleanups Timo Sirainen <tss@iki.fi> parents: 2867 diff changeset	467 ret = mail_cache_header_fields_update_locked(cache);
3627 c0e35566dd14 Unlocking cache file can also corrupt it since it modifies it. Added a Timo Sirainen <tss@iki.fi> parents: 3617 diff changeset	468 if (mail_cache_unlock(cache) < 0)
c0e35566dd14 Unlocking cache file can also corrupt it since it modifies it. Added a Timo Sirainen <tss@iki.fi> parents: 3617 diff changeset	469 ret = -1;
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	470 return ret;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	471 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	472
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	473 void mail_cache_header_fields_get(struct mail_cache cache, buffer_t dest)
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	474 {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	475 struct mail_cache_header_fields hdr;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	476 unsigned int field;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	477 const char *name;
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	478 uint32_t i;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	479
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	480 memset(&hdr, 0, sizeof(hdr));
6296 205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	481 hdr.fields_count = cache->file_fields_count;
205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	482 for (i = 0; i < cache->fields_count; i++) {
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	483 if (CACHE_FIELD_IS_NEWLY_WANTED(cache, i))
6296 205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	484 hdr.fields_count++;
205ee38f10d1 Drop fields that haven't been used for 30 days when compressing. Timo Sirainen <tss@iki.fi> parents: 6003 diff changeset	485 }
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	486 buffer_append(dest, &hdr, sizeof(hdr));
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	487
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	488 /* we have to keep the field order for the existing fields. */
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	489 copy_to_buf(cache, dest, TRUE,
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	490 offsetof(struct mail_cache_field_private, last_used),
406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	491 sizeof(uint32_t));
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	492 copy_to_buf(cache, dest, TRUE,
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	493 offsetof(struct mail_cache_field, field_size),
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	494 sizeof(uint32_t));
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	495 copy_to_buf_byte(cache, dest, TRUE,
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	496 offsetof(struct mail_cache_field, type));
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	497 copy_to_buf_byte(cache, dest, TRUE,
2342 fa529dd77176 Fixes for big endian systems. Timo Sirainen <tss@iki.fi> parents: 2339 diff changeset	498 offsetof(struct mail_cache_field, decision));
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	499
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	500 i_assert(dest->used == sizeof(hdr) +
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	501 (sizeof(uint32_t)2 + 2) hdr.fields_count);
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	502
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	503 /* add existing fields' names */
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	504 for (i = 0; i < cache->file_fields_count; i++) {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	505 field = cache->file_field_map[i];
2339 406692edc12d Cache fixes. Decisions are saved again. Timo Sirainen <tss@iki.fi> parents: 2327 diff changeset	506 name = cache->fields[field].field.name;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	507 buffer_append(dest, name, strlen(name)+1);
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	508 }
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	509 /* add newly wanted fields' names */
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	510 for (i = 0; i < cache->fields_count; i++) {
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	511 if (CACHE_FIELD_IS_NEWLY_WANTED(cache, i)) {
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	512 name = cache->fields[i].field.name;
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	513 buffer_append(dest, name, strlen(name)+1);
53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	514 }
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	515 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	516
6443 53313d1e7e4f Code cleanups and some minor fixes. Timo Sirainen <tss@iki.fi> parents: 6429 diff changeset	517 hdr.size = dest->used;
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	518 buffer_write(dest, 0, &hdr, sizeof(hdr));
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	519
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	520 if ((hdr.size & 3) != 0)
3617 904849549eac Removed null4 and replaced the few uses of it with buffer_append_zero(). Timo Sirainen <tss@iki.fi> parents: 3494 diff changeset	521 buffer_append_zero(dest, 4 - (hdr.size & 3));
2327 7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	522 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	523
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	524 int mail_cache_header_fields_get_next_offset(struct mail_cache *cache,
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	525 uint32_t *offset_r)
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	526 {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	527 if (mail_cache_header_fields_get_offset(cache, offset_r) < 0)
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	528 return -1;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	529
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	530 if (*offset_r == 0) {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	531 *offset_r = offsetof(struct mail_cache_header,
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	532 field_header_offset);
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	533 } else {
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	534 *offset_r += offsetof(struct mail_cache_header_fields,
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	535 next_offset);
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	536 }
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	537 return 0;
7d02e2a7672d Header caching redesigned. New design allows caching decisions per field, so Timo Sirainen <tss@iki.fi> parents: diff changeset	538 }

Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/lib-index/mail-cache-fields.c @ 6695:76c0e3a4df7a HEAD