Mercurial > dovecot > original-hg > dovecot-1.2
annotate src/lib-index/mail-modifylog.c @ 259:cdf38b5cc2b7 HEAD
still wrong..
| author | Timo Sirainen <tss@iki.fi> |
|---|---|
| date | Mon, 16 Sep 2002 12:52:58 +0300 |
| parents | 0a45c4744f51 |
| children | 51eea5cbb075 |
| rev | line source |
|---|---|
| 0 | 1 /* Copyright (C) 2002 Timo Sirainen */ |
| 2 | |
| 3 #include "lib.h" | |
|
222
cf4d065f2f85
lots of cleanups. also index/datafile is now capable of staying in memory,
Timo Sirainen <tss@iki.fi>
parents:
221
diff
changeset
|
4 #include "file-lock.h" |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
5 #include "file-set-size.h" |
| 0 | 6 #include "mmap-util.h" |
|
29
e9375147c0cb
Added write_full() which is a simple wrapper around write() meant for
Timo Sirainen <tss@iki.fi>
parents:
5
diff
changeset
|
7 #include "write-full.h" |
| 0 | 8 #include "mail-index.h" |
| 9 #include "mail-index-util.h" | |
| 10 #include "mail-modifylog.h" | |
| 11 | |
| 12 #include <stdlib.h> | |
| 13 #include <fcntl.h> | |
| 14 | |
| 15 /* Maximum size for modify log (isn't exact) */ | |
| 16 #define MAX_MODIFYLOG_SIZE 10240 | |
| 17 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
18 #define MODIFYLOG_GROW_SIZE (sizeof(ModifyLogRecord) * 128) |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
19 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
20 #define MODIFY_LOG_INITIAL_SIZE (sizeof(ModifyLogHeader) + MODIFYLOG_GROW_SIZE) |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
21 |
| 0 | 22 #define MODIFYLOG_FILE_POSITION(log, ptr) \ |
| 23 ((int) ((char *) (ptr) - (char *) (log)->mmap_base)) | |
| 24 | |
| 25 struct _MailModifyLog { | |
| 26 MailIndex *index; | |
| 27 | |
| 28 int fd; | |
| 29 char *filepath; | |
| 30 | |
| 31 void *mmap_base; | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
32 size_t mmap_used_length; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
33 size_t mmap_full_length; |
| 0 | 34 |
| 35 ModifyLogHeader *header; | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
36 uoff_t synced_position; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
37 unsigned int synced_id; |
| 0 | 38 |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
39 unsigned int anon_mmap:1; |
| 0 | 40 unsigned int modified:1; |
| 41 unsigned int second_log:1; | |
| 42 }; | |
| 43 | |
|
222
cf4d065f2f85
lots of cleanups. also index/datafile is now capable of staying in memory,
Timo Sirainen <tss@iki.fi>
parents:
221
diff
changeset
|
44 static const unsigned int no_expunges[] = { 0 }; |
|
cf4d065f2f85
lots of cleanups. also index/datafile is now capable of staying in memory,
Timo Sirainen <tss@iki.fi>
parents:
221
diff
changeset
|
45 |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
46 static int modifylog_set_syscall_error(MailModifyLog *log, |
|
231
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
47 const char *function) |
|
221
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
48 { |
|
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
49 i_assert(function != NULL); |
|
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
50 |
|
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
51 index_set_error(log->index, "%s failed with modify log file %s: %m", |
|
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
52 function, log->filepath); |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
53 return FALSE; |
|
221
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
54 } |
|
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
55 |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
56 static int modifylog_set_corrupted(MailModifyLog *log, const char *fmt, ...) |
|
221
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
57 { |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
58 va_list va; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
59 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
60 va_start(va, fmt); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
61 t_push(); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
62 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
63 index_set_error(log->index, "Corrupted modify log file %s: %s", |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
64 log->filepath, t_strdup_vprintf(fmt, va)); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
65 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
66 t_pop(); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
67 va_end(va); |
|
221
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
68 |
|
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
69 /* make sure we don't get back here */ |
|
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
70 log->index->inconsistent = TRUE; |
|
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
71 (void)unlink(log->filepath); |
|
ed0d5b17c7a4
Added extra functions for easier printing of error messages. Moved
Timo Sirainen <tss@iki.fi>
parents:
199
diff
changeset
|
72 |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
73 return FALSE; |
| 0 | 74 } |
| 75 | |
| 76 /* returns 1 = yes, 0 = no, -1 = error */ | |
| 77 static int mail_modifylog_have_other_users(MailModifyLog *log) | |
| 78 { | |
| 79 int ret; | |
| 80 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
81 if (log->anon_mmap) |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
82 return 0; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
83 |
| 0 | 84 /* try grabbing exclusive lock */ |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
85 ret = file_try_lock(log->fd, F_WRLCK); |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
86 if (ret <= 0) { |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
87 if (ret < 0) |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
88 modifylog_set_syscall_error(log, "file_try_lock()"); |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
89 return ret < 0 ? -1 : 1; |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
90 } |
| 0 | 91 |
| 92 /* revert back to shared lock */ | |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
93 ret = file_try_lock(log->fd, F_RDLCK); |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
94 if (ret < 0) { |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
95 modifylog_set_syscall_error(log, "file_try_lock()"); |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
96 return -1; |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
97 } |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
98 |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
99 if (ret == 0) { |
| 0 | 100 /* shouldn't happen */ |
|
222
cf4d065f2f85
lots of cleanups. also index/datafile is now capable of staying in memory,
Timo Sirainen <tss@iki.fi>
parents:
221
diff
changeset
|
101 index_set_error(log->index, "file_lock(F_WRLCK -> F_RDLCK) " |
| 0 | 102 "failed with file %s", log->filepath); |
| 103 return -1; | |
| 104 } | |
| 105 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
106 return 0; |
| 0 | 107 } |
| 108 | |
| 240 | 109 static int mmap_update(MailModifyLog *log, int forced) |
| 0 | 110 { |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
111 ModifyLogHeader *hdr; |
| 0 | 112 unsigned int extra; |
| 113 | |
| 240 | 114 if (!forced && log->header != NULL && |
|
237
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
115 log->mmap_full_length >= log->header->used_file_size) |
| 0 | 116 return TRUE; |
| 117 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
118 i_assert(!log->anon_mmap); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
119 |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
120 if (log->mmap_base != NULL) { |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
121 /* make sure we're synced before munmap() */ |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
122 if (log->modified && |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
123 msync(log->mmap_base, log->mmap_used_length, MS_SYNC) < 0) |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
124 return modifylog_set_syscall_error(log, "msync()"); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
125 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
126 if (munmap(log->mmap_base, log->mmap_full_length) < 0) |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
127 modifylog_set_syscall_error(log, "munmap()"); |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
128 } |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
129 |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
130 log->mmap_used_length = 0; |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
131 log->header = NULL; |
| 0 | 132 |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
133 log->mmap_base = mmap_rw_file(log->fd, &log->mmap_full_length); |
| 0 | 134 if (log->mmap_base == MAP_FAILED) { |
| 135 log->mmap_base = NULL; | |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
136 return modifylog_set_syscall_error(log, "mmap()"); |
| 0 | 137 } |
| 138 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
139 if (log->mmap_full_length < sizeof(ModifyLogHeader)) { |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
140 index_set_error(log->index, "Too small modify log %s", |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
141 log->filepath); |
| 0 | 142 (void)unlink(log->filepath); |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
143 return FALSE; |
| 0 | 144 } |
| 145 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
146 extra = (log->mmap_full_length - sizeof(ModifyLogHeader)) % |
| 0 | 147 sizeof(ModifyLogRecord); |
| 148 | |
| 149 if (extra != 0) { | |
| 150 /* partial write or corrupted - | |
| 151 truncate the file to valid length */ | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
152 log->mmap_full_length -= extra; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
153 if (ftruncate(log->fd, (off_t)log->mmap_full_length) < 0) |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
154 modifylog_set_syscall_error(log, "ftruncate()"); |
| 0 | 155 } |
| 156 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
157 hdr = log->mmap_base; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
158 if (hdr->used_file_size > log->mmap_full_length) { |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
159 modifylog_set_corrupted(log, |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
160 "used_file_size larger than real file size " |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
161 "(%"PRIuUOFF_T" vs %"PRIuSIZE_T")", |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
162 hdr->used_file_size, log->mmap_full_length); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
163 return FALSE; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
164 } |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
165 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
166 if ((hdr->used_file_size - sizeof(ModifyLogHeader)) % |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
167 sizeof(ModifyLogRecord) != 0) { |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
168 modifylog_set_corrupted(log, |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
169 "Invalid used_file_size in header (%"PRIuUOFF_T")", |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
170 hdr->used_file_size); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
171 return FALSE; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
172 } |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
173 |
| 0 | 174 log->header = log->mmap_base; |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
175 log->mmap_used_length = log->header->used_file_size; |
| 0 | 176 return TRUE; |
| 177 } | |
| 178 | |
| 179 static MailModifyLog *mail_modifylog_new(MailIndex *index) | |
| 180 { | |
| 181 MailModifyLog *log; | |
| 182 | |
| 183 log = i_new(MailModifyLog, 1); | |
| 184 log->fd = -1; | |
| 185 log->index = index; | |
| 186 | |
| 187 index->modifylog = log; | |
| 188 return log; | |
| 189 } | |
| 190 | |
| 191 static void mail_modifylog_close(MailModifyLog *log) | |
| 192 { | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
193 if (log->anon_mmap) { |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
194 if (munmap_anon(log->mmap_base, log->mmap_full_length) < 0) |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
195 modifylog_set_syscall_error(log, "munmap_anon()"); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
196 } else if (log->mmap_base != NULL) { |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
197 if (munmap(log->mmap_base, log->mmap_full_length) < 0) |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
198 modifylog_set_syscall_error(log, "munmap()"); |
| 0 | 199 } |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
200 log->mmap_base = NULL; |
| 0 | 201 |
| 202 if (log->fd != -1) { | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
203 if (close(log->fd) < 0) |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
204 modifylog_set_syscall_error(log, "close()"); |
| 0 | 205 log->fd = -1; |
| 206 } | |
| 207 | |
| 208 i_free(log->filepath); | |
| 209 } | |
| 210 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
211 static void mail_modifylog_init_header(MailModifyLog *log, ModifyLogHeader *hdr) |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
212 { |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
213 memset(hdr, 0, sizeof(ModifyLogHeader)); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
214 hdr->indexid = log->index->indexid; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
215 hdr->used_file_size = sizeof(ModifyLogHeader); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
216 } |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
217 |
| 0 | 218 static int mail_modifylog_init_fd(MailModifyLog *log, int fd, |
| 219 const char *path) | |
| 220 { | |
| 221 ModifyLogHeader hdr; | |
| 222 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
223 mail_modifylog_init_header(log, &hdr); |
|
29
e9375147c0cb
Added write_full() which is a simple wrapper around write() meant for
Timo Sirainen <tss@iki.fi>
parents:
5
diff
changeset
|
224 if (write_full(fd, &hdr, sizeof(hdr)) < 0) { |
|
237
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
225 if (errno == ENOSPC) |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
226 log->index->nodiskspace = TRUE; |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
227 |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
228 index_file_set_syscall_error(log->index, path, "write_full()"); |
| 0 | 229 return FALSE; |
| 230 } | |
| 231 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
232 if (file_set_size(fd, MODIFY_LOG_INITIAL_SIZE) < 0) { |
|
237
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
233 if (errno == ENOSPC) |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
234 log->index->nodiskspace = TRUE; |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
235 |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
236 index_file_set_syscall_error(log->index, path, |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
237 "file_set_size()"); |
| 0 | 238 return FALSE; |
| 239 } | |
| 240 | |
| 241 return TRUE; | |
| 242 } | |
| 243 | |
|
231
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
244 static int modifylog_mark_full(MailModifyLog *log) |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
245 { |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
246 log->header->sync_id = SYNC_ID_FULL; |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
247 |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
248 if (msync(log->mmap_base, sizeof(ModifyLogHeader), MS_SYNC) < 0) |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
249 return modifylog_set_syscall_error(log, "msync()"); |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
250 |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
251 return TRUE; |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
252 } |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
253 |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
254 static int modifylog_open_and_init_file(MailModifyLog *log, const char *path) |
| 0 | 255 { |
| 256 int fd, ret; | |
| 257 | |
|
237
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
258 if (log->index->nodiskspace) |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
259 return FALSE; |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
260 |
| 0 | 261 fd = open(path, O_RDWR | O_CREAT, 0660); |
| 262 if (fd == -1) { | |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
263 if (errno == ENOSPC) |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
264 log->index->nodiskspace = TRUE; |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
265 |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
266 return index_file_set_syscall_error(log->index, path, "open()"); |
| 0 | 267 } |
| 268 | |
| 257 | 269 /* if we can't get the lock, we fail. it shouldn't happen. */ |
| 270 ret = file_try_lock(fd, F_WRLCK); | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
271 if (ret < 0) { |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
272 index_file_set_syscall_error(log->index, path, |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
273 "file_wait_lock()"); |
| 257 | 274 } else if (ret == 0) { |
| 275 index_set_error(log->index, "Couldn't get exclusive lock for " | |
| 276 "created modify log %s", path); | |
| 0 | 277 } |
| 278 | |
| 257 | 279 if (ret > 0 && mail_modifylog_init_fd(log, fd, path)) { |
| 280 /* drop back to read lock */ | |
| 281 if (file_wait_lock(fd, F_RDLCK) < 0) { | |
| 282 modifylog_set_syscall_error(log, "file_wait_lock()"); | |
| 283 ret = -1; | |
| 284 } | |
| 285 | |
| 259 | 286 if (ret > 0 && (log->header == NULL || |
| 287 modifylog_mark_full(log))) { | |
|
231
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
288 mail_modifylog_close(log); |
| 0 | 289 |
|
231
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
290 log->fd = fd; |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
291 log->filepath = i_strdup(path); |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
292 return TRUE; |
|
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
293 } |
| 0 | 294 } |
| 295 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
296 if (close(fd) < 0) |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
297 index_file_set_syscall_error(log->index, path, "close()"); |
| 0 | 298 return FALSE; |
| 299 } | |
| 300 | |
| 301 int mail_modifylog_create(MailIndex *index) | |
| 302 { | |
| 303 MailModifyLog *log; | |
| 304 const char *path; | |
| 305 | |
| 306 i_assert(index->lock_type == MAIL_LOCK_EXCLUSIVE); | |
| 307 | |
| 308 log = mail_modifylog_new(index); | |
| 309 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
310 if (index->nodiskspace) { |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
311 log->mmap_full_length = MODIFY_LOG_INITIAL_SIZE; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
312 log->mmap_base = mmap_anon(log->mmap_full_length); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
313 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
314 mail_modifylog_init_header(log, log->mmap_base); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
315 log->header = log->mmap_base; |
|
237
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
316 log->mmap_used_length = log->header->used_file_size; |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
317 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
318 log->anon_mmap = TRUE; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
319 log->filepath = i_strdup("(in-memory modify log)"); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
320 } else { |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
321 path = t_strconcat(log->index->filepath, ".log", NULL); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
322 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
323 if (!modifylog_open_and_init_file(log, path) || |
| 240 | 324 !mmap_update(log, TRUE)) { |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
325 /* fatal failure */ |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
326 mail_modifylog_free(log); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
327 return FALSE; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
328 } |
| 0 | 329 } |
| 330 | |
| 331 log->synced_id = log->header->sync_id; | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
332 log->synced_position = log->mmap_used_length; |
| 0 | 333 return TRUE; |
| 334 } | |
| 335 | |
| 336 /* Returns 1 = ok, 0 = full, -1 = error */ | |
| 337 static int mail_modifylog_open_and_verify(MailModifyLog *log, const char *path) | |
| 338 { | |
| 339 ModifyLogHeader hdr; | |
|
237
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
340 ssize_t ret; |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
341 int fd; |
| 0 | 342 |
| 343 fd = open(path, O_RDWR); | |
| 344 if (fd == -1) { | |
| 345 if (errno != ENOENT) { | |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
346 index_file_set_syscall_error(log->index, path, |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
347 "open()"); |
| 0 | 348 } |
| 349 return -1; | |
| 350 } | |
| 351 | |
| 257 | 352 if (file_wait_lock(fd, F_RDLCK) < 0) { |
| 353 modifylog_set_syscall_error(log, "file_wait_lock()"); | |
| 354 (void)close(fd); | |
| 355 return -1; | |
| 356 } | |
| 357 | |
|
237
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
358 ret = read(fd, &hdr, sizeof(hdr)); |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
359 if (ret < 0) |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
360 index_file_set_syscall_error(log->index, path, "read()"); |
|
237
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
361 else if (ret != sizeof(hdr)) { |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
362 index_set_error(log->index, "Corrupted modify log %s ", path); |
| 0 | 363 ret = -1; |
|
237
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
364 |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
365 (void)unlink(path); |
| 0 | 366 } |
| 367 | |
| 258 | 368 if (ret > 0 && hdr.indexid != log->index->indexid) { |
| 0 | 369 index_set_error(log->index, "IndexID mismatch for modify log " |
| 370 "file %s", path); | |
| 371 ret = -1; | |
| 115 | 372 |
| 373 /* we have to rebuild it, make sure it's deleted. */ | |
| 374 (void)unlink(path); | |
| 0 | 375 } |
| 376 | |
| 258 | 377 if (ret > 0 && hdr.sync_id == SYNC_ID_FULL) { |
| 0 | 378 /* full */ |
| 379 ret = 0; | |
| 380 } | |
| 381 | |
| 258 | 382 if (ret > 0) { |
| 0 | 383 log->fd = fd; |
| 384 log->filepath = i_strdup(path); | |
| 385 } else { | |
| 386 (void)close(fd); | |
| 387 } | |
| 388 | |
| 259 | 389 return ret > 0; |
| 0 | 390 } |
| 391 | |
| 392 static int mail_modifylog_find_or_create(MailModifyLog *log) | |
| 393 { | |
| 394 const char *path1, *path2; | |
| 115 | 395 int i, ret; |
| 0 | 396 |
| 397 for (i = 0; i < 2; i++) { | |
| 398 /* first try <index>.log */ | |
| 399 path1 = t_strconcat(log->index->filepath, ".log", NULL); | |
| 115 | 400 path2 = t_strconcat(log->index->filepath, ".log.2", NULL); |
| 401 | |
| 402 ret = mail_modifylog_open_and_verify(log, path1); | |
| 403 if (ret == 1) | |
| 0 | 404 return TRUE; |
| 405 | |
| 115 | 406 if (ret == 0) { |
| 407 /* then <index>.log.2 */ | |
| 408 if (mail_modifylog_open_and_verify(log, path2) == 1) | |
| 409 return TRUE; | |
| 410 } | |
| 0 | 411 |
| 412 /* try creating/reusing them */ | |
|
231
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
413 if (modifylog_open_and_init_file(log, path1)) |
| 0 | 414 return TRUE; |
| 415 | |
|
231
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
416 if (modifylog_open_and_init_file(log, path2)) |
| 0 | 417 return TRUE; |
| 418 | |
| 419 /* maybe the file was just switched, check the logs again */ | |
| 420 } | |
| 421 | |
|
237
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
422 if (!log->index->nodiskspace) { |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
423 index_set_error(log->index, "We could neither use nor create " |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
424 "the modify log for index %s", |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
425 log->index->filepath); |
|
06d6eca0a45f
Fixes for no diskspace handling. seems to work now.
Timo Sirainen <tss@iki.fi>
parents:
234
diff
changeset
|
426 } |
| 0 | 427 return FALSE; |
| 428 } | |
| 429 | |
| 430 int mail_modifylog_open_or_create(MailIndex *index) | |
| 431 { | |
| 432 MailModifyLog *log; | |
| 433 | |
| 434 log = mail_modifylog_new(index); | |
| 435 | |
| 436 if (!mail_modifylog_find_or_create(log) || | |
| 240 | 437 !mmap_update(log, TRUE)) { |
| 0 | 438 /* fatal failure */ |
| 439 mail_modifylog_free(log); | |
| 440 return FALSE; | |
| 441 } | |
| 442 | |
| 443 log->synced_id = log->header->sync_id; | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
444 log->synced_position = log->mmap_used_length; |
| 0 | 445 return TRUE; |
| 446 } | |
| 447 | |
| 448 void mail_modifylog_free(MailModifyLog *log) | |
| 449 { | |
| 450 log->index->modifylog = NULL; | |
| 451 | |
| 452 mail_modifylog_close(log); | |
| 453 i_free(log); | |
| 454 } | |
| 455 | |
| 456 int mail_modifylog_sync_file(MailModifyLog *log) | |
| 457 { | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
458 if (!log->modified || log->anon_mmap) |
| 0 | 459 return TRUE; |
| 460 | |
| 461 if (log->mmap_base != NULL) { | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
462 if (msync(log->mmap_base, log->mmap_used_length, MS_SYNC) < 0) |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
463 return modifylog_set_syscall_error(log, "msync()"); |
| 0 | 464 } |
| 465 | |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
466 if (fsync(log->fd) < 0) |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
467 return modifylog_set_syscall_error(log, "fsync()"); |
| 0 | 468 |
| 469 log->modified = FALSE; | |
| 470 return TRUE; | |
| 471 } | |
| 472 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
473 static int mail_modifylog_grow(MailModifyLog *log) |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
474 { |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
475 uoff_t new_fsize; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
476 void *base; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
477 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
478 new_fsize = (uoff_t)log->mmap_full_length + MODIFYLOG_GROW_SIZE; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
479 i_assert(new_fsize < OFF_T_MAX); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
480 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
481 if (log->anon_mmap) { |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
482 i_assert(new_fsize < SSIZE_T_MAX); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
483 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
484 base = mremap_anon(log->mmap_base, log->mmap_full_length, |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
485 (size_t)new_fsize, MREMAP_MAYMOVE); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
486 if (base == MAP_FAILED) { |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
487 modifylog_set_syscall_error(log, "mremap_anon()"); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
488 return FALSE; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
489 } |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
490 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
491 log->mmap_base = base; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
492 log->mmap_full_length = (size_t)new_fsize; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
493 return TRUE; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
494 } |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
495 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
496 if (file_set_size(log->fd, (off_t)new_fsize) < 0) { |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
497 if (errno == ENOSPC) |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
498 log->index->nodiskspace = TRUE; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
499 return modifylog_set_syscall_error(log, "file_set_size()"); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
500 } |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
501 |
| 240 | 502 if (!mmap_update(log, TRUE)) |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
503 return FALSE; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
504 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
505 return TRUE; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
506 } |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
507 |
| 0 | 508 static int mail_modifylog_append(MailModifyLog *log, ModifyLogRecord *rec, |
| 509 int external_change) | |
| 510 { | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
511 ModifyLogRecord *destrec; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
512 |
| 0 | 513 i_assert(log->index->lock_type == MAIL_LOCK_EXCLUSIVE); |
| 514 i_assert(rec->seq != 0); | |
| 515 i_assert(rec->uid != 0); | |
| 516 | |
| 517 if (!external_change) { | |
| 518 switch (mail_modifylog_have_other_users(log)) { | |
| 519 case 0: | |
| 520 /* we're the only one having this log open, | |
| 521 no need for modify log. */ | |
| 522 return TRUE; | |
| 523 case -1: | |
| 524 return FALSE; | |
| 525 } | |
| 526 } | |
| 527 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
528 if (log->mmap_used_length == log->mmap_full_length) { |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
529 if (!mail_modifylog_grow(log)) |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
530 return FALSE; |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
531 } |
| 0 | 532 |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
533 i_assert(log->header->used_file_size == log->mmap_used_length); |
| 240 | 534 i_assert(log->mmap_used_length + sizeof(ModifyLogRecord) <= |
| 535 log->mmap_full_length); | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
536 |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
537 destrec = (ModifyLogRecord *) ((char *) log->mmap_base + |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
538 log->mmap_used_length); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
539 memcpy(destrec, rec, sizeof(ModifyLogRecord)); |
|
223
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
540 |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
541 if (!external_change && log->header->sync_id == log->synced_id) { |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
542 log->synced_position += sizeof(ModifyLogRecord); |
|
ca6967899c05
More cleanups. lib-storage should handle "out of disk space" conditions
Timo Sirainen <tss@iki.fi>
parents:
222
diff
changeset
|
543 log->synced_id++; |
| 0 | 544 } |
| 545 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
546 log->header->used_file_size += sizeof(ModifyLogRecord); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
547 log->mmap_used_length += sizeof(ModifyLogRecord); |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
548 |
| 0 | 549 log->header->sync_id++; |
| 550 log->modified = TRUE; | |
| 551 | |
| 552 return TRUE; | |
| 553 } | |
| 554 | |
| 555 int mail_modifylog_add_expunge(MailModifyLog *log, unsigned int seq, | |
| 556 unsigned int uid, int external_change) | |
| 557 { | |
| 558 ModifyLogRecord rec; | |
| 559 | |
| 560 /* expunges must not be added when log isn't synced */ | |
| 561 i_assert(external_change || log->synced_id == log->header->sync_id); | |
| 562 | |
| 563 rec.type = RECORD_TYPE_EXPUNGE; | |
| 564 rec.seq = seq; | |
| 565 rec.uid = uid; | |
| 566 return mail_modifylog_append(log, &rec, external_change); | |
| 567 } | |
| 568 | |
| 569 int mail_modifylog_add_flags(MailModifyLog *log, unsigned int seq, | |
| 570 unsigned int uid, int external_change) | |
| 571 { | |
| 572 ModifyLogRecord rec; | |
| 573 | |
| 574 rec.type = RECORD_TYPE_FLAGS_CHANGED; | |
| 575 rec.seq = seq; | |
| 576 rec.uid = uid; | |
| 577 return mail_modifylog_append(log, &rec, external_change); | |
| 578 } | |
| 579 | |
| 580 ModifyLogRecord *mail_modifylog_get_nonsynced(MailModifyLog *log, | |
| 581 unsigned int *count) | |
| 582 { | |
| 583 ModifyLogRecord *rec, *end_rec; | |
| 584 | |
| 585 i_assert(log->index->lock_type != MAIL_LOCK_UNLOCK); | |
| 586 | |
| 587 *count = 0; | |
| 240 | 588 if (!mmap_update(log, FALSE)) |
| 0 | 589 return NULL; |
| 590 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
591 i_assert(log->synced_position <= log->mmap_used_length); |
| 0 | 592 i_assert(log->synced_position >= sizeof(ModifyLogHeader)); |
| 593 | |
| 594 rec = (ModifyLogRecord *) ((char *) log->mmap_base + | |
| 595 log->synced_position); | |
| 596 end_rec = (ModifyLogRecord *) ((char *) log->mmap_base + | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
597 log->mmap_used_length); |
| 0 | 598 *count = (unsigned int) (end_rec - rec); |
| 599 return rec; | |
| 600 } | |
| 601 | |
| 602 static int mail_modifylog_switch_file(MailModifyLog *log) | |
| 603 { | |
| 604 MailIndex *index = log->index; | |
| 605 | |
| 606 mail_modifylog_free(log); | |
| 607 return mail_modifylog_open_or_create(index); | |
| 608 } | |
| 609 | |
| 610 static void mail_modifylog_try_switch_file(MailModifyLog *log) | |
| 611 { | |
| 612 const char *path; | |
| 613 | |
| 614 path = t_strconcat(log->index->filepath, | |
| 615 log->second_log ? ".log" : ".log.2", NULL); | |
| 616 | |
|
231
bbd248788571
we shouldn't crash anymore when modify log gets full
Timo Sirainen <tss@iki.fi>
parents:
223
diff
changeset
|
617 (void)modifylog_open_and_init_file(log, path); |
| 0 | 618 } |
| 619 | |
| 620 int mail_modifylog_mark_synced(MailModifyLog *log) | |
| 621 { | |
| 622 i_assert(log->index->lock_type != MAIL_LOCK_UNLOCK); | |
| 623 | |
| 240 | 624 if (!mmap_update(log, FALSE)) |
|
90
ccb155c2c93f
mail_modifylog_mark_synced() didn't update mmap
Timo Sirainen <tss@iki.fi>
parents:
50
diff
changeset
|
625 return FALSE; |
|
ccb155c2c93f
mail_modifylog_mark_synced() didn't update mmap
Timo Sirainen <tss@iki.fi>
parents:
50
diff
changeset
|
626 |
| 0 | 627 if (log->header->sync_id == SYNC_ID_FULL) { |
| 628 /* log file is full, switch to next one */ | |
| 629 return mail_modifylog_switch_file(log); | |
| 630 } | |
| 631 | |
| 632 if (log->synced_id == log->header->sync_id) { | |
| 633 /* we are already synced */ | |
| 634 return TRUE; | |
| 635 } | |
| 636 | |
| 637 log->synced_id = log->header->sync_id; | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
638 log->synced_position = log->mmap_used_length; |
| 0 | 639 |
| 640 log->modified = TRUE; | |
| 641 | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
642 if (log->mmap_used_length > MAX_MODIFYLOG_SIZE) { |
| 0 | 643 /* if the other file isn't locked, switch to it */ |
| 644 mail_modifylog_try_switch_file(log); | |
| 645 return TRUE; | |
| 646 } | |
| 647 | |
| 648 return TRUE; | |
| 649 } | |
| 650 | |
| 651 static int compare_uint(const void *p1, const void *p2) | |
| 652 { | |
| 653 const unsigned int *u1 = p1; | |
| 654 const unsigned int *u2 = p2; | |
| 655 | |
| 656 return *u1 < *u2 ? -1 : *u1 > *u2 ? 1 : 0; | |
| 657 } | |
| 658 | |
| 659 const unsigned int * | |
| 660 mail_modifylog_seq_get_expunges(MailModifyLog *log, | |
| 661 unsigned int first_seq, | |
| 662 unsigned int last_seq, | |
| 663 unsigned int *expunges_before) | |
| 664 { | |
| 665 ModifyLogRecord *rec, *end_rec; | |
| 666 unsigned int last_pos_seq, before, max_records, *arr, *expunges; | |
| 667 | |
| 668 i_assert(log->index->lock_type != MAIL_LOCK_UNLOCK); | |
| 669 | |
| 670 *expunges_before = 0; | |
| 671 | |
| 240 | 672 if (!mmap_update(log, FALSE)) |
| 0 | 673 return NULL; |
| 674 | |
| 675 /* find the first expunged message that affects our range */ | |
| 676 rec = (ModifyLogRecord *) ((char *) log->mmap_base + | |
| 677 log->synced_position); | |
| 678 end_rec = (ModifyLogRecord *) ((char *) log->mmap_base + | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
679 log->mmap_used_length); |
| 0 | 680 |
| 681 while (rec < end_rec) { | |
| 682 if (rec->type == RECORD_TYPE_EXPUNGE && rec->seq <= last_seq) | |
| 683 break; | |
| 684 rec++; | |
| 685 } | |
| 686 | |
| 687 if (rec >= end_rec) { | |
| 688 /* none found */ | |
|
222
cf4d065f2f85
lots of cleanups. also index/datafile is now capable of staying in memory,
Timo Sirainen <tss@iki.fi>
parents:
221
diff
changeset
|
689 return no_expunges; |
| 0 | 690 } |
| 691 | |
| 692 /* allocate memory for the returned array. the file size - synced | |
| 693 position should be quite near the amount of memory we need, unless | |
| 694 there's lots of FLAGS_CHANGED records which is why there's the | |
| 695 second check to make sure it's not unneededly large. */ | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
696 max_records = (log->mmap_used_length - |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
697 MODIFYLOG_FILE_POSITION(log, rec)) / |
| 0 | 698 sizeof(ModifyLogRecord); |
| 699 if (max_records > last_seq - first_seq + 1) | |
| 700 max_records = last_seq - first_seq + 1; | |
| 701 | |
| 702 expunges = arr = t_malloc((max_records+1) * sizeof(unsigned int)); | |
| 703 | |
| 704 /* last_pos_seq is updated all the time to contain the last_seq | |
| 705 comparable to current record's seq. number */ | |
| 706 last_pos_seq = last_seq; | |
| 707 | |
| 708 before = 0; | |
| 709 for (; rec < end_rec; rec++) { | |
| 710 if (rec->type != RECORD_TYPE_EXPUNGE) | |
| 711 continue; | |
| 712 | |
| 713 if (rec->seq + before < first_seq) { | |
| 714 /* before our range */ | |
| 715 before++; | |
| 716 last_pos_seq--; | |
| 717 } else if (rec->seq <= last_pos_seq) { | |
| 718 /* within our range */ | |
| 719 last_pos_seq--; | |
| 720 | |
| 721 if (max_records-- == 0) { | |
| 722 /* log contains more data than it should | |
| 723 have - must be corrupted. */ | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
724 modifylog_set_corrupted(log, |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
725 "Contains more data than expected"); |
| 0 | 726 return NULL; |
| 727 } | |
| 728 | |
| 729 *arr++ = rec->uid; | |
| 730 } | |
| 731 } | |
| 732 *arr = 0; | |
| 733 | |
| 734 /* sort the UID array, not including the terminating 0 */ | |
| 735 qsort(expunges, (unsigned int) (arr - expunges), sizeof(unsigned int), | |
| 736 compare_uint); | |
| 737 | |
| 738 *expunges_before = before; | |
| 739 return expunges; | |
| 740 } | |
| 741 | |
| 742 const unsigned int * | |
| 743 mail_modifylog_uid_get_expunges(MailModifyLog *log, | |
| 744 unsigned int first_uid, | |
| 745 unsigned int last_uid) | |
| 746 { | |
| 747 /* pretty much copy&pasted from sequence code above .. | |
| 748 kind of annoying */ | |
| 749 ModifyLogRecord *rec, *end_rec; | |
| 750 unsigned int before, max_records, *arr, *expunges; | |
| 751 | |
| 752 i_assert(log->index->lock_type != MAIL_LOCK_UNLOCK); | |
| 753 | |
| 240 | 754 if (!mmap_update(log, FALSE)) |
| 0 | 755 return NULL; |
| 756 | |
| 757 /* find the first expunged message that affects our range */ | |
| 758 rec = (ModifyLogRecord *) ((char *) log->mmap_base + | |
| 759 log->synced_position); | |
| 760 end_rec = (ModifyLogRecord *) ((char *) log->mmap_base + | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
761 log->mmap_used_length); |
| 0 | 762 |
| 763 while (rec < end_rec) { | |
| 764 if (rec->type == RECORD_TYPE_EXPUNGE && rec->uid <= last_uid) | |
| 765 break; | |
| 766 rec++; | |
| 767 } | |
| 768 | |
| 769 if (rec >= end_rec) { | |
| 770 /* none found */ | |
|
222
cf4d065f2f85
lots of cleanups. also index/datafile is now capable of staying in memory,
Timo Sirainen <tss@iki.fi>
parents:
221
diff
changeset
|
771 return no_expunges; |
| 0 | 772 } |
| 773 | |
| 774 /* allocate memory for the returned array. the file size - synced | |
| 775 position should be quite near the amount of memory we need, unless | |
| 776 there's lots of FLAGS_CHANGED records which is why there's the | |
| 777 second check to make sure it's not unneededly large. */ | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
778 max_records = (log->mmap_used_length - |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
779 MODIFYLOG_FILE_POSITION(log, rec)) / |
| 0 | 780 sizeof(ModifyLogRecord); |
| 781 if (max_records > last_uid - first_uid + 1) | |
| 782 max_records = last_uid - first_uid + 1; | |
| 783 | |
| 784 expunges = arr = t_malloc((max_records+1) * sizeof(unsigned int)); | |
| 785 | |
| 786 before = 0; | |
| 787 while (rec < end_rec) { | |
| 788 if (rec->type == RECORD_TYPE_EXPUNGE && | |
| 789 rec->uid >= first_uid && rec->uid <= last_uid) { | |
| 790 /* within our range */ | |
| 791 if (max_records-- == 0) { | |
| 792 /* log contains more data than it should | |
| 793 have - must be corrupted. */ | |
|
234
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
794 modifylog_set_corrupted(log, |
|
aef7c7a8f691
Modify log is now able to stay in memory. Some other fixes/cleanups.
Timo Sirainen <tss@iki.fi>
parents:
231
diff
changeset
|
795 "Contains more data than expected"); |
| 0 | 796 return NULL; |
| 797 } | |
| 798 *arr++ = rec->uid; | |
| 799 } | |
| 800 rec++; | |
| 801 } | |
| 802 *arr = 0; | |
| 803 | |
| 804 /* sort the UID array, not including the terminating 0 */ | |
| 805 qsort(expunges, (unsigned int) (arr - expunges), sizeof(unsigned int), | |
| 806 compare_uint); | |
| 807 | |
| 808 return expunges; | |
| 809 } |