dovecot/core-2.2: src/lib/buffer.c annotate

annotate src/lib/buffer.c @ 903:fd8888f6f037 HEAD

Naming style changes, finally got tired of most of the typedefs. Also the previous enum -> macro change reverted so that we don't use the highest bit anymore, that's incompatible with old indexes so they will be rebuilt.

author	Timo Sirainen <tss@iki.fi>
date	Sun, 05 Jan 2003 15:09:51 +0200
parents	e73389a2324a
children	4d6b69558add

rev	line source
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	1 /*
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	2 Copyright (c) 2002 Timo Sirainen
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	3
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	4 Permission is hereby granted, free of charge, to any person obtaining
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	5 a copy of this software and associated documentation files (the
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	6 "Software"), to deal in the Software without restriction, including
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	7 without limitation the rights to use, copy, modify, merge, publish,
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	8 distribute, sublicense, and/or sell copies of the Software, and to
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	9 permit persons to whom the Software is furnished to do so, subject to
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	10 the following conditions:
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	11
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	12 The above copyright notice and this permission notice shall be
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	13 included in all copies or substantial portions of the Software.
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	14
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	16 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	17 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	18 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	19 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	20 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	21 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	22 */
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	23
805 5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	24 /* @UNSAFE: whole file */
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	25
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	26 #include "lib.h"
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	27 #include "buffer.h"
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	28
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	29 struct buffer {
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	30 pool_t pool;
831 0ae9b03a0f05 Last update broke used size. Timo Sirainen <tss@iki.fi> parents: 830 diff changeset	31
832 e1ca4ef76ab4 whops, reverted unwanted changes Timo Sirainen <tss@iki.fi> parents: 831 diff changeset	32 const unsigned char *r_buffer;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	33 unsigned char *w_buffer;
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	34
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	35 /* buffer_set_start_pos() modifies start_pos, but internally we deal
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	36 only with absolute positions. buffer_check_read\|write modifies
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	37 given position to absolute one.
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	38
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	39 start_pos <= used <= alloc <= max_alloc.
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	40 start_pos <= limit <= max_alloc */
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	41 size_t start_pos, used, alloc, max_alloc, limit;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	42
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	43 unsigned int alloced:1;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	44 unsigned int readonly:1;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	45 unsigned int hard:1;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	46 };
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	47
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	48 static void buffer_alloc(buffer_t *buf, size_t size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	49 {
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	50 i_assert(buf->w_buffer == NULL \|\| buf->alloced);
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	51
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	52 if (size == buf->alloc)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	53 return;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	54
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	55 i_assert(size > buf->alloc);
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	56
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	57 buf->alloc = size;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	58 if (buf->w_buffer == NULL)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	59 buf->w_buffer = p_malloc(buf->pool, buf->alloc);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	60 else
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	61 buf->w_buffer = p_realloc(buf->pool, buf->w_buffer, buf->alloc);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	62 buf->r_buffer = buf->w_buffer;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	63 buf->alloced = TRUE;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	64 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	65
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	66 static int buffer_check_read(const buffer_t *buf,
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	67 size_t pos, size_t data_size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	68 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	69 size_t used_size, max_size;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	70
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	71 used_size = I_MIN(buf->used, buf->limit);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	72 if (*pos >= used_size - buf->start_pos)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	73 return FALSE;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	74
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	75 *pos += buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	76 max_size = used_size - *pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	77 if (*data_size > max_size)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	78 *data_size = max_size;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	79 return TRUE;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	80 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	81
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	82 static int buffer_check_write(buffer_t buf, size_t pos,
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	83 size_t *data_size, int accept_partial)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	84 {
831 0ae9b03a0f05 Last update broke used size. Timo Sirainen <tss@iki.fi> parents: 830 diff changeset	85 size_t max_size, new_size, alloc_size;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	86
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	87 if (buf->readonly)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	88 return FALSE;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	89
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	90 /* check that we don't overflow size_t */
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	91 if (*pos >= (size_t)-1 - buf->start_pos)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	92 return FALSE;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	93 *pos += buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	94
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	95 max_size = (size_t)-1 - *pos;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	96 if (*data_size <= max_size)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	97 new_size = pos + data_size;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	98 else {
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	99 if (max_size == 0 \|\| !accept_partial)
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	100 return FALSE;
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	101
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	102 new_size = *pos + max_size;
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	103 *data_size = max_size;
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	104 }
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	105
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	106 /* make sure we're within our limits */
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	107 if (new_size > buf->limit) {
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	108 if (buf->hard) {
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	109 i_panic("Buffer full (%"PRIuSIZE_T" > "
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	110 "%"PRIuSIZE_T")",
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	111 new_size, buf->limit);
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	112 }
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	113
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	114 if (!accept_partial \|\| *pos >= buf->limit)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	115 return FALSE;
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	116
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	117 new_size = buf->limit;
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	118 data_size = new_size - pos;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	119 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	120
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	121 /* see if we need to grow the buffer */
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	122 if (new_size > buf->alloc) {
831 0ae9b03a0f05 Last update broke used size. Timo Sirainen <tss@iki.fi> parents: 830 diff changeset	123 alloc_size = nearest_power(new_size);
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	124 if (alloc_size > buf->limit)
831 0ae9b03a0f05 Last update broke used size. Timo Sirainen <tss@iki.fi> parents: 830 diff changeset	125 alloc_size = buf->limit;
0ae9b03a0f05 Last update broke used size. Timo Sirainen <tss@iki.fi> parents: 830 diff changeset	126
0ae9b03a0f05 Last update broke used size. Timo Sirainen <tss@iki.fi> parents: 830 diff changeset	127 if (alloc_size != buf->alloc)
0ae9b03a0f05 Last update broke used size. Timo Sirainen <tss@iki.fi> parents: 830 diff changeset	128 buffer_alloc(buf, alloc_size);
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	129 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	130
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	131 if (new_size > buf->used)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	132 buf->used = new_size;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	133 return TRUE;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	134 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	135
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	136 buffer_t *buffer_create_static(pool_t pool, size_t size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	137 {
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	138 buffer_t *buf;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	139
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	140 buf = p_new(pool, buffer_t, 1);
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	141 buf->pool = pool;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	142 buf->max_alloc = buf->limit = size;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	143 buffer_alloc(buf, size);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	144 return buf;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	145 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	146
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	147 buffer_t *buffer_create_static_hard(pool_t pool, size_t size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	148 {
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	149 buffer_t *buf;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	150
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	151 buf = buffer_create_static(pool, size);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	152 buf->hard = TRUE;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	153 return buf;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	154 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	155
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	156 buffer_t buffer_create_data(pool_t pool, void data, size_t size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	157 {
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	158 buffer_t *buf;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	159
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	160 buf = p_new(pool, buffer_t, 1);
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	161 buf->pool = pool;
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	162 buf->alloc = buf->max_alloc = buf->limit = size;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	163 buf->r_buffer = buf->w_buffer = data;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	164 return buf;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	165 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	166
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	167 buffer_t buffer_create_const_data(pool_t pool, const void data, size_t size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	168 {
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	169 buffer_t *buf;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	170
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	171 buf = p_new(pool, buffer_t, 1);
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	172 buf->pool = pool;
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	173 buf->used = buf->alloc = buf->max_alloc = buf->limit = size;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	174 buf->r_buffer = data;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	175 buf->readonly = TRUE;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	176 return buf;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	177 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	178
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	179 buffer_t *buffer_create_dynamic(pool_t pool, size_t init_size, size_t max_size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	180 {
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	181 buffer_t *buf;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	182
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	183 buf = p_new(pool, buffer_t, 1);
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	184 buf->pool = pool;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	185 buf->max_alloc = buf->limit = max_size;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	186 buffer_alloc(buf, init_size);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	187 return buf;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	188 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	189
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	190 void buffer_free(buffer_t *buf)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	191 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	192 if (buf->alloced)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	193 p_free(buf->pool, buf->w_buffer);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	194 p_free(buf->pool, buf);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	195 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	196
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	197 void buffer_free_without_data(buffer_t buf)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	198 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	199 void *data;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	200
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	201 data = buf->w_buffer;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	202 p_free(buf->pool, buf);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	203 return data;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	204 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	205
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	206 size_t buffer_write(buffer_t *buf, size_t pos,
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	207 const void *data, size_t data_size)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	208 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	209 if (!buffer_check_write(buf, &pos, &data_size, TRUE))
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	210 return 0;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	211
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	212 memcpy(buf->w_buffer + pos, data, data_size);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	213 return data_size;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	214 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	215
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	216 size_t buffer_append(buffer_t buf, const void data, size_t data_size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	217 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	218 return buffer_write(buf, buf->used - buf->start_pos, data, data_size);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	219 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	220
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	221 size_t buffer_append_c(buffer_t *buf, char chr)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	222 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	223 size_t pos, data_size = 1;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	224
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	225 pos = buf->used - buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	226 if (!buffer_check_write(buf, &pos, &data_size, TRUE))
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	227 return 0;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	228
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	229 if (data_size == 1)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	230 buf->w_buffer[pos] = chr;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	231 return data_size;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	232 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	233
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	234 size_t buffer_insert(buffer_t *buf, size_t pos,
805 5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	235 const void *data, size_t data_size)
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	236 {
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	237 size_t move_size, size;
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	238
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	239 /* move_size == number of bytes we have to move forward to make space */
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	240 move_size = I_MIN(buf->used, buf->limit) - buf->start_pos;
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	241 if (pos >= move_size)
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	242 return 0;
805 5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	243 move_size -= pos;
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	244
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	245 /* size == number of bytes we want to modify after pos */
805 5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	246 if (data_size < (size_t)-1 - move_size)
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	247 size = data_size + move_size;
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	248 else
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	249 size = (size_t)-1;
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	250
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	251 if (!buffer_check_write(buf, &pos, &size, TRUE))
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	252 return 0;
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	253
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	254 i_assert(size >= move_size);
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	255 size -= move_size;
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	256 /* size == number of bytes we actually inserted. data_size usually. */
805 5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	257
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	258 memmove(buf->w_buffer + pos + size, buf->w_buffer + pos, move_size);
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	259 memcpy(buf->w_buffer + pos, data, size);
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	260 return size;
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	261 }
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	262
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	263 size_t buffer_delete(buffer_t *buf, size_t pos, size_t size)
805 5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	264 {
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	265 size_t end_size;
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	266
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	267 if (buf->readonly)
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	268 return 0;
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	269
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	270 end_size = I_MIN(buf->used, buf->limit) - buf->start_pos;
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	271 if (pos >= end_size)
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	272 return 0;
805 5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	273 end_size -= pos;
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	274
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	275 if (size < end_size) {
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	276 /* delete from between */
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	277 end_size -= size;
805 5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	278 memmove(buf->w_buffer + buf->start_pos + pos,
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	279 buf->w_buffer + buf->start_pos + pos + size, end_size);
805 5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	280 } else {
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	281 /* delete the rest of the buffer */
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	282 size = end_size;
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	283 end_size = 0;
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	284 }
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	285
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	286 buffer_set_used_size(buf, pos + end_size);
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	287 return size;
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	288 }
5ac361acb316 Marked all non-trivial buffer modifications with @UNSAFE tag. Several Timo Sirainen <tss@iki.fi> parents: 765 diff changeset	289
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	290 size_t buffer_copy(buffer_t *dest, size_t dest_pos,
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	291 const buffer_t *src, size_t src_pos, size_t copy_size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	292 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	293 if (!buffer_check_read(src, &src_pos, &copy_size))
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	294 return 0;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	295
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	296 if (!buffer_check_write(dest, &dest_pos, &copy_size, TRUE))
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	297 return 0;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	298
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	299 if (src == dest) {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	300 memmove(dest->w_buffer + dest_pos,
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	301 src->r_buffer + src_pos, copy_size);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	302 } else {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	303 memcpy(dest->w_buffer + dest_pos,
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	304 src->r_buffer + src_pos, copy_size);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	305 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	306 return copy_size;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	307 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	308
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	309 size_t buffer_append_buf(buffer_t dest, const buffer_t src,
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	310 size_t src_pos, size_t copy_size)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	311 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	312 return buffer_copy(dest, dest->used - dest->start_pos,
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	313 src, src_pos, copy_size);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	314 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	315
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	316 void buffer_get_space(buffer_t buf, size_t pos, size_t size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	317 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	318 if (!buffer_check_write(buf, &pos, &size, FALSE))
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	319 return NULL;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	320
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	321 return buf->w_buffer + pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	322 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	323
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	324 void buffer_append_space(buffer_t buf, size_t size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	325 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	326 return buffer_get_space(buf, buf->used - buf->start_pos, size);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	327 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	328
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	329 const void buffer_get_data(const buffer_t buf, size_t *used_size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	330 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	331 if (used_size != NULL)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	332 *used_size = I_MIN(buf->used, buf->limit) - buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	333 return buf->r_buffer + buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	334 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	335
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	336 void buffer_get_modifyable_data(const buffer_t buf, size_t *used_size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	337 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	338 if (used_size != NULL)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	339 *used_size = I_MIN(buf->used, buf->limit) - buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	340 return buf->w_buffer + buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	341 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	342
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	343 void buffer_set_used_size(buffer_t *buf, size_t used_size)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	344 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	345 i_assert(used_size <= I_MIN(buf->alloc, buf->limit) - buf->start_pos);
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	346
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	347 buf->used = used_size + buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	348 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	349
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	350 size_t buffer_get_used_size(const buffer_t *buf)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	351 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	352 return I_MIN(buf->used, buf->limit) - buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	353 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	354
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	355 size_t buffer_set_start_pos(buffer_t *buf, size_t abs_pos)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	356 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	357 size_t old = buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	358
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	359 i_assert(abs_pos <= I_MIN(buf->used, buf->limit));
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	360
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	361 buf->start_pos = abs_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	362 return old;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	363 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	364
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	365 size_t buffer_get_start_pos(const buffer_t *buf)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	366 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	367 return buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	368 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	369
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	370 size_t buffer_set_limit(buffer_t *buf, size_t limit)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	371 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	372 size_t old = buf->limit;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	373
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	374 if (limit > (size_t)-1 - buf->start_pos)
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	375 limit = (size_t)-1;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	376 else
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	377 limit += buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	378
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	379 buf->limit = I_MIN(limit, buf->max_alloc);
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	380 return old - buf->start_pos;
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	381 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	382
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	383 size_t buffer_get_limit(const buffer_t *buf)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	384 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	385 return buf->limit - buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	386 }
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	387
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	388 size_t buffer_get_size(const buffer_t *buf)
765 553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	389 {
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	390 return buf->alloc - buf->start_pos;
553f050c8313 Added buffer API. Point is to hide all buffer writing behind this API which Timo Sirainen <tss@iki.fi> parents: diff changeset	391 }
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	392
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	393 #ifdef BUFFER_TEST
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	394 /* gcc buffer.c -o testbuffer liblib.a -Wall -DHAVE_CONFIG_H -DBUFFER_TEST -g */
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	395 int main(void)
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	396 {
903 fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the Timo Sirainen <tss@iki.fi> parents: 851 diff changeset	397 buffer_t *buf;
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	398 char data[12], *bufdata;
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	399 size_t bufsize;
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	400
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	401 lib_init();
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	402
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	403 memset(data, '!', sizeof(data));
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	404 bufdata = data + 1;
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	405 bufsize = sizeof(data)-2;
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	406
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	407 buf = buffer_create_data(system_pool, bufdata, bufsize);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	408 i_assert(buffer_write(buf, 5, "12345", 5) == 5);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	409 i_assert(buf->used == 10);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	410 i_assert(buffer_write(buf, 6, "12345", 5) == 4);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	411 i_assert(buf->used == 10);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	412
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	413 buf = buffer_create_data(system_pool, bufdata, bufsize);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	414 i_assert(buffer_write(buf, 0, "1234567890", 10) == 10);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	415 i_assert(buffer_write(buf, 0, "12345678901", 11) == 10);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	416 i_assert(buffer_append(buf, "1", 1) == 0);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	417 i_assert(buf->used == 10);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	418
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	419 buf = buffer_create_data(system_pool, bufdata, bufsize);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	420 i_assert(buffer_append(buf, "12345", 5) == 5);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	421 i_assert(buf->used == 5);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	422 i_assert(buffer_append(buf, "123456", 6) == 5);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	423 i_assert(buf->used == 10);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	424
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	425 buf = buffer_create_data(system_pool, data, sizeof(data));
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	426 buffer_set_used_size(buf, 1);
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	427 buffer_set_start_pos(buf, 1);
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	428 buffer_set_limit(buf, sizeof(data)-2);
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	429 i_assert(buffer_append(buf, "12345", 5) == 5);
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	430 i_assert(buffer_insert(buf, 2, "123456", 6) == 5);
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	431 i_assert(buf->used == 11);
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	432 i_assert(memcmp(buf->r_buffer, "!1212345345", 11) == 0);
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	433 i_assert(buffer_delete(buf, 2, 5) == 5);
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	434 i_assert(buf->used == 6);
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	435 i_assert(memcmp(buf->r_buffer, "!12345", 6) == 0);
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	436 i_assert(buffer_delete(buf, 3, 5) == 2);
851 e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	437 i_assert(buf->used == 4);
e73389a2324a Several fixes. I think it's beginning to look safe. Timo Sirainen <tss@iki.fi> parents: 832 diff changeset	438 i_assert(memcmp(buf->r_buffer, "!123", 4) == 0);
830 27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	439
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	440 i_assert(data[0] == '!');
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	441 i_assert(data[sizeof(data)-1] == '!');
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	442 return 0;
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	443 }
27774d0493dd Fixed several bugs, added a small testsuite. Still requires careful auditing. Timo Sirainen <tss@iki.fi> parents: 805 diff changeset	444 #endif

Mercurial > dovecot > core-2.2

annotate src/lib/buffer.c @ 903:fd8888f6f037 HEAD