Mercurial > molko
annotate src/libmlk-core/core/buf.c @ 347:0969931b98e4
core: start removing POSIX APIs
author | David Demelier <markand@malikania.fr> |
---|---|
date | Tue, 19 Oct 2021 13:23:30 +0200 |
parents | |
children | 460c78706989 |
rev | line source |
---|---|
347
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
1 /* |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
2 * buf.c -- simple string buffer for C |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
3 * |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
4 * Copyright (c) 2019-2021 David Demelier <markand@malikania.fr> |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
5 * |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
6 * Permission to use, copy, modify, and/or distribute this software for any |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
7 * purpose with or without fee is hereby granted, provided that the above |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
8 * copyright notice and this permission notice appear in all copies. |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
9 * |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
17 */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
18 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
19 #include <assert.h> |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
20 #include <errno.h> |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
21 #include <stdint.h> |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
22 #include <stdlib.h> |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
23 #include <stdio.h> |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
24 #include <string.h> |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
25 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
26 #include "buf.h" |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
27 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
28 /* |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
29 * Try to increase the buffer length by a power of two until we have enough |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
30 * space to fit `desired'. |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
31 * |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
32 * Detects overflow and return -1 if happened or reallocation could not |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
33 * occur. |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
34 */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
35 static int |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
36 growdbl(struct buf *b, size_t desired) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
37 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
38 size_t newcap = b->capacity; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
39 void *newptr; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
40 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
41 while (desired > newcap - b->length) { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
42 const size_t r = newcap * 2; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
43 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
44 /* Overflow occured. */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
45 if (r / newcap != 2) { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
46 #if defined(ENOMEM) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
47 errno = ENOMEM; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
48 #endif |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
49 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
50 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
51 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
52 newcap = r; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
53 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
54 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
55 /* At this step we must have enough room. */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
56 assert(newcap - b->length >= desired); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
57 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
58 /* Pretty much impossible to reach but always assume it's possible. */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
59 if (newcap == SIZE_MAX) { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
60 #if defined(ENOMEM) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
61 errno = ENOMEM; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
62 #endif |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
63 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
64 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
65 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
66 if (!(newptr = BUF_REALLOC(b->data, newcap + 1))) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
67 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
68 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
69 b->data = newptr; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
70 b->capacity = newcap; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
71 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
72 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
73 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
74 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
75 /* |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
76 * Try to allocate just enough space for the `desired' amount of space. This is |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
77 * only used when the buffer is already too large but hasn't reached SIZE_MAX |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
78 * yet. |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
79 * |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
80 * Returns -1 if allocation failed. |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
81 */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
82 static int |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
83 growmin(struct buf *b, size_t desired) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
84 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
85 size_t newcap; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
86 void *newptr; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
87 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
88 if (desired >= SIZE_MAX - b->length) { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
89 #if defined(ENOMEM) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
90 errno = ENOMEM; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
91 #endif |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
92 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
93 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
94 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
95 /* Don't forget to keep what's remaining between capacity and length. */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
96 newcap = b->capacity + (desired - (b->capacity - b->length)); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
97 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
98 /* Try to reallocate. */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
99 if (!(newptr = BUF_REALLOC(b->data, newcap + 1))) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
100 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
101 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
102 b->data = newptr; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
103 b->capacity = newcap; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
104 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
105 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
106 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
107 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
108 /* |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
109 * Entry point for reallocating data. Will try to allocate twice until we have |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
110 * enough room and then only the minimal amount. |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
111 */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
112 static int |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
113 grow(struct buf *b, size_t desired) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
114 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
115 const size_t avail = b->capacity - b->length; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
116 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
117 if (avail >= desired) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
118 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
119 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
120 if (!b->capacity) { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
121 if (!(b->data = BUF_MALLOC(desired + 1))) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
122 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
123 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
124 b->capacity = desired; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
125 } else if (growdbl(b, desired) < 0 && growmin(b, desired) < 0) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
126 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
127 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
128 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
129 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
130 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
131 void |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
132 buf_init(struct buf *b) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
133 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
134 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
135 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
136 memset(b, 0, sizeof (*b)); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
137 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
138 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
139 int |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
140 buf_reserve(struct buf *b, size_t amount) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
141 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
142 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
143 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
144 if (grow(b, amount) < 0) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
145 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
146 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
147 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
148 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
149 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
150 int |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
151 buf_resize(struct buf *b, size_t size, char ch) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
152 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
153 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
154 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
155 /* New size is smaller than curren't length, just update it. */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
156 if (size < b->length) { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
157 b->data[b->length = size] = 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
158 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
159 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
160 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
161 /* New size is bigger, data may be reallocated. */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
162 if (grow(b, size - b->length) < 0) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
163 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
164 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
165 memset(&b->data[b->length], ch, size - b->length); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
166 b->length = size; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
167 b->data[b->length] = 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
168 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
169 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
170 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
171 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
172 int |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
173 buf_shrink(struct buf *b) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
174 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
175 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
176 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
177 void *newptr; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
178 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
179 if (b->length == 0) { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
180 free(b->data); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
181 b->data = NULL; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
182 b->length = b->capacity = 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
183 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
184 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
185 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
186 if (!(newptr = BUF_REALLOC(b->data, b->length + 1))) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
187 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
188 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
189 b->data = newptr; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
190 b->capacity = b->length; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
191 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
192 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
193 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
194 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
195 void |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
196 buf_erase(struct buf *b, size_t pos, size_t count) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
197 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
198 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
199 assert(pos <= b->length); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
200 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
201 if (count > b->length - pos) { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
202 /* Optimize whole erase at pos. */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
203 b->data[pos] = 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
204 b->length = pos; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
205 } else { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
206 memmove(&b->data[pos], &b->data[pos + count], b->length - count); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
207 b->length -= count; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
208 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
209 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
210 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
211 int |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
212 buf_putc(struct buf *b, char c) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
213 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
214 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
215 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
216 if (grow(b, 1) < 0) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
217 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
218 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
219 b->data[b->length++] = c; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
220 b->data[b->length] = 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
221 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
222 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
223 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
224 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
225 int |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
226 buf_puts(struct buf *b, const char *s) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
227 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
228 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
229 assert(s); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
230 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
231 const size_t len = strlen(s); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
232 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
233 if (grow(b, len) < 0) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
234 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
235 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
236 memcpy(&b->data[b->length], s, len + 1); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
237 b->length += len; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
238 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
239 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
240 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
241 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
242 int |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
243 buf_printf(struct buf *b, const char *fmt, ...) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
244 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
245 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
246 assert(fmt); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
247 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
248 va_list ap; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
249 int ret; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
250 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
251 va_start(ap, fmt); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
252 ret = buf_vprintf(b, fmt, ap); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
253 va_end(ap); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
254 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
255 return ret; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
256 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
257 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
258 int |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
259 buf_vprintf(struct buf *b, const char *fmt, va_list args) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
260 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
261 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
262 assert(fmt); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
263 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
264 va_list ap; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
265 int amount; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
266 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
267 /* Determine length. */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
268 va_copy(ap, args); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
269 amount = vsnprintf(NULL, 0, fmt, ap); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
270 va_end(ap); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
271 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
272 if (amount < 0) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
273 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
274 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
275 /* Do actual copy. */ |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
276 if (grow(b, amount) < 0) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
277 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
278 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
279 va_copy(ap, args); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
280 amount = vsprintf(&b->data[b->length], fmt, ap); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
281 va_end(ap); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
282 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
283 if (amount < 0) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
284 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
285 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
286 b->length += amount; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
287 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
288 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
289 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
290 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
291 int |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
292 buf_sub(struct buf *b, const struct buf *src, size_t pos, size_t count) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
293 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
294 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
295 assert(src); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
296 assert(pos <= src->length); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
297 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
298 if (count >= src->length) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
299 count = src->length - pos; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
300 if (!(b->data = BUF_MALLOC(count + 1))) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
301 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
302 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
303 strncpy(b->data, &src->data[pos], count); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
304 b->length = count; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
305 b->capacity = count; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
306 b->data[b->length] = 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
307 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
308 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
309 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
310 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
311 int |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
312 buf_dup(struct buf *b, const struct buf *src) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
313 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
314 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
315 assert(src); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
316 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
317 if (!src->data) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
318 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
319 if (!(b->data = BUF_MALLOC(src->length + 1))) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
320 return -1; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
321 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
322 memcpy(b->data, src->data, src->length + 1); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
323 b->capacity = src->length; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
324 b->length = src->length; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
325 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
326 return 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
327 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
328 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
329 void |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
330 buf_clear(struct buf *b) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
331 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
332 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
333 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
334 if (b->data) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
335 b->data[b->length = 0] = 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
336 } |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
337 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
338 void |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
339 buf_finish(struct buf *b) |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
340 { |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
341 assert(b); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
342 |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
343 BUF_FREE(b->data); |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
344 b->data = NULL; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
345 b->capacity = b->length = 0; |
0969931b98e4
core: start removing POSIX APIs
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
346 } |