src/ucx/allocator.c

Sun, 13 Nov 2022 10:57:38 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 13 Nov 2022 10:57:38 +0100
changeset 432
7c9137f9e7f9
parent 415
d938228c382e
child 438
22eca559aded
permissions
-rw-r--r--

add http_send_response function that is usable for non-blocking IO

91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
1 /*
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
3 *
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
4 * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
5 *
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
6 * Redistribution and use in source and binary forms, with or without
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
7 * modification, are permitted provided that the following conditions are met:
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
8 *
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
9 * 1. Redistributions of source code must retain the above copyright
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
10 * notice, this list of conditions and the following disclaimer.
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
11 *
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
12 * 2. Redistributions in binary form must reproduce the above copyright
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
13 * notice, this list of conditions and the following disclaimer in the
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
14 * documentation and/or other materials provided with the distribution.
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
15 *
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
26 * POSSIBILITY OF SUCH DAMAGE.
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
27 */
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
28
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
29 #include "cx/allocator.h"
254
4784c14aa639 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 135
diff changeset
30
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
31 #include <stdlib.h>
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
32
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
33 __attribute__((__malloc__, __alloc_size__(2)))
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
34 static void *cx_malloc_stdlib(
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
35 __attribute__((__unused__)) void *d,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
36 size_t n
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
37 ) {
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
38 return malloc(n);
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
39 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
40
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
41 __attribute__((__warn_unused_result__, __alloc_size__(3)))
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
42 static void *cx_realloc_stdlib(
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
43 __attribute__((__unused__)) void *d,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
44 void *mem,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
45 size_t n
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
46 ) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
47 return realloc(mem, n);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
48 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
49
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
50 __attribute__((__malloc__, __alloc_size__(2, 3)))
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
51 static void *cx_calloc_stdlib(
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
52 __attribute__((__unused__)) void *d,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
53 size_t nelem,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
54 size_t n
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
55 ) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
56 return calloc(nelem, n);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
57 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
58
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
59 __attribute__((__nonnull__))
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
60 static void cx_free_stdlib(
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
61 __attribute__((__unused__)) void *d,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
62 void *mem
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
63 ) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
64 free(mem);
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
65 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
66
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
67 static cx_allocator_class cx_default_allocator_class = {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
68 cx_malloc_stdlib,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
69 cx_realloc_stdlib,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
70 cx_calloc_stdlib,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
71 cx_free_stdlib
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
72 };
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
73
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
74 struct cx_allocator_s cx_default_allocator = {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
75 &cx_default_allocator_class,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
76 NULL
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
77 };
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
78 CxAllocator *cxDefaultAllocator = &cx_default_allocator;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
79
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
80 /* IMPLEMENTATION OF HIGH LEVEL API */
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
81
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
82 void *cxMalloc(
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
83 CxAllocator const *allocator,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
84 size_t n
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
85 ) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
86 return allocator->cl->malloc(allocator->data, n);
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
87 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
88
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
89 void *cxRealloc(
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
90 CxAllocator const *allocator,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
91 void *mem,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
92 size_t n
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
93 ) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
94 return allocator->cl->realloc(allocator->data, mem, n);
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
95 }
415
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
96
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
97 int cxReallocate(
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
98 CxAllocator const *allocator,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
99 void **mem,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
100 size_t n
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
101 ) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
102 void *nmem = allocator->cl->realloc(allocator->data, *mem, n);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
103 if (nmem == NULL) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
104 return 1;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
105 } else {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
106 *mem = nmem;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
107 return 0;
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
108 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
109 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
110
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
111 void *cxCalloc(
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
112 CxAllocator const *allocator,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
113 size_t nelem,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
114 size_t n
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
115 ) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
116 return allocator->cl->calloc(allocator->data, nelem, n);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
117 }
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
118
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
119 void cxFree(
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
120 CxAllocator const *allocator,
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
121 void *mem
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
122 ) {
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
123 allocator->cl->free(allocator->data, mem);
d938228c382e switch from ucx 2 to 3
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 254
diff changeset
124 }

mercurial