1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* Copyright © 2021 Valve Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
*/
#pragma once
#include <stdlib.h>
#include <inttypes.h>
#include <stdbool.h>
#include "macros.h"
#ifdef __cplusplus
extern "C" {
#endif
static inline void *
ptralloc(size_t base_size, unsigned member_count, size_t *member_sizes, void ***members)
{
size_t size = base_size;
for (unsigned i = 0; i < member_count; i++)
size += member_sizes[i];
uint8_t *ptr = (uint8_t*)malloc(size);
if (!ptr)
return NULL;
size_t accum = base_size;
for (unsigned i = 0; i < member_count; i++) {
*members[i] = (void*)(ptr + accum);
accum += member_sizes[i];
}
return (void*)ptr;
}
static inline void *
ptrzalloc(size_t base_size, unsigned member_count, size_t *member_sizes, void ***members)
{
size_t size = base_size;
for (unsigned i = 0; i < member_count; i++)
size += member_sizes[i];
uint8_t *ptr = (uint8_t*)calloc(1, size);
if (!ptr)
return NULL;
size_t accum = base_size;
for (unsigned i = 0; i < member_count; i++) {
*members[i] = (void*)(ptr + accum);
accum += member_sizes[i];
}
return (void*)ptr;
}
#ifdef __cplusplus
}
#endif
|
