aboutsummaryrefslogtreecommitdiffstats
path: root/libsimple.h
blob: 941d8644b3d87750463a8be4426a054f02f721cd (plain) (blame)
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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
/* See LICENSE file for copyright and license details. */
#ifndef LIBSIMPLE_H
#define LIBSIMPLE_H


#include <arpa/inet.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/un.h>
#include <sys/wait.h>
#include <aio.h>
#include <alloca.h>
#include <ctype.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <grp.h>
#include <inttypes.h>
#include <limits.h>
#include <netdb.h>
#include <poll.h>
#include <pwd.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <time.h>
#include <unistd.h>
#include <wchar.h>
#include <wctype.h>


#if defined(__GNUC__) && !defined(__clang__)
# define _LIBSIMPLE_GCC_ONLY(x) x
#else
# define _LIBSIMPLE_GCC_ONLY(x)
#endif


#include "libsimple/printf.h"
#include "libsimple/definitions.h"
#include "libsimple/memalloc.h"
#include "libsimple/memdup.h"
#include "libsimple/aligned_memdup.h"
#include "libsimple/strdup.h"
#include "libsimple/aligned_strdup.h"
#include "libsimple/strndup.h"
#include "libsimple/aligned_strndup.h"
#include "libsimple/wmemdup.h"
#include "libsimple/aligned_wmemdup.h"
#include "libsimple/wcsdup.h"
#include "libsimple/aligned_wcsdup.h"
#include "libsimple/wcsndup.h"
#include "libsimple/aligned_wcsndup.h"
#include "libsimple/mallocz.h"
#include "libsimple/malloc.h"
#include "libsimple/calloc.h"
#include "libsimple/realloc.h"
#include "libsimple/memalignz.h"
#include "libsimple/memalign.h"
#include "libsimple/vallocz.h"
#include "libsimple/valloc.h"
#include "libsimple/pvallocz.h"
#include "libsimple/pvalloc.h"
#include "libsimple/aligned_allocz.h"
#include "libsimple/aligned_alloc.h"
#include "libsimple/posix_memalignz.h"
#include "libsimple/posix_memalign.h"
#include "libsimple/env.h"
#include "libsimple/time.h"
#include "libsimple/mem.h"
#include "libsimple/memelem.h"
#include "libsimple/array.h"
#include "libsimple/str.h"
#include "libsimple/strn.h"
#include "libsimple/overflow.h"


/**
 * Wrapper for close(3) that only calls close(3)
 * if the file descriptor number is non-negative,
 * and that will set it to -1 after closing
 * 
 * @param   fdp  Pointer to file descriptor number, will
 *               be update to -1 if it is non-negative
 * @return       Return value of close(3) (0 on success,
 *               -1 on error), 0 if `*fdp < 0`
 */
_LIBSIMPLE_GCC_ONLY(__attribute__((__nonnull__)))
static inline int
libsimple_close(int *__fdp)
{
	int __ret;
	if (*__fdp < 0)
		return 0;
	__ret = close(*__fdp);
	*__fdp = -1;
	return __ret;
}


/**
 * Remove an item from a list, keeping the list ordered
 * 
 * `list` must be non-void pointer to a complete type,
 * the type of the pointer will be used to infer the
 * width of the items in the list
 * 
 * @param  list:non-void pointer  The list
 * @param  i:size_t               The index of the item to remove
 * @param  n:size_t               Pointer to the number of items in the list, will be updated
 */
#define LIBSIMPLE_UNLIST(LIST, I, NP) libsimple_unlist((LIST), (I), (NP), sizeof(*(LIST)))
#ifndef UNLIST
# define UNLIST(LIST, I, NP) LIBSIMPLE_UNLIST((LIST), (I), (NP))
#endif


/**
 * Remove an item from a list, keeping the list ordered
 * 
 * @param  list   The list
 * @param  i      The index of the item to remove
 * @param  n      Pointer to the number of items in the list, will be updated
 * @param  width  The width, in bytes, of each item in the list
 */
_LIBSIMPLE_GCC_ONLY(__attribute__((__nonnull__)))
static inline void
libsimple_unlist(void *__list, size_t __i, size_t *__np, size_t __width)
{
        char *__lst = __list;
        memmove(&__lst[__i * __width], &__lst[(__i + 1) * __width], (--*__np - __i) * __width);
}
#ifndef unlist
# define unlist libsimple_unlist
#endif


#endif