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
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/*
* Copyright (C) 2000-2001 the xine project
*
* This file is part of xine, a unix video player.
*
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* xine is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
* $Id: utils.c,v 1.3 2001/11/17 22:40:01 miguelfreitas Exp $
*
*/
#define _POSIX_PTHREAD_SEMANTICS 1 /* for 5-arg getpwuid_r on solaris */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <pwd.h>
#include <time.h>
#include <sys/types.h>
#include <pthread.h>
#ifndef __GNUC__
#define __FUNCTION__ __func__
#endif
/*
*
*/
void *xine_xmalloc(size_t size) {
void *ptr;
if((ptr = malloc(size)) == NULL) {
fprintf(stderr, "%s: malloc() failed: %s.\n",
__FUNCTION__, strerror(errno));
return NULL;
}
memset(ptr, 0, size);
return ptr;
}
typedef struct mem_aligned_s {
struct mem_aligned_s *next;
void *ptr;
void *aligned_ptr;
} mem_aligned_t;
static mem_aligned_t *mem_aligned;
static pthread_mutex_t mem_aligned_mutex;
/*
*
*/
void *xine_xmalloc_aligned (size_t alignment, size_t size) {
char *pMem, *ptr;
mem_aligned_t *reg;
ptr = pMem = xine_xmalloc (size+alignment);
while ((int) pMem % alignment)
pMem++;
pthread_mutex_lock (&mem_aligned_mutex);
reg = malloc( sizeof(mem_aligned_t) );
reg->next = mem_aligned;
reg->ptr = ptr;
reg->aligned_ptr = pMem;
mem_aligned = reg;
pthread_mutex_unlock (&mem_aligned_mutex);
return pMem;
}
void xine_free_aligned( void *p ) {
mem_aligned_t *reg, *last;
pthread_mutex_lock (&mem_aligned_mutex);
last = NULL;
reg = mem_aligned;
while( reg != NULL ) {
if ( reg->aligned_ptr == p ) {
free( reg->ptr );
if( last )
last->next = reg->next;
else
mem_aligned = reg->next;
free( reg );
pthread_mutex_unlock (&mem_aligned_mutex);
return;
}
last = reg;
reg = reg->next;
}
pthread_mutex_unlock (&mem_aligned_mutex);
}
void xine_init_mem_aligned(void) {
mem_aligned = NULL;
pthread_mutex_init (&mem_aligned_mutex, NULL);
}
/*
*
*/
const char *xine_get_homedir(void) {
struct passwd *pw = NULL;
char *homedir = NULL;
#ifdef HAVE_GETPWUID_R
int ret;
struct passwd pwd;
char *buffer = NULL;
int bufsize = 128;
buffer = (char *) xine_xmalloc(bufsize);
if((ret = getpwuid_r(getuid(), &pwd, buffer, bufsize, &pw)) < 0) {
#else
if((pw = getpwuid(getuid())) == NULL) {
#endif
if((homedir = getenv("HOME")) == NULL) {
fprintf(stderr, "Unable to get home directory, set it to /tmp.\n");
homedir = strdup("/tmp");
}
}
else {
if(pw)
homedir = strdup(pw->pw_dir);
}
#ifdef HAVE_GETPWUID_R
if(buffer)
free(buffer);
#endif
return homedir;
}
/*
*
*/
char *xine_chomp(char *str) {
char *pbuf;
pbuf = str;
while(*pbuf != '\0') pbuf++;
while(pbuf > str) {
if(*pbuf == '\r' || *pbuf == '\n' || *pbuf == '"') pbuf = '\0';
pbuf--;
}
while(*pbuf == '=' || *pbuf == '"') pbuf++;
return pbuf;
}
/*
* A thread-safe usecond sleep
*/
void xine_usec_sleep(unsigned usec) {
#if HAVE_NANOSLEEP
/* nanosleep is prefered on solaris, because it's mt-safe */
struct timespec ts;
ts.tv_sec = usec / 1000000;
ts.tv_nsec = (usec % 1000000) * 1000;
nanosleep(&ts, NULL);
#else
usleep(usec);
#endif
}
|
