90847fc881
I'm checking for zero-size allocations and assert()-ing them, so we can more easily get backtraces and debug problems, but we'll also allow -DNDEBUG people to live on the edge if they wish. We do not rely on errno when checking for OOM errors because some implementations of malloc do not set it, and malloc is commonly overridden by userspace wrappers. I've spent some time looking through the source and didn't find any obvious places where we would explicitly allocate 0 bytes, so we shouldn't trip any of those assertions. We also avoid allocating zero bytes because C libraries don't handle this consistently (some return NULL, some not); and it's dangerous either way. git-svn-id: https://svn.musicpd.org/mpd/trunk@4690 09075e82-0dd4-0310-85a5-a0d7c8717e4f
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/* the Music Player Daemon (MPD)
|
|
* (c)2003-2006 by Warren Dukes (warren.dukes@gmail.com)
|
|
* This project's homepage is: http://www.musicpd.org
|
|
*
|
|
* This program 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.
|
|
*
|
|
* This program 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
|
|
*/
|
|
|
|
#ifndef UTILS_H
|
|
#define UTILS_H
|
|
|
|
#include "../config.h"
|
|
#include "gcc.h"
|
|
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
|
|
#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
|
|
|
|
char *myFgets(char *buffer, int bufferSize, FILE * fp);
|
|
|
|
char *strDupToUpper(char *str);
|
|
|
|
void stripReturnChar(char *string);
|
|
|
|
void my_usleep(long usec);
|
|
|
|
int ipv6Supported(void);
|
|
|
|
char *appendToString(char *dest, const char *src);
|
|
|
|
unsigned long readLEuint32(const unsigned char *p);
|
|
|
|
/* trivial functions, keep them inlined */
|
|
static inline void xclose(int fd)
|
|
{
|
|
while (close(fd) && errno == EINTR);
|
|
}
|
|
|
|
static inline ssize_t xread(int fd, void *buf, size_t len)
|
|
{
|
|
ssize_t nr;
|
|
while (1) {
|
|
nr = read(fd, buf, len);
|
|
if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
|
|
continue;
|
|
return nr;
|
|
}
|
|
}
|
|
|
|
static inline ssize_t xwrite(int fd, const void *buf, size_t len)
|
|
{
|
|
ssize_t nr;
|
|
while (1) {
|
|
nr = write(fd, buf, len);
|
|
if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
|
|
continue;
|
|
return nr;
|
|
}
|
|
}
|
|
|
|
mpd_malloc char *xstrdup(const char *s);
|
|
|
|
mpd_malloc void *xmalloc(size_t size);
|
|
|
|
mpd_malloc void *xrealloc(void *ptr, size_t size);
|
|
|
|
mpd_malloc void *xcalloc(size_t nmemb, size_t size);
|
|
|
|
#endif
|