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Move timeval calculation functions into their own file.

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@926 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Pierre Ossman 2006-05-18 06:45:43 +00:00
parent 5f458db84f
commit 0796ead0db
23 changed files with 234 additions and 149 deletions
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136
src/polyp/util.c
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@ -23,39 +23,33 @@
#include <config.h>
#endif
#include <stdarg.h>
#include <stdlib.h>
#include <signal.h>
#include <errno.h>
#include <assert.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <ctype.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#ifdef HAVE_GRP_H
#include <grp.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_WINDOWS_H
#include <windows.h>
#endif
#include <polyp/xmalloc.h>
#include "../polypcore/winsock.h"
#include <polypcore/log.h>
#include <polypcore/core-util.h>
@ -154,112 +148,6 @@ char *pa_get_home_dir(char *s, size_t l) {
#endif
}
struct timeval *pa_gettimeofday(struct timeval *tv) {
#ifdef HAVE_GETTIMEOFDAY
assert(tv);
return gettimeofday(tv, NULL) < 0 ? NULL : tv;
#elif defined(OS_IS_WIN32)
/*
* Copied from implementation by Steven Edwards (LGPL).
* Found on wine mailing list.
*/
#if defined(_MSC_VER) || defined(__BORLANDC__)
#define EPOCHFILETIME (116444736000000000i64)
#else
#define EPOCHFILETIME (116444736000000000LL)
#endif
FILETIME ft;
LARGE_INTEGER li;
__int64 t;
assert(tv);
GetSystemTimeAsFileTime(&ft);
li.LowPart = ft.dwLowDateTime;
li.HighPart = ft.dwHighDateTime;
t = li.QuadPart; /* In 100-nanosecond intervals */
t -= EPOCHFILETIME; /* Offset to the Epoch time */
t /= 10; /* In microseconds */
tv->tv_sec = (long)(t / 1000000);
tv->tv_usec = (long)(t % 1000000);
return tv;
#else
#error "Platform lacks gettimeofday() or equivalent function."
#endif
}
pa_usec_t pa_timeval_diff(const struct timeval *a, const struct timeval *b) {
pa_usec_t r;
assert(a && b);
/* Check which whan is the earlier time and swap the two arguments if reuqired. */
if (pa_timeval_cmp(a, b) < 0) {
const struct timeval *c;
c = a;
a = b;
b = c;
}
/* Calculate the second difference*/
r = ((pa_usec_t) a->tv_sec - b->tv_sec)* 1000000;
/* Calculate the microsecond difference */
if (a->tv_usec > b->tv_usec)
r += ((pa_usec_t) a->tv_usec - b->tv_usec);
else if (a->tv_usec < b->tv_usec)
r -= ((pa_usec_t) b->tv_usec - a->tv_usec);
return r;
}
int pa_timeval_cmp(const struct timeval *a, const struct timeval *b) {
assert(a && b);
if (a->tv_sec < b->tv_sec)
return -1;
if (a->tv_sec > b->tv_sec)
return 1;
if (a->tv_usec < b->tv_usec)
return -1;
if (a->tv_usec > b->tv_usec)
return 1;
return 0;
}
pa_usec_t pa_timeval_age(const struct timeval *tv) {
struct timeval now;
assert(tv);
return pa_timeval_diff(pa_gettimeofday(&now), tv);
}
struct timeval* pa_timeval_add(struct timeval *tv, pa_usec_t v) {
unsigned long secs;
assert(tv);
secs = (v/1000000);
tv->tv_sec += (unsigned long) secs;
v -= secs*1000000;
tv->tv_usec += v;
/* Normalize */
while (tv->tv_usec >= 1000000) {
tv->tv_sec++;
tv->tv_usec -= 1000000;
}
return tv;
}
char *pa_get_binary_name(char *s, size_t l) {
#ifdef HAVE_READLINK