-/* $Id$ */
-
/***
This file is part of PulseAudio.
#include <windows.h>
#endif
-#include <pulsecore/winsock.h>
#include <pulsecore/macro.h>
+#include <pulsecore/core-util.h>
#include "timeval.h"
struct timeval *pa_gettimeofday(struct timeval *tv) {
-#ifdef HAVE_GETTIMEOFDAY
pa_assert(tv);
- pa_assert_se(gettimeofday(tv, NULL) == 0);
- return tv;
-#elif defined(OS_IS_WIN32)
+#if 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;
-
- pa_assert(tv);
+{
+ FILETIME ft;
+ LARGE_INTEGER li;
+ int64_t t;
GetSystemTimeAsFileTime(&ft);
li.LowPart = ft.dwLowDateTime;
t /= 10; /* In microseconds */
tv->tv_sec = (time_t) (t / PA_USEC_PER_SEC);
tv->tv_usec = (suseconds_t) (t % PA_USEC_PER_SEC);
-
- return tv;
+}
+#elif defined(HAVE_GETTIMEOFDAY)
+ pa_assert_se(gettimeofday(tv, NULL) == 0);
#else
#error "Platform lacks gettimeofday() or equivalent function."
#endif
+
+ return tv;
}
pa_usec_t pa_timeval_diff(const struct timeval *a, const struct timeval *b) {
pa_assert(a);
pa_assert(b);
- /* Check which whan is the earlier time and swap the two arguments if required. */
- if (pa_timeval_cmp(a, b) < 0) {
+ /* Check which is the earlier time and swap the two arguments if required. */
+ if (PA_UNLIKELY(pa_timeval_cmp(a, b) < 0)) {
const struct timeval *c;
c = a;
a = b;
}
/* Calculate the second difference*/
- r = ((pa_usec_t) a->tv_sec - b->tv_sec) * PA_USEC_PER_SEC;
+ r = ((pa_usec_t) a->tv_sec - (pa_usec_t) b->tv_sec) * PA_USEC_PER_SEC;
/* Calculate the microsecond difference */
if (a->tv_usec > b->tv_usec)
- r += ((pa_usec_t) a->tv_usec - b->tv_usec);
+ r += (pa_usec_t) a->tv_usec - (pa_usec_t) b->tv_usec;
else if (a->tv_usec < b->tv_usec)
- r -= ((pa_usec_t) b->tv_usec - a->tv_usec);
+ r -= (pa_usec_t) b->tv_usec - (pa_usec_t) a->tv_usec;
return r;
}
}
struct timeval* pa_timeval_add(struct timeval *tv, pa_usec_t v) {
- unsigned long secs;
+ time_t secs;
pa_assert(tv);
- secs = (unsigned long) (v/PA_USEC_PER_SEC);
- tv->tv_sec += secs;
- v -= ((pa_usec_t) secs) * PA_USEC_PER_SEC;
+ secs = (time_t) (v/PA_USEC_PER_SEC);
+ if (PA_UNLIKELY(tv->tv_sec > PA_INT_TYPE_MAX(time_t) - secs))
+ goto overflow;
+
+ tv->tv_sec += secs;
+ v -= (pa_usec_t) secs * PA_USEC_PER_SEC;
tv->tv_usec += (suseconds_t) v;
/* Normalize */
- while (tv->tv_usec >= PA_USEC_PER_SEC) {
+ while ((pa_usec_t) tv->tv_usec >= PA_USEC_PER_SEC) {
+
+ if (PA_UNLIKELY(tv->tv_sec >= PA_INT_TYPE_MAX(time_t)))
+ goto overflow;
+
tv->tv_sec++;
- tv->tv_usec -= PA_USEC_PER_SEC;
+ tv->tv_usec -= (suseconds_t) PA_USEC_PER_SEC;
}
return tv;
+
+overflow:
+ tv->tv_sec = PA_INT_TYPE_MAX(time_t);
+ tv->tv_usec = (suseconds_t) (PA_USEC_PER_SEC-1);
+ return tv;
}
struct timeval* pa_timeval_sub(struct timeval *tv, pa_usec_t v) {
- unsigned long secs;
+ time_t secs;
pa_assert(tv);
- secs = (unsigned long) (v/PA_USEC_PER_SEC);
+ secs = (time_t) (v/PA_USEC_PER_SEC);
+
+ if (PA_UNLIKELY(tv->tv_sec < secs))
+ goto underflow;
+
tv->tv_sec -= secs;
- v -= ((pa_usec_t) secs) * PA_USEC_PER_SEC;
+ v -= (pa_usec_t) secs * PA_USEC_PER_SEC;
if (tv->tv_usec >= (suseconds_t) v)
tv->tv_usec -= (suseconds_t) v;
else {
+
+ if (PA_UNLIKELY(tv->tv_sec <= 0))
+ goto underflow;
+
tv->tv_sec --;
- tv->tv_usec = tv->tv_usec + PA_USEC_PER_SEC - v;
+ tv->tv_usec += (suseconds_t) (PA_USEC_PER_SEC - v);
}
return tv;
+
+underflow:
+ tv->tv_sec = 0;
+ tv->tv_usec = 0;
+ return tv;
}
struct timeval* pa_timeval_store(struct timeval *tv, pa_usec_t v) {
pa_assert(tv);
- tv->tv_sec = v / PA_USEC_PER_SEC;
- tv->tv_usec = v % PA_USEC_PER_SEC;
+ if (PA_UNLIKELY(v == PA_USEC_INVALID)) {
+ tv->tv_sec = PA_INT_TYPE_MAX(time_t);
+ tv->tv_usec = (suseconds_t) (PA_USEC_PER_SEC-1);
+
+ return tv;
+ }
+
+ tv->tv_sec = (time_t) (v / PA_USEC_PER_SEC);
+ tv->tv_usec = (suseconds_t) (v % PA_USEC_PER_SEC);
return tv;
}
pa_usec_t pa_timeval_load(const struct timeval *tv) {
- pa_assert(tv);
+
+ if (PA_UNLIKELY(!tv))
+ return PA_USEC_INVALID;
return
(pa_usec_t) tv->tv_sec * PA_USEC_PER_SEC +