summaryrefslogtreecommitdiffstats
path: root/src/pulse/timeval.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:03:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:03:18 +0000
commit2dd5bc6a074165ddfbd57c4bd52c2d2dac8f47a1 (patch)
tree465b29cb405d3af0b0ad50c78e1dccc636594fec /src/pulse/timeval.h
parentInitial commit. (diff)
downloadpulseaudio-upstream.tar.xz
pulseaudio-upstream.zip
Adding upstream version 14.2.upstream/14.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/pulse/timeval.h')
-rw-r--r--src/pulse/timeval.h87
1 files changed, 87 insertions, 0 deletions
diff --git a/src/pulse/timeval.h b/src/pulse/timeval.h
new file mode 100644
index 0000000..9ecf791
--- /dev/null
+++ b/src/pulse/timeval.h
@@ -0,0 +1,87 @@
+#ifndef footimevalhfoo
+#define footimevalhfoo
+
+/***
+ This file is part of PulseAudio.
+
+ Copyright 2004-2006 Lennart Poettering
+ Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
+ PulseAudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ PulseAudio 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <pulse/cdecl.h>
+#include <pulse/gccmacro.h>
+#include <pulse/sample.h>
+#include <pulse/version.h>
+
+/** \file
+ * Utility functions for handling timeval calculations */
+
+PA_C_DECL_BEGIN
+
+/** The number of milliseconds in a second */
+#define PA_MSEC_PER_SEC ((pa_usec_t) 1000ULL)
+
+/** The number of microseconds in a second */
+#define PA_USEC_PER_SEC ((pa_usec_t) 1000000ULL)
+
+/** The number of nanoseconds in a second */
+#define PA_NSEC_PER_SEC ((unsigned long long) 1000000000ULL)
+
+/** The number of microseconds in a millisecond */
+#define PA_USEC_PER_MSEC ((pa_usec_t) 1000ULL)
+
+/** The number of nanoseconds in a millisecond */
+#define PA_NSEC_PER_MSEC ((unsigned long long) 1000000ULL)
+
+/** The number of nanoseconds in a microsecond */
+#define PA_NSEC_PER_USEC ((unsigned long long) 1000ULL)
+
+/** Invalid time in usec. \since 0.9.15 */
+#define PA_USEC_INVALID ((pa_usec_t) -1)
+
+/** Biggest time in usec. \since 0.9.18 */
+#define PA_USEC_MAX ((pa_usec_t) -2)
+
+struct timeval;
+
+/** Return the current wallclock timestamp, just like UNIX gettimeofday(). */
+struct timeval *pa_gettimeofday(struct timeval *tv);
+
+/** Calculate the difference between the two specified timeval
+ * structs. */
+pa_usec_t pa_timeval_diff(const struct timeval *a, const struct timeval *b) PA_GCC_PURE;
+
+/** Compare the two timeval structs and return 0 when equal, negative when a < b, positive otherwise */
+int pa_timeval_cmp(const struct timeval *a, const struct timeval *b) PA_GCC_PURE;
+
+/** Return the time difference between now and the specified timestamp */
+pa_usec_t pa_timeval_age(const struct timeval *tv);
+
+/** Add the specified time in microseconds to the specified timeval structure */
+struct timeval* pa_timeval_add(struct timeval *tv, pa_usec_t v);
+
+/** Subtract the specified time in microseconds to the specified timeval structure. \since 0.9.11 */
+struct timeval* pa_timeval_sub(struct timeval *tv, pa_usec_t v);
+
+/** Store the specified usec value in the timeval struct. \since 0.9.7 */
+struct timeval* pa_timeval_store(struct timeval *tv, pa_usec_t v);
+
+/** Load the specified tv value and return it in usec. \since 0.9.7 */
+pa_usec_t pa_timeval_load(const struct timeval *tv);
+
+PA_C_DECL_END
+
+#endif