add plibsys

1 files changed, 109 insertions, 0 deletions

diff --git a/3rdparty/plibsys/src/ptimeprofiler-posix.c b/3rdparty/plibsys/src/ptimeprofiler-posix.c
new file mode 100644
index 0000000..b913bbb
--- /dev/null
+++ b/3rdparty/plibsys/src/ptimeprofiler-posix.c
@@ -0,0 +1,109 @@
+/*
+ * The MIT License
+ *
+ * Copyright (C) 2013-2016 Alexander Saprykin <saprykin.spb@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * 'Software'), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "ptimeprofiler.h"
+#include "ptimeprofiler-private.h"
+
+#include <unistd.h>
+#include <time.h>
+#include <sys/time.h>
+
+#ifndef _POSIX_MONOTONIC_CLOCK
+#  define _POSIX_MONOTONIC_CLOCK (-1)
+#endif
+
+typedef puint64 (* PPOSIXTicksFunc) (void);
+
+static PPOSIXTicksFunc pp_time_profiler_ticks_func = NULL;
+
+#if (_POSIX_MONOTONIC_CLOCK >= 0) || defined (P_OS_IRIX)
+static puint64 pp_time_profiler_get_ticks_clock ();
+#endif
+
+static puint64 pp_time_profiler_get_ticks_gtod ();
+
+#if (_POSIX_MONOTONIC_CLOCK >= 0) || defined (P_OS_IRIX)
+static puint64
+pp_time_profiler_get_ticks_clock ()
+{
+	struct timespec	ts;
+
+#ifdef P_OS_IRIX
+	if (P_UNLIKELY (clock_gettime (CLOCK_SGI_CYCLE, &ts) != 0)) {
+#else
+	if (P_UNLIKELY (clock_gettime (CLOCK_MONOTONIC, &ts) != 0)) {
+#endif
+		P_ERROR ("PTimeProfiler::pp_time_profiler_get_ticks_clock: clock_gettime() failed");
+		return pp_time_profiler_get_ticks_gtod ();
+	} else
+		return (puint64) (ts.tv_sec * 1000000 + ts.tv_nsec / 1000);
+}
+#endif
+
+static puint64
+pp_time_profiler_get_ticks_gtod ()
+{
+	struct timeval tv;
+
+	if (P_UNLIKELY (gettimeofday (&tv, NULL) != 0)) {
+		P_ERROR ("PTimeProfiler::pp_time_profiler_get_ticks_gtod: gettimeofday() failed");
+		return 0;
+	}
+
+	return (puint64) (tv.tv_sec * 1000000 + tv.tv_usec);
+}
+
+puint64
+p_time_profiler_get_ticks_internal ()
+{
+	return pp_time_profiler_ticks_func ();
+}
+
+puint64
+p_time_profiler_elapsed_usecs_internal (const PTimeProfiler *profiler)
+{
+	return pp_time_profiler_ticks_func () - profiler->counter;
+}
+
+void
+p_time_profiler_init (void)
+{
+#if defined (P_OS_IRIX) || (_POSIX_MONOTONIC_CLOCK > 0)
+	pp_time_profiler_ticks_func = (PPOSIXTicksFunc) pp_time_profiler_get_ticks_clock;
+#elif (_POSIX_MONOTONIC_CLOCK == 0) && defined (_SC_MONOTONIC_CLOCK)
+	if (P_LIKELY (sysconf (_SC_MONOTONIC_CLOCK) > 0))
+		pp_time_profiler_ticks_func = (PPOSIXTicksFunc) pp_time_profiler_get_ticks_clock;
+	else
+		pp_time_profiler_ticks_func = (PPOSIXTicksFunc) pp_time_profiler_get_ticks_gtod;
+#else
+	pp_time_profiler_ticks_func = (PPOSIXTicksFunc) pp_time_profiler_get_ticks_gtod;
+#endif
+}
+
+void
+p_time_profiler_shutdown (void)
+{
+	pp_time_profiler_ticks_func = NULL;
+}