Merge pull request #52 from baresip/tmr_jiffies_usec

tmr: add tmr_jiffies_usec() - get accurate microseconds
baresip · Dec 8, 2020 · 2bbcfb5 · 2bbcfb5
2 parents c6ba3a9 + bbf7e55
commit 2bbcfb5
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diff --git a/include/re_tmr.h b/include/re_tmr.h
@@ -22,6 +22,7 @@ struct tmr {
 
 
 void     tmr_poll(struct list *tmrl);
+uint64_t tmr_jiffies_usec(void);
 uint64_t tmr_jiffies(void);
 uint64_t tmr_next_timeout(struct list *tmrl);
 void     tmr_debug(void);

diff --git a/src/tmr/tmr.c b/src/tmr/tmr.c
@@ -3,6 +3,8 @@
  *
  * Copyright (C) 2010 Creytiv.com
  */
+#define _DEFAULT_SOURCE 1
+
 #include <string.h>
 #ifdef HAVE_SYS_TIME_H
 #include <sys/time.h>
@@ -112,6 +114,43 @@ void tmr_poll(struct list *tmrl)
 }
 
 
+/**
+ * Get the timer jiffies in microseconds
+ *
+ * @return Jiffies in [us]
+ */
+uint64_t tmr_jiffies_usec(void)
+{
+	uint64_t jfs;
+
+#if defined(WIN32)
+	LARGE_INTEGER li;
+	static LARGE_INTEGER freq;
+
+	if (!freq.QuadPart)
+		QueryPerformanceFrequency(&freq);
+
+	QueryPerformanceCounter(&li);
+	li.QuadPart *= 1000000;
+	li.QuadPart /= freq.QuadPart;
+
+	jfs = li.QuadPart;
+#else
+	struct timespec now;
+
+	if (0 != clock_gettime(CLOCK_MONOTONIC_RAW, &now)) {
+		DEBUG_WARNING("jiffies: clock_gettime() failed (%m)\n", errno);
+		return 0;
+	}
+
+	jfs  = (long)now.tv_sec * (uint64_t)1000000;
+	jfs += now.tv_nsec/1000;
+#endif
+
+	return jfs;
+}
+
+
 /**
  * Get the timer jiffies in milliseconds
  *