driver/abstime.c: add time_monotonic_us

Origin commit data
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Branch: ni/coolstream
Commit: e7c5d8925f
Author: [CST] Focus <focus.cst@gmail.com>
Date: 2012-03-05 (Mon, 05 Mar 2012)


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No further description and justification available within origin commit message!

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This commit was generated by Migit

src/driver/abstime.c

@@ -1,3 +1,4 @@
+#include <stdint.h>
 #include <stdio.h> /* for perror */
 #include <time.h>
 
@@ -27,3 +28,14 @@ time_t time_monotonic(void)
 	   time comparisons if the uptime is low, so add 7 days */
 	return t.tv_sec + 604800;
 }
+
+uint64_t time_monotonic_us(void)
+{
+	struct timespec t;
+	if (clock_gettime(CLOCK_MONOTONIC, &t))
+	{
+		perror("time_monotonic_us clock_gettime");
+		return -1;
+	}
+	return ((int64_t)t.tv_sec + (uint64_t)604800) * (uint64_t) 1000000 + (uint64_t) t.tv_nsec / (uint64_t)1000;
+}

src/driver/abstime.h

@@ -1,3 +1,5 @@
+#include <stdint.h>
+
 #ifndef _ABS_TIME_H_
 #define _ABS_TIME_H_
 #ifdef __cplusplus
@@ -6,6 +8,7 @@ extern "C"
 #endif
 extern time_t time_monotonic_ms(void);
 extern time_t time_monotonic(void);
+uint64_t time_monotonic_us(void);
 #ifdef __cplusplus
 }
 #endif