Changeset 5513 for pjproject/branches/projects/uwp/pjlib/src/pj/os_timestamp_posix.c

Timestamp:

Dec 28, 2016 3:40:07 AM (8 years ago)

Author:

nanang

Message:

Re #1900: More merged from trunk (r5512 mistakenly contains merged changes in third-party dir only).

Location:

pjproject/branches/projects/uwp

Files:

• . (modified) (1 prop)
• pjlib/src/pj/os_timestamp_posix.c (modified) (1 diff)

pjproject/branches/projects/uwp/pjlib/src/pj/os_timestamp_posix.c

@@ -161 +161 @@
 }
 
+#elif defined(__ANDROID__)
+
+#include <errno.h>
+#include <linux/android_alarm.h>
+#include <fcntl.h>
+#include <time.h>
+
+#define NSEC_PER_SEC    1000000000
+
+static int s_alarm_fd = -1;
+
+void close_alarm_fd()
+{
+    if (s_alarm_fd != -1)
+        close(s_alarm_fd);
+    s_alarm_fd = -1;
+}
+
+PJ_DEF(pj_status_t) pj_get_timestamp(pj_timestamp *ts)
+{
+    struct timespec tp;
+    int err = -1;
+
+    if (s_alarm_fd == -1) {
+        int fd = open("/dev/alarm", O_RDONLY);
+        if (fd >= 0) {
+            s_alarm_fd = fd;
+            pj_atexit(&close_alarm_fd);
+        }
+    }
+    
+    if (s_alarm_fd != -1) {
+        err = ioctl(s_alarm_fd,
+              ANDROID_ALARM_GET_TIME(ANDROID_ALARM_ELAPSED_REALTIME), &tp);
+    }
+    
+    if (err != 0) {
+        /* Fallback to CLOCK_MONOTONIC if /dev/alarm is not found, or
+         * getting ANDROID_ALARM_ELAPSED_REALTIME fails.
+         */
+        err = clock_gettime(CLOCK_MONOTONIC, &tp);
+    }
+
+    if (err != 0) {
+        return PJ_RETURN_OS_ERROR(pj_get_native_os_error());
+    }
+
+    ts->u64 = tp.tv_sec;
+    ts->u64 *= NSEC_PER_SEC;
+    ts->u64 += tp.tv_nsec;
+
+    return PJ_SUCCESS;
+}
+
+PJ_DEF(pj_status_t) pj_get_timestamp_freq(pj_timestamp *freq)
+{
+    freq->u32.hi = 0;
+    freq->u32.lo = NSEC_PER_SEC;
+
+    return PJ_SUCCESS;
+}
+
 #elif defined(USE_POSIX_TIMERS) && USE_POSIX_TIMERS != 0
 #include <sys/time.h>