Create header tile for timeutils, rename tval.c to time.c

2013-12-25 19:42:40 +01:00
parent a147b868c0
commit 9756ca0aeb
2 changed files with 132 additions and 2 deletions
@@ -0,0 +1,99 @@
+#include "ucore/time.h"
+
+struct timeval *
+uc_tvadd(struct timeval *dst, const struct timeval *a, const struct timeval *b)
+{
+    dst->tv_sec = a->tv_sec + b->tv_sec;
+    dst->tv_usec = a->tv_usec + b->tv_usec;
+
+    if (dst->tv_usec >= 1000000) {
+        dst->tv_sec++;
+        dst->tv_usec -= 1000000;
+    }
+
+    return dst;
+}
+
+struct timeval *
+uc_tvsub(struct timeval *dst, const struct timeval *a, const struct timeval *b)
+{
+    dst->tv_sec = a->tv_sec - b->tv_sec;
+    dst->tv_usec = a->tv_usec - b->tv_usec;
+
+    if (dst->tv_usec < 0) {
+        dst->tv_sec--;
+        dst->tv_usec += 1000000;
+    }
+
+    return dst;
+}
+
+int 
+uc_tvcmp(const struct timeval *a, const struct timeval *b)
+{
+    if (a->tv_sec < b->tv_sec)
+        return -1;
+    else if (a->tv_sec > b->tv_sec)
+        return 1;
+
+    if (a->tv_usec < b->tv_usec)
+        return -1;
+    else if (a->tv_usec > b->tv_usec)
+        return 1;
+
+    return 0;
+}
+
+struct timespec *
+uc_tsadd(struct timespec *dst, const struct timespec *a, const struct timespec *b)
+{
+    dst->tv_sec = a->tv_sec + b->tv_sec;
+    dst->tv_nsec = a->tv_nsec + b->tv_nsec;
+
+    if (dst->tv_nsec >= 1000000000) {
+        dst->tv_sec++;
+        dst->tv_nsec -= 1000000000;
+    }
+
+    return dst;
+}
+
+struct timespec *
+uc_tssub(struct timespec *dst, const struct timespec *a, const struct timespec *b)
+{
+    dst->tv_sec = a->tv_sec - b->tv_sec;
+    dst->tv_nsec = a->tv_nsec - b->tv_nsec;
+
+    if (dst->tv_nsec < 0) {
+        dst->tv_sec--;
+        dst->tv_nsec += 1000000000;
+    }
+
+    return dst;
+}
+
+int 
+uc_tscmp(const struct timespec *a, const struct timespec *b)
+{
+    if (a->tv_sec < b->tv_sec)
+        return -1;
+    else if (a->tv_sec > b->tv_sec)
+        return 1;
+
+    if (a->tv_nsec < b->tv_nsec)
+        return -1;
+    else if (a->tv_nsec > b->tv_nsec)
+        return 1;
+
+    return 0;
+}
+
+struct timeval *
+uc_ms2tv(struct timeval *dst, uint64_t ms)
+{
+    dst->tv_sec = ms / 1000;
+    dst->tv_usec = ms % 1000 * 1000;
+
+    return dst;
+}
+