1 files changed, 67 insertions, 1 deletions
diff --git a/include/grpc/support/time.h b/include/grpc/support/time.h
index b3f2f8cd44..66bcfca6ed 100644
--- a/include/grpc/support/time.h
+++ b/include/grpc/support/time.h
@@ -34,6 +34,72 @@
 #ifndef GRPC_SUPPORT_TIME_H
 #define GRPC_SUPPORT_TIME_H
 
-#include <grpc/impl/codegen/time.h>
+#include <grpc/impl/codegen/gpr_types.h>
+
+#include <stddef.h>
+#include <time.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Time constants. */
+GPRAPI gpr_timespec
+gpr_time_0(gpr_clock_type type); /* The zero time interval. */
+GPRAPI gpr_timespec gpr_inf_future(gpr_clock_type type); /* The far future */
+GPRAPI gpr_timespec gpr_inf_past(gpr_clock_type type);   /* The far past. */
+
+#define GPR_MS_PER_SEC 1000
+#define GPR_US_PER_SEC 1000000
+#define GPR_NS_PER_SEC 1000000000
+#define GPR_NS_PER_MS 1000000
+#define GPR_NS_PER_US 1000
+#define GPR_US_PER_MS 1000
+
+/* initialize time subsystem */
+GPRAPI void gpr_time_init(void);
+
+/* Return the current time measured from the given clocks epoch. */
+GPRAPI gpr_timespec gpr_now(gpr_clock_type clock);
+
+/* Convert a timespec from one clock to another */
+GPRAPI gpr_timespec gpr_convert_clock_type(gpr_timespec t,
+                                           gpr_clock_type target_clock);
+
+/* Return -ve, 0, or +ve according to whether a < b, a == b, or a > b
+   respectively.  */
+GPRAPI int gpr_time_cmp(gpr_timespec a, gpr_timespec b);
+
+GPRAPI gpr_timespec gpr_time_max(gpr_timespec a, gpr_timespec b);
+GPRAPI gpr_timespec gpr_time_min(gpr_timespec a, gpr_timespec b);
+
+/* Add and subtract times.  Calculations saturate at infinities. */
+GPRAPI gpr_timespec gpr_time_add(gpr_timespec a, gpr_timespec b);
+GPRAPI gpr_timespec gpr_time_sub(gpr_timespec a, gpr_timespec b);
+
+/* Return a timespec representing a given number of time units. INT64_MIN is
+   interpreted as gpr_inf_past, and INT64_MAX as gpr_inf_future.  */
+GPRAPI gpr_timespec gpr_time_from_micros(int64_t x, gpr_clock_type clock_type);
+GPRAPI gpr_timespec gpr_time_from_nanos(int64_t x, gpr_clock_type clock_type);
+GPRAPI gpr_timespec gpr_time_from_millis(int64_t x, gpr_clock_type clock_type);
+GPRAPI gpr_timespec gpr_time_from_seconds(int64_t x, gpr_clock_type clock_type);
+GPRAPI gpr_timespec gpr_time_from_minutes(int64_t x, gpr_clock_type clock_type);
+GPRAPI gpr_timespec gpr_time_from_hours(int64_t x, gpr_clock_type clock_type);
+
+GPRAPI int32_t gpr_time_to_millis(gpr_timespec timespec);
+
+/* Return 1 if two times are equal or within threshold of each other,
+   0 otherwise */
+GPRAPI int gpr_time_similar(gpr_timespec a, gpr_timespec b,
+                            gpr_timespec threshold);
+
+/* Sleep until at least 'until' - an absolute timeout */
+GPRAPI void gpr_sleep_until(gpr_timespec until);
+
+GPRAPI double gpr_timespec_to_micros(gpr_timespec t);
+
+#ifdef __cplusplus
+}
+#endif
 
 #endif /* GRPC_SUPPORT_TIME_H */