Add high-resolution timestamp support

config-unix.mk

@@ -26,6 +26,17 @@ LINKFLAGS=-lm
 
 ifeq (SunOS,$(uname_S))
 LINKFLAGS+=-lsocket -lnsl
+UV_OS_FILE=uv-sunos.c
+endif
+
+ifeq (Darwin,$(uname_S))
+LINKFLAGS+=-framework CoreServices
+UV_OS_FILE=uv-darwin.c
+endif
+
+ifeq (Linux,$(uname_S))
+LINKFLAGS+=-lrt
+UV_OS_FILE=uv-linux.c
 endif
 
 # Need _GNU_SOURCE for strdup?
@@ -35,8 +46,11 @@ RUNNER_LINKFLAGS=$(LINKFLAGS) -pthread
 RUNNER_LIBS=
 RUNNER_SRC=test/runner-unix.c
 
-uv.a: uv-unix.o uv-common.o ev/ev.o c-ares/ares_query.o
-	$(AR) rcs uv.a uv-unix.o uv-common.o ev/ev.o c-ares/*.o
+uv.a: uv-unix.o uv-common.o uv-platform.o ev/ev.o c-ares/ares_query.o
+	$(AR) rcs uv.a uv-unix.o uv-platform.o uv-common.o ev/ev.o c-ares/*.o
+
+uv-platform.o: $(UV_OS_FILE) uv.h uv-unix.h
+	$(CC) $(CFLAGS) -c $(UV_OS_FILE) -o uv-platform.o
 
 uv-unix.o: uv-unix.c uv.h uv-unix.h
 	$(CC) $(CFLAGS) -c uv-unix.c -o uv-unix.o

uv-darwin.c

@@ -0,0 +1,34 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+
+#include <stdint.h>
+#include <CoreServices/CoreServices.h>
+#include <mach/mach.h>
+#include <mach/mach_time.h>
+
+uint64_t uv_get_hrtime() {
+  uint64_t time;
+  Nanoseconds enano;
+  time = mach_absolute_time(); 
+  enano = AbsoluteToNanoseconds(*(AbsoluteTime *)&time);
+  return (*(uint64_t *)&enano);
+}

uv-linux.c

@@ -0,0 +1,35 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+
+#include <stdint.h>
+#include <stddef.h>
+#include <time.h>
+
+/*
+ * There's probably some way to get time from Linux than gettimeofday(). What
+ * it is, I don't know.
+ */
+uint64_t uv_get_hrtime() {
+  struct timespec ts;
+  clock_gettime(CLOCK_MONOTONIC, &ts);
+  return (ts.tv_sec * NANOSEC + ts.tv_nsec);
+}

uv-sunos.c

@@ -0,0 +1,28 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+
+#include <stdint.h>
+#include <sys/time.h>
+
+uint64_t uv_get_hrtime() {
+  return (gethrtime());
+}

uv-win.c

@@ -1764,3 +1764,8 @@ done:
 
   return retVal;
 }
+
+
+uint64_t uv_get_hrtime(void) {
+  assert(0 && "implement me");
+}

uv.h

@@ -372,7 +372,6 @@ struct sockaddr_in uv_ip4_addr(const char* ip, int port);
 /* Gets the executable path */
 int uv_get_exepath(char* buffer, size_t* size);
 
-
 /* the presence of this union forces similar struct layout */
 union uv_any_handle {
   uv_tcp_t tcp;
@@ -397,6 +396,33 @@ typedef struct {
 
 uv_counters_t* uv_counters();
 
+#ifndef	SEC
+#define	SEC		1
+#endif
+
+#ifndef	MILLISEC
+#define	MILLISEC	1000
+#endif
+
+#ifndef	MICROSEC
+#define	MICROSEC	1000000
+#endif
+
+#ifndef	NANOSEC
+#define	NANOSEC		1000000000
+#endif
+
+/*
+ * Returns the current high-resolution real time. This is expressed in
+ * nanoseconds. It is relative to an arbitrary time in the past. It is not
+ * related to the time of day and therefore not subject to clock drift. The
+ * primary use is for measuring performance between intervals.
+ *
+ * Note not every platform can support nanosecond resolution; however, this
+ * value will always be in nanoseconds.
+ */
+extern uint64_t uv_get_hrtime(void);
+
 #ifdef __cplusplus
 }
 #endif