Move time related functions to POSIX platform file

src/platform-posix.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 13 matching lines @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Platform specific code for POSIX goes here. This is not a platform on its
 // own but contains the parts which are the same across POSIX platforms Linux,
 // Mac OS and FreeBSD.
 
 #include <unistd.h>
 #include <errno.h>
+#include <time.h>
 
 #include <sys/socket.h>
+#include <sys/resource.h>
+#include <sys/time.h>
 #include <sys/types.h>
 
 #include <arpa/inet.h>
 #include <netinet/in.h>
 #include <netdb.h>
 
 #include "v8.h"
 
 #include "platform.h"
 
 
 namespace v8 { namespace internal {
 
 
 // ----------------------------------------------------------------------------
+// POSIX date/time support.
+//
+
+int OS::GetUserTime(uint32_t* secs,  uint32_t* usecs) {
+  struct rusage usage;
+
+  if (getrusage(RUSAGE_SELF, &usage) < 0) return -1;
+  *secs = usage.ru_utime.tv_sec;
+  *usecs = usage.ru_utime.tv_usec;
+  return 0;
+}
+
+
+double OS::TimeCurrentMillis() {
+  struct timeval tv;
+  if (gettimeofday(&tv, NULL) < 0) return 0.0;
+  return (static_cast<double>(tv.tv_sec) * 1000) +
+         (static_cast<double>(tv.tv_usec) / 1000);
+}
+
+
+int64_t OS::Ticks() {
+  // gettimeofday has microsecond resolution.
+  struct timeval tv;
+  if (gettimeofday(&tv, NULL) < 0)
+    return 0;
+  return (static_cast<int64_t>(tv.tv_sec) * 1000000) + tv.tv_usec;
+}
+
+
+char* OS::LocalTimezone(double time) {
+  time_t tv = static_cast<time_t>(floor(time/msPerSecond));
+  struct tm* t = localtime(&tv);
+  return const_cast<char*>(t->tm_zone);
+}
+
+
+double OS::DaylightSavingsOffset(double time) {
+  time_t tv = static_cast<time_t>(floor(time/msPerSecond));
+  struct tm* t = localtime(&tv);
+  return t->tm_isdst > 0 ? 3600 * msPerSecond : 0;
+}
+
+
+double OS::LocalTimeOffset() {
+  time_t tv = time(NULL);
+  struct tm* t = localtime(&tv);
+  // tm_gmtoff includes any daylight savings offset, so subtract it.
+  return static_cast<double>(t->tm_gmtoff * msPerSecond -
+                             (t->tm_isdst > 0 ? 3600 * msPerSecond : 0));
+}
+
+
+// ----------------------------------------------------------------------------
 // POSIX socket support.
 //
 
 class POSIXSocket : public Socket {
  public:
   explicit POSIXSocket() {
     // Create the socket.
     socket_ = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
   }
   explicit POSIXSocket(int socket): socket_(socket) { }
@@ skipping 149 matching lines @@
   return ntohl(value);
 }
 
 
 Socket* OS::CreateSocket() {
   return new POSIXSocket();
 }
 
 
 } }  // namespace v8::internal