Create the sys/time.h portability header

Summary: Windows doesn't have it.

Reviewed By: yfeldblum

Differential Revision: D2979215

fb-gh-sync-id: 030bdcaa44deb18834903705a26369ce0b13abc6
shipit-source-id: 030bdcaa44deb18834903705a26369ce0b13abc6

diff --git a/folly/Makefile.am b/folly/Makefile.am
index 569879db823d16b66c565ba341f3bd38fa9c6198..f46b13ad25f9e3175c1a9d3dd288fc4636957c51 100644 (file)
--- a/folly/Makefile.am
+++ b/folly/Makefile.am
@@ -268,6 +268,7 @@ nobase_follyinclude_HEADERS = \
        portability/Environment.h \
        portability/GFlags.h \
        portability/Syscall.h \
+       portability/SysTime.h \
        portability/SysUio.h \
        Preprocessor.h \
        ProducerConsumerQueue.h \
@@ -393,6 +394,7 @@ libfolly_la_SOURCES = \
        MacAddress.cpp \
        MemoryMapping.cpp \
        portability/Environment.cpp \
+       portability/SysTime.cpp \
        Random.cpp \
        SafeAssert.cpp \
        SharedMutex.cpp \

diff --git a/folly/portability/SysTime.cpp b/folly/portability/SysTime.cpp
new file mode 100755 (executable)
index 0000000..9b46b71
--- /dev/null
+++ b/folly/portability/SysTime.cpp
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2016 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <folly/portability/SysTime.h>
+
+#ifdef _WIN32
+#include <cstdint>
+#include <Windows.h>
+
+extern "C" int gettimeofday(timeval* tv, timezone*) {
+  constexpr auto posixWinFtOffset = 116444736000000000ULL;
+
+  if (tv) {
+    FILETIME ft;
+    GetSystemTimeAsFileTime(&ft);
+    uint64_t ns = *(uint64_t*)&ft;
+    tv->tv_usec = (long)((ns / 10ULL) % 1000000ULL);
+    tv->tv_sec = (long)((ns - posixWinFtOffset) / 10000000ULL);
+  }
+
+  return 0;
+}
+#endif

diff --git a/folly/portability/SysTime.h b/folly/portability/SysTime.h
new file mode 100755 (executable)
index 0000000..56b572f
--- /dev/null
+++ b/folly/portability/SysTime.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2016 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#ifndef _WIN32
+#include <sys/time.h>
+#else
+// Someone decided this was a good place to define timeval.....
+#include <WinSock2.h>
+struct timezone {
+  int tz_minuteswest;
+  int tz_dsttime;
+};
+
+extern "C" int gettimeofday(timeval* tv, timezone*);
+#endif