tensor module windows support (#12934)

* tensor windows support

* "fix ci"

* "remove utils"

Author: dzhwinter

paddle/fluid/framework/lod_tensor.cc

@@ -25,8 +25,10 @@ limitations under the License. */
 #include "paddle/fluid/memory/memcpy.h"
 #include "paddle/fluid/memory/memory.h"
 
+#if !defined(_WIN32)
 #include "paddle/fluid/recordio/scanner.h"
 #include "paddle/fluid/recordio/writer.h"
+#endif  // _WIN32
 
 namespace paddle {
 namespace framework {
@@ -300,6 +302,7 @@ void DeserializeFromStream(std::istream &is, LoDTensor *tensor,
   TensorFromStream(is, static_cast<Tensor *>(tensor), dev_ctx);
 }
 
+#if !defined(_WIN32)
 void WriteToRecordIO(recordio::Writer *writer,
                      const std::vector<LoDTensor> &tensor,
                      const platform::DeviceContext &dev_ctx) {
@@ -329,7 +332,19 @@ bool ReadFromRecordIO(recordio::Scanner *scanner,
 
   return true;
 }
-
+#else
+class Writer {};
+class Scanner {};
+void WriteToRecordIO(recordio::Writer *writer,
+                     const std::vector<LoDTensor> &tensor,
+                     const platform::DeviceContext &dev_ctx) {}
+bool ReadFromRecordIO(recordio::Scanner *scanner,
+                      const platform::DeviceContext &dev_ctx,
+                      std::vector<LoDTensor> *result_ptr) {
+  PADDLE_ENFORCE("windows didn't supported recordio!.");
+  return true;
+}
+#endif  // _WIN32
 std::vector<LoDTensor> LoDTensor::SplitLoDTensor(
     const std::vector<platform::Place> places) const {
   check_memory_size();

paddle/fluid/framework/lod_tensor_test.cc

@@ -274,6 +274,7 @@ TEST(LoD, ConvertToOffsetBasedLoD) {
   EXPECT_EQ(offset_lod, expected);
 }
 
+#if !defined(_WIN32)
 template <typename T>
 static void TestRecordIO() {
   LoDTensor tensor;
@@ -320,6 +321,7 @@ TEST(LoDTensor, RecordIO) {
   TestRecordIO<float>();
   TestRecordIO<double>();
 }
+#endif  // !defined(_WIN32)
 
 }  // namespace framework
 }  // namespace paddle

paddle/fluid/framework/rw_lock.h

@@ -14,13 +14,16 @@ limitations under the License. */
 
 #pragma once
 
+#if !defined(_WIN32)
 #include <pthread.h>
+#endif  // !_WIN32
 
 #include "paddle/fluid/platform/enforce.h"
 
 namespace paddle {
 namespace framework {
 
+#if !defined(_WIN32)
 struct RWLock {
   RWLock() { pthread_rwlock_init(&lock_, nullptr); }
 
@@ -43,6 +46,15 @@ struct RWLock {
  private:
   pthread_rwlock_t lock_;
 };
+#else
+// https://stackoverflow.com/questions/7125250/making-pthread-rwlock-wrlock-recursive
+// In windows, rw_lock seems like a hack. Use empty object and do nothing.
+struct RWLock {
+  void RDLock() {}
+  void WRLock() {}
+  void UNLock() {}
+};
+#endif
 
 }  // namespace framework
 }  // namespace paddle