| /* Copyright 2018 The TensorFlow Authors. All Rights Reserved. |
| |
| 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 "tensorflow/c/env.h" |
| |
| #include "tensorflow/c/c_api.h" |
| #include "tensorflow/core/lib/io/path.h" |
| #include "tensorflow/core/platform/mutex.h" |
| #include "tensorflow/core/platform/test.h" |
| #include "tensorflow/core/platform/types.h" |
| |
| #define ASSERT_TF_OK(x) ASSERT_EQ(TF_OK, TF_GetCode(x)) |
| |
| TEST(TestEnv, TestDirHandling) { |
| TF_StringStream* tempdirs = TF_GetLocalTempDirectories(); |
| const char* tempdir; |
| bool found = false; |
| while (TF_StringStreamNext(tempdirs, &tempdir)) { |
| found = true; |
| |
| TF_Status* s = TF_NewStatus(); |
| |
| ::tensorflow::string dirpath = |
| ::tensorflow::io::JoinPath(tempdir, "somedir"); |
| TF_CreateDir(dirpath.c_str(), s); |
| ASSERT_TF_OK(s) << "TF_CreateDir failed for " << dirpath << ": " |
| << TF_Message(s); |
| |
| ::tensorflow::string filepath = |
| ::tensorflow::io::JoinPath(dirpath, "somefile.txt"); |
| TF_WritableFileHandle* handle; |
| TF_NewWritableFile(filepath.c_str(), &handle, s); |
| ASSERT_TF_OK(s) << "NewWritableFile failed for " << filepath << ": " |
| << TF_Message(s); |
| |
| const char* data = "Hello, world!\n"; |
| TF_AppendWritableFile(handle, data, strlen(data), s); |
| ASSERT_TF_OK(s) << "TF_AppendWritableFile failed to append data to file at " |
| << filepath << ": " << TF_Message(s); |
| |
| TF_CloseWritableFile(handle, s); |
| ASSERT_TF_OK(s) << "TF_CloseWritableFile failed to close handle to " |
| << filepath << ": " << TF_Message(s); |
| |
| TF_StringStream* children = TF_GetChildren(dirpath.c_str(), s); |
| ASSERT_TF_OK(s) << "TF_GetChildren failed for " << dirpath; |
| const char* childpath; |
| ASSERT_TRUE(TF_StringStreamNext(children, &childpath)); |
| ASSERT_EQ(::tensorflow::string(childpath), "somefile.txt"); |
| // There should only be one file in this directory. |
| ASSERT_FALSE(TF_StringStreamNext(children, &childpath)); |
| ASSERT_EQ(childpath, nullptr); |
| TF_StringStreamDone(children); |
| |
| TF_FileStatistics stats; |
| TF_FileStat(filepath.c_str(), &stats, s); |
| ASSERT_EQ(stats.length, strlen(data)); |
| ASSERT_FALSE(stats.is_directory); |
| ASSERT_GT(stats.mtime_nsec, 0); |
| |
| // Trying to delete a non-empty directory should fail. |
| TF_DeleteDir(dirpath.c_str(), s); |
| ASSERT_NE(TF_OK, TF_GetCode(s)) |
| << "TF_DeleteDir unexpectedly succeeded with a non-empty directory " |
| << dirpath; |
| |
| TF_DeleteFile(filepath.c_str(), s); |
| ASSERT_TF_OK(s) << "TF_DeleteFile failed for " << filepath << ": " |
| << TF_Message(s); |
| |
| // Now deleting the directory should work. |
| TF_DeleteDir(dirpath.c_str(), s); |
| ASSERT_TF_OK(s) << "TF_DeleteDir failed for " << dirpath << ": " |
| << TF_Message(s); |
| |
| TF_DeleteStatus(s); |
| break; |
| } |
| |
| ASSERT_TRUE(found) << "expected at least one temp dir"; |
| |
| TF_StringStreamDone(tempdirs); |
| } |
| |
| TEST(TestEnv, TestTimeFunctions) { |
| ASSERT_GE(TF_NowSeconds(), 946684800); // Midnight Jan 1, 2000 |
| ASSERT_GE(TF_NowMicros(), 946684800 * 1e6); |
| ASSERT_GE(TF_NowNanos(), 946684800 * 1e9); |
| } |
| |
| namespace { |
| |
| struct SomeThreadData { |
| ::tensorflow::mutex mu; |
| bool did_work = false; |
| }; |
| |
| void SomeThreadFunc(void* data) { |
| auto* real_data = static_cast<SomeThreadData*>(data); |
| ::tensorflow::mutex_lock l(real_data->mu); |
| real_data->did_work = true; |
| } |
| |
| } // namespace |
| |
| TEST(TestEnv, TestThreads) { |
| TF_ThreadOptions options; |
| TF_DefaultThreadOptions(&options); |
| SomeThreadData data; |
| TF_Thread* thread = |
| TF_StartThread(&options, "SomeThreadName", &SomeThreadFunc, &data); |
| TF_JoinThread(thread); |
| ::tensorflow::mutex_lock l(data.mu); |
| ASSERT_TRUE(data.did_work); |
| } |