128 lines
4.2 KiB
C++
128 lines
4.2 KiB
C++
/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#include "tensorflow/c/env.h"
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#include "tensorflow/c/c_api.h"
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#include "tensorflow/core/lib/io/path.h"
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#include "tensorflow/core/platform/mutex.h"
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#include "tensorflow/core/platform/test.h"
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#include "tensorflow/core/platform/types.h"
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#define ASSERT_TF_OK(x) ASSERT_EQ(TF_OK, TF_GetCode(x))
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TEST(TestEnv, TestDirHandling) {
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TF_StringStream* tempdirs = TF_GetLocalTempDirectories();
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const char* tempdir;
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bool found = false;
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while (TF_StringStreamNext(tempdirs, &tempdir)) {
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found = true;
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TF_Status* s = TF_NewStatus();
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::tensorflow::string dirpath =
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::tensorflow::io::JoinPath(tempdir, "somedir");
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TF_CreateDir(dirpath.c_str(), s);
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ASSERT_TF_OK(s) << "TF_CreateDir failed for " << dirpath << ": "
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<< TF_Message(s);
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::tensorflow::string filepath =
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::tensorflow::io::JoinPath(dirpath, "somefile.txt");
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TF_WritableFileHandle* handle;
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TF_NewWritableFile(filepath.c_str(), &handle, s);
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ASSERT_TF_OK(s) << "NewWritableFile failed for " << filepath << ": "
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<< TF_Message(s);
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const char* data = "Hello, world!\n";
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TF_AppendWritableFile(handle, data, strlen(data), s);
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ASSERT_TF_OK(s) << "TF_AppendWritableFile failed to append data to file at "
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<< filepath << ": " << TF_Message(s);
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TF_CloseWritableFile(handle, s);
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ASSERT_TF_OK(s) << "TF_CloseWritableFile failed to close handle to "
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<< filepath << ": " << TF_Message(s);
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TF_StringStream* children = TF_GetChildren(dirpath.c_str(), s);
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ASSERT_TF_OK(s) << "TF_GetChildren failed for " << dirpath;
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const char* childpath;
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ASSERT_TRUE(TF_StringStreamNext(children, &childpath));
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ASSERT_EQ(::tensorflow::string(childpath), "somefile.txt");
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// There should only be one file in this directory.
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ASSERT_FALSE(TF_StringStreamNext(children, &childpath));
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ASSERT_EQ(childpath, nullptr);
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TF_StringStreamDone(children);
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TF_FileStatistics stats;
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TF_FileStat(filepath.c_str(), &stats, s);
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ASSERT_EQ(stats.length, strlen(data));
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ASSERT_FALSE(stats.is_directory);
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ASSERT_GT(stats.mtime_nsec, 0);
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// Trying to delete a non-empty directory should fail.
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TF_DeleteDir(dirpath.c_str(), s);
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ASSERT_NE(TF_OK, TF_GetCode(s))
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<< "TF_DeleteDir unexpectedly succeeded with a non-empty directory "
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<< dirpath;
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TF_DeleteFile(filepath.c_str(), s);
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ASSERT_TF_OK(s) << "TF_DeleteFile failed for " << filepath << ": "
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<< TF_Message(s);
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// Now deleting the directory should work.
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TF_DeleteDir(dirpath.c_str(), s);
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ASSERT_TF_OK(s) << "TF_DeleteDir failed for " << dirpath << ": "
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<< TF_Message(s);
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TF_DeleteStatus(s);
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break;
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}
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ASSERT_TRUE(found) << "expected at least one temp dir";
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TF_StringStreamDone(tempdirs);
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}
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TEST(TestEnv, TestTimeFunctions) {
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ASSERT_GE(TF_NowSeconds(), 946684800); // Midnight Jan 1, 2000
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ASSERT_GE(TF_NowMicros(), 946684800 * 1e6);
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ASSERT_GE(TF_NowNanos(), 946684800 * 1e9);
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}
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namespace {
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struct SomeThreadData {
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::tensorflow::mutex mu;
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bool did_work = false;
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};
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void SomeThreadFunc(void* data) {
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auto* real_data = static_cast<SomeThreadData*>(data);
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::tensorflow::mutex_lock l(real_data->mu);
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real_data->did_work = true;
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}
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} // namespace
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TEST(TestEnv, TestThreads) {
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TF_ThreadOptions options;
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TF_DefaultThreadOptions(&options);
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SomeThreadData data;
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TF_Thread* thread =
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TF_StartThread(&options, "SomeThreadName", &SomeThreadFunc, &data);
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TF_JoinThread(thread);
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::tensorflow::mutex_lock l(data.mu);
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ASSERT_TRUE(data.did_work);
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}
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