Cloning a bunch of stuff from the native_client repository at r6528

ppapi/native_client/tests/ppapi_browser/ppb_file_io/common.cc

Index: ppapi/native_client/tests/ppapi_browser/ppb_file_io/common.cc
===================================================================
--- ppapi/native_client/tests/ppapi_browser/ppb_file_io/common.cc	(revision 0)
+++ ppapi/native_client/tests/ppapi_browser/ppb_file_io/common.cc	(revision 0)
@@ -0,0 +1,183 @@
+// Copyright (c) 2011 The Native Client Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "native_client/tests/ppapi_browser/ppb_file_io/common.h"
+
+#include <string.h>
+#include <string>
+
+#include "native_client/src/shared/platform/nacl_check.h"
+#include "native_client/src/third_party/ppapi/c/pp_errors.h"
+#include "native_client/src/third_party/ppapi/c/ppb_core.h"
+#include "native_client/src/third_party/ppapi/c/ppb_file_io.h"
+#include "native_client/src/third_party/ppapi/c/ppb_file_ref.h"
+#include "native_client/src/third_party/ppapi/c/ppb_file_system.h"
+#include "native_client/src/third_party/ppapi/c/ppb_messaging.h"
+#include "native_client/src/third_party/ppapi/c/ppb_url_loader.h"
+#include "native_client/src/third_party/ppapi/c/ppb_var.h"
+#include "native_client/tests/ppapi_test_lib/get_browser_interface.h"
+#include "native_client/tests/ppapi_test_lib/test_interface.h"
+
+namespace common {
+
+const char* kTestData =
+    "Everywhere is within walking distance if you have the time";
+
+void InitFileInfo(PP_FileSystemType system_type, PP_FileInfo* file_info) {
+  memset(file_info, 0, sizeof(PP_FileInfo));
+  file_info->system_type = system_type;
+  file_info->type = PP_FILETYPE_REGULAR;
+  file_info->last_access_time = 200;  // dummy value
+  file_info->last_modified_time = 100;  // something less than last access time
+}
+
+BoundPPAPIFunc OpenFileForTest::GetCompletionCallbackInitiatingPPAPIFunction(
+    TestCallbackData* callback_data) {
+  return std::tr1::bind(PPBFileIO()->Open,
+                        callback_data->existing_file_io,
+                        callback_data->existing_file_ref,
+                        PP_FILEOPENFLAG_READ | PP_FILEOPENFLAG_WRITE,
+                        std::tr1::placeholders::_1);
+}
+
+void FileIOTester::AddSequenceElement(TestSequenceElement* element) {
+  test_sequence_.push_back(element);
+}
+
+void FileIOTester::Run() {
+  if (test_sequence_.empty())
+    return;
+
+  PP_Resource file_system = PPBFileSystem()->Create(pp_instance(),
+                                                    file_info_.system_type);
+  EXPECT(file_system != kInvalidResource);
+
+  TestCallbackData* callback_data = new TestCallbackData(file_system,
+                                                         file_info_,
+                                                         test_sequence_);
+
+  int32_t pp_error = PPBFileSystem()->Open(
+      callback_data->file_system,
+      1024,
+      MakeTestableCompletionCallback(
+          "OpenFileSystemForSetupCallback",
+          OpenFileSystemForSetupCallback,
+          callback_data));
+  EXPECT(pp_error == PP_OK_COMPLETIONPENDING);
+}
+
+void FileIOTester::FlushFileForSetupCallback(void* data, int32_t result) {
+  // This callback should be preceded by a write operation.
+  EXPECT(result >= PP_OK);
+
+  TestCallbackData* callback_data = reinterpret_cast<TestCallbackData*>(data);
+  PP_FileInfo file_info = callback_data->file_info;
+  int32_t pp_error = PPBFileIO()->Touch(callback_data->existing_file_io,
+                                        file_info.last_access_time,
+                                        file_info.last_modified_time,
+                                        MakeTestableCompletionCallback(
+                                            "TouchFileForSetupCallback",
+                                            TouchFileForSetupCallback,
+                                            callback_data));
+  EXPECT(pp_error == PP_OK_COMPLETIONPENDING);
+}
+
+// This is the first callback in the chain of callbacks.  The first several in
+// the chain are initialization for the tests that come later in the chain.
+void FileIOTester::OpenFileSystemForSetupCallback(void* data, int32_t result) {
+  EXPECT(result == PP_OK);
+
+  // Need to retrieve file system from the data in order to create file ref
+  TestCallbackData* callback_data = reinterpret_cast<TestCallbackData*>(data);
+  const PP_Resource file_system = callback_data->file_system;
+  // Create file ref for non-existing file
+  callback_data->non_existing_file_ref = PPBFileRef()->Create(
+      file_system,
+      "/non_existing_file");
+  EXPECT(callback_data->non_existing_file_ref != kInvalidResource);
+
+  // Create file io for non-existing file
+  callback_data->non_existing_file_io = PPBFileIO()->Create(pp_instance());
+  EXPECT(callback_data->non_existing_file_io != kInvalidResource);
+
+  // Create file ref for existing file
+  callback_data->existing_file_ref = PPBFileRef()->Create(file_system,
+                                                          "/existing_file");
+  EXPECT(callback_data->existing_file_ref != kInvalidResource);
+
+  // Create file io for existing file
+  callback_data->existing_file_io = PPBFileIO()->Create(pp_instance());
+  EXPECT(callback_data->existing_file_io != kInvalidResource);
+
+  const PP_FileInfo& file_info = callback_data->file_info;
+  if (file_info.type == PP_FILETYPE_REGULAR) {
+    int32_t pp_error = PPBFileIO()->Open(callback_data->existing_file_io,
+                                         callback_data->existing_file_ref,
+                                         PP_FILEOPENFLAG_TRUNCATE |
+                                         PP_FILEOPENFLAG_CREATE |
+                                         PP_FILEOPENFLAG_WRITE,
+                                         MakeTestableCompletionCallback(
+                                             "OpenFileForSetupCallback",
+                                             OpenFileForSetupCallback,
+                                             callback_data));
+    EXPECT(pp_error == PP_OK_COMPLETIONPENDING);
+  } else if (file_info.type == PP_FILETYPE_DIRECTORY) {
+    // TODO(sanga): Log a message indicating directories are not yet supported
+    // in these tests.
+  }
+}
+
+void FileIOTester::OpenFileForSetupCallback(void* data, int32_t result) {
+  EXPECT(result == PP_OK);
+
+  TestCallbackData* callback_data = reinterpret_cast<TestCallbackData*>(data);
+  PP_FileInfo file_info = callback_data->file_info;
+  int32_t pp_error = PPBFileIO()->Write(callback_data->existing_file_io,
+                                        0,  // no offset
+                                        kTestData,
+                                        strlen(kTestData),
+                                        MakeTestableCompletionCallback(
+                                            "WriteFileForSetupCallback",
+                                            WriteFileForSetupCallback,
+                                            callback_data));
+    EXPECT(pp_error == PP_OK_COMPLETIONPENDING);
+}
+
+void FileIOTester::StartTestSequence(TestCallbackData* callback_data) {
+  if (!callback_data->test_sequence.empty()) {
+    TestSequenceElement* first_test_element =
+        callback_data->test_sequence.front();
+    PP_CompletionCallback callback = MakeTestableCompletionCallback(
+        first_test_element->name(),
+        TestSequenceElement::TestSequenceElementForwardingCallback,
+        callback_data);
+    PPBCore()->CallOnMainThread(0,  // no delay
+                                callback, PP_OK);
+  } else {
+    TestSequenceElement::CleanupResources(callback_data);
+  }
+}
+
+// Assign testing file properties with data from given callback data.
+void FileIOTester::TouchFileForSetupCallback(void* data, int32_t result) {
+  EXPECT(result == PP_OK);
+
+  TestCallbackData* callback_data = reinterpret_cast<TestCallbackData*>(data);
+  PPBFileIO()->Close(callback_data->existing_file_io);
+  StartTestSequence(callback_data);
+}
+
+void FileIOTester::WriteFileForSetupCallback(void* data, int32_t result) {
+  EXPECT(result >= PP_OK);
+
+  TestCallbackData* callback_data = reinterpret_cast<TestCallbackData*>(data);
+  int32_t pp_error = PPBFileIO()->Flush(callback_data->existing_file_io,
+                                        MakeTestableCompletionCallback(
+                                            "FlushFileForSetupCallback",
+                                            FlushFileForSetupCallback,
+                                            callback_data));
+  EXPECT(pp_error == PP_OK_COMPLETIONPENDING);
+}
+
+}  // namespace common