PPAPI: Force async callback invocation option.

ppapi/tests/test_url_loader.cc

 // Copyright (c) 2011 The Chromium 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 "ppapi/tests/test_url_loader.h"
 
 #include <stdio.h>
 #include <string.h>
 #include <string>
 
@@ skipping 33 matching lines @@
   RUN_TEST(BasicGET);
   RUN_TEST(BasicPOST);
   RUN_TEST(CompoundBodyPOST);
   RUN_TEST(EmptyDataPOST);
   RUN_TEST(BinaryDataPOST);
   RUN_TEST(CustomRequestHeader);
   RUN_TEST(IgnoresBogusContentLength);
   RUN_TEST(SameOriginRestriction);
   RUN_TEST(CrossOriginRequest);
   RUN_TEST(StreamToFile);
+  RUN_TEST(StreamToFileForceAsync);
   RUN_TEST(AuditURLRedirect);
   RUN_TEST(AbortCalls);
 }
 
 std::string TestURLLoader::ReadEntireFile(pp::FileIO_Dev* file_io,
-                                          std::string* data) {
-  TestCompletionCallback callback(instance_->pp_instance());
+                                          std::string* data,
+                                          bool force_async) {
+  TestCompletionCallback callback(instance_->pp_instance(), force_async);
   char buf[256];
   int64_t offset = 0;
 
   for (;;) {
     int32_t rv = file_io->Read(offset, buf, sizeof(buf), callback);
+    if (force_async && rv != PP_OK_COMPLETIONPENDING)
+      return ReportError("FileIO::Read", rv);
     if (rv == PP_OK_COMPLETIONPENDING)
       rv = callback.WaitForResult();
     if (rv < 0)
       return ReportError("FileIO::Read", rv);
     if (rv == 0)
       break;
     offset += rv;
     data->append(buf, rv);
   }
 
@@ skipping 107 matching lines @@
 std::string TestURLLoader::TestIgnoresBogusContentLength() {
   pp::URLRequestInfo request;
   request.SetURL("/echo");
   request.SetMethod("POST");
   request.SetHeaders("Content-Length: 400");
   std::string postdata("postdata");
   request.AppendDataToBody(postdata.data(), postdata.length());
   return LoadAndCompareBody(request, postdata);
 }
 
-std::string TestURLLoader::TestStreamToFile() {
+std::string TestURLLoader::StreamToFile(bool force_async) {
   pp::URLRequestInfo request;
   request.SetURL("test_url_loader_data/hello.txt");
   request.SetStreamToFile(true);
-
-  TestCompletionCallback callback(instance_->pp_instance());
+  TestCompletionCallback callback(instance_->pp_instance(), force_async);
 
   pp::URLLoader loader(*instance_);
   int32_t rv = loader.Open(request, callback);
+  if (force_async && rv != PP_OK_COMPLETIONPENDING)
+    // Why does triggering this crash the browser when testing manually?
+    return ReportError("URLLoader::Open", rv);
   if (rv == PP_OK_COMPLETIONPENDING)
     rv = callback.WaitForResult();
   if (rv != PP_OK)
     return ReportError("URLLoader::Open", rv);
 
   pp::URLResponseInfo response_info(loader.GetResponseInfo());
   if (response_info.is_null())
     return "URLLoader::GetResponseInfo returned null";
   int32_t status_code = response_info.GetStatusCode();
   if (status_code != 200)
     return "Unexpected HTTP status code";
 
   pp::FileRef_Dev body(response_info.GetBodyAsFileRef());
   if (body.is_null())
     return "URLResponseInfo::GetBody returned null";
 
   rv = loader.FinishStreamingToFile(callback);
+  if (force_async && rv != PP_OK_COMPLETIONPENDING)
+    return ReportError("URLLoader::FinishStreamingToFile", rv);
   if (rv == PP_OK_COMPLETIONPENDING)
     rv = callback.WaitForResult();
   if (rv != PP_OK)
     return ReportError("URLLoader::FinishStreamingToFile", rv);
 
-
   pp::FileIO_Dev reader;
   rv = reader.Open(body, PP_FILEOPENFLAG_READ, callback);
+  if (force_async && rv != PP_OK_COMPLETIONPENDING)
+    return ReportError("FileIO::Open", rv);
   if (rv == PP_OK_COMPLETIONPENDING)
     rv = callback.WaitForResult();
   if (rv != PP_OK)
     return ReportError("FileIO::Open", rv);
 
   std::string data;
-  std::string error = ReadEntireFile(&reader, &data);
+  std::string error = ReadEntireFile(&reader, &data, force_async);
   if (!error.empty())
     return error;
 
   std::string expected_body = "hello\n";
   if (data.size() != expected_body.size())
     return "ReadEntireFile returned unexpected content length";
   if (data != expected_body)
     return "ReadEntireFile returned unexpected content";
 
   int32_t file_descriptor = file_io_trusted_interface_->GetOSFileDescriptor(
       reader.pp_resource());
   if (file_descriptor < 0)
     return "FileIO::GetOSFileDescriptor() returned a bad file descriptor.";
 
   PASS();
 }
 
+std::string TestURLLoader::TestStreamToFile() {
+  return StreamToFile(false);
+}
+
+std::string TestURLLoader::TestStreamToFileForceAsync() {
+  return StreamToFile(true);
+}
+
 std::string TestURLLoader::TestSameOriginRestriction() {
   pp::URLRequestInfo request;
   request.SetURL("http://www.google.com/");
 
   TestCompletionCallback callback(instance_->pp_instance());
 
   pp::URLLoader loader(*instance_);
   int32_t rv = loader.Open(request, callback);
   if (rv == PP_OK_COMPLETIONPENDING)
     rv = callback.WaitForResult();
@@ skipping 114 matching lines @@
 
   // TODO(viettrungluu): More abort tests (but add basic tests first).
   // Also test that Close() aborts properly. crbug.com/69457
 
   PASS();
 }
 
 // TODO(viettrungluu): Add tests for FollowRedirect,
 // Get{Upload,Download}Progress, Close (including abort tests if applicable).
 // TODO(darin): Add a test for GrantUniversalAccess.