[dart:io] Namespaces for file IO

runtime/bin/gen_snapshot.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // Generate a snapshot file after loading all the scripts specified on the
 // command line.
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ skipping 428 matching lines @@
         "Obfuscation can only be enabled when building AOT snapshot.\n\n");
     return -1;
   }
 
   return 0;
 }
 
 static void WriteFile(const char* filename,
                       const uint8_t* buffer,
                       const intptr_t size) {
-  File* file = File::Open(filename, File::kWriteTruncate);
+  File* file = File::Open(NULL, filename, File::kWriteTruncate);
   if (file == NULL) {
     Log::PrintErr("Error: Unable to write snapshot file: %s\n\n", filename);
     Dart_ExitScope();
     Dart_ShutdownIsolate();
     exit(kErrorExitCode);
   }
   if (!file->WriteFully(buffer, size)) {
     Log::PrintErr("Error: Unable to write snapshot file: %s\n\n", filename);
     Dart_ExitScope();
     Dart_ShutdownIsolate();
     exit(kErrorExitCode);
   }
   file->Release();
 }
 
 static void ReadFile(const char* filename, uint8_t** buffer, intptr_t* size) {
-  File* file = File::Open(filename, File::kRead);
+  File* file = File::Open(NULL, filename, File::kRead);
   if (file == NULL) {
     Log::PrintErr("Unable to open file %s\n", filename);
     Dart_ExitScope();
     Dart_ShutdownIsolate();
     exit(kErrorExitCode);
   }
   *size = file->Length();
   *buffer = reinterpret_cast<uint8_t*>(malloc(*size));
   if (!file->ReadFully(*buffer, *size)) {
     Log::PrintErr("Unable to read file %s\n", filename);
@@ skipping 128 matching lines @@
 }
 
 // Generates a depfile like gcc -M -MF. Must be consumable by Ninja.
 class DependenciesFileWriter : public ValueObject {
  public:
   DependenciesFileWriter() : dependencies_(NULL), file_(NULL), success_(true) {}
 
   void WriteDependencies(MallocGrowableArray<char*>* dependencies) {
     dependencies_ = dependencies;
 
-    file_ = File::Open(dependencies_filename, File::kWriteTruncate);
+    file_ = File::Open(NULL, dependencies_filename, File::kWriteTruncate);
     if (file_ == NULL) {
       Log::PrintErr("Error: Unable to open dependencies file: %s\n\n",
                     dependencies_filename);
       exit(kErrorExitCode);
     }
 
     // Write dependencies for one of the output files.
     // TODO(https://github.com/ninja-build/ninja/issues/1184): Do this for all
     // output files.
     switch (snapshot_kind) {
@@ skipping 856 matching lines @@
     return NULL;
   }
   Dart_ExitScope();
   Dart_ExitIsolate();
   return isolate;
 }
 
 static MappedMemory* MapFile(const char* filename,
                              File::MapType type,
                              const uint8_t** buffer) {
-  File* file = File::Open(filename, File::kRead);
+  File* file = File::Open(NULL, filename, File::kRead);
   if (file == NULL) {
     Log::PrintErr("Failed to open: %s\n", filename);
     exit(kErrorExitCode);
   }
   intptr_t length = file->Length();
   if (length == 0) {
     // Can't map an empty file.
     *buffer = NULL;
     return NULL;
   }
@@ skipping 286 matching lines @@
   delete mapped_isolate_snapshot_instructions;
   return 0;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 int main(int argc, char** argv) {
   return dart::bin::main(argc, argv);
 }