[dart:io] Namespaces for file IO

runtime/bin/snapshot_utils.cc

 // Copyright (c) 2017, 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.
 
 #include "bin/snapshot_utils.h"
 
 #include "bin/dartutils.h"
 #include "bin/error_exit.h"
 #include "bin/extensions.h"
 #include "bin/file.h"
@@ skipping 54 matching lines @@
   }
 
  private:
   MappedMemory* vm_data_mapping_;
   MappedMemory* vm_instructions_mapping_;
   MappedMemory* isolate_data_mapping_;
   MappedMemory* isolate_instructions_mapping_;
 };
 
 static AppSnapshot* TryReadAppSnapshotBlobs(const char* script_name) {
-  File* file = File::Open(script_name, File::kRead);
+  File* file = File::Open(NULL, script_name, File::kRead);
   if (file == NULL) {
     return NULL;
   }
   if (file->Length() < kAppSnapshotHeaderSize) {
     file->Release();
     return NULL;
   }
   int64_t header[5];
   ASSERT(sizeof(header) == kAppSnapshotHeaderSize);
   if (!file->ReadFully(&header, kAppSnapshotHeaderSize)) {
@@ skipping 133 matching lines @@
     FATAL1("Failed to resolve symbol '%s'\n",
            kIsolateSnapshotInstructionsSymbolName);
   }
 
   return new DylibAppSnapshot(library, vm_data_buffer, vm_instructions_buffer,
                               isolate_data_buffer, isolate_instructions_buffer);
 }
 #endif  // defined(DART_PRECOMPILED_RUNTIME)
 
 AppSnapshot* Snapshot::TryReadAppSnapshot(const char* script_name) {
-  if (File::GetType(script_name, true) != File::kIsFile) {
+  if (File::GetType(NULL, script_name, true) != File::kIsFile) {
     // If 'script_name' refers to a pipe, don't read to check for an app
     // snapshot since we cannot rewind if it isn't (and couldn't mmap it in
     // anyway if it was).
     return NULL;
   }
   AppSnapshot* snapshot = TryReadAppSnapshotBlobs(script_name);
   if (snapshot != NULL) {
     return snapshot;
   }
 #if defined(DART_PRECOMPILED_RUNTIME)
   // For testing AOT with the standalone embedder, we also support loading
   // from a dynamic library to simulate what happens on iOS.
   snapshot = TryReadAppSnapshotDynamicLibrary(script_name);
   if (snapshot != NULL) {
     return snapshot;
   }
 #endif  //  defined(DART_PRECOMPILED_RUNTIME)
   return NULL;
 }
 
 static void WriteSnapshotFile(const char* filename,
                               bool write_magic_number,
                               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) {
     ErrorExit(kErrorExitCode, "Unable to open file %s for writing snapshot\n",
               filename);
   }
 
   if (write_magic_number) {
     // Write the magic number to indicate file is a script snapshot.
     DartUtils::WriteSnapshotMagicNumber(file);
   }
 
@@ skipping 10 matching lines @@
 
 static void WriteAppSnapshot(const char* filename,
                              uint8_t* vm_data_buffer,
                              intptr_t vm_data_size,
                              uint8_t* vm_instructions_buffer,
                              intptr_t vm_instructions_size,
                              uint8_t* isolate_data_buffer,
                              intptr_t isolate_data_size,
                              uint8_t* isolate_instructions_buffer,
                              intptr_t isolate_instructions_size) {
-  File* file = File::Open(filename, File::kWriteTruncate);
+  File* file = File::Open(NULL, filename, File::kWriteTruncate);
   if (file == NULL) {
     ErrorExit(kErrorExitCode, "Unable to write snapshot file '%s'\n", filename);
   }
 
   file->WriteFully(&kAppSnapshotMagicNumber, sizeof(kAppSnapshotMagicNumber));
   WriteInt64(file, vm_data_size);
   WriteInt64(file, vm_instructions_size);
   WriteInt64(file, isolate_data_size);
   WriteInt64(file, isolate_instructions_size);
   ASSERT(file->Position() == kAppSnapshotHeaderSize);
@@ skipping 100 matching lines @@
   Dart_Handle result =
       Dart_CreateAppAOTSnapshotAsAssembly(&assembly_buffer, &assembly_size);
   if (Dart_IsError(result)) {
     ErrorExit(kErrorExitCode, "%s\n", Dart_GetError(result));
   }
   WriteSnapshotFile(snapshot_filename, false, assembly_buffer, assembly_size);
 }
 
 }  // namespace bin
 }  // namespace dart