asiva@google.com
a576fec3c0
be setup automatically or not when a native function is invoked. This would allow the embedder to treat some native functions as leaf functions whose invocation can be very light. R=hausner@google.com, zra@google.com Review URL: https://codereview.chromium.org//117723002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@31286 260f80e4-7a28-3924-810f-c04153c831b5
128 lines
6.3 KiB
C++
128 lines
6.3 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "include/dart_api.h"
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#include "platform/assert.h"
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#include "bin/builtin.h"
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#include "bin/dartutils.h"
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#include "bin/io_natives.h"
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#include "bin/platform.h"
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namespace dart {
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namespace bin {
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// Lists the native functions implementing basic functionality in
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// standalone dart, such as printing, file I/O, and platform information.
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// Advanced I/O classes like sockets and process management are implemented
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// using functions listed in io_natives.cc.
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#define BUILTIN_NATIVE_LIST(V) \
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V(Directory_Exists, 1) \
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V(Directory_Create, 1) \
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V(Directory_Current, 0) \
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V(Directory_SetCurrent, 1) \
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V(Directory_SystemTemp, 0) \
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V(Directory_CreateTemp, 1) \
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V(Directory_Delete, 2) \
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V(Directory_Rename, 2) \
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V(Directory_List, 3) \
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V(File_Open, 2) \
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V(File_Exists, 1) \
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V(File_Close, 1) \
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V(File_ReadByte, 1) \
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V(File_WriteByte, 2) \
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V(File_Read, 2) \
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V(File_ReadInto, 4) \
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V(File_WriteFrom, 4) \
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V(File_Position, 1) \
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V(File_SetPosition, 2) \
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V(File_Truncate, 2) \
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V(File_Length, 1) \
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V(File_LengthFromPath, 1) \
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V(File_Stat, 1) \
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V(File_LastModified, 1) \
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V(File_Flush, 1) \
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V(File_Create, 1) \
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V(File_CreateLink, 2) \
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V(File_LinkTarget, 1) \
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V(File_Delete, 1) \
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V(File_DeleteLink, 1) \
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V(File_Rename, 2) \
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V(File_Copy, 2) \
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V(File_RenameLink, 2) \
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V(File_ResolveSymbolicLinks, 1) \
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V(File_OpenStdio, 1) \
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V(File_GetStdioHandleType, 1) \
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V(File_GetType, 2) \
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V(File_AreIdentical, 2) \
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V(FileSystemWatcher_CloseWatcher, 1) \
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V(FileSystemWatcher_GetSocketId, 2) \
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V(FileSystemWatcher_InitWatcher, 0) \
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V(FileSystemWatcher_IsSupported, 0) \
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V(FileSystemWatcher_ReadEvents, 2) \
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V(FileSystemWatcher_UnwatchPath, 2) \
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V(FileSystemWatcher_WatchPath, 4) \
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V(Logger_PrintString, 1)
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BUILTIN_NATIVE_LIST(DECLARE_FUNCTION);
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static struct NativeEntries {
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const char* name_;
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Dart_NativeFunction function_;
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int argument_count_;
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} BuiltinEntries[] = {
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BUILTIN_NATIVE_LIST(REGISTER_FUNCTION)
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};
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/**
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* Looks up native functions in both libdart_builtin and libdart_io.
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*/
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Dart_NativeFunction Builtin::NativeLookup(Dart_Handle name,
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int argument_count,
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bool* auto_setup_scope) {
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const char* function_name = NULL;
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Dart_Handle result = Dart_StringToCString(name, &function_name);
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DART_CHECK_VALID(result);
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ASSERT(function_name != NULL);
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ASSERT(auto_setup_scope != NULL);
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*auto_setup_scope = true;
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int num_entries = sizeof(BuiltinEntries) / sizeof(struct NativeEntries);
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for (int i = 0; i < num_entries; i++) {
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struct NativeEntries* entry = &(BuiltinEntries[i]);
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if (!strcmp(function_name, entry->name_) &&
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(entry->argument_count_ == argument_count)) {
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return reinterpret_cast<Dart_NativeFunction>(entry->function_);
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}
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}
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return IONativeLookup(name, argument_count, auto_setup_scope);
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}
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// Implementation of native functions which are used for some
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// test/debug functionality in standalone dart mode.
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void FUNCTION_NAME(Logger_PrintString)(Dart_NativeArguments args) {
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intptr_t length = 0;
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uint8_t* chars = NULL;
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Dart_Handle str = Dart_GetNativeArgument(args, 0);
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Dart_Handle result = Dart_StringToUTF8(str, &chars, &length);
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if (Dart_IsError(result)) {
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// TODO(turnidge): Consider propagating some errors here. What if
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// an isolate gets interrupted by the embedder in the middle of
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// Dart_StringToUTF8? We need to make sure not to swallow the
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// interrupt.
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Platform::PrintBlocking(stdout, "%s\n", Dart_GetError(result));
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} else {
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Platform::PrintBlocking(stdout, "%.*s\n", static_cast<int>(length), chars);
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}
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}
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} // namespace bin
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} // namespace dart
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