mirror of
https://github.com/dart-lang/sdk
synced 2024-10-14 11:31:57 +00:00
3f0ea0f50e
Fixes #28350 R=vegorov@google.com Review-Url: https://codereview.chromium.org/2653583002 .
506 lines
16 KiB
C++
506 lines
16 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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#if !defined(DART_IO_DISABLED)
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#include "bin/directory.h"
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#include "bin/dartutils.h"
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#include "bin/log.h"
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#include "include/dart_api.h"
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#include "platform/assert.h"
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namespace dart {
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namespace bin {
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char* Directory::system_temp_path_override_ = NULL;
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void FUNCTION_NAME(Directory_Current)(Dart_NativeArguments args) {
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const char* current = Directory::Current();
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if (current != NULL) {
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Dart_SetReturnValue(args, DartUtils::NewString(current));
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} else {
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Dart_SetReturnValue(args, DartUtils::NewDartOSError());
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}
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}
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void FUNCTION_NAME(Directory_SetCurrent)(Dart_NativeArguments args) {
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int argc = Dart_GetNativeArgumentCount(args);
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Dart_Handle path;
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if (argc == 1) {
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path = Dart_GetNativeArgument(args, 0);
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}
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if ((argc != 1) || !Dart_IsString(path)) {
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Dart_SetReturnValue(args, DartUtils::NewDartArgumentError(NULL));
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} else {
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if (Directory::SetCurrent(DartUtils::GetStringValue(path))) {
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Dart_SetReturnValue(args, Dart_True());
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} else {
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Dart_SetReturnValue(args, DartUtils::NewDartOSError());
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}
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}
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}
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void FUNCTION_NAME(Directory_Exists)(Dart_NativeArguments args) {
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static const int kExists = 1;
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static const int kDoesNotExist = 0;
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Dart_Handle path = Dart_GetNativeArgument(args, 0);
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Directory::ExistsResult result =
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Directory::Exists(DartUtils::GetStringValue(path));
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if (result == Directory::EXISTS) {
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Dart_SetReturnValue(args, Dart_NewInteger(kExists));
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} else if (result == Directory::DOES_NOT_EXIST) {
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Dart_SetReturnValue(args, Dart_NewInteger(kDoesNotExist));
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} else {
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Dart_SetReturnValue(args, DartUtils::NewDartOSError());
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}
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}
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void FUNCTION_NAME(Directory_Create)(Dart_NativeArguments args) {
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Dart_Handle path = Dart_GetNativeArgument(args, 0);
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if (Directory::Create(DartUtils::GetStringValue(path))) {
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Dart_SetReturnValue(args, Dart_True());
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} else {
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Dart_SetReturnValue(args, DartUtils::NewDartOSError());
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}
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}
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void FUNCTION_NAME(Directory_SystemTemp)(Dart_NativeArguments args) {
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const char* result = Directory::SystemTemp();
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Dart_SetReturnValue(args, DartUtils::NewString(result));
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}
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void FUNCTION_NAME(Directory_CreateTemp)(Dart_NativeArguments args) {
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Dart_Handle path = Dart_GetNativeArgument(args, 0);
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if (!Dart_IsString(path)) {
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Dart_SetReturnValue(
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args, DartUtils::NewDartArgumentError(
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"Prefix argument of CreateSystemTempSync is not a String"));
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return;
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}
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const char* result = Directory::CreateTemp(DartUtils::GetStringValue(path));
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if (result != NULL) {
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Dart_SetReturnValue(args, DartUtils::NewString(result));
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} else {
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Dart_SetReturnValue(args, DartUtils::NewDartOSError());
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}
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}
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void FUNCTION_NAME(Directory_Delete)(Dart_NativeArguments args) {
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Dart_Handle path = Dart_GetNativeArgument(args, 0);
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Dart_Handle recursive = Dart_GetNativeArgument(args, 1);
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if (Directory::Delete(DartUtils::GetStringValue(path),
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DartUtils::GetBooleanValue(recursive))) {
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Dart_SetReturnValue(args, Dart_True());
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} else {
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Dart_SetReturnValue(args, DartUtils::NewDartOSError());
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}
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}
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void FUNCTION_NAME(Directory_Rename)(Dart_NativeArguments args) {
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Dart_Handle path = Dart_GetNativeArgument(args, 0);
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Dart_Handle newPath = Dart_GetNativeArgument(args, 1);
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if (Directory::Rename(DartUtils::GetStringValue(path),
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DartUtils::GetStringValue(newPath))) {
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Dart_SetReturnValue(args, Dart_True());
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} else {
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Dart_SetReturnValue(args, DartUtils::NewDartOSError());
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}
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}
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void FUNCTION_NAME(Directory_FillWithDirectoryListing)(
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Dart_NativeArguments args) {
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// The list that we should fill.
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Dart_Handle results = Dart_GetNativeArgument(args, 0);
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Dart_Handle path = Dart_GetNativeArgument(args, 1);
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Dart_Handle recursive = Dart_GetNativeArgument(args, 2);
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Dart_Handle follow_links = Dart_GetNativeArgument(args, 3);
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Dart_Handle dart_error;
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{
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// Pass the list that should hold the directory listing to the
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// SyncDirectoryListing object, which adds elements to it.
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SyncDirectoryListing sync_listing(results, DartUtils::GetStringValue(path),
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DartUtils::GetBooleanValue(recursive),
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DartUtils::GetBooleanValue(follow_links));
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Directory::List(&sync_listing);
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dart_error = sync_listing.dart_error();
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}
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if (Dart_IsError(dart_error)) {
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Dart_PropagateError(dart_error);
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} else if (!Dart_IsNull(dart_error)) {
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Dart_ThrowException(dart_error);
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}
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}
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static const int kAsyncDirectoryListerFieldIndex = 0;
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void FUNCTION_NAME(Directory_GetAsyncDirectoryListerPointer)(
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Dart_NativeArguments args) {
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AsyncDirectoryListing* listing;
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Dart_Handle dart_this = ThrowIfError(Dart_GetNativeArgument(args, 0));
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ASSERT(Dart_IsInstance(dart_this));
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ThrowIfError(
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Dart_GetNativeInstanceField(dart_this, kAsyncDirectoryListerFieldIndex,
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reinterpret_cast<intptr_t*>(&listing)));
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if (listing != NULL) {
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intptr_t listing_pointer = reinterpret_cast<intptr_t>(listing);
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// Increment the listing's reference count. This native should only be
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// be called when we are about to send the AsyncDirectoryListing* to the
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// IO service.
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listing->Retain();
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Dart_SetReturnValue(args, Dart_NewInteger(listing_pointer));
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}
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}
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static void ReleaseListing(void* isolate_callback_data,
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Dart_WeakPersistentHandle handle,
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void* peer) {
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AsyncDirectoryListing* listing =
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reinterpret_cast<AsyncDirectoryListing*>(peer);
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listing->Release();
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}
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void FUNCTION_NAME(Directory_SetAsyncDirectoryListerPointer)(
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Dart_NativeArguments args) {
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Dart_Handle dart_this = ThrowIfError(Dart_GetNativeArgument(args, 0));
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intptr_t listing_pointer =
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DartUtils::GetIntptrValue(Dart_GetNativeArgument(args, 1));
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AsyncDirectoryListing* listing =
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reinterpret_cast<AsyncDirectoryListing*>(listing_pointer);
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Dart_NewWeakPersistentHandle(dart_this, reinterpret_cast<void*>(listing),
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sizeof(*listing), ReleaseListing);
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Dart_Handle result = Dart_SetNativeInstanceField(
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dart_this, kAsyncDirectoryListerFieldIndex, listing_pointer);
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if (Dart_IsError(result)) {
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Log::PrintErr("SetAsyncDirectoryListerPointer failed\n");
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Dart_PropagateError(result);
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}
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}
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void Directory::SetSystemTemp(const char* path) {
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if (system_temp_path_override_ != NULL) {
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free(system_temp_path_override_);
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system_temp_path_override_ = NULL;
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}
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if (path != NULL) {
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system_temp_path_override_ = strdup(path);
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}
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}
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CObject* Directory::CreateRequest(const CObjectArray& request) {
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if ((request.Length() == 1) && request[0]->IsString()) {
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CObjectString path(request[0]);
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if (Directory::Create(path.CString())) {
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return CObject::True();
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} else {
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return CObject::NewOSError();
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}
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}
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return CObject::IllegalArgumentError();
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}
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CObject* Directory::DeleteRequest(const CObjectArray& request) {
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if ((request.Length() == 2) && request[0]->IsString() &&
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request[1]->IsBool()) {
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CObjectString path(request[0]);
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CObjectBool recursive(request[1]);
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if (Directory::Delete(path.CString(), recursive.Value())) {
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return CObject::True();
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} else {
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return CObject::NewOSError();
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}
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}
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return CObject::IllegalArgumentError();
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}
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CObject* Directory::ExistsRequest(const CObjectArray& request) {
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static const int kExists = 1;
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static const int kDoesNotExist = 0;
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if ((request.Length() == 1) && request[0]->IsString()) {
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CObjectString path(request[0]);
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Directory::ExistsResult result = Directory::Exists(path.CString());
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if (result == Directory::EXISTS) {
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return new CObjectInt32(CObject::NewInt32(kExists));
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} else if (result == Directory::DOES_NOT_EXIST) {
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return new CObjectInt32(CObject::NewInt32(kDoesNotExist));
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} else {
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return CObject::NewOSError();
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}
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}
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return CObject::IllegalArgumentError();
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}
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CObject* Directory::CreateTempRequest(const CObjectArray& request) {
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if ((request.Length() == 1) && request[0]->IsString()) {
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CObjectString path(request[0]);
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const char* result = Directory::CreateTemp(path.CString());
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if (result != NULL) {
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CObject* temp_dir = new CObjectString(CObject::NewString(result));
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return temp_dir;
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} else {
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return CObject::NewOSError();
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}
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}
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return CObject::IllegalArgumentError();
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}
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static CObject* CreateIllegalArgumentError() {
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// Respond with an illegal argument list error message.
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CObjectArray* error = new CObjectArray(CObject::NewArray(3));
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error->SetAt(0, new CObjectInt32(
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CObject::NewInt32(AsyncDirectoryListing::kListError)));
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error->SetAt(1, CObject::Null());
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error->SetAt(2, CObject::IllegalArgumentError());
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return error;
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}
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CObject* Directory::ListStartRequest(const CObjectArray& request) {
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if ((request.Length() == 3) && request[0]->IsString() &&
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request[1]->IsBool() && request[2]->IsBool()) {
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CObjectString path(request[0]);
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CObjectBool recursive(request[1]);
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CObjectBool follow_links(request[2]);
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AsyncDirectoryListing* dir_listing = new AsyncDirectoryListing(
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path.CString(), recursive.Value(), follow_links.Value());
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if (dir_listing->error()) {
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// Report error now, so we capture the correct OSError.
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CObject* err = CObject::NewOSError();
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dir_listing->Release();
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CObjectArray* error = new CObjectArray(CObject::NewArray(3));
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error->SetAt(0, new CObjectInt32(CObject::NewInt32(
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AsyncDirectoryListing::kListError)));
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error->SetAt(1, request[0]);
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error->SetAt(2, err);
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return error;
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}
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// TODO(ajohnsen): Consider returning the first few results.
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return new CObjectIntptr(
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CObject::NewIntptr(reinterpret_cast<intptr_t>(dir_listing)));
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}
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return CreateIllegalArgumentError();
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}
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CObject* Directory::ListNextRequest(const CObjectArray& request) {
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if ((request.Length() == 1) && request[0]->IsIntptr()) {
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CObjectIntptr ptr(request[0]);
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AsyncDirectoryListing* dir_listing =
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reinterpret_cast<AsyncDirectoryListing*>(ptr.Value());
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RefCntReleaseScope<AsyncDirectoryListing> rs(dir_listing);
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if (dir_listing->IsEmpty()) {
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return new CObjectArray(CObject::NewArray(0));
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}
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const int kArraySize = 128;
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CObjectArray* response = new CObjectArray(CObject::NewArray(kArraySize));
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dir_listing->SetArray(response, kArraySize);
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Directory::List(dir_listing);
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// In case the listing ended before it hit the buffer length, we need to
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// override the array length.
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response->AsApiCObject()->value.as_array.length = dir_listing->index();
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return response;
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}
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return CreateIllegalArgumentError();
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}
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CObject* Directory::ListStopRequest(const CObjectArray& request) {
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if ((request.Length() == 1) && request[0]->IsIntptr()) {
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CObjectIntptr ptr(request[0]);
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AsyncDirectoryListing* dir_listing =
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reinterpret_cast<AsyncDirectoryListing*>(ptr.Value());
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RefCntReleaseScope<AsyncDirectoryListing> rs(dir_listing);
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// We have retained a reference to the listing here. Therefore the listing's
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// destructor can't be running. Since no further requests are dispatched by
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// the Dart code after an async stop call, this PopAll() can't be racing
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// with any other call on the listing. We don't do an extra Release(), and
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// we don't delete the weak persistent handle. The file is closed here, but
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// the memory for the listing will be cleaned up when the finalizer runs.
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dir_listing->PopAll();
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return new CObjectBool(CObject::Bool(true));
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}
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return CreateIllegalArgumentError();
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}
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CObject* Directory::RenameRequest(const CObjectArray& request) {
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if ((request.Length() == 2) && request[0]->IsString() &&
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request[1]->IsString()) {
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CObjectString path(request[0]);
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CObjectString new_path(request[1]);
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bool completed = Directory::Rename(path.CString(), new_path.CString());
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if (completed) {
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return CObject::True();
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}
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return CObject::NewOSError();
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}
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return CObject::IllegalArgumentError();
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}
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bool AsyncDirectoryListing::AddFileSystemEntityToResponse(Response type,
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const char* arg) {
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array_->SetAt(index_++, new CObjectInt32(CObject::NewInt32(type)));
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if (arg != NULL) {
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array_->SetAt(index_++, new CObjectString(CObject::NewString(arg)));
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} else {
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array_->SetAt(index_++, CObject::Null());
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}
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return index_ < length_;
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}
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bool AsyncDirectoryListing::HandleDirectory(const char* dir_name) {
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return AddFileSystemEntityToResponse(kListDirectory, dir_name);
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}
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bool AsyncDirectoryListing::HandleFile(const char* file_name) {
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return AddFileSystemEntityToResponse(kListFile, file_name);
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}
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bool AsyncDirectoryListing::HandleLink(const char* link_name) {
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return AddFileSystemEntityToResponse(kListLink, link_name);
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}
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void AsyncDirectoryListing::HandleDone() {
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AddFileSystemEntityToResponse(kListDone, NULL);
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}
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bool AsyncDirectoryListing::HandleError() {
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CObject* err = CObject::NewOSError();
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array_->SetAt(index_++, new CObjectInt32(CObject::NewInt32(kListError)));
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CObjectArray* response = new CObjectArray(CObject::NewArray(3));
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response->SetAt(0, new CObjectInt32(CObject::NewInt32(kListError)));
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// Delay calling CurrentPath() until after CObject::NewOSError() in case
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// CurrentPath() pollutes the OS error code.
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response->SetAt(1, new CObjectString(CObject::NewString(
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error() ? "Invalid path" : CurrentPath())));
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response->SetAt(2, err);
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array_->SetAt(index_++, response);
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return index_ < length_;
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}
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bool SyncDirectoryListing::HandleDirectory(const char* dir_name) {
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Dart_Handle dir_name_dart = DartUtils::NewString(dir_name);
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Dart_Handle dir = Dart_New(directory_type_, Dart_Null(), 1, &dir_name_dart);
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Dart_Handle result = Dart_Invoke(results_, add_string_, 1, &dir);
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if (Dart_IsError(result)) {
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dart_error_ = result;
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return false;
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}
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return true;
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}
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bool SyncDirectoryListing::HandleLink(const char* link_name) {
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Dart_Handle link_name_dart = DartUtils::NewString(link_name);
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Dart_Handle link = Dart_New(link_type_, Dart_Null(), 1, &link_name_dart);
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Dart_Handle result = Dart_Invoke(results_, add_string_, 1, &link);
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if (Dart_IsError(result)) {
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dart_error_ = result;
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return false;
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}
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return true;
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}
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bool SyncDirectoryListing::HandleFile(const char* file_name) {
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Dart_Handle file_name_dart = DartUtils::NewString(file_name);
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Dart_Handle file = Dart_New(file_type_, Dart_Null(), 1, &file_name_dart);
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Dart_Handle result = Dart_Invoke(results_, add_string_, 1, &file);
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if (Dart_IsError(result)) {
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dart_error_ = result;
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return false;
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}
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return true;
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}
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bool SyncDirectoryListing::HandleError() {
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Dart_Handle dart_os_error = DartUtils::NewDartOSError();
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Dart_Handle args[3];
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args[0] = DartUtils::NewString("Directory listing failed");
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args[1] = DartUtils::NewString(error() ? "Invalid path" : CurrentPath());
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args[2] = dart_os_error;
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dart_error_ = Dart_New(
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DartUtils::GetDartType(DartUtils::kIOLibURL, "FileSystemException"),
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Dart_Null(), 3, args);
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return false;
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}
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static bool ListNext(DirectoryListing* listing) {
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switch (listing->top()->Next(listing)) {
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case kListFile:
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return listing->HandleFile(listing->CurrentPath());
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case kListLink:
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return listing->HandleLink(listing->CurrentPath());
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case kListDirectory:
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if (listing->recursive()) {
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listing->Push(new DirectoryListingEntry(listing->top()));
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}
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return listing->HandleDirectory(listing->CurrentPath());
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case kListError:
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return listing->HandleError();
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case kListDone:
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listing->Pop();
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if (listing->IsEmpty()) {
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listing->HandleDone();
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return false;
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} else {
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return true;
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}
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default:
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UNREACHABLE();
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}
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return false;
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}
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void Directory::List(DirectoryListing* listing) {
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if (listing->error()) {
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listing->HandleError();
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listing->HandleDone();
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} else {
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while (ListNext(listing)) {
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}
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}
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}
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} // namespace bin
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} // namespace dart
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#endif // !defined(DART_IO_DISABLED)
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