cshapiro@google.com
1472427af8
This reverts commit 63480a81fccbde001494dd535cd06a8fa02ed261. Review URL: https://chromiumcodereview.appspot.com//10379018 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@7352 260f80e4-7a28-3924-810f-c04153c831b5
966 lines
29 KiB
C++
966 lines
29 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 "bin/file.h"
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#include "bin/builtin.h"
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#include "bin/dartutils.h"
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#include "bin/thread.h"
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#include "bin/utils.h"
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#include "include/dart_api.h"
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dart::Mutex File::mutex_;
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int File::service_ports_size_ = 0;
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Dart_Port* File::service_ports_ = NULL;
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int File::service_ports_index_ = 0;
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bool File::ReadFully(void* buffer, int64_t num_bytes) {
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int64_t remaining = num_bytes;
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char* current_buffer = reinterpret_cast<char*>(buffer);
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while (remaining > 0) {
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int bytes_read = Read(current_buffer, remaining);
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if (bytes_read <= 0) {
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return false;
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}
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remaining -= bytes_read; // Reduce the number of remaining bytes.
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current_buffer += bytes_read; // Move the buffer forward.
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}
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return true;
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}
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bool File::WriteFully(const void* buffer, int64_t num_bytes) {
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int64_t remaining = num_bytes;
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const char* current_buffer = reinterpret_cast<const char*>(buffer);
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while (remaining > 0) {
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int bytes_read = Write(current_buffer, remaining);
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if (bytes_read < 0) {
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return false;
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}
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remaining -= bytes_read; // Reduce the number of remaining bytes.
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current_buffer += bytes_read; // Move the buffer forward.
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}
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return true;
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}
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File::FileOpenMode File::DartModeToFileMode(DartFileOpenMode mode) {
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ASSERT(mode == File::kDartRead ||
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mode == File::kDartWrite ||
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mode == File::kDartAppend);
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if (mode == File::kDartWrite) {
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return File::kWriteTruncate;
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}
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if (mode == File::kDartAppend) {
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return File::kWrite;
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}
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return File::kRead;
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}
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void FUNCTION_NAME(File_Open)(Dart_NativeArguments args) {
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Dart_EnterScope();
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const char* filename =
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DartUtils::GetStringValue(Dart_GetNativeArgument(args, 0));
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int mode = DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 1));
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File::DartFileOpenMode dart_file_mode =
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static_cast<File::DartFileOpenMode>(mode);
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File::FileOpenMode file_mode = File::DartModeToFileMode(dart_file_mode);
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// Check that the file exists before opening it only for
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// reading. This is to prevent the opening of directories as
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// files. Directories can be opened for reading using the posix
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// 'open' call.
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File* file = NULL;
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file = File::Open(filename, file_mode);
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if (file != NULL) {
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Dart_SetReturnValue(args,
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Dart_NewInteger(reinterpret_cast<intptr_t>(file)));
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_Exists)(Dart_NativeArguments args) {
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Dart_EnterScope();
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const char* filename =
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DartUtils::GetStringValue(Dart_GetNativeArgument(args, 0));
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bool exists = File::Exists(filename);
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Dart_SetReturnValue(args, Dart_NewBoolean(exists));
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_Close)(Dart_NativeArguments args) {
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Dart_EnterScope();
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intptr_t return_value = -1;
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intptr_t value =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File* file = reinterpret_cast<File*>(value);
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if (file != NULL) {
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delete file;
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return_value = 0;
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}
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Dart_SetReturnValue(args, Dart_NewInteger(return_value));
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_ReadByte)(Dart_NativeArguments args) {
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Dart_EnterScope();
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intptr_t value =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File* file = reinterpret_cast<File*>(value);
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if (file != NULL) {
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uint8_t buffer;
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int bytes_read = file->Read(reinterpret_cast<void*>(&buffer), 1);
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if (bytes_read == 1) {
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Dart_SetReturnValue(args, Dart_NewInteger(buffer));
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} else if (bytes_read == 0) {
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Dart_SetReturnValue(args, Dart_NewInteger(-1));
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_WriteByte)(Dart_NativeArguments args) {
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Dart_EnterScope();
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intptr_t value =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File* file = reinterpret_cast<File*>(value);
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if (file != NULL) {
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int64_t value = DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 1));
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uint8_t buffer = static_cast<uint8_t>(value & 0xff);
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int bytes_written = file->Write(reinterpret_cast<void*>(&buffer), 1);
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if (bytes_written >= 0) {
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Dart_SetReturnValue(args, Dart_NewInteger(bytes_written));
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_WriteString)(Dart_NativeArguments args) {
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Dart_EnterScope();
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intptr_t value =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File* file = reinterpret_cast<File*>(value);
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if (file != NULL) {
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const char* str =
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DartUtils::GetStringValue(Dart_GetNativeArgument(args, 1));
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int bytes_written = file->Write(reinterpret_cast<const void*>(str),
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strlen(str));
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if (bytes_written >= 0) {
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Dart_SetReturnValue(args, Dart_NewInteger(bytes_written));
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_ReadList)(Dart_NativeArguments args) {
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Dart_EnterScope();
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intptr_t value =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File* file = reinterpret_cast<File*>(value);
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if (file != NULL) {
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Dart_Handle buffer_obj = Dart_GetNativeArgument(args, 1);
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ASSERT(Dart_IsList(buffer_obj));
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int64_t offset =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 2));
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int64_t length =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 3));
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intptr_t array_len = 0;
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Dart_Handle result = Dart_ListLength(buffer_obj, &array_len);
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if (Dart_IsError(result)) {
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Dart_PropagateError(result);
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}
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ASSERT((offset + length) <= array_len);
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uint8_t* buffer = new uint8_t[length];
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int bytes_read = file->Read(reinterpret_cast<void*>(buffer), length);
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if (bytes_read >= 0) {
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result =
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Dart_ListSetAsBytes(buffer_obj, offset, buffer, bytes_read);
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if (Dart_IsError(result)) {
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delete[] buffer;
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Dart_PropagateError(result);
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}
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Dart_SetReturnValue(args, Dart_NewInteger(bytes_read));
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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delete[] buffer;
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_WriteList)(Dart_NativeArguments args) {
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Dart_EnterScope();
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intptr_t value =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File* file = reinterpret_cast<File*>(value);
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if (file != NULL) {
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Dart_Handle buffer_obj = Dart_GetNativeArgument(args, 1);
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ASSERT(Dart_IsList(buffer_obj));
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int64_t offset =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 2));
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int64_t length =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 3));
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intptr_t buffer_len = 0;
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Dart_Handle result = Dart_ListLength(buffer_obj, &buffer_len);
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if (Dart_IsError(result)) {
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Dart_PropagateError(result);
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}
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ASSERT((offset + length) <= buffer_len);
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uint8_t* buffer = new uint8_t[length];
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result = Dart_ListGetAsBytes(buffer_obj, offset, buffer, length);
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if (Dart_IsError(result)) {
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delete[] buffer;
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Dart_PropagateError(result);
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}
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int bytes_written = file->Write(reinterpret_cast<void*>(buffer), length);
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if (bytes_written >= 0) {
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Dart_SetReturnValue(args, Dart_NewInteger(bytes_written));
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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delete[] buffer;
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_Position)(Dart_NativeArguments args) {
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Dart_EnterScope();
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intptr_t value =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File* file = reinterpret_cast<File*>(value);
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if (file != NULL) {
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intptr_t return_value = file->Position();
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if (return_value >= 0) {
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Dart_SetReturnValue(args, Dart_NewInteger(return_value));
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_SetPosition)(Dart_NativeArguments args) {
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Dart_EnterScope();
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intptr_t value =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File* file = reinterpret_cast<File*>(value);
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if (file != NULL) {
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int64_t position =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 1));
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if (file->SetPosition(position)) {
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Dart_SetReturnValue(args, Dart_True());
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_Truncate)(Dart_NativeArguments args) {
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Dart_EnterScope();
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intptr_t value =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File* file = reinterpret_cast<File*>(value);
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if (file != NULL) {
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int64_t length =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 1));
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if (file->Truncate(length)) {
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Dart_SetReturnValue(args, Dart_True());
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_Length)(Dart_NativeArguments args) {
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Dart_EnterScope();
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intptr_t value =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File* file = reinterpret_cast<File*>(value);
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if (file != NULL) {
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intptr_t return_value = file->Length();
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if (return_value >= 0) {
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Dart_SetReturnValue(args, Dart_NewInteger(return_value));
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_LengthFromName)(Dart_NativeArguments args) {
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Dart_EnterScope();
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const char* name =
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DartUtils::GetStringValue(Dart_GetNativeArgument(args, 0));
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intptr_t return_value = File::LengthFromName(name);
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if (return_value >= 0) {
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Dart_SetReturnValue(args, Dart_NewInteger(return_value));
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_Flush)(Dart_NativeArguments args) {
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Dart_EnterScope();
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intptr_t value =
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DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File* file = reinterpret_cast<File*>(value);
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if (file != NULL) {
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if (file->Flush()) {
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Dart_SetReturnValue(args, Dart_True());
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_Create)(Dart_NativeArguments args) {
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Dart_EnterScope();
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const char* str =
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DartUtils::GetStringValue(Dart_GetNativeArgument(args, 0));
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bool result = File::Create(str);
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if (result) {
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Dart_SetReturnValue(args, Dart_NewBoolean(result));
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_Delete)(Dart_NativeArguments args) {
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Dart_EnterScope();
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const char* str =
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DartUtils::GetStringValue(Dart_GetNativeArgument(args, 0));
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bool result = File::Delete(str);
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if (result) {
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Dart_SetReturnValue(args, Dart_NewBoolean(result));
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_Directory)(Dart_NativeArguments args) {
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Dart_EnterScope();
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const char* str =
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DartUtils::GetStringValue(Dart_GetNativeArgument(args, 0));
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char* str_copy = strdup(str);
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char* path = File::GetContainingDirectory(str_copy);
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free(str_copy);
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if (path != NULL) {
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Dart_SetReturnValue(args, Dart_NewString(path));
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free(path);
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_FullPath)(Dart_NativeArguments args) {
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Dart_EnterScope();
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const char* str =
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DartUtils::GetStringValue(Dart_GetNativeArgument(args, 0));
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char* path = File::GetCanonicalPath(str);
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if (path != NULL) {
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Dart_SetReturnValue(args, Dart_NewString(path));
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free(path);
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} else {
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Dart_Handle err = DartUtils::NewDartOSError();
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if (Dart_IsError(err)) {
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Dart_PropagateError(err);
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}
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Dart_SetReturnValue(args, err);
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}
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_OpenStdio)(Dart_NativeArguments args) {
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Dart_EnterScope();
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int fd = DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File* file = File::OpenStdio(fd);
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Dart_SetReturnValue(args, Dart_NewInteger(reinterpret_cast<intptr_t>(file)));
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Dart_ExitScope();
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}
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void FUNCTION_NAME(File_GetStdioHandleType)(Dart_NativeArguments args) {
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Dart_EnterScope();
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int fd = DartUtils::GetIntegerValue(Dart_GetNativeArgument(args, 0));
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File::StdioHandleType type = File::GetStdioHandleType(fd);
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Dart_SetReturnValue(args, Dart_NewInteger(type));
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Dart_ExitScope();
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}
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static int64_t CObjectInt32OrInt64ToInt64(CObject* cobject) {
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ASSERT(cobject->IsInt32OrInt64());
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int64_t result;
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if (cobject->IsInt32()) {
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CObjectInt32 value(cobject);
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result = value.Value();
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} else {
|
|
CObjectInt64 value(cobject);
|
|
result = value.Value();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
File* CObjectToFilePointer(CObject* cobject) {
|
|
CObjectIntptr value(cobject);
|
|
return reinterpret_cast<File*>(value.Value());
|
|
}
|
|
|
|
|
|
static CObject* FileExistsRequest(const CObjectArray& request) {
|
|
if (request.Length() == 2 && request[1]->IsString()) {
|
|
CObjectString filename(request[1]);
|
|
bool result = File::Exists(filename.CString());
|
|
return CObject::Bool(result);
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
static CObject* FileCreateRequest(const CObjectArray& request) {
|
|
if (request.Length() == 2 && request[1]->IsString()) {
|
|
CObjectString filename(request[1]);
|
|
bool result = File::Create(filename.CString());
|
|
if (result) {
|
|
return CObject::True();
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
static CObject* FileOpenRequest(const CObjectArray& request) {
|
|
File* file = NULL;
|
|
if (request.Length() == 3 &&
|
|
request[1]->IsString() &&
|
|
request[2]->IsInt32()) {
|
|
CObjectString filename(request[1]);
|
|
CObjectInt32 mode(request[2]);
|
|
File::DartFileOpenMode dart_file_mode =
|
|
static_cast<File::DartFileOpenMode>(mode.Value());
|
|
File::FileOpenMode file_mode = File::DartModeToFileMode(dart_file_mode);
|
|
file = File::Open(filename.CString(), file_mode);
|
|
if (file != NULL) {
|
|
return new CObjectIntptr(
|
|
CObject::NewIntptr(reinterpret_cast<intptr_t>(file)));
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
static CObject* FileDeleteRequest(const CObjectArray& request) {
|
|
if (request.Length() == 2 && request[1]->IsString()) {
|
|
CObjectString filename(request[1]);
|
|
bool result = File::Delete(filename.CString());
|
|
if (result) {
|
|
return CObject::True();
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
}
|
|
return CObject::False();
|
|
}
|
|
|
|
|
|
static CObject* FileFullPathRequest(const CObjectArray& request) {
|
|
if (request.Length() == 2 && request[1]->IsString()) {
|
|
CObjectString filename(request[1]);
|
|
char* result = File::GetCanonicalPath(filename.CString());
|
|
if (result != NULL) {
|
|
CObject* path = new CObjectString(CObject::NewString(result));
|
|
free(result);
|
|
return path;
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
static CObject* FileDirectoryRequest(const CObjectArray& request) {
|
|
if (request.Length() == 2 && request[1]->IsString()) {
|
|
CObjectString filename(request[1]);
|
|
char* str_copy = strdup(filename.CString());
|
|
char* path = File::GetContainingDirectory(str_copy);
|
|
free(str_copy);
|
|
if (path != NULL) {
|
|
CObject* result = new CObjectString(CObject::NewString(path));
|
|
free(path);
|
|
return result;
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
}
|
|
return CObject::Null();
|
|
}
|
|
|
|
|
|
static CObject* FileCloseRequest(const CObjectArray& request) {
|
|
intptr_t return_value = -1;
|
|
if (request.Length() == 2 && request[1]->IsIntptr()) {
|
|
File* file = CObjectToFilePointer(request[1]);
|
|
if (file != NULL) {
|
|
delete file;
|
|
return_value = 0;
|
|
}
|
|
}
|
|
return new CObjectIntptr(CObject::NewIntptr(return_value));
|
|
}
|
|
|
|
|
|
static CObject* FilePositionRequest(const CObjectArray& request) {
|
|
if (request.Length() == 2 && request[1]->IsIntptr()) {
|
|
File* file = CObjectToFilePointer(request[1]);
|
|
if (file != NULL && !file->IsClosed()) {
|
|
intptr_t return_value = file->Position();
|
|
if (return_value >= 0) {
|
|
return new CObjectIntptr(CObject::NewIntptr(return_value));
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
} else {
|
|
return CObject::FileClosedError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
static CObject* FileSetPositionRequest(const CObjectArray& request) {
|
|
if (request.Length() == 3 &&
|
|
request[1]->IsIntptr() &&
|
|
request[2]->IsInt32OrInt64()) {
|
|
File* file = CObjectToFilePointer(request[1]);
|
|
if (file != NULL && !file->IsClosed()) {
|
|
int64_t position = CObjectInt32OrInt64ToInt64(request[2]);
|
|
if (file->SetPosition(position)) {
|
|
return CObject::True();
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
} else {
|
|
return CObject::FileClosedError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
static CObject* FileTruncateRequest(const CObjectArray& request) {
|
|
if (request.Length() == 3 &&
|
|
request[1]->IsIntptr() &&
|
|
request[2]->IsInt32OrInt64()) {
|
|
File* file = CObjectToFilePointer(request[1]);
|
|
if (file != NULL && !file->IsClosed()) {
|
|
int64_t length = CObjectInt32OrInt64ToInt64(request[2]);
|
|
if (file->Truncate(length)) {
|
|
return CObject::True();
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
} else {
|
|
return CObject::FileClosedError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
static CObject* FileLengthRequest(const CObjectArray& request) {
|
|
if (request.Length() == 2 && request[1]->IsIntptr()) {
|
|
File* file = CObjectToFilePointer(request[1]);
|
|
if (file != NULL && !file->IsClosed()) {
|
|
intptr_t return_value = file->Length();
|
|
if (return_value >= 0) {
|
|
return new CObjectIntptr(CObject::NewIntptr(return_value));
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
} else {
|
|
return CObject::FileClosedError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
static CObject* FileLengthFromNameRequest(const CObjectArray& request) {
|
|
if (request.Length() == 2 && request[1]->IsString()) {
|
|
CObjectString filename(request[1]);
|
|
intptr_t return_value = File::LengthFromName(filename.CString());
|
|
if (return_value >= 0) {
|
|
return new CObjectIntptr(CObject::NewIntptr(return_value));
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
static CObject* FileFlushRequest(const CObjectArray& request) {
|
|
intptr_t return_value = -1;
|
|
if (request.Length() == 2 && request[1]->IsIntptr()) {
|
|
File* file = CObjectToFilePointer(request[1]);
|
|
if (file != NULL && !file->IsClosed()) {
|
|
if (file->Flush()) {
|
|
return CObject::True();
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
} else {
|
|
return CObject::FileClosedError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
return new CObjectIntptr(CObject::NewIntptr(return_value));
|
|
}
|
|
|
|
|
|
static CObject* FileReadByteRequest(const CObjectArray& request) {
|
|
if (request.Length() == 2 && request[1]->IsIntptr()) {
|
|
File* file = CObjectToFilePointer(request[1]);
|
|
if (file != NULL && !file->IsClosed()) {
|
|
uint8_t buffer;
|
|
int bytes_read = file->Read(reinterpret_cast<void*>(&buffer), 1);
|
|
if (bytes_read > 0) {
|
|
return new CObjectIntptr(CObject::NewIntptr(buffer));
|
|
} else if (bytes_read == 0) {
|
|
return new CObjectIntptr(CObject::NewIntptr(-1));
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
} else {
|
|
return CObject::FileClosedError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
static CObject* FileWriteByteRequest(const CObjectArray& request) {
|
|
if (request.Length() == 3 &&
|
|
request[1]->IsIntptr() &&
|
|
request[2]->IsInt32OrInt64()) {
|
|
File* file = CObjectToFilePointer(request[1]);
|
|
if (file != NULL && !file->IsClosed()) {
|
|
int64_t byte = CObjectInt32OrInt64ToInt64(request[2]);
|
|
uint8_t buffer = static_cast<uint8_t>(byte & 0xff);
|
|
int bytes_written = file->Write(reinterpret_cast<void*>(&buffer), 1);
|
|
if (bytes_written > 0) {
|
|
return new CObjectIntptr(CObject::NewIntptr(bytes_written));
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
} else {
|
|
return CObject::FileClosedError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
static CObject* FileReadListRequest(const CObjectArray& request) {
|
|
if (request.Length() == 3 &&
|
|
request[1]->IsIntptr() &&
|
|
request[2]->IsInt32OrInt64()) {
|
|
File* file = CObjectToFilePointer(request[1]);
|
|
if (file != NULL && !file->IsClosed()) {
|
|
int64_t length = CObjectInt32OrInt64ToInt64(request[2]);
|
|
CObjectUint8Array* byte_array =
|
|
new CObjectUint8Array(CObject::NewUint8Array(length));
|
|
void* buffer = reinterpret_cast<void*>(byte_array->Buffer());
|
|
int bytes_read = file->Read(buffer, byte_array->Length());
|
|
if (bytes_read >= 0) {
|
|
CObjectArray* result = new CObjectArray(CObject::NewArray(3));
|
|
result->SetAt(0, new CObjectIntptr(CObject::NewInt32(0)));
|
|
result->SetAt(1, new CObjectIntptr(CObject::NewIntptr(bytes_read)));
|
|
result->SetAt(2, byte_array);
|
|
return result;
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
} else {
|
|
return CObject::FileClosedError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
static CObject* FileWriteListRequest(const CObjectArray& request) {
|
|
if (request.Length() == 5 &&
|
|
request[1]->IsIntptr() &&
|
|
(request[2]->IsUint8Array() || request[2]->IsArray()) &&
|
|
request[3]->IsInt32OrInt64() &&
|
|
request[4]->IsInt32OrInt64()) {
|
|
File* file = CObjectToFilePointer(request[1]);
|
|
if (file != NULL && !file->IsClosed()) {
|
|
int64_t offset = CObjectInt32OrInt64ToInt64(request[3]);
|
|
int64_t length = CObjectInt32OrInt64ToInt64(request[4]);
|
|
uint8_t* buffer_start;
|
|
if (request[2]->IsUint8Array()) {
|
|
CObjectUint8Array byte_array(request[2]);
|
|
buffer_start = byte_array.Buffer() + offset;
|
|
} else {
|
|
CObjectArray array(request[2]);
|
|
buffer_start = new uint8_t[length];
|
|
for (int i = 0; i < length; i++) {
|
|
if (array[i + offset]->IsInt32OrInt64()) {
|
|
int64_t value = CObjectInt32OrInt64ToInt64(array[i + offset]);
|
|
buffer_start[i] = value & 0xFF;
|
|
} else {
|
|
// Unsupported type.
|
|
delete[] buffer_start;
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
}
|
|
offset = 0;
|
|
}
|
|
int64_t bytes_written =
|
|
file->Write(reinterpret_cast<void*>(buffer_start), length);
|
|
if (!request[2]->IsUint8Array()) {
|
|
delete[] buffer_start;
|
|
}
|
|
if (bytes_written >= 0) {
|
|
return new CObjectIntptr(CObject::NewIntptr(bytes_written));
|
|
} else {
|
|
return CObject::NewOSError();
|
|
}
|
|
} else {
|
|
return CObject::FileClosedError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
static CObject* FileWriteStringRequest(const CObjectArray& request) {
|
|
if (request.Length() == 3 &&
|
|
request[1]->IsIntptr() &&
|
|
request[2]->IsString()) {
|
|
File* file = CObjectToFilePointer(request[1]);
|
|
if (file != NULL && !file->IsClosed()) {
|
|
CObjectString str(request[2]);
|
|
const void* buffer = reinterpret_cast<const void*>(str.CString());
|
|
int64_t bytes_written = file->Write(buffer, str.Length());
|
|
return new CObjectInt64(CObject::NewInt64(bytes_written));
|
|
} else {
|
|
return CObject::FileClosedError();
|
|
}
|
|
}
|
|
return CObject::IllegalArgumentError();
|
|
}
|
|
|
|
|
|
void FileService(Dart_Port dest_port_id,
|
|
Dart_Port reply_port_id,
|
|
Dart_CObject* message) {
|
|
CObject* response = CObject::False();
|
|
CObjectArray request(message);
|
|
if (message->type == Dart_CObject::kArray) {
|
|
if (request.Length() > 1 && request[0]->IsInt32()) {
|
|
CObjectInt32 requestType(request[0]);
|
|
switch (requestType.Value()) {
|
|
case File::kExistsRequest:
|
|
response = FileExistsRequest(request);
|
|
break;
|
|
case File::kCreateRequest:
|
|
response = FileCreateRequest(request);
|
|
break;
|
|
case File::kOpenRequest:
|
|
response = FileOpenRequest(request);
|
|
break;
|
|
case File::kDeleteRequest:
|
|
response = FileDeleteRequest(request);
|
|
break;
|
|
case File::kFullPathRequest:
|
|
response = FileFullPathRequest(request);
|
|
break;
|
|
case File::kDirectoryRequest:
|
|
response = FileDirectoryRequest(request);
|
|
break;
|
|
case File::kCloseRequest:
|
|
response = FileCloseRequest(request);
|
|
break;
|
|
case File::kPositionRequest:
|
|
response = FilePositionRequest(request);
|
|
break;
|
|
case File::kSetPositionRequest:
|
|
response = FileSetPositionRequest(request);
|
|
break;
|
|
case File::kTruncateRequest:
|
|
response = FileTruncateRequest(request);
|
|
break;
|
|
case File::kLengthRequest:
|
|
response = FileLengthRequest(request);
|
|
break;
|
|
case File::kLengthFromNameRequest:
|
|
response = FileLengthFromNameRequest(request);
|
|
break;
|
|
case File::kFlushRequest:
|
|
response = FileFlushRequest(request);
|
|
break;
|
|
case File::kReadByteRequest:
|
|
response = FileReadByteRequest(request);
|
|
break;
|
|
case File::kWriteByteRequest:
|
|
response = FileWriteByteRequest(request);
|
|
break;
|
|
case File::kReadListRequest:
|
|
response = FileReadListRequest(request);
|
|
break;
|
|
case File::kWriteListRequest:
|
|
response = FileWriteListRequest(request);
|
|
break;
|
|
case File::kWriteStringRequest:
|
|
response = FileWriteStringRequest(request);
|
|
break;
|
|
default:
|
|
UNREACHABLE();
|
|
}
|
|
}
|
|
}
|
|
|
|
Dart_PostCObject(reply_port_id, response->AsApiCObject());
|
|
}
|
|
|
|
|
|
Dart_Port File::GetServicePort() {
|
|
MutexLocker lock(&mutex_);
|
|
if (service_ports_size_ == 0) {
|
|
ASSERT(service_ports_ == NULL);
|
|
service_ports_size_ = 16;
|
|
service_ports_ = new Dart_Port[service_ports_size_];
|
|
service_ports_index_ = 0;
|
|
for (int i = 0; i < service_ports_size_; i++) {
|
|
service_ports_[i] = kIllegalPort;
|
|
}
|
|
}
|
|
|
|
Dart_Port result = service_ports_[service_ports_index_];
|
|
if (result == kIllegalPort) {
|
|
result = Dart_NewNativePort("FileService",
|
|
FileService,
|
|
true);
|
|
ASSERT(result != kIllegalPort);
|
|
service_ports_[service_ports_index_] = result;
|
|
}
|
|
service_ports_index_ = (service_ports_index_ + 1) % service_ports_size_;
|
|
return result;
|
|
}
|
|
|
|
|
|
void FUNCTION_NAME(File_NewServicePort)(Dart_NativeArguments args) {
|
|
Dart_EnterScope();
|
|
Dart_SetReturnValue(args, Dart_Null());
|
|
Dart_Port service_port = File::GetServicePort();
|
|
if (service_port != kIllegalPort) {
|
|
// Return a send port for the service port.
|
|
Dart_Handle send_port = Dart_NewSendPort(service_port);
|
|
Dart_SetReturnValue(args, send_port);
|
|
}
|
|
Dart_ExitScope();
|
|
}
|