Index: mojo/services/files/public/cpp/lib/input_stream_file.cc |
diff --git a/mojo/services/files/public/cpp/lib/input_stream_file.cc b/mojo/services/files/public/cpp/lib/input_stream_file.cc |
deleted file mode 100644 |
index 7408442575dd912606493f49849172e005d57a32..0000000000000000000000000000000000000000 |
--- a/mojo/services/files/public/cpp/lib/input_stream_file.cc |
+++ /dev/null |
@@ -1,302 +0,0 @@ |
-// Copyright 2015 The Chromium Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style license that can be |
-// found in the LICENSE file. |
- |
-#include "mojo/services/files/public/cpp/input_stream_file.h" |
- |
-#include <utility> |
- |
-#include "mojo/public/cpp/environment/logging.h" |
- |
-namespace files_impl { |
- |
-InputStreamFile::PendingRead::PendingRead(uint32_t num_bytes, |
- const ReadCallback& callback) |
- : num_bytes(num_bytes), callback(callback) {} |
- |
-InputStreamFile::PendingRead::~PendingRead() {} |
- |
-// static |
-std::unique_ptr<InputStreamFile> InputStreamFile::Create( |
- Client* client, |
- mojo::InterfaceRequest<mojo::files::File> request) { |
- // TODO(vtl): Use make_unique when we have C++14. |
- return std::unique_ptr<InputStreamFile>( |
- new InputStreamFile(client, request.Pass())); |
-} |
- |
-InputStreamFile::~InputStreamFile() { |
- if (was_destroyed_) |
- *was_destroyed_ = true; |
-} |
- |
-InputStreamFile::InputStreamFile( |
- Client* client, |
- mojo::InterfaceRequest<mojo::files::File> request) |
- : client_(client), |
- is_closed_(false), |
- was_destroyed_(nullptr), |
- binding_(this, request.Pass()) { |
- binding_.set_connection_error_handler([this]() { |
- if (client_) |
- client_->OnClosed(); |
- }); |
-} |
- |
-void InputStreamFile::Close(const CloseCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED); |
- return; |
- } |
- |
- // TODO(vtl): Call pending read callbacks? |
- |
- is_closed_ = true; |
- callback.Run(mojo::files::Error::OK); |
- |
- if (client_) |
- client_->OnClosed(); |
-} |
- |
-void InputStreamFile::Read(uint32_t num_bytes_to_read, |
- int64_t offset, |
- mojo::files::Whence whence, |
- const ReadCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED, mojo::Array<uint8_t>()); |
- return; |
- } |
- |
- if (offset != 0 || whence != mojo::files::Whence::FROM_CURRENT) { |
- // TODO(vtl): Is this the "right" behavior? |
- callback.Run(mojo::files::Error::INVALID_ARGUMENT, mojo::Array<uint8_t>()); |
- return; |
- } |
- |
- bool should_start_read = pending_read_queue_.empty(); |
- pending_read_queue_.push_back(PendingRead(num_bytes_to_read, callback)); |
- if (should_start_read) |
- StartRead(); |
-} |
- |
-void InputStreamFile::Write(mojo::Array<uint8_t> bytes_to_write, |
- int64_t offset, |
- mojo::files::Whence whence, |
- const WriteCallback& callback) { |
- MOJO_DCHECK(!bytes_to_write.is_null()); |
- |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED, 0); |
- return; |
- } |
- |
- // TODO(vtl): Is this what we want? (Also is "unavailable" right? Maybe |
- // unsupported/EINVAL is better.) |
- callback.Run(mojo::files::Error::UNAVAILABLE, 0); |
-} |
- |
-void InputStreamFile::ReadToStream(mojo::ScopedDataPipeProducerHandle source, |
- int64_t offset, |
- mojo::files::Whence whence, |
- int64_t num_bytes_to_read, |
- const ReadToStreamCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED); |
- return; |
- } |
- |
- // TODO(vtl) |
- MOJO_DLOG(ERROR) << "Not implemented"; |
- callback.Run(mojo::files::Error::UNIMPLEMENTED); |
-} |
- |
-void InputStreamFile::WriteFromStream(mojo::ScopedDataPipeConsumerHandle sink, |
- int64_t offset, |
- mojo::files::Whence whence, |
- const WriteFromStreamCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED); |
- return; |
- } |
- |
- // TODO(vtl): Is this what we want? (Also is "unavailable" right? Maybe |
- // unsupported/EINVAL is better.) |
- callback.Run(mojo::files::Error::UNAVAILABLE); |
-} |
- |
-void InputStreamFile::Tell(const TellCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED, 0); |
- return; |
- } |
- |
- // TODO(vtl): Is this what we want? (Also is "unavailable" right? Maybe |
- // unsupported/EINVAL is better.) |
- callback.Run(mojo::files::Error::UNAVAILABLE, 0); |
-} |
- |
-void InputStreamFile::Seek(int64_t offset, |
- mojo::files::Whence whence, |
- const SeekCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED, 0); |
- return; |
- } |
- |
- // TODO(vtl): Is this what we want? (Also is "unavailable" right? Maybe |
- // unsupported/EINVAL is better.) |
- callback.Run(mojo::files::Error::UNAVAILABLE, 0); |
-} |
- |
-void InputStreamFile::Stat(const StatCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED, nullptr); |
- return; |
- } |
- |
- // TODO(vtl) |
- MOJO_DLOG(ERROR) << "Not implemented"; |
- callback.Run(mojo::files::Error::UNIMPLEMENTED, nullptr); |
-} |
- |
-void InputStreamFile::Truncate(int64_t size, const TruncateCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED); |
- return; |
- } |
- |
- // TODO(vtl): Is this what we want? (Also is "unavailable" right? Maybe |
- // unsupported/EINVAL is better.) |
- callback.Run(mojo::files::Error::UNAVAILABLE); |
-} |
- |
-void InputStreamFile::Touch(mojo::files::TimespecOrNowPtr atime, |
- mojo::files::TimespecOrNowPtr mtime, |
- const TouchCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED); |
- return; |
- } |
- |
- // TODO(vtl): Is this what we want? (Also is "unavailable" right? Maybe |
- // unsupported/EINVAL is better.) |
- callback.Run(mojo::files::Error::UNAVAILABLE); |
-} |
- |
-void InputStreamFile::Dup(mojo::InterfaceRequest<mojo::files::File> file, |
- const DupCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED); |
- return; |
- } |
- |
- // TODO(vtl): Is this what we want? (Also is "unavailable" right? Maybe |
- // unsupported/EINVAL is better.) |
- callback.Run(mojo::files::Error::UNAVAILABLE); |
-} |
- |
-void InputStreamFile::Reopen(mojo::InterfaceRequest<mojo::files::File> file, |
- uint32_t open_flags, |
- const ReopenCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED); |
- return; |
- } |
- |
- // TODO(vtl): Is this what we want? (Also is "unavailable" right? Maybe |
- // unsupported/EINVAL is better.) |
- callback.Run(mojo::files::Error::UNAVAILABLE); |
-} |
- |
-void InputStreamFile::AsBuffer(const AsBufferCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED, mojo::ScopedSharedBufferHandle()); |
- return; |
- } |
- |
- // TODO(vtl): Is this what we want? (Also is "unavailable" right? Maybe |
- // unsupported/EINVAL is better.) |
- callback.Run(mojo::files::Error::UNAVAILABLE, |
- mojo::ScopedSharedBufferHandle()); |
-} |
- |
-void InputStreamFile::Ioctl(uint32_t request, |
- mojo::Array<uint32_t> in_values, |
- const IoctlCallback& callback) { |
- if (is_closed_) { |
- callback.Run(mojo::files::Error::CLOSED, mojo::Array<uint32_t>()); |
- return; |
- } |
- |
- callback.Run(mojo::files::Error::UNIMPLEMENTED, mojo::Array<uint32_t>()); |
-} |
- |
-void InputStreamFile::StartRead() { |
- MOJO_DCHECK(!pending_read_queue_.empty()); |
- |
- // If we don't have a client, just drain all the reads. |
- if (!client_) { |
- while (!pending_read_queue_.empty()) { |
- // TODO(vtl): Is this what we want? |
- pending_read_queue_.front().callback.Run(mojo::files::Error::UNAVAILABLE, |
- mojo::Array<uint8_t>()); |
- pending_read_queue_.pop_front(); |
- } |
- return; |
- } |
- |
- do { |
- // Find a non-zero-byte read, completing any zero-byte reads at the front of |
- // the queue. Note that we do this in FIFO order (thus couldn't have |
- // completed them earlier). |
- while (!pending_read_queue_.front().num_bytes) { |
- pending_read_queue_.front().callback.Run(mojo::files::Error::OK, |
- mojo::Array<uint8_t>()); |
- pending_read_queue_.pop_front(); |
- |
- if (pending_read_queue_.empty()) |
- return; |
- } |
- |
- // Binding |this| is OK, since the client must not call the callback if we |
- // are destroyed. |
- mojo::files::Error error = mojo::files::Error::INTERNAL; |
- mojo::Array<uint8_t> data; |
- // Detect if we were destroyed inside |RequestData()|. |
- bool was_destroyed = false; |
- MOJO_CHECK(!was_destroyed_); |
- was_destroyed_ = &was_destroyed; |
- bool synchronous_completion = client_->RequestData( |
- pending_read_queue_.front().num_bytes, &error, &data, |
- [this](mojo::files::Error e, mojo::Array<uint8_t> d) { |
- CompleteRead(e, d.Pass()); |
- if (!pending_read_queue_.empty()) |
- StartRead(); |
- }); |
- if (was_destroyed) |
- return; |
- was_destroyed_ = nullptr; |
- if (synchronous_completion) |
- CompleteRead(error, data.Pass()); |
- else |
- return; // Asynchronous completion. |
- } while (!pending_read_queue_.empty()); |
-} |
- |
-void InputStreamFile::CompleteRead(mojo::files::Error error, |
- mojo::Array<uint8_t> data) { |
- MOJO_CHECK(!pending_read_queue_.empty()); |
- |
- if (error != mojo::files::Error::OK) { |
- pending_read_queue_.front().callback.Run(error, mojo::Array<uint8_t>()); |
- pending_read_queue_.pop_front(); |
- return; |
- } |
- |
- MOJO_CHECK(!data.is_null()); |
- MOJO_CHECK(data.size() <= pending_read_queue_.front().num_bytes); |
- pending_read_queue_.front().callback.Run(mojo::files::Error::OK, data.Pass()); |
- pending_read_queue_.pop_front(); |
-} |
- |
-} // namespace files_impl |