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// Copyright 2013 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/edk/system/dispatcher.h"
#include "base/logging.h"
#include "mojo/edk/system/configuration.h"
#include "mojo/edk/system/data_pipe_consumer_dispatcher.h"
#include "mojo/edk/system/data_pipe_producer_dispatcher.h"
#include "mojo/edk/system/message_pipe_dispatcher.h"
#include "mojo/edk/system/platform_handle_dispatcher.h"
#include "mojo/edk/system/shared_buffer_dispatcher.h"
namespace mojo {
namespace edk {
Dispatcher::DispatcherInTransit::DispatcherInTransit() {}
Dispatcher::DispatcherInTransit::DispatcherInTransit(
const DispatcherInTransit& other) = default;
Dispatcher::DispatcherInTransit::~DispatcherInTransit() {}
MojoResult Dispatcher::WriteMessage(const void* bytes,
uint32_t num_bytes,
const DispatcherInTransit* dispatchers,
uint32_t num_dispatchers,
MojoWriteMessageFlags flags) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
MojoResult Dispatcher::ReadMessage(void* bytes,
uint32_t* num_bytes,
MojoHandle* handles,
uint32_t* num_handles,
MojoReadMessageFlags flags) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
MojoResult Dispatcher::DuplicateBufferHandle(
const MojoDuplicateBufferHandleOptions* options,
scoped_refptr<Dispatcher>* new_dispatcher) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
MojoResult Dispatcher::MapBuffer(
uint64_t offset,
uint64_t num_bytes,
MojoMapBufferFlags flags,
scoped_ptr<PlatformSharedBufferMapping>* mapping) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
MojoResult Dispatcher::ReadData(void* elements,
uint32_t* num_bytes,
MojoReadDataFlags flags) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
MojoResult Dispatcher::BeginReadData(const void** buffer,
uint32_t* buffer_num_bytes,
MojoReadDataFlags flags) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
MojoResult Dispatcher::EndReadData(uint32_t num_bytes_read) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
MojoResult Dispatcher::WriteData(const void* elements,
uint32_t* num_bytes,
MojoWriteDataFlags flags) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
MojoResult Dispatcher::BeginWriteData(void** buffer,
uint32_t* buffer_num_bytes,
MojoWriteDataFlags flags) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
MojoResult Dispatcher::EndWriteData(uint32_t num_bytes_written) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
MojoResult Dispatcher::AddWaitingDispatcher(
const scoped_refptr<Dispatcher>& dispatcher,
MojoHandleSignals signals,
uintptr_t context) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
MojoResult Dispatcher::RemoveWaitingDispatcher(
const scoped_refptr<Dispatcher>& dispatcher) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
MojoResult Dispatcher::GetReadyDispatchers(uint32_t* count,
DispatcherVector* dispatchers,
MojoResult* results,
uintptr_t* contexts) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
HandleSignalsState Dispatcher::GetHandleSignalsState() const {
return HandleSignalsState();
}
MojoResult Dispatcher::AddAwakable(Awakable* awakable,
MojoHandleSignals signals,
uintptr_t context,
HandleSignalsState* signals_state) {
return MOJO_RESULT_INVALID_ARGUMENT;
}
void Dispatcher::RemoveAwakable(Awakable* awakable,
HandleSignalsState* handle_signals_state) {
NOTREACHED();
}
void Dispatcher::StartSerialize(uint32_t* num_bytes,
uint32_t* num_ports,
uint32_t* num_platform_handles) {
*num_bytes = 0;
*num_ports = 0;
*num_platform_handles = 0;
}
bool Dispatcher::EndSerialize(void* destination,
ports::PortName* ports,
PlatformHandle* handles) {
LOG(ERROR) << "Attempting to serialize a non-transferrable dispatcher.";
return true;
}
bool Dispatcher::BeginTransit() { return true; }
void Dispatcher::CompleteTransitAndClose() {}
void Dispatcher::CancelTransit() {}
// static
scoped_refptr<Dispatcher> Dispatcher::Deserialize(
Type type,
const void* bytes,
size_t num_bytes,
const ports::PortName* ports,
size_t num_ports,
PlatformHandle* platform_handles,
size_t num_platform_handles) {
switch (type) {
case Type::MESSAGE_PIPE:
return MessagePipeDispatcher::Deserialize(
bytes, num_bytes, ports, num_ports, platform_handles,
num_platform_handles);
case Type::SHARED_BUFFER:
return SharedBufferDispatcher::Deserialize(
bytes, num_bytes, ports, num_ports, platform_handles,
num_platform_handles);
case Type::DATA_PIPE_CONSUMER:
return DataPipeConsumerDispatcher::Deserialize(
bytes, num_bytes, ports, num_ports, platform_handles,
num_platform_handles);
case Type::DATA_PIPE_PRODUCER:
return DataPipeProducerDispatcher::Deserialize(
bytes, num_bytes, ports, num_ports, platform_handles,
num_platform_handles);
case Type::PLATFORM_HANDLE:
return PlatformHandleDispatcher::Deserialize(
bytes, num_bytes, ports, num_ports, platform_handles,
num_platform_handles);
default:
LOG(ERROR) << "Deserializing invalid dispatcher type.";
return nullptr;
}
}
Dispatcher::Dispatcher() {}
Dispatcher::~Dispatcher() {}
} // namespace edk
} // namespace mojo
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