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// Copyright (c) 2009 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 "chrome_frame/sync_msg_reply_dispatcher.h"
#include "ipc/ipc_sync_message.h"
void SyncMessageReplyDispatcher::Push(IPC::SyncMessage* msg,
SyncMessageCallContext* context,
void* key) {
if (context) {
context->message_type_ = msg->type();
context->id_ = IPC::SyncMessage::GetMessageId(*msg);
context->key_ = key;
base::AutoLock lock(message_queue_lock_);
message_queue_.push_back(context);
}
}
bool SyncMessageReplyDispatcher::HandleMessageType(
const IPC::Message& msg, SyncMessageCallContext* context) {
return false;
}
bool SyncMessageReplyDispatcher::OnMessageReceived(const IPC::Message& msg) {
SyncMessageCallContext* context = GetContext(msg);
// No context e.g. no return values and/or don't care
if (!context) {
return false;
}
return HandleMessageType(msg, context);
}
void SyncMessageReplyDispatcher::Cancel(void* key) {
DCHECK(key != NULL);
base::AutoLock lock(message_queue_lock_);
PendingSyncMessageQueue::iterator it = message_queue_.begin();
while (it != message_queue_.end()) {
SyncMessageCallContext* context = *it;
if (context->key_ == key) {
it = message_queue_.erase(it);
delete context;
} else {
++it;
}
}
}
SyncMessageReplyDispatcher::SyncMessageCallContext*
SyncMessageReplyDispatcher::GetContext(const IPC::Message& msg) {
if (!msg.is_reply())
return NULL;
int id = IPC::SyncMessage::GetMessageId(msg);
base::AutoLock lock(message_queue_lock_);
PendingSyncMessageQueue::iterator it;
for (it = message_queue_.begin(); it != message_queue_.end(); ++it) {
SyncMessageCallContext* context = *it;
if (context->id_ == id) {
message_queue_.erase(it);
return context;
}
}
return NULL;
}
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