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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, void* callback,
void* key) {
MessageSent pending(IPC::SyncMessage::GetMessageId(*msg),
msg->type(), callback, key);
AutoLock lock(message_queue_lock_);
message_queue_.push_back(pending);
}
bool SyncMessageReplyDispatcher::HandleMessageType(const IPC::Message& msg,
const MessageSent& origin) {
return false;
}
bool SyncMessageReplyDispatcher::OnMessageReceived(const IPC::Message& msg) {
MessageSent origin;
if (!Pop(msg, &origin)) {
return false;
}
// No callback e.g. no return values and/or don't care
if (origin.callback == NULL)
return true;
return HandleMessageType(msg, origin);
}
void SyncMessageReplyDispatcher::Cancel(void* key) {
DCHECK(key != NULL);
AutoLock lock(message_queue_lock_);
PendingSyncMessageQueue::iterator it;
for (it = message_queue_.begin(); it != message_queue_.end(); ++it) {
if (it->key == key) {
it->key = NULL;
}
}
}
bool SyncMessageReplyDispatcher::Pop(const IPC::Message& msg, MessageSent* t) {
if (!msg.is_reply())
return false;
int id = IPC::SyncMessage::GetMessageId(msg);
AutoLock lock(message_queue_lock_);
PendingSyncMessageQueue::iterator it;
for (it = message_queue_.begin(); it != message_queue_.end(); ++it) {
if (it->id == id) {
*t = *it;
message_queue_.erase(it);
return true;
}
}
return false;
}
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