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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "RenderServer.h"
#include "TcpStream.h"
#ifdef _WIN32
#include "Win32PipeStream.h"
#else
#include "UnixStream.h"
#endif
#include "RenderThread.h"
#include "FrameBuffer.h"
#include <set>
typedef std::set<RenderThread *> RenderThreadsSet;
RenderServer::RenderServer() :
m_lock(),
m_listenSock(NULL),
m_exiting(false)
{
}
RenderServer::~RenderServer()
{
delete m_listenSock;
}
extern "C" int gRendererStreamMode;
RenderServer *RenderServer::create(char* addr, size_t addrLen)
{
RenderServer *server = new RenderServer();
if (!server) {
return NULL;
}
if (gRendererStreamMode == STREAM_MODE_TCP) {
server->m_listenSock = new TcpStream();
} else {
#ifdef _WIN32
server->m_listenSock = new Win32PipeStream();
#else
server->m_listenSock = new UnixStream();
#endif
}
char addrstr[SocketStream::MAX_ADDRSTR_LEN];
if (server->m_listenSock->listen(addrstr) < 0) {
ERR("RenderServer::create failed to listen\n");
delete server;
return NULL;
}
size_t len = strlen(addrstr) + 1;
if (len > addrLen) {
ERR("RenderServer address name too big for provided buffer: %zu > %zu\n",
len, addrLen);
delete server;
return NULL;
}
memcpy(addr, addrstr, len);
return server;
}
int RenderServer::Main()
{
RenderThreadsSet threads;
while(1) {
SocketStream *stream = m_listenSock->accept();
if (!stream) {
fprintf(stderr,"Error accepting connection, aborting\n");
break;
}
unsigned int clientFlags;
if (!stream->readFully(&clientFlags, sizeof(unsigned int))) {
fprintf(stderr,"Error reading clientFlags\n");
delete stream;
continue;
}
DBG("RenderServer: Got new stream!\n");
// check if we have been requested to exit while waiting on accept
if ((clientFlags & IOSTREAM_CLIENT_EXIT_SERVER) != 0) {
m_exiting = true;
break;
}
RenderThread *rt = RenderThread::create(stream, &m_lock);
if (!rt) {
fprintf(stderr,"Failed to create RenderThread\n");
delete stream;
stream = NULL;
} else if (!rt->start()) {
fprintf(stderr,"Failed to start RenderThread\n");
delete rt;
rt = NULL;
}
//
// remove from the threads list threads which are
// no longer running
//
for (RenderThreadsSet::iterator n,t = threads.begin();
t != threads.end();
t = n) {
// first find next iterator
n = t;
n++;
// delete and erase the current iterator
// if thread is no longer running
if ((*t)->isFinished()) {
delete (*t);
threads.erase(t);
}
}
// if the thread has been created and started, insert it to the list
if (rt) {
threads.insert(rt);
DBG("Started new RenderThread\n");
}
}
//
// Wait for all threads to finish
//
for (RenderThreadsSet::iterator t = threads.begin();
t != threads.end();
t++) {
int exitStatus;
(*t)->wait(&exitStatus);
delete (*t);
}
threads.clear();
//
// de-initialize the FrameBuffer object
//
FrameBuffer::finalize();
return 0;
}
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