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/*
* Copyright 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 <stdlib.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <cutils/log.h>
#include "gltrace_transport.h"
namespace android {
namespace gltrace {
int gServerSocket, gClientSocket;
void startServer(int port) {
if (gServerSocket > 0) {
ALOGD("startServer: server socket already open!");
return;
}
gServerSocket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (gServerSocket < 0) {
LOGE("Error (%d) while creating socket. Check if app has network permissions.",
gServerSocket);
exit(-1);
}
struct sockaddr_in server, client;
server.sin_family = AF_INET;
server.sin_addr.s_addr = htonl(INADDR_ANY);
server.sin_port = htons(port);
socklen_t sockaddr_len = sizeof(sockaddr_in);
if (bind(gServerSocket, (struct sockaddr *) &server, sizeof(server)) < 0) {
close(gServerSocket);
LOGE("Failed to bind the server socket");
exit(-1);
}
if (listen(gServerSocket, 1) < 0) {
close(gServerSocket);
LOGE("Failed to listen on server socket");
exit(-1);
}
ALOGD("startServer: server started on %d", port);
/* Wait for client connection */
if ((gClientSocket = accept(gServerSocket, (struct sockaddr *)&client, &sockaddr_len)) < 0) {
close(gServerSocket);
LOGE("Failed to accept client connection");
exit(-1);
}
ALOGD("startServer: client connected: %s", inet_ntoa(client.sin_addr));
}
void stopServer() {
if (gServerSocket > 0) {
close(gServerSocket);
close(gClientSocket);
gServerSocket = gClientSocket = 0;
}
}
/** Send GLMessage to the receiver on the host. */
void traceGLMessage(GLMessage *call) {
if (gClientSocket <= 0) {
LOGE("traceGLMessage: Attempt to send while client connection is not established");
return;
}
std::string str;
call->SerializeToString(&str);
const uint32_t len = str.length();
int n = write(gClientSocket, &len, sizeof len);
if (n != sizeof len) {
LOGE("traceGLMessage: Error (%d) while writing message length\n", n);
stopServer();
exit(-1);
}
n = write(gClientSocket, str.data(), str.length());
if (n != (int) str.length()) {
LOGE("traceGLMessage: Error while writing out message, result = %d, length = %d\n",
n, str.length());
stopServer();
exit(-1);
}
}
}; // namespace gltrace
}; // namespace android
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