| /* |
| * 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) { |
| LOGD("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); |
| } |
| |
| LOGD("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); |
| } |
| |
| LOGD("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 |