Siva Velusamy | db97468 | 2011-11-30 15:05:37 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011, The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <stdlib.h> |
| 18 | #include <unistd.h> |
| 19 | |
| 20 | #include <sys/socket.h> |
| 21 | #include <netinet/in.h> |
| 22 | #include <arpa/inet.h> |
| 23 | |
| 24 | #include <cutils/log.h> |
| 25 | |
| 26 | #include "gltrace_transport.h" |
| 27 | |
| 28 | namespace android { |
| 29 | namespace gltrace { |
| 30 | |
| 31 | int gServerSocket, gClientSocket; |
| 32 | |
| 33 | void startServer(int port) { |
| 34 | if (gServerSocket > 0) { |
| 35 | LOGD("startServer: server socket already open!"); |
| 36 | return; |
| 37 | } |
| 38 | |
| 39 | gServerSocket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); |
| 40 | if (gServerSocket < 0) { |
| 41 | LOGE("Error (%d) while creating socket. Check if app has network permissions.", |
| 42 | gServerSocket); |
| 43 | exit(-1); |
| 44 | } |
| 45 | |
| 46 | struct sockaddr_in server, client; |
| 47 | |
| 48 | server.sin_family = AF_INET; |
| 49 | server.sin_addr.s_addr = htonl(INADDR_ANY); |
| 50 | server.sin_port = htons(port); |
| 51 | |
| 52 | socklen_t sockaddr_len = sizeof(sockaddr_in); |
| 53 | if (bind(gServerSocket, (struct sockaddr *) &server, sizeof(server)) < 0) { |
| 54 | close(gServerSocket); |
| 55 | LOGE("Failed to bind the server socket"); |
| 56 | exit(-1); |
| 57 | } |
| 58 | |
| 59 | if (listen(gServerSocket, 1) < 0) { |
| 60 | close(gServerSocket); |
| 61 | LOGE("Failed to listen on server socket"); |
| 62 | exit(-1); |
| 63 | } |
| 64 | |
| 65 | LOGD("startServer: server started on %d", port); |
| 66 | |
| 67 | /* Wait for client connection */ |
| 68 | if ((gClientSocket = accept(gServerSocket, (struct sockaddr *)&client, &sockaddr_len)) < 0) { |
| 69 | close(gServerSocket); |
| 70 | LOGE("Failed to accept client connection"); |
| 71 | exit(-1); |
| 72 | } |
| 73 | |
| 74 | LOGD("startServer: client connected: %s", inet_ntoa(client.sin_addr)); |
| 75 | } |
| 76 | |
| 77 | void stopServer() { |
| 78 | if (gServerSocket > 0) { |
| 79 | close(gServerSocket); |
| 80 | close(gClientSocket); |
| 81 | gServerSocket = gClientSocket = 0; |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | /** Send GLMessage to the receiver on the host. */ |
| 86 | void traceGLMessage(GLMessage *call) { |
| 87 | if (gClientSocket <= 0) { |
| 88 | LOGE("traceGLMessage: Attempt to send while client connection is not established"); |
| 89 | return; |
| 90 | } |
| 91 | |
| 92 | std::string str; |
| 93 | call->SerializeToString(&str); |
| 94 | const uint32_t len = str.length(); |
| 95 | |
| 96 | int n = write(gClientSocket, &len, sizeof len); |
| 97 | if (n != sizeof len) { |
| 98 | LOGE("traceGLMessage: Error (%d) while writing message length\n", n); |
| 99 | stopServer(); |
| 100 | exit(-1); |
| 101 | } |
| 102 | |
| 103 | n = write(gClientSocket, str.data(), str.length()); |
| 104 | if (n != (int) str.length()) { |
| 105 | LOGE("traceGLMessage: Error while writing out message, result = %d, length = %d\n", |
| 106 | n, str.length()); |
| 107 | stopServer(); |
| 108 | exit(-1); |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | }; // namespace gltrace |
| 113 | }; // namespace android |