4e6af749d5
The modules here are only built when BUILD_EMULATOR_OPENGL is defined to true in your environment or your BoardConfig.mk (see tools/emulator/opengl/Android.mk) Change-Id: I5f32c35b4452fb5a7b4d5f9fc5870ec1da6032e6
138 lines
3.5 KiB
C++
138 lines
3.5 KiB
C++
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "UnixStream.h"
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#include <cutils/sockets.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <sys/un.h>
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#include <sys/stat.h>
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/* Not all systems define PATH_MAX, those who don't generally don't
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* have a limit on the maximum path size, so use a value that is
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* large enough for our very limited needs.
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*/
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#ifndef PATH_MAX
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#define PATH_MAX 128
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#endif
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UnixStream::UnixStream(size_t bufSize) :
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SocketStream(bufSize)
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{
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}
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UnixStream::UnixStream(int sock, size_t bufSize) :
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SocketStream(sock, bufSize)
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{
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}
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/* Initialize a sockaddr_un with the appropriate values corresponding
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* to a given 'virtual port'. Returns 0 on success, -1 on error.
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*/
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static int
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make_unix_path(char *path, size_t pathlen, int port_number)
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{
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char tmp[PATH_MAX]; // temp directory
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int ret = 0;
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// First, create user-specific temp directory if needed
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const char* user = getenv("USER");
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if (user != NULL) {
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struct stat st;
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snprintf(tmp, sizeof(tmp), "/tmp/android-%s", user);
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do {
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ret = ::lstat(tmp, &st);
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} while (ret < 0 && errno == EINTR);
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if (ret < 0 && errno == ENOENT) {
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do {
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ret = ::mkdir(tmp, 0766);
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} while (ret < 0 && errno == EINTR);
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if (ret < 0) {
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ERR("Could not create temp directory: %s", tmp);
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user = NULL; // will fall-back to /tmp
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}
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}
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else if (ret < 0) {
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user = NULL; // will fallback to /tmp
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}
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}
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if (user == NULL) { // fallback to /tmp in case of error
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snprintf(tmp, sizeof(tmp), "/tmp");
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}
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// Now, initialize it properly
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snprintf(path, pathlen, "%s/qemu-gles-%d", tmp, port_number);
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return 0;
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}
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int UnixStream::listen(unsigned short port)
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{
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char path[PATH_MAX];
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if (make_unix_path(path, sizeof(path), port) < 0) {
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return -1;
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}
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m_sock = socket_local_server(path, ANDROID_SOCKET_NAMESPACE_FILESYSTEM, SOCK_STREAM);
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if (!valid()) return int(ERR_INVALID_SOCKET);
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return 0;
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}
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SocketStream * UnixStream::accept()
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{
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int clientSock = -1;
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while (true) {
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struct sockaddr_un addr;
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socklen_t len = sizeof(addr);
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clientSock = ::accept(m_sock, (sockaddr *)&addr, &len);
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if (clientSock < 0 && errno == EINTR) {
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continue;
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}
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break;
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}
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UnixStream *clientStream = NULL;
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if (clientSock >= 0) {
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clientStream = new UnixStream(clientSock, m_bufsize);
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}
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return clientStream;
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}
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int UnixStream::connect(unsigned short port)
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{
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char path[PATH_MAX];
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if (make_unix_path(path, sizeof(path), port) < 0)
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return -1;
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m_sock = socket_local_client(path, ANDROID_SOCKET_NAMESPACE_FILESYSTEM, SOCK_STREAM);
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if (!valid()) return -1;
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return 0;
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}
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