1/*
2 * Copyright 2008, The Android Open Source Project
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *  * Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 *  * Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef Connection_h
27#define Connection_h
28
29#include <unistd.h>
30#include <sys/socket.h>
31
32namespace android {
33
34namespace WDS {
35
36class Socket {
37public:
38    Socket(): m_fd(-1) {}
39    Socket(int fd): m_fd(fd) {}
40    ~Socket() {
41        if (m_fd != -1) {
42            shutdown(m_fd, SHUT_RDWR);
43            close(m_fd);
44        }
45    }
46    // Open a new socket using PF_INET and SOCK_STREAM
47    bool open();
48    int fd() const { return m_fd; }
49private:
50    int m_fd;
51};
52
53class Connection {
54public:
55    Connection(int conn): m_socket(conn) {}
56    int read(char buf[], size_t length) const {
57        return recv(m_socket.fd(), buf, length, 0);
58    }
59    int write(const char buf[], size_t length) const {
60        return send(m_socket.fd(), buf, length, 0);
61    }
62    int write(const char buf[]) const {
63        return write(buf, strlen(buf));
64    }
65private:
66    Socket m_socket;
67};
68
69class ConnectionServer {
70public:
71    ConnectionServer() {}
72
73    // Establish a connection to the local host on the given port.
74    bool connect(short port);
75
76    // Blocks on the established socket until a new connection arrives.
77    Connection* accept() const;
78private:
79    Socket m_socket;
80};
81
82} // end namespace WDS
83
84} // end namespace android
85
86#endif
87