1 /******************************************************************************
3 Copyright (c) 2012, Intel Corporation
4 Copyright (c) 2012, AudioScience, Inc
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
10 1. Redistributions of source code must retain the above copyright notice,
11 this list of conditions and the following disclaimer.
13 2. Redistributions in binary form must reproduce the above copyright
14 notice, this list of conditions and the following disclaimer in the
15 documentation and/or other materials provided with the distribution.
17 3. Neither the name of the Intel Corporation nor the names of its
18 contributors may be used to endorse or promote products derived from
19 this software without specific prior written permission.
21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
25 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 POSSIBILITY OF SUCH DAMAGE.
33 ******************************************************************************/
43 typedef int socklen_t;
44 static int rcv_timeout = 100; /* 100 ms */
45 #elif defined __linux__
47 #include <sys/socket.h>
48 #include <netinet/in.h>
49 #include <arpa/inet.h>
51 #define INVALID_SOCKET -1
52 #define SOCKET_ERROR -1
53 #define closesocket(s) close(s);
54 static struct timeval rcv_timeout = {
56 .tv_usec = 100 * 1000 /* 100 ms */
60 #include "mrpdclient.h"
62 /* global variables */
63 static SOCKET control_socket = SOCKET_ERROR;
64 static int udp_port = 0;
66 int mrpdclient_init(int port)
68 struct sockaddr_in addr;
71 control_socket = socket(AF_INET, SOCK_DGRAM, 0);
72 if (control_socket == INVALID_SOCKET)
75 rc = setsockopt(control_socket, SOL_SOCKET, SO_RCVTIMEO,
76 (const char *)&rcv_timeout, sizeof(rcv_timeout));
79 rc = setsockopt(control_socket, SOL_SOCKET, SO_SNDTIMEO,
80 (const char *)&rcv_timeout, sizeof(rcv_timeout));
84 memset(&addr, 0, sizeof(addr));
85 addr.sin_family = AF_INET;
86 addr.sin_port = htons(0);
88 rc = bind(control_socket, (struct sockaddr *)&addr,
89 sizeof(struct sockaddr));
90 if (rc <= SOCKET_ERROR)
97 if (control_socket != SOCKET_ERROR)
98 closesocket(control_socket);
99 control_socket = SOCKET_ERROR;
103 int mprdclient_close(void)
105 if (control_socket != SOCKET_ERROR)
106 closesocket(control_socket);
110 int mrpdclient_recv(ptr_process_msg fn)
115 msgbuf = (char *)malloc(MRPDCLIENT_MAX_FRAME_SIZE);
119 memset(msgbuf, 0, MRPDCLIENT_MAX_FRAME_SIZE);
120 bytes = recv(control_socket, msgbuf, MRPDCLIENT_MAX_FRAME_SIZE, 0);
121 if (bytes <= SOCKET_ERROR) {
125 return fn(msgbuf, bytes);
131 int mprdclient_sendto(char *notify_data, int notify_len)
133 struct sockaddr_in addr;
136 memset(&addr, 0, sizeof(addr));
137 addr.sin_family = AF_INET;
138 addr.sin_port = htons(udp_port);
139 addr.sin_addr.s_addr = inet_addr("127.0.0.1");
140 addr_len = sizeof(addr);
142 if (control_socket != SOCKET_ERROR)
144 (control_socket, notify_data, notify_len, 0,
145 (struct sockaddr *)&addr, addr_len));