1 /* Copyright (c) 2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include <sys/types.h>
12 #include <sys/socket.h>
15 #include <xbt/sysdep.h>
17 #include "mc_protocol.h"
18 #include "mc_client.h"
20 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_client, mc, "MC client logic");
22 typedef struct s_mc_client {
25 } s_mc_client_t, mc_client_t;
27 static s_mc_client_t mc_client;
29 void MC_client_init(void)
33 char* fd_env = getenv(MC_ENV_SOCKET_FD);
35 xbt_die("MC socket not found");
37 int fd = atoi(fd_env);
38 XBT_DEBUG("Model-checked application found socket FD %i", fd);
41 socklen_t socklen = sizeof(type);
42 if (getsockopt(fd, SOL_SOCKET, SO_TYPE, &type, &socklen) != 0)
43 xbt_die("Could not check socket type: %s", strerror(errno));
44 if (type != SOCK_DGRAM)
45 xbt_die("Unexpected socket type %i", type);
46 XBT_DEBUG("Model-checked application found expected socket type");
51 void MC_client_hello(void)
53 XBT_DEBUG("Greeting the MC server");
54 if (MC_protocol_hello(mc_client.fd) != 0)
55 xbt_die("Could not say hello the MC server");
56 XBT_DEBUG("Greeted the MC server");
59 void MC_client_handle_messages(void)
62 XBT_DEBUG("Waiting messages from model-checker");
63 s_mc_message_t message;
64 if (recv(mc_client.fd, &message, sizeof(message), 0) == -1)
65 xbt_die("Could not receive commands from the model-checker: %s",
67 XBT_DEBUG("Receive message from model-checker");
68 switch (message.type) {
69 case MC_MESSAGE_CONTINUE:
72 xbt_die("Unexpected message from model-checker %i", message.type);