3 * @brief main and its helper functions, signal handling and cleanup functions
6 // --- Custom headers --- //
13 #include "bbb_pin_defines.h"
15 // --- Standard headers --- //
16 #include <syslog.h> // for system logging
17 #include <signal.h> // for signal handling
19 // --- Variable definitions --- //
20 Options g_options; // options passed to program through command line arguments
22 // --- Function definitions --- //
25 * Parse command line arguments, initialise g_options
26 * @param argc - Number of arguments
27 * @param argv - Array of argument strings
29 void ParseArguments(int argc, char ** argv)
33 g_options.program = argv[0]; // program name
34 g_options.verbosity = LOGDEBUG; // default log level
35 gettimeofday(&(g_options.start_time), NULL); // Start time
38 g_options.auth_method = AUTH_NONE; // Don't use authentication
39 g_options.auth_uri = ""; //
40 g_options.ldap_base_dn = "";
44 for (int i = 1; i < argc; ++i)
46 if (argv[i][0] != '-')
47 Fatal("Unexpected argv[%d] - %s", i, argv[i]);
49 if (i+1 >= argc || argv[i+1][0] == '-')
50 Fatal("No argument following switch %s", argv[i]);
52 if (strlen(argv[i]) > 2)
53 Fatal("Human readable switches are not supported.");
58 // Set program verbosity
60 g_options.verbosity = strtol(argv[++i], &end, 10);
62 // Enable/Disable pin test
64 g_options.enable_pin = !(strtol(argv[++i], &end, 10));
68 g_options.auth_uri = argv[++i];
72 g_options.ldap_base_dn = argv[++i];
75 Fatal("Unrecognised switch %s", argv[i]);
79 if (end != NULL && *end != '\0')
80 Fatal("argv[%d] -%c requires an integer (got \"%s\" instead)", i-1, argv[i-1][0], argv[i]);
83 Log(LOGDEBUG, "Verbosity: %d", g_options.verbosity);
84 Log(LOGDEBUG, "Pin Module Enabled: %d", g_options.enable_pin);
85 Log(LOGDEBUG, "Auth URI: %s", g_options.auth_uri);
86 Log(LOGDEBUG, "LDAP Base DN: %s", g_options.ldap_base_dn);
88 if (g_options.auth_uri[0] != '\0')
91 if (PathExists(g_options.auth_uri))
92 g_options.auth_method = AUTH_SHADOW;
94 g_options.auth_method = AUTH_LDAP;
101 * @param signal - The signal number
103 //TODO: Something that gets massively annoying with threads is that you can't predict which one gets the signal
104 // There are ways to deal with this, but I can't remember them
105 // Probably sufficient to just call Thread_QuitProgram here
106 void SignalHandler(int signal)
108 // At the moment just always exit.
109 // Call `exit` so that Cleanup will be called to... clean up.
110 Log(LOGWARN, "Got signal %d (%s). Exiting.", signal, strsignal(signal));
116 * Cleanup before the program exits
120 Log(LOGDEBUG, "Begin cleanup.");
121 Log(LOGDEBUG, "Finish cleanup.");
126 * Main entry point; start worker threads, setup signal handling, wait for threads to exit, exit
127 * @param argc - Num args
129 * @returns 0 on success, error code on failure
130 * NOTE: NEVER USE exit(3)! Instead call Thread_QuitProgram
132 int main(int argc, char ** argv)
134 // Open log before calling ParseArguments (since ParseArguments may call the Log functions)
135 openlog("mctxserv", LOG_PID | LOG_PERROR, LOG_USER);
136 Log(LOGINFO, "Server started");
138 ParseArguments(argc, argv);
140 //Open the system log
143 //TODO: Make this work
145 int signals[] = {SIGINT, SIGSEGV, SIGTERM};
146 for (int i = 0; i < sizeof(signals)/sizeof(int); ++i)
148 signal(signals[i], SignalHandler);
154 //Sensor_StartAll("test");
155 //Actuator_StartAll("test");
157 if ((ret = Control_SetMode(CONTROL_START, "test")) != NULL)
158 Fatal("Control_SetMode failed with '%s'", ret);
160 // run request thread in the main thread
161 FCGI_RequestLoop(NULL);
163 if ((ret = Control_SetMode(CONTROL_STOP, "test")) != NULL)
164 Fatal("Control_SetMode failed with '%s'", ret);
166 //Actuator_StopAll();