/**
* @file main.c
- * @purpose Entry point to the program, starts threads, handles cleanup on program exit
+ * @brief main and its helper functions, signal handling and cleanup functions
*/
-#define _POSIX_C_SOURCE 200809L // For strsignal to work
+// --- Custom headers --- //
+#include "common.h"
+#include "options.h"
+#include "sensor.h"
+#include "actuator.h"
+#include "control.h"
+#include "pin_test.h"
+#include "bbb_pin_defines.h"
// --- Standard headers --- //
-#include <stdlib.h>
-#include <stdio.h>
+#include <syslog.h> // for system logging
#include <signal.h> // for signal handling
-#include <string.h> // string functions
-#include <pthread.h>
-// --- Custom headers --- //
-#include "log.h"
-#include "options.h"
// --- Variable definitions --- //
Options g_options; // options passed to program through command line arguments
// --- Function definitions --- //
/**
- * @funct ParseArguments
- * @purpose Parse command line arguments, set up an options variable
- * @param argc - Num args
- * @param argv - Array of args
- * @param opts - Pointer to options. &g_options
+ * Parse command line arguments, initialise g_options
+ * @param argc - Number of arguments
+ * @param argv - Array of argument strings
*/
-void ParseArguments(int argc, char ** argv, Options * opts)
+void ParseArguments(int argc, char ** argv)
{
- opts->program = argv[0]; // program name
- opts->verbosity = LOGDEBUG; // default log level
- Log(LOGDEBUG, "ParseArguments", "Called as %s with %d arguments.", opts->program, argc);
-}
-/**
- * @funct SignalHandler
- * @purpose Handle signals
- * @param sig - The signal
- */
-void SignalHandler(int sig)
-{
- // At the moment just always exit.
- // Call `exit` so that Cleanup will be called to... clean up.
- Log(LOGWARN, "SignalHandler", "Got signal %d (%s). Exiting.", sig, strsignal(sig));
- exit(sig);
+
+ g_options.program = argv[0]; // program name
+ g_options.verbosity = LOGDEBUG; // default log level
+ gettimeofday(&(g_options.start_time), NULL); // Start time
+
+
+ g_options.auth_method = AUTH_NONE; // Don't use authentication
+ g_options.auth_uri = ""; //
+ g_options.ldap_base_dn = "";
+
+
+
+ for (int i = 1; i < argc; ++i)
+ {
+ if (argv[i][0] != '-')
+ Fatal("Unexpected argv[%d] - %s", i, argv[i]);
+
+ if (i+1 >= argc || argv[i+1][0] == '-')
+ Fatal("No argument following switch %s", argv[i]);
+
+ if (strlen(argv[i]) > 2)
+ Fatal("Human readable switches are not supported.");
+
+ char * end = NULL;
+ switch (argv[i][1])
+ {
+ // Set program verbosity
+ case 'v':
+ g_options.verbosity = strtol(argv[++i], &end, 10);
+ break;
+ // Enable/Disable pin test
+ case 'p':
+ g_options.enable_pin = !(strtol(argv[++i], &end, 10));
+ break;
+ // LDAP URI
+ case 'A':
+ g_options.auth_uri = argv[++i];
+ break;
+ // LDAP DN
+ case 'd':
+ g_options.ldap_base_dn = argv[++i];
+ break;
+ default:
+ Fatal("Unrecognised switch %s", argv[i]);
+ break;
+ }
+
+ if (end != NULL && *end != '\0')
+ Fatal("argv[%d] -%c requires an integer (got \"%s\" instead)", i-1, argv[i-1][0], argv[i]);
+ }
+
+ Log(LOGDEBUG, "Verbosity: %d", g_options.verbosity);
+ Log(LOGDEBUG, "Pin Module Enabled: %d", g_options.enable_pin);
+ Log(LOGDEBUG, "Auth URI: %s", g_options.auth_uri);
+ Log(LOGDEBUG, "LDAP Base DN: %s", g_options.ldap_base_dn);
+
+ if (g_options.auth_uri[0] != '\0')
+ {
+ //HACK...
+ if (PathExists(g_options.auth_uri))
+ g_options.auth_method = AUTH_SHADOW;
+ else
+ g_options.auth_method = AUTH_LDAP;
+ }
+
}
/**
- * @funct Cleanup
- * @purpose Called when program exits
+ * Cleanup before the program exits
*/
void Cleanup()
{
- Log(LOGDEBUG, "Cleanup", "Begin cleanup.");
- Log(LOGDEBUG, "Cleanup", "Finish cleanup.");
-
+ Log(LOGDEBUG, "Begin cleanup.");
+ Sensor_Cleanup();
+ //Actuator_Cleanup();
+ Log(LOGDEBUG, "Finish cleanup.");
}
/**
- * @funct main
- * @purpose Main entry point; start worker threads, setup signal handling, wait for threads to exit, exit
+ * Main entry point; start worker threads, setup signal handling, wait for threads to exit, exit
* @param argc - Num args
* @param argv - Args
* @returns 0 on success, error code on failure
+ * NOTE: NEVER USE exit(3)! Instead call Thread_QuitProgram
*/
int main(int argc, char ** argv)
{
+ // Open log before calling ParseArguments (since ParseArguments may call the Log functions)
+ openlog("mctxserv", LOG_PID | LOG_PERROR, LOG_USER);
+ Log(LOGINFO, "Server started");
+
+ ParseArguments(argc, argv); // Setup the g_options structure from program arguments
+
+ Sensor_Init();
+ Actuator_Init();
+ Pin_Init();
+
+ // Try and start things
+ /*
+ const char *ret;
+ if ((ret = Control_SetMode(CONTROL_START, "test")) != NULL)
+ Fatal("Control_SetMode failed with '%s'", ret);
+ */
+
+ // run request thread in the main thread
+ FCGI_RequestLoop(NULL);
+
+ /*
+ if ((ret = Control_SetMode(CONTROL_STOP, "test")) != NULL)
+ Fatal("Control_SetMode failed with '%s'", ret);
+ */
+ //Sensor_StopAll();
+ //Actuator_StopAll();
+
+ Pin_Close();
+
+ Cleanup();
return 0;
}