Remove HTTP server, get ready to write basic threaded program

[matches/MCTX3420.git] / rpi / main.c

diff --git a/rpi/main.c b/rpi/main.c
new file mode 100644 (file)
index 0000000..23ef071
--- /dev/null
+++ b/rpi/main.c
@@ -0,0 +1,62 @@
+/**
+ * @file main.c
+ * @purpose Entry point to the program, starts threads, handles cleanup on program exit
+ */
+
+// --- Standard headers --- //
+#include <stdlib.h>
+#include <stdio.h>
+#include <signal.h> // for signal handling
+
+// --- Custom headers --- //
+#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
+ */
+void ParseArguments(int argc, char ** argv, Options * opts)
+{
+       options.program = argv[0]; // program name
+       options.verbosity = LOGDEBUG; // default log level
+       if (argc > 1)
+               options.port = atoi(argv[1]); // Allow us change the port for testing (I keep getting "address in use" errors)
+       else
+               options.port = 8080; // Using 8080 instead of 80 for now because to use 80 you have to run the program as root
+
+       Log(LOGDEBUG, "ParseArguments", "Called as %s with %d arguments.", options.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);
+}
+
+/**
+ * @funct Cleanup
+ * @purpose Called when program exits
+ */
+void Cleanup()
+{
+       Log(LOGDEBUG, "Cleanup", "Begin cleanup.");
+       Log(LOGDEBUG, "Cleanup", "Finish cleanup.");
+
+}
+
+