Free up allocated objects upon early exit

src/dw_main.c

@@ -91,6 +91,14 @@
 #include "dw_phases.h"
 
 static int hook(void* info, const char* s);
+void free_objects(	subprob_struct* sub_data,
+	faux_globals* globals,
+	master_data* md,
+	int* ind,
+	double* val,
+	pthread_t* threads,
+	glp_smcp* simplex_control_params,
+	char* local_buffer);
 
 /* See process_cmdline() in support_functions.c for parameters passed to main.
  */
@@ -127,16 +135,35 @@ int main(int argc, char* argv[]) {
 
 	/* Process the command line. */
 	rc = process_cmdline(argc, argv, globals);
-	if( rc == 1 ) {
-		dw_printf(IMPORTANCE_VITAL,
-				"Something wrong with command line, exiting.\n");
-		return 1;
+
+	/* Non-zero indicates we shouldn't go on. If it was 2, we printed 'help' message. 
+		If some other non-zero, then there was a problem. In either case, free up
+		allocated memory.  */
+	if( rc != 0 ) {
+		free_objects(
+			sub_data,
+			globals,
+			md,
+			ind,
+			val,
+			threads,
+			simplex_control_params,
+			local_buffer
+		);
+		if( rc != 2 ) {
+			dw_printf(IMPORTANCE_VITAL, "Something wrong with command line, exiting.\n");
+			return 1;
+		}
+		else return 0;
 	}
-	else if( rc == 2 ) {
+
+	if( rc == 2 ) { /* Help flag was sent in, printed help, now exit. */
+
 		return 0;
 	}
-	else if( rc != 0 ) {
-		return rc;
+	else if( rc != 0  ) { /* Something actually wrong, exit. */
+		dw_printf(IMPORTANCE_VITAL, "Something wrong with command line, exiting.\n");
+		return 1;
 	}
 
 	dw_printf(IMPORTANCE_AVG,"@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");
@@ -815,6 +842,29 @@ int main(int argc, char* argv[]) {
 	return 0;
 }
 
+void free_objects(
+	subprob_struct* sub_data,
+	faux_globals* globals,
+	master_data* md,
+	int* ind,
+	double* val,
+	pthread_t* threads,
+	glp_smcp* simplex_control_params,
+	char* local_buffer
+) {
+	/* Clean up after ourselves. */
+	free_sub_data(sub_data, globals);
+	free_globals(globals, md);
+	free(globals);
+	free(ind);
+	free(val);
+	free(threads);
+	free(simplex_control_params);
+	free(local_buffer);
+	return;
+}
+
+
 /* The function that glp_term_hook uses to redirect terminal output */
 static int hook(void* info, const char* s) {
 	FILE* outfile = info;