From 183df35459ba77f735e63e04b385a7f71757daf3 Mon Sep 17 00:00:00 2001
From: Rodrigo Arias <rodrigo.arias@bsc.es>
Date: Fri, 20 Jan 2023 15:41:16 +0100
Subject: [PATCH] Use emu_args to parse input arguments

---
 src/emu/emu.c | 60 +++++++--------------------------------------------
 src/emu/emu.h |  5 ++---
 2 files changed, 10 insertions(+), 55 deletions(-)

diff --git a/src/emu/emu.c b/src/emu/emu.c
index e72fd25..14d1c4e 100644
--- a/src/emu/emu.c
+++ b/src/emu/emu.c
@@ -7,51 +7,6 @@
 
 #include <unistd.h>
 
-static char progname[] = "ovniemu";
-
-static void
-usage(void)
-{
-	err("Usage: %s [-c offsetfile] tracedir\n", progname);
-	err("\n");
-	err("Options:\n");
-	err("  -c offsetfile      Use the given offset file to correct\n");
-	err("                     the clocks among nodes. It can be\n");
-	err("                     generated by the ovnisync program\n");
-	err("\n");
-	err("  tracedir           The output trace dir generated by ovni.\n");
-	err("\n");
-	err("The output PRV files are placed in the tracedir directory.\n");
-
-	exit(EXIT_FAILURE);
-}
-
-static void
-parse_args(struct emu *emu, int argc, char *argv[])
-{
-	int opt;
-
-	while ((opt = getopt(argc, argv, "c:l")) != -1) {
-		switch (opt) {
-			case 'c':
-				emu->clock_offset_file = optarg;
-				break;
-			case 'l':
-				emu->enable_linter = 1;
-				break;
-			default: /* '?' */
-				usage();
-		}
-	}
-
-	if (optind >= argc) {
-		err("missing tracedir\n");
-		usage();
-	}
-
-	emu->tracedir = argv[optind];
-}
-
 int
 emu_model_register(struct emu *emu, struct model_spec *spec, void *ctx)
 {
@@ -76,19 +31,20 @@ int
 emu_init(struct emu *emu, int argc, char *argv[])
 {
 	memset(emu, 0, sizeof(*emu));
-	parse_args(emu, argc, argv);
 
-	/* Load the streams into the emu_trace */
-	if (emu_trace_load(&emu->trace, emu->tracedir) != 0) {
+	emu_args_init(&emu->args, argc, argv);
+
+	/* Load the streams into the trace */
+	if (emu_trace_load(&emu->trace, emu->args.tracedir) != 0) {
 		err("emu_init: cannot load trace '%s'\n",
-				emu->tracedir);
+				emu->args.tracedir);
 		return -1;
 	}
 
-	/* Parse the streams and build the emu_system */
-	if (emu_system_load(&emu->system, &emu->trace) != 0) {
+	/* Parse the trace and build the emu_system */
+	if (emu_system_init(&emu->system, &emu->args, &emu->trace) != 0) {
 		err("emu_init: cannot parse trace '%s'\n",
-				emu->tracedir);
+				emu->args.tracedir);
 		return -1;
 	}
 
diff --git a/src/emu/emu.h b/src/emu/emu.h
index e7dc062..8712946 100644
--- a/src/emu/emu.h
+++ b/src/emu/emu.h
@@ -7,6 +7,7 @@
 #include "bay.h"
 #include "pvtrace.h"
 #include "emu_trace.h"
+#include "emu_args.h"
 #include "emu_system.h"
 
 enum error_values {
@@ -31,10 +32,8 @@ struct model_spec {
 struct emu {
 	struct bay *bay;
 	struct pvman *pvman;
-	char *tracedir;
-	int enable_linter;
-	char *clock_offset_file;
 
+	struct emu_args args;
 	struct emu_trace trace;
 	struct emu_system system;