From 3f2b4236e90534b3c2efb89121c64dbadc20794a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment?= <clement2104.boillot@gmail.com>
Date: Mon, 22 Apr 2024 16:07:11 +0200
Subject: [PATCH] feat: init parsing

---
 src/panoramix.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++-
 src/panoramix.h | 18 ++++++++++++++++++
 2 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/src/panoramix.c b/src/panoramix.c
index 5ef4643..5f3103d 100644
--- a/src/panoramix.c
+++ b/src/panoramix.c
@@ -7,9 +7,57 @@
 
 #include "panoramix.h"
 
+#include <bits/pthreadtypes.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "debug.h"
 #include "utils.h"
 
-int panoramix(UNUSED int argc, UNUSED char **argv)
+char HELP_MSG[] =
+    "USAGE:\n"
+    "\t./panoramix <nb_villagers> <pot_size> <nb_fights> <nb_refills>\n";
+
+static bool parse_args(int argc, char **argv, gaule_t *gaule)
+{
+    unsigned long *arr = (size_t *)gaule;
+
+    if (argc != 5) {
+        fprintf(stderr, "Invalid number of arguments\n");
+        fprintf(stderr, "%s", HELP_MSG);
+        return false;
+    }
+    for (int i = 1; i < argc; i++) {
+        char *ptr = argv[i];
+        long tmp = strtol(argv[i], &ptr, 10);
+        if (tmp <= 0 || *ptr != '\0') {
+            fprintf(stderr, "Invalid argument: %s\n", argv[i]);
+            fprintf(stderr, "%s", HELP_MSG);
+            return false;
+        }
+        arr[i - 1] = tmp;
+    }
+    DEBUG("nb_villagers: %lu", gaule->nb_villagers);
+    DEBUG("pot_size:     %lu", gaule->pot_size);
+    DEBUG("nb_fights:    %lu", gaule->nb_fights);
+    DEBUG("nb_refills:   %lu", gaule->nb_refills);
+    return true;
+}
+
+int panoramix(int argc, char **argv)
 {
+    gaule_t pano = {0};
+
+    if (!parse_args(argc, argv, &pano))
+        return Error;
+    pano.villagers = malloc(pano.nb_villagers * sizeof *pano.villagers);
+    if (pano.villagers == NULL) {
+        perror("malloc");
+        return Error;
+    }
+
+    free(pano.villagers);
     return Valid;
 }
diff --git a/src/panoramix.h b/src/panoramix.h
index 9a87386..9ef4d3b 100644
--- a/src/panoramix.h
+++ b/src/panoramix.h
@@ -7,4 +7,22 @@
 
 #pragma once
 
+#include <bits/pthreadtypes.h>
+
+typedef struct {
+    pthread_t thread;
+} villager_t;
+
+typedef struct {
+    // Those variables MUST NOT be moved in the structure
+    unsigned long nb_villagers;
+    unsigned long pot_size;
+    unsigned long nb_fights;
+    unsigned long nb_refills;
+
+    pthread_mutex_t mutex;
+    villager_t *villagers;
+    pthread_t tdruid;
+} gaule_t;
+
 int panoramix(int argc, char **argv);