Fixed thread example

samples/threading/main.c

@@ -1,12 +1,12 @@
 #include "log.h"
 #include <pthread.h>
 #include <signal.h>
+#include <unistd.h>
 
 static bool s_stop = false;
 pthread_mutex_t MUTEX_LOG;
 
-void log_lock(bool lock, void *mutex);
-
+// Mutex lock function for log module
 void log_lock(bool lock, void* mutex) {
     pthread_mutex_t *LOCK = (pthread_mutex_t*)(mutex);
 
@@ -20,7 +20,8 @@ void log_lock(bool lock, void* mutex) {
     }
 }
 
-void run(void *arg) {
+// Thread runner function
+void* run(void *arg) {
     // Retrieve this thread's id
     int id = *(int*)arg;
 
@@ -37,8 +38,11 @@ void run(void *arg) {
 
 	    if (s_stop) { break; }
     }
+
+    return 0;
 }
 
+// Signal catcher
 void stop(int signo) {
     (void)signo;
     s_stop = true;
@@ -53,30 +57,32 @@ int main() {
 
     FILE* fp = fopen ("./demo.log", "a+");
 
-    log_set_level(LOG_DEBUG);
-    log_add_fp(fp, LOG_DEBUG);
+    log_set_level(LOGC_DEBUG);
+    log_add_fp(fp, LOGC_DEBUG);
 
     // Redirect signals to stop() fucntion
     signal(SIGINT, stop);
     signal(SIGKILL, stop); 
     signal(SIGTERM, stop);
 
-    pthread_t h[8];
+    pthread_t thread_handles[8];
     int id_array[8] = {0,1,2,3,4,5,6,7};
 
     // Create 8 threads, each passing their id as parameter
     for (int i= 0; i<8; i++) {
-        pthread_create(&h[i], NULL, run, &id_array[i]);
+        pthread_create(&thread_handles[i], NULL, run, &id_array[i]);
     }
 
-    void* ret[8] = {NULL};
+    void* thread_retvals[8] = {NULL};
 
     // Start threads
     for (int i=0; i<8; i++) {
-        pthread_join(h[i], &ret);
+        pthread_join(thread_handles[i], &thread_retvals[i]);
     }
 
     pthread_mutex_destroy(&MUTEX_LOG);
 
     fclose(fp);
+
+    return 0;
 }

src/log.h

@@ -24,7 +24,9 @@ extern "C"
     #include "log_conf.h"
 #endif
 
-#define LOGC_VERSION "0.1.1"
+#define LOGC_VERSION_MAJOR 0U
+#define LOGC_VERSION_MINOR 2U
+#define LOGC_VERSION_TEST  0U
 
 /// @brief Log event struct
 typedef struct