add examples

example/demo.c

@@ -0,0 +1,61 @@
+#include "../src/log.h"
+#include <pthread.h>
+#include <signal.h>
+
+bool s_stop = false;
+pthread_mutex_t MUTEX_LOG;
+void log_lock(bool lock, void *udata);
+
+void log_lock(bool lock, void* udata) {
+    pthread_mutex_t *LOCK = (pthread_mutex_t*)(udata);
+    if (lock)
+        pthread_mutex_lock(LOCK);
+    else
+        pthread_mutex_unlock(LOCK);
+}
+
+void run(void *arg) {
+    int id = *(int*)arg;
+    log_debug("+++++id: %d", id);
+    unsigned int idx = 0;
+    for (;;) {
+    	log_debug("thread id: %d idx:%u", id, idx++);
+	    usleep(1000 * 100);
+	    if (s_stop) break;
+    }
+}
+
+void stop(int signo) {
+    (void)signo;
+    s_stop = true;
+}
+
+int main() {
+    pthread_mutex_init(&MUTEX_LOG, NULL);
+    log_set_lock(log_lock, &MUTEX_LOG);
+
+    FILE* fp = fopen ("demo.log", "a+");
+    log_set_quiet(true);
+    log_set_level(LOG_DEBUG);
+    log_set_fullpath(false);
+    log_add_fp(fp, LOG_DEBUG);
+
+    signal(SIGINT, stop);
+    signal(SIGKILL, stop); 
+    signal(SIGTERM, stop);
+
+    pthread_t h[8];
+    int id_array[8] = {0,1,2,3,4,5,6,7};
+    for (int i= 0; i<8; i++) {
+        pthread_create(&h[i], NULL, run, &id_array[i]);
+    }
+
+    void* ret[8] = {NULL};
+    for (int i=0; i<8; i++) {
+        pthread_join(h[i], &ret);
+    }
+
+    pthread_mutex_destroy(&MUTEX_LOG);
+
+    fclose(fp);
+}