[example] 格式化整理

1 files changed, 60 insertions, 60 deletions

diff --git a/examples/libc/ex7.c b/examples/libc/ex7.c
index 859d18e7bd..e6473d48c2 100644
--- a/examples/libc/ex7.c
+++ b/examples/libc/ex7.c
@@ -14,88 +14,88 @@
 
 /* Our event variable using a condition variable contruct. */
 typedef struct {
-	pthread_mutex_t mutex;
-	pthread_cond_t cond;
-	int flag;
+    pthread_mutex_t mutex;
+    pthread_cond_t cond;
+    int flag;
 } event_t;
 
 /* Global event to signal main thread the timeout of the child thread. */
 event_t main_event;
 
 static void *test_thread(void *ms_param) {
-	int status = 0;
-	event_t foo;
-	struct timespec time;
-	struct timeval now;
-	long ms = (long) ms_param;
+    int status = 0;
+    event_t foo;
+    struct timespec time;
+    struct timeval now;
+    long ms = (long) ms_param;
 
-	/* initialize cond var */
-	pthread_cond_init(&foo.cond, NULL);
-	pthread_mutex_init(&foo.mutex, NULL);
-	foo.flag = 0;
+    /* initialize cond var */
+    pthread_cond_init(&foo.cond, NULL);
+    pthread_mutex_init(&foo.mutex, NULL);
+    foo.flag = 0;
 
-	/* set the time out value */
-	printf("waiting %ld ms ...\n", ms);
-	gettimeofday(&now, NULL);
-	time.tv_sec = now.tv_sec + ms / 1000 + (now.tv_usec + (ms % 1000) * 1000)
-			/ 1000000;
-	time.tv_nsec = ((now.tv_usec + (ms % 1000) * 1000) % 1000000) * 1000;
+    /* set the time out value */
+    printf("waiting %ld ms ...\n", ms);
+    gettimeofday(&now, NULL);
+    time.tv_sec = now.tv_sec + ms / 1000 + (now.tv_usec + (ms % 1000) * 1000)
+            / 1000000;
+    time.tv_nsec = ((now.tv_usec + (ms % 1000) * 1000) % 1000000) * 1000;
 
-	/* Just use this to test the time out. The cond var is never signaled. */
-	pthread_mutex_lock(&foo.mutex);
-	while (foo.flag == 0 && status != ETIMEDOUT) {
-		status = pthread_cond_timedwait(&foo.cond, &foo.mutex, &time);
-	}
-	pthread_mutex_unlock(&foo.mutex);
+    /* Just use this to test the time out. The cond var is never signaled. */
+    pthread_mutex_lock(&foo.mutex);
+    while (foo.flag == 0 && status != ETIMEDOUT) {
+        status = pthread_cond_timedwait(&foo.cond, &foo.mutex, &time);
+    }
+    pthread_mutex_unlock(&foo.mutex);
 
-	/* post the main event */
-	pthread_mutex_lock(&main_event.mutex);
-	main_event.flag = 1;
-	pthread_cond_signal(&main_event.cond);
-	pthread_mutex_unlock(&main_event.mutex);
+    /* post the main event */
+    pthread_mutex_lock(&main_event.mutex);
+    main_event.flag = 1;
+    pthread_cond_signal(&main_event.cond);
+    pthread_mutex_unlock(&main_event.mutex);
 
-	/* that's it, bye */
-	return (void*) status;
+    /* that's it, bye */
+    return (void*) status;
 }
 
 int libc_ex7(void) {
-	unsigned long count;
+    unsigned long count;
 
-	setvbuf(stdout, NULL, _IONBF, 0);
+    setvbuf(stdout, NULL, _IONBF, 0);
 
-	/* initialize main event cond var */
-	pthread_cond_init(&main_event.cond, NULL);
-	pthread_mutex_init(&main_event.mutex, NULL);
-	main_event.flag = 0;
+    /* initialize main event cond var */
+    pthread_cond_init(&main_event.cond, NULL);
+    pthread_mutex_init(&main_event.mutex, NULL);
+    main_event.flag = 0;
 
-	for (count = 0; count < 20; ++count) {
-		pthread_t thread;
-		int status;
+    for (count = 0; count < 20; ++count) {
+        pthread_t thread;
+        int status;
 
-		/* pass down the milli-second timeout in the void* param */
-		status = pthread_create(&thread, NULL, test_thread, (void*) (count
-				* 100));
-		if (status != 0) {
-			printf("status = %d, count = %lu: %s\n", status, count, strerror(
-					errno));
-			return 1;
-		} else {
+        /* pass down the milli-second timeout in the void* param */
+        status = pthread_create(&thread, NULL, test_thread, (void*) (count
+                * 100));
+        if (status != 0) {
+            printf("status = %d, count = %lu: %s\n", status, count, strerror(
+                    errno));
+            return 1;
+        } else {
 
-			/* wait for the event posted by the child thread */
-			pthread_mutex_lock(&main_event.mutex);
-			while (main_event.flag == 0) {
-				pthread_cond_wait(&main_event.cond, &main_event.mutex);
-			}
-			main_event.flag = 0;
-			pthread_mutex_unlock(&main_event.mutex);
+            /* wait for the event posted by the child thread */
+            pthread_mutex_lock(&main_event.mutex);
+            while (main_event.flag == 0) {
+                pthread_cond_wait(&main_event.cond, &main_event.mutex);
+            }
+            main_event.flag = 0;
+            pthread_mutex_unlock(&main_event.mutex);
 
-			printf("count = %lu\n", count);
-		}
+            printf("count = %lu\n", count);
+        }
 
-		usleep(10);
-	}
+        usleep(10);
+    }
 
-	return 0;
+    return 0;
 }
 #include <finsh.h>
 FINSH_FUNCTION_EXPORT(libc_ex7, example 7 for libc);