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[lttv.git] / ltt-usertrace / sample-thread-fast.c

diff --git a/ltt-usertrace/sample-thread-fast.c b/ltt-usertrace/sample-thread-fast.c
index 69f1cf890c4770bb88e2297ede7bcf30fa1ec2b5..46ffbd12ff3f5b27df1e307763204cf6e37fd1c0 100644 (file)
--- a/ltt-usertrace/sample-thread-fast.c
+++ b/ltt-usertrace/sample-thread-fast.c
@@ -11,13 +11,13 @@
 
 void *thr1(void *arg)
 {
+       int i;
        ltt_thread_init();      /* This init is not required : it will be done
                                                                                                 automatically anyways at the first tracing call site */
        printf("thread 1, thread id : %lu, pid %lu\n", pthread_self(), getpid());
 
-       while(1) {
+       for(i=0; i<100000; i++) {
                trace_user_generic_string("Hello world! Have a nice day.");
-               sleep(2);
        }
        pthread_exit((void*)1);
 }
@@ -26,12 +26,12 @@ void *thr1(void *arg)
 /* Example of a _bad_ thread, which still works with the tracing */
 void *thr2(void *arg)
 {
+       int i;
        /* See ? no init */
        printf("thread 2, thread id : %lu, pid %lu\n", pthread_self(), getpid());
-       sleep(1);
-       while(1) {
+
+       for(i=0; i<100000; i++) {
                trace_user_generic_string("Hello world! Have a nice day.");
-               sleep(2);
        }
        /* This thread is a bad citizen : returning like this will cause its cancel
         * routines not to be executed. This is still detected by the tracer, but only
@@ -48,9 +48,8 @@ int main()
        void *tret;
 
        printf("Will trace the following string : Hello world! Have a nice day.\n");
-       printf("Press CTRL-C to stop.\n");
-       printf("No file is created with this example : it logs through a kernel\n");
-       printf("system call. See the LTTng lttctl command to start tracing.\n\n");
+       printf("It will stop automatically.\n");
+       printf("See the result file in /tmp/ltt-usertrace.\n");
 
        printf("thread main, thread id : %lu, pid %lu\n", pthread_self(), getpid());
        err = pthread_create(&tid1, NULL, thr1, NULL);