new ltt-usertrace

git-svn-id: http://ltt.polymtl.ca/svn@1647 04897980-b3bd-0310-b5e0-8ef037075253

diff --git a/ltt-usertrace/sample-thread-fast.c b/ltt-usertrace/sample-thread-fast.c
new file mode 100644 (file)
index 0000000..d98c86f
--- /dev/null
+++ b/ltt-usertrace/sample-thread-fast.c
@@ -0,0 +1,62 @@
+
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#define LTT_TRACE
+//this one is a non blocking sample (not #define LTT_BLOCKING 1)
+#include <ltt/ltt-facility-user_generic.h>
+
+
+void *thr1(void *arg)
+{
+  printf("thread 1, thread id : %lu, pid %lu\n", pthread_self(), getpid());
+
+  while(1) {
+               trace_user_generic_string("Hello world! Have a nice day.");
+               sleep(2);
+       }
+
+  return ((void*)1);
+
+}
+
+void *thr2(void *arg)
+{
+  printf("thread 2, thread id : %lu, pid %lu\n", pthread_self(), getpid());
+       sleep(1);
+  while(1) {
+               trace_user_generic_string("Hello world! Have a nice day.");
+    sleep(2);
+  }
+  return ((void*)2);
+}
+
+
+int main()
+{
+       int err;
+       pthread_t tid1, tid2;
+       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("thread main, thread id : %lu, pid %lu\n", pthread_self(), getpid());
+  err = pthread_create(&tid1, NULL, thr1, NULL);
+  if(err!=0) exit(1);
+
+  err = pthread_create(&tid2, NULL, thr2, NULL);
+  if(err!=0) exit(1);
+
+  err = pthread_join(tid1, &tret);
+  if(err!= 0) exit(1);
+
+  err = pthread_join(tid2, &tret);
+  if(err!= 0) exit(1);
+  
+  return 0;
+}