move all projects into the trunk directory

[lttv.git] / trunk / ltt-usertrace / sample-printf.c

diff --git a/trunk/ltt-usertrace/sample-printf.c b/trunk/ltt-usertrace/sample-printf.c
new file mode 100644 (file)
index 0000000..a513e3b
--- /dev/null
+++ b/trunk/ltt-usertrace/sample-printf.c
@@ -0,0 +1,31 @@
+
+#include <stdio.h>
+#include <unistd.h>
+
+#define LTT_TRACE
+#define LTT_BLOCKING 1
+#include <ltt/ltt-facility-user_generic.h>
+#include <ltt/ltt-facility-custom-user_generic.h>
+// Notice the inclusion of ltt-facility-custom-user_generic.h for the
+// slow_printf support
+
+
+int main(int argc, char **argv)
+{
+       printf("Will trace a printf of an incrementing counter.\n");
+       printf("Abort with CTRL-C.\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");
+
+       unsigned int count = 0;
+
+       while(1) {
+               trace_user_generic_slow_printf("in: %s at: %s:%d: Counter value is: %u.",
+                                                                                                                                       __FILE__, __func__, __LINE__, count);
+               count++;
+               sleep(1);
+       }
+       
+       return 0;
+}
+