Fix tracing events data structure

[lttng-tools.git] / include / lttng-share.h

diff --git a/include/lttng-share.h b/include/lttng-share.h
index cd971c355044d9351dcd42f72f9b086df8f93a12..30aa23cd36bce080538f3c2c86248ab0dbaf07fe 100644 (file)
--- a/include/lttng-share.h
+++ b/include/lttng-share.h
@@ -30,13 +30,20 @@ typedef __s64 s64;
 #define LTTNG_RUNDIR        "/var/run/lttng"
 
 /* Default channel attributes */
-#define DEFAULT_CHANNEL_NAME                 "channel0"
-#define DEFAULT_CHANNEL_OVERWRITE            0
-#define DEFAULT_CHANNEL_SUBBUF_SIZE          4096    /* bytes */
-#define DEFAULT_CHANNEL_SUBBUF_NUM           8       /* Must always be a power of 2 */
-#define DEFAULT_CHANNEL_SWITCH_TIMER         0       /* usec */
-#define DEFAULT_CHANNEL_READ_TIMER           200     /* usec */
-#define DEFAULT_CHANNEL_OUTPUT               0       /* splice, mmap (0: SPLICE, 1: MMAP, see lttng.h) */
+#define DEFAULT_CHANNEL_NAME                "channel0"
+#define DEFAULT_CHANNEL_OVERWRITE           0       /* usec */
+/* DEFAULT_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
+#define DEFAULT_CHANNEL_SUBBUF_SIZE         4096    /* bytes */
+/* DEFAULT_CHANNEL_SUBBUF_NUM must always be a power of 2 */
+#define DEFAULT_CHANNEL_SUBBUF_NUM          8
+#define DEFAULT_CHANNEL_SWITCH_TIMER        0       /* usec */
+#define DEFAULT_CHANNEL_READ_TIMER          200     /* usec */
+/* See lttng-kernel.h enum lttng_kernel_output for channel output */
+#define DEFAULT_KERNEL_CHANNEL_OUTPUT       LTTNG_KERNEL_SPLICE
+
+/* == NOT IMPLEMENTED ==
+#define DEFAULT_UST_CHANNEL_OUTPUT          LTTNG_UST_MMAP
+*/
 
 /*
  * lttng user-space instrumentation type