X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng-share.h;h=d076ef3ade5d172d2ef63b9f34168e2b2701a817;hb=283046e084c1461001c8584c5b4adada02265496;hp=cd971c355044d9351dcd42f72f9b086df8f93a12;hpb=b9f1dd6997ea64db8c140c617d2a74cf90767e3b;p=lttng-tools.git

diff --git a/include/lttng-share.h b/include/lttng-share.h
index cd971c355..d076ef3ad 100644
--- a/include/lttng-share.h
+++ b/include/lttng-share.h
@@ -3,8 +3,8 @@
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
+ * as published by the Free Software Foundation; only version 2
+ * of the License.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -27,16 +27,31 @@ typedef uint64_t u64;
 
 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 */
+#define DEFAULT_CHANNEL_OUTPUT			LTTNG_EVENT_MMAP
+
+#define DEFAULT_METADATA_SUBBUF_SIZE		4096
+#define DEFAULT_METADATA_SUBBUF_NUM		8
+//TODO: keeping value to 8 currently because consumer is only spawned after
+//start, so it cannot empty the metadata buffer at trace start.
+//#define DEFAULT_METADATA_SUBBUF_NUM		2
+
+/* Kernel has different defaults */
+
+/* DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
+#define DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE	262144    /* bytes */
+/* DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM must always be a power of 2 */
+#define DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM	4
+/* See lttng-kernel.h enum lttng_kernel_output for channel output */
+#define DEFAULT_KERNEL_CHANNEL_OUTPUT		LTTNG_EVENT_SPLICE
 
 /*
  * lttng user-space instrumentation type