On-disk multiple tracefiles circular buffer

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

diff --git a/include/lttng/lttng.h b/include/lttng/lttng.h
index 8566deabe61d91dea58337e94bb74f5075c970e2..ee348df850adb0c4753201595ed2e404b1840a9e 100644 (file)
--- a/include/lttng/lttng.h
+++ b/include/lttng/lttng.h
@@ -277,7 +277,7 @@ struct lttng_event_field {
  *
  * The structures should be initialized to zero before use.
  */
-#define LTTNG_CHANNEL_ATTR_PADDING1        LTTNG_SYMBOL_NAME_LEN + 32
+#define LTTNG_CHANNEL_ATTR_PADDING1        LTTNG_SYMBOL_NAME_LEN + 16
 struct lttng_channel_attr {
        int overwrite;                      /* 1: overwrite, 0: discard */
        uint64_t subbuf_size;               /* bytes */
@@ -285,6 +285,9 @@ struct lttng_channel_attr {
        unsigned int switch_timer_interval; /* usec */
        unsigned int read_timer_interval;   /* usec */
        enum lttng_event_output output;     /* splice, mmap */
+       /* LTTng 2.1 padding limit */
+       uint64_t tracefile_size;            /* bytes */
+       uint64_t tracefile_count;           /* number of tracefiles */
 
        char padding[LTTNG_CHANNEL_ATTR_PADDING1];
 };