Add sem_wait timeout on the kconsumerd thread

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

diff --git a/include/lttng-share.h b/include/lttng-share.h
index 78abff6ae7c2e34b4f515b0be09385fc5507a9b6..399de4f6e6f610ee63da83ed72050213dec8deb7 100644 (file)
--- a/include/lttng-share.h
+++ b/include/lttng-share.h
@@ -55,6 +55,13 @@
 /* See lttng-ust.h enum lttng_ust_output */
 #define DEFAULT_UST_CHANNEL_OUTPUT          LTTNG_UST_MMAP
 
+/*
+ * Default timeout value for the sem_timedwait() call. Blocking forever is not
+ * wanted so a timeout is used to control the data flow and not freeze the
+ * session daemon.
+ */
+#define DEFAULT_SEM_WAIT_TIMEOUT            30    /* in seconds */
+
 /*
  * Takes a pointer x and transform it so we can use it to access members
  * without a function call. Here an example: