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Add wakeup on subbuffer delivery
[lttng-ust.git]
/
libringbuffer
/
shm.c
diff --git
a/libringbuffer/shm.c
b/libringbuffer/shm.c
index 8f158e2f0507feeb8d05e000f08241a0e356b9e9..6a77af6462a61d93a3c5c1bfb8fff214f546de62 100644
(file)
--- a/
libringbuffer/shm.c
+++ b/
libringbuffer/shm.c
@@
-49,6
+49,12
@@
struct shm_object *shm_object_table_append(struct shm_object_table *table,
goto error_fcntl;
}
}
+ /* The write end of the pipe needs to be non-blocking */
+ ret = fcntl(waitfd[1], F_SETFL, O_NONBLOCK);
+ if (ret < 0) {
+ PERROR("fcntl");
+ goto error_fcntl;
+ }
*obj->wait_fd = *waitfd;
/* shm_fd: create shm */
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