Fix: getenv can return null

[lttng-tools.git] / src / common / compat / poll.h

diff --git a/src/common/compat/poll.h b/src/common/compat/poll.h
index 77c46a1d08d60ac8bca806628f368fc46fc915c2..d4bd87f589213fbace764f2f2d3d152551d5ab5a 100644 (file)
--- a/src/common/compat/poll.h
+++ b/src/common/compat/poll.h
@@ -171,6 +171,14 @@ extern int compat_epoll_del(struct lttng_poll_event *events, int fd);
 #define lttng_poll_del(events, fd) \
        compat_epoll_del(events, fd)
 
+/*
+ * Modify an fd's events in the epoll set.
+ */
+extern int compat_epoll_mod(struct lttng_poll_event *events,
+               int fd, uint32_t req_events);
+#define lttng_poll_mod(events, fd, req_events) \
+       compat_epoll_add(events, fd, req_events)
+
 /*
  * Set up the poll set limits variable poll_max_size
  */
@@ -347,6 +355,14 @@ extern int compat_poll_del(struct lttng_poll_event *events, int fd);
 #define lttng_poll_del(events, fd) \
        compat_poll_del(events, fd)
 
+/*
+ * Modify an fd's events in the epoll set.
+ */
+extern int compat_poll_mod(struct lttng_poll_event *events,
+               int fd, uint32_t req_events);
+#define lttng_poll_mod(events, fd, req_events) \
+       compat_poll_add(events, fd, req_events)
+
 /*
  * Set up the poll set limits variable poll_max_size
  */