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-rw-r--r--src/select.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/select.c b/src/select.c
index 02bc2cc..192cae2 100644
--- a/src/select.c
+++ b/src/select.c
@@ -47,6 +47,7 @@ static int unregistered_count;
/*! \brief Register a new file descriptor with select loop abstraction
* \param[in] fd osmocom file descriptor to be registered
+ * \returns 0 on success; negative in case of error
*/
int osmo_fd_register(struct osmo_fd *fd)
{
@@ -160,6 +161,7 @@ restart:
/*! \brief select main loop integration
* \param[in] polling should we pollonly (1) or block on select (0)
+ * \returns 0 if no fd handled; 1 if fd handled; negative in case of error
*/
int osmo_select_main(int polling)
{
@@ -189,7 +191,9 @@ int osmo_select_main(int polling)
return osmo_fd_disp_fds(&readset, &writeset, &exceptset);
}
-/*! \brief find an osmo_fd based on the integer fd */
+/*! \brief find an osmo_fd based on the integer fd
+ * \param[in] fd file descriptor to use as search key
+ * \returns \ref osmo_fd for \ref fd; NULL in case it doesn't exist */
struct osmo_fd *osmo_fd_get_by_fd(int fd)
{
struct osmo_fd *ofd;