From 50a6ac7fb90ad4008b354ff8e72c6ce511dbeb3a Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Tue, 11 Jan 2005 09:41:40 +0000 Subject: Patch from Paul Mundt (lethal) adding an initial librt implementation. I then reworked the syscall handling and made minor cleanups. With luck I've not completely broken his patch... --- librt/mq_notify.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 librt/mq_notify.c (limited to 'librt/mq_notify.c') diff --git a/librt/mq_notify.c b/librt/mq_notify.c new file mode 100644 index 000000000..4e7953242 --- /dev/null +++ b/librt/mq_notify.c @@ -0,0 +1,28 @@ +/* + * mq_notify.c - notify process that a message is available. + */ + +#include +#include +#include + +#include + +#ifdef __NR_mq_notify + +#define __NR___syscall_mq_notify __NR_mq_notify +static inline _syscall2(int, __syscall_mq_notify, int, mqdes, + const void *, notification); + +/* Register notification upon message arrival to an empty message queue */ +int mq_notify(mqd_t mqdes, const struct sigevent *notification) +{ + /* We don't support SIGEV_THREAD notification yet */ + if (notification != NULL && notification->sigev_notify == SIGEV_THREAD) { + __set_errno(ENOSYS); + return -1; + } + return __syscall_mq_notify(mqdes, notification); +} + +#endif -- cgit v1.2.3