| 123456789101112131415161718192021222324252627282930313233343536 | /* * mq_getattr.c - get message queue attributes. */#include <errno.h>#include <stddef.h>#include <sys/syscall.h>#include <mqueue.h>#ifdef __NR_mq_getsetattrlibrt_hidden_proto(mq_setattr)#define __NR___syscall_mq_getsetattr __NR_mq_getsetattrstatic __inline__ _syscall3(int, __syscall_mq_getsetattr, int, mqdes,			const void *, mqstat, void *, omqstat);/* * Set attributes associated with message queue (and possibly also get * its old attributes) */int mq_setattr(mqd_t mqdes, const struct mq_attr *mqstat,               struct mq_attr *omqstat){	return __syscall_mq_getsetattr(mqdes, mqstat, omqstat);}librt_hidden_def(mq_setattr)/* Query status and attributes of message queue */int mq_getattr(mqd_t mqdes, struct mq_attr *mqstat){	return mq_setattr(mqdes, NULL, mqstat);}#endif
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