1#include <mqueue.h> 2#include <errno.h> 3#include "syscall.h" 4 5#define IS32BIT(x) !((x)+0x80000000ULL>>32) 6#define CLAMP(x) (int)(IS32BIT(x) ? (x) : 0x7fffffffU+((0ULL+(x))>>63)) 7 8int mq_timedsend(mqd_t mqd, const char *msg, size_t len, unsigned prio, const struct timespec *at) 9{ 10#ifdef SYS_mq_timedsend_time64 11 time_t s = at ? at->tv_sec : 0; 12 long ns = at ? at->tv_nsec : 0; 13 long r = -ENOSYS; 14 if (SYS_mq_timedsend == SYS_mq_timedsend_time64 || !IS32BIT(s)) 15 r = __syscall_cp(SYS_mq_timedsend_time64, mqd, msg, len, prio, 16 at ? ((long long []){at->tv_sec, at->tv_nsec}) : 0); 17 if (SYS_mq_timedsend == SYS_mq_timedsend_time64 || r != -ENOSYS) 18 return __syscall_ret(r); 19 return syscall_cp(SYS_mq_timedsend, mqd, msg, len, prio, 20 at ? ((long[]){CLAMP(s), ns}) : 0); 21#else 22 return syscall_cp(SYS_mq_timedsend, mqd, msg, len, prio, at); 23#endif 24} 25