diff options
Diffstat (limited to '')
| -rw-r--r-- | libc-top-half/musl/src/mq/mq_timedreceive.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/mq/mq_timedreceive.c b/libc-top-half/musl/src/mq/mq_timedreceive.c new file mode 100644 index 0000000..f41b664 --- /dev/null +++ b/libc-top-half/musl/src/mq/mq_timedreceive.c @@ -0,0 +1,24 @@ +#include <mqueue.h> +#include <errno.h> +#include "syscall.h" + +#define IS32BIT(x) !((x)+0x80000000ULL>>32) +#define CLAMP(x) (int)(IS32BIT(x) ? (x) : 0x7fffffffU+((0ULL+(x))>>63)) + +ssize_t mq_timedreceive(mqd_t mqd, char *restrict msg, size_t len, unsigned *restrict prio, const struct timespec *restrict at) +{ +#ifdef SYS_mq_timedreceive_time64 + time_t s = at ? at->tv_sec : 0; + long ns = at ? at->tv_nsec : 0; + long r = -ENOSYS; + if (SYS_mq_timedreceive == SYS_mq_timedreceive_time64 || !IS32BIT(s)) + r = __syscall_cp(SYS_mq_timedreceive_time64, mqd, msg, len, prio, + at ? ((long long []){at->tv_sec, at->tv_nsec}) : 0); + if (SYS_mq_timedreceive == SYS_mq_timedreceive_time64 || r != -ENOSYS) + return __syscall_ret(r); + return syscall_cp(SYS_mq_timedreceive, mqd, msg, len, prio, + at ? ((long[]){CLAMP(s), ns}) : 0); +#else + return syscall_cp(SYS_mq_timedreceive, mqd, msg, len, prio, at); +#endif +} |