123456789101112131415161718192021 | #include <sys/signalfd.h> #include <signal.h> #include <errno.h> #include <fcntl.h> #include "syscall.h" int signalfd(int fd, const sigset_t *sigs, int flags) { int ret = __syscall(SYS_signalfd4, fd, sigs, _NSIG/8, flags); #ifdef SYS_signalfd if (ret != -ENOSYS) return __syscall_ret(ret); ret = __syscall(SYS_signalfd, fd, sigs, _NSIG/8); if (ret >= 0) { if (flags & SFD_CLOEXEC) __syscall(SYS_fcntl, ret, F_SETFD, FD_CLOEXEC); if (flags & SFD_NONBLOCK) __syscall(SYS_fcntl, ret, F_SETFL, O_NONBLOCK); } #endif return __syscall_ret(ret); }
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