#include <signal.h>
#include "syscall.h"

int sigsuspend(const sigset_t *mask)
{
#ifdef __LITEOS_A__
	int ret, retval;
	sigset_t oldset;

	retval = sigprocmask(SIG_BLOCK, 0, &oldset);
	if (retval != 0) {
		return retval;
	}

	ret = syscall_cp(SYS_rt_sigsuspend, mask, _NSIG/8);

	if (ret == -1) {
		retval = sigprocmask(SIG_SETMASK, &oldset, 0);
		if (retval != 0) {
			return retval;
		}
	}

	return ret;
#else
	return syscall_cp(SYS_rt_sigsuspend, mask, _NSIG/8);
#endif
}