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#include <string.h>
#include <sys/select.h>
#include <unistd.h>
#include <errno.h>
#include <bits/ensure.h>
#include <mlibc-config.h>
#include <mlibc/posix-sysdeps.hpp>
void __FD_CLR(int fd, fd_set *set) {
__ensure(fd < FD_SETSIZE);
set->__mlibc_elems[fd / 8] &= ~(1 << (fd % 8));
}
int __FD_ISSET(int fd, fd_set *set) {
__ensure(fd < FD_SETSIZE);
return set->__mlibc_elems[fd / 8] & (1 << (fd % 8));
}
void __FD_SET(int fd, fd_set *set) {
__ensure(fd < FD_SETSIZE);
set->__mlibc_elems[fd / 8] |= 1 << (fd % 8);
}
void __FD_ZERO(fd_set *set) {
memset(set->__mlibc_elems, 0, sizeof(fd_set));
}
int select(int num_fds, fd_set *__restrict read_set, fd_set *__restrict write_set,
fd_set *__restrict except_set, struct timeval *__restrict timeout) {
int num_events = 0;
struct timespec timeouts = {};
struct timespec *timeout_ptr = NULL;
if (timeout) {
timeouts.tv_sec = timeout->tv_sec;
timeouts.tv_nsec = timeout->tv_usec * 1000;
timeout_ptr = &timeouts;
}
MLIBC_CHECK_OR_ENOSYS(mlibc::sys_pselect, -1);
if(int e = mlibc::sys_pselect(num_fds, read_set, write_set, except_set,
timeout_ptr, NULL, &num_events); e) {
errno = e;
return -1;
}
return num_events;
}
int pselect(int num_fds, fd_set *read_set, fd_set *write_set, fd_set *except_set,
const struct timespec *timeout, const sigset_t *sigmask) {
int num_events = 0;
MLIBC_CHECK_OR_ENOSYS(mlibc::sys_pselect, -1);
if(int e = mlibc::sys_pselect(num_fds, read_set, write_set, except_set,
timeout, sigmask, &num_events); e) {
errno = e;
return -1;
}
return num_events;
}
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