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#include <sys/select.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include "../error/error.h"
#include "server.h"
int ZoO_server_wait_for_event
(
struct ZoO_server server [const static 1]
)
{
int ready_fds;
const int old_errno = errno;
fd_set ready_to_read;
ready_to_read = server->socket.as_a_set;
/* call to select may alter timeout */
memset((void *) &(server->socket.timeout), 0, sizeof(struct timeval));
server->socket.timeout.tv_sec = ZoO_SERVER_SOCKET_ACCEPT_TIMEOUT_SEC;
errno = 0;
ready_fds = select
(
(server->socket.file_descriptor + 1),
&ready_to_read,
(fd_set *) NULL,
(fd_set *) NULL,
&(server->socket.timeout)
);
ZoO_DEBUG(stderr, 1, "SELECT returned: %i, errno is %i.", ready_fds, errno);
if (errno == EINTR)
{
ready_fds = 0;
}
if (ready_fds == -1)
{
ZoO_FATAL
(
stderr,
"Unable to wait on server socket: %s.",
strerror(errno)
);
errno = old_errno;
return -1;
}
errno = old_errno;
return ready_fds;
}
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