void citp_log_fn_ul(const char* msg)
{
struct iovec v[2];
int tmp_fd = 0;
if( citp.log_fd < 0 ) {
if( citp.init_level >= CITP_INIT_SYSCALLS ) {
citp.log_fd = oo_fcntl_dupfd_cloexec(STDERR_FILENO, 3);
if( citp.log_fd >= 0 && citp_fdtable.table != NULL )
citp_fdtable.table[citp.log_fd].fdip =
fdi_to_fdip(&citp_the_reserved_fd);
}
if( citp.log_fd < 0 ) {
citp.log_fd = STDERR_FILENO;
tmp_fd = 1;
}
}
v[0].iov_base = (void*) msg;
v[0].iov_len = strlen(v[0].iov_base);
v[1].iov_base = "\n";
v[1].iov_len = strlen(v[1].iov_base);
my_syscall3(writev, citp.log_fd, (long) v, 2);
if( tmp_fd )
citp.log_fd = -1;
}
void citp_log_change_fd(void)
{
int newfd, prev;
/* We need to change logging fd, probably because someone wants to do a
** dup2() onto it.
**
** No need to set 'close-on-exec' (FD_CLOEXEC) again for the newfd as
** it will be copied by the dup().
*/
CITP_FDTABLE_LOCK();
prev = citp.log_fd;
newfd = oo_fcntl_dupfd_cloexec(prev, 3);
if( newfd >= 0 ) {
__citp_fdtable_reserve(newfd, 1);
citp.log_fd = newfd;
}
Log_S(log("%s: old=%d new=%d", __FUNCTION__, prev, newfd));
__citp_fdtable_reserve(prev, 0);
ci_sys_close(prev);
CITP_FDTABLE_UNLOCK();
}
int ef_onload_handle_move_and_do_cloexec(ef_driver_handle* pfd, int do_cloexec)
{
int fd;
if( do_cloexec )
fd = oo_fcntl_dupfd_cloexec(*pfd, CITP_OPTS.fd_base);
else
fd = ci_sys_fcntl(*pfd, F_DUPFD, CITP_OPTS.fd_base);
/* If we've successfully done the dup then we've also set CLOEXEC if
* needed on the new fd, so we're done.
*/
if( fd >= 0 ) {
ci_tcp_helper_close_no_trampoline(*pfd);
*pfd = fd;
return 0;
}
else {
LOG_NV(ci_log("%s: Failed to move fd from %d, rc %d",
__func__, *pfd, fd));
}
return fd;
}
