/*!
* \brief initializes the static vars/arrays
* \param h - pointer to the io_wait_h that will be initialized
* \param max_fd - maximum allowed fd number
* \param poll_method - poll method (0 for automatic best fit)
*/
int init_io_wait(io_wait_h* h, char *name, int max_fd,
enum poll_types poll_method, int async)
{
char * poll_err;
memset(h, 0, sizeof(*h));
h->name = name;
h->max_fd_no=max_fd;
#ifdef HAVE_EPOLL
h->epfd=-1;
#endif
#ifdef HAVE_KQUEUE
h->kq_fd=-1;
#endif
#ifdef HAVE_DEVPOLL
h->dpoll_fd=-1;
#endif
poll_err=check_poll_method(poll_method);
/* set an appropiate poll method */
if (poll_err || (poll_method==0)){
poll_method=choose_poll_method();
if (poll_err){
LM_ERR("%s, using %s instead\n",
poll_err, poll_method_str[poll_method]);
}else{
LM_INFO("using %s as the io watch method"
" (auto detected)\n", poll_method_str[poll_method]);
}
}
h->poll_method=poll_method;
if (h->poll_method != POLL_POLL && h->poll_method != POLL_EPOLL_LT &&
h->poll_method != POLL_EPOLL_ET) {
if (async)
LM_WARN("Tried to enable async polling but current poll method is %d."
" Currently we only support POLL and EPOLL \n",h->poll_method);
async=0;
}
/* common stuff, everybody has fd_hash */
h->fd_hash=local_malloc(sizeof(*(h->fd_hash))*h->max_fd_no);
if (h->fd_hash==0){
LM_CRIT("could not alloc fd hashtable (%ld bytes)\n",
(long)sizeof(*(h->fd_hash))*h->max_fd_no );
goto error;
}
memset((void*)h->fd_hash, 0, sizeof(*(h->fd_hash))*h->max_fd_no);
switch(poll_method){
case POLL_POLL:
#ifdef HAVE_SELECT
case POLL_SELECT:
#endif
#ifdef HAVE_SIGIO_RT
case POLL_SIGIO_RT:
#endif
#ifdef HAVE_DEVPOLL
case POLL_DEVPOLL:
#endif
h->fd_array=local_malloc(sizeof(*(h->fd_array))*h->max_fd_no);
if (h->fd_array==0){
LM_CRIT("could not alloc fd array (%ld bytes)\n",
(long)sizeof(*(h->fd_hash))*h->max_fd_no);
goto error;
}
memset((void*)h->fd_array, 0, sizeof(*(h->fd_array))*h->max_fd_no);
#ifdef HAVE_SIGIO_RT
if ((poll_method==POLL_SIGIO_RT) && (init_sigio(h, 0)<0)){
LM_CRIT("sigio init failed\n");
goto error;
}
#endif
#ifdef HAVE_DEVPOLL
if ((poll_method==POLL_DEVPOLL) && (init_devpoll(h)<0)){
LM_CRIT("/dev/poll init failed\n");
goto error;
}
#endif
#ifdef HAVE_SELECT
if ((poll_method==POLL_SELECT) && (init_select(h)<0)){
LM_CRIT("select init failed\n");
goto error;
}
#endif
break;
#ifdef HAVE_EPOLL
case POLL_EPOLL_LT:
case POLL_EPOLL_ET:
h->ep_array=local_malloc(sizeof(*(h->ep_array))*h->max_fd_no);
if (h->ep_array==0){
LM_CRIT("could not alloc epoll array\n");
goto error;
}
memset((void*)h->ep_array, 0, sizeof(*(h->ep_array))*h->max_fd_no);
if (init_epoll(h)<0){
LM_CRIT("epoll init failed\n");
goto error;
}
break;
#endif
#ifdef HAVE_KQUEUE
case POLL_KQUEUE:
h->kq_array=local_malloc(sizeof(*(h->kq_array))*h->max_fd_no);
if (h->kq_array==0){
LM_CRIT("could not alloc kqueue event array\n");
goto error;
}
h->kq_changes_size=KQ_CHANGES_ARRAY_SIZE;
h->kq_changes=local_malloc(sizeof(*(h->kq_changes))*
h->kq_changes_size);
if (h->kq_changes==0){
LM_CRIT("could not alloc kqueue changes array\n");
goto error;
}
h->kq_nchanges=0;
memset((void*)h->kq_array, 0, sizeof(*(h->kq_array))*h->max_fd_no);
memset((void*)h->kq_changes, 0,
sizeof(*(h->kq_changes))* h->kq_changes_size);
if (init_kqueue(h)<0){
LM_CRIT("kqueue init failed\n");
goto error;
}
break;
#endif
default:
LM_CRIT("unknown/unsupported poll method %s (%d)\n",
poll_method_str[poll_method], poll_method);
goto error;
}
return 0;
error:
return -1;
}
/*!
* \brief initializes the static vars/arrays
* \param h - pointer to the io_wait_h that will be initialized
* \param max_fd - maximum allowed fd number
* \param poll_method - poll method (0 for automatic best fit)
*/
int init_io_wait(io_wait_h* h, char *name, int max_fd,
enum poll_types poll_method, int max_prio)
{
char * poll_err;
memset(h, 0, sizeof(*h));
h->name = name;
h->max_prio = max_prio;
h->max_fd_no=max_fd;
#ifdef HAVE_EPOLL
h->epfd=-1;
#endif
#ifdef HAVE_KQUEUE
h->kq_fd=-1;
#endif
#ifdef HAVE_DEVPOLL
h->dpoll_fd=-1;
#endif
poll_err=check_poll_method(poll_method);
/* set an appropiate poll method */
if (poll_err || (poll_method==0)){
poll_method=choose_poll_method();
if (poll_err){
LM_ERR("%s, using %s instead\n",
poll_err, poll_method_str[poll_method]);
}else{
LM_INFO("using %s as the io watch method"
" (auto detected)\n", poll_method_str[poll_method]);
}
}
h->poll_method=poll_method;
/* common stuff, everybody has fd_hash */
h->fd_hash=local_malloc(sizeof(*(h->fd_hash))*h->max_fd_no);
if (h->fd_hash==0){
LM_CRIT("could not alloc fd hashtable (%ld bytes)\n",
(long)sizeof(*(h->fd_hash))*h->max_fd_no );
goto error;
}
memset((void*)h->fd_hash, 0, sizeof(*(h->fd_hash))*h->max_fd_no);
/* init the fd array as needed for priority ordering */
h->fd_array=local_malloc(sizeof(*(h->fd_array))*h->max_fd_no);
if (h->fd_array==0){
LM_CRIT("could not alloc fd array (%ld bytes)\n",
(long)sizeof(*(h->fd_hash))*h->max_fd_no);
goto error;
}
memset((void*)h->fd_array, 0, sizeof(*(h->fd_array))*h->max_fd_no);
/* array with indexes in fd_array where the priority changes */
h->prio_idx=local_malloc(sizeof(*(h->prio_idx))*h->max_prio);
if (h->prio_idx==0){
LM_CRIT("could not alloc fd array (%ld bytes)\n",
(long)sizeof(*(h->prio_idx))*h->max_prio);
goto error;
}
memset((void*)h->prio_idx, 0, sizeof(*(h->prio_idx))*h->max_prio);
switch(poll_method){
case POLL_POLL:
break;
#ifdef HAVE_SELECT
case POLL_SELECT:
if ((poll_method==POLL_SELECT) && (init_select(h)<0)){
LM_CRIT("select init failed\n");
goto error;
}
break;
#endif
#ifdef HAVE_DEVPOLL
case POLL_DEVPOLL:
if ((poll_method==POLL_DEVPOLL) && (init_devpoll(h)<0)){
LM_CRIT("/dev/poll init failed\n");
goto error;
}
h->dp_changes=local_malloc(sizeof(*(h->dp_changes))*h->max_fd_no);
if (h->dp_changes==0){
LM_CRIT("could not alloc db changes array (%ld bytes)\n",
(long)sizeof(*(h->dp_changes))*h->max_fd_no);
goto error;
}
memset((void*)h->dp_changes, 0,
sizeof(*(h->dp_changes))*h->max_fd_no);
break;
#endif
#ifdef HAVE_SIGIO_RT
case POLL_SIGIO_RT:
if ((poll_method==POLL_SIGIO_RT) && (init_sigio(h, 0)<0)){
LM_CRIT("sigio init failed\n");
goto error;
}
break;
#endif
#ifdef HAVE_EPOLL
case POLL_EPOLL_LT:
case POLL_EPOLL_ET:
h->ep_array=local_malloc(sizeof(*(h->ep_array))*h->max_fd_no);
if (h->ep_array==0){
LM_CRIT("could not alloc epoll array\n");
goto error;
}
memset((void*)h->ep_array, 0, sizeof(*(h->ep_array))*h->max_fd_no);
if (init_epoll(h)<0){
LM_CRIT("epoll init failed\n");
goto error;
}
break;
#endif
#ifdef HAVE_KQUEUE
case POLL_KQUEUE:
h->kq_array=local_malloc(sizeof(*(h->kq_array))*h->max_fd_no);
if (h->kq_array==0){
LM_CRIT("could not alloc kqueue event array\n");
goto error;
}
h->kq_changes_size=KQ_CHANGES_ARRAY_SIZE;
h->kq_changes=local_malloc(sizeof(*(h->kq_changes))*
h->kq_changes_size);
if (h->kq_changes==0){
LM_CRIT("could not alloc kqueue changes array\n");
goto error;
}
h->kq_nchanges=0;
memset((void*)h->kq_array, 0, sizeof(*(h->kq_array))*h->max_fd_no);
memset((void*)h->kq_changes, 0,
sizeof(*(h->kq_changes))* h->kq_changes_size);
if (init_kqueue(h)<0){
LM_CRIT("kqueue init failed\n");
goto error;
}
break;
#endif
default:
LM_CRIT("unknown/unsupported poll method %s (%d)\n",
poll_method_str[poll_method], poll_method);
goto error;
}
return 0;
error:
return -1;
}
/* initializes the static vars/arrays
* params: h - pointer to the io_wait_h that will be initialized
* max_fd - maximum allowed fd number
* poll_m - poll method (0 for automatic best fit)
*/
int init_io_wait(io_wait_h* h, int max_fd, enum poll_types poll_method)
{
char * poll_err;
if (_os_ver==0) _os_ver=get_sys_version(0,0,0);
memset(h, 0, sizeof(*h));
h->max_fd_no=max_fd;
#ifdef HAVE_EPOLL
h->epfd=-1;
#endif
#ifdef HAVE_KQUEUE
h->kq_fd=-1;
#endif
#ifdef HAVE_DEVPOLL
h->dpoll_fd=-1;
#endif
poll_err=check_poll_method(poll_method);
/* set an appropiate poll method */
if (poll_err || (poll_method==0)){
poll_method=choose_poll_method();
if (poll_err){
LOG(L_ERR, "ERROR: init_io_wait: %s, using %s instead\n",
poll_err, poll_method_str[poll_method]);
}else{
LOG(L_INFO, "init_io_wait: using %s as the io watch method"
" (auto detected)\n", poll_method_str[poll_method]);
}
}
h->poll_method=poll_method;
/* common stuff, everybody has fd_hash */
h->fd_hash=local_malloc(sizeof(*(h->fd_hash))*h->max_fd_no);
if (h->fd_hash==0){
LOG(L_CRIT, "ERROR: init_io_wait: could not alloc"
" fd hashtable (%ld bytes)\n",
(long)sizeof(*(h->fd_hash))*h->max_fd_no );
goto error;
}
memset((void*)h->fd_hash, 0, sizeof(*(h->fd_hash))*h->max_fd_no);
switch(poll_method){
case POLL_POLL:
#ifdef HAVE_SELECT
case POLL_SELECT:
#endif
#ifdef HAVE_SIGIO_RT
case POLL_SIGIO_RT:
#endif
#ifdef HAVE_DEVPOLL
case POLL_DEVPOLL:
#endif
h->fd_array=local_malloc(sizeof(*(h->fd_array))*h->max_fd_no);
if (h->fd_array==0){
LOG(L_CRIT, "ERROR: init_io_wait: could not"
" alloc fd array (%ld bytes)\n",
(long)sizeof(*(h->fd_hash))*h->max_fd_no);
goto error;
}
memset((void*)h->fd_array, 0, sizeof(*(h->fd_array))*h->max_fd_no);
#ifdef HAVE_SIGIO_RT
if ((poll_method==POLL_SIGIO_RT) && (init_sigio(h, 0)<0)){
LOG(L_CRIT, "ERROR: init_io_wait: sigio init failed\n");
goto error;
}
#endif
#ifdef HAVE_DEVPOLL
if ((poll_method==POLL_DEVPOLL) && (init_devpoll(h)<0)){
LOG(L_CRIT, "ERROR: init_io_wait: /dev/poll init failed\n");
goto error;
}
#endif
#ifdef HAVE_SELECT
if ((poll_method==POLL_SELECT) && (init_select(h)<0)){
LOG(L_CRIT, "ERROR: init_io_wait: select init failed\n");
goto error;
}
#endif
break;
#ifdef HAVE_EPOLL
case POLL_EPOLL_LT:
case POLL_EPOLL_ET:
h->ep_array=local_malloc(sizeof(*(h->ep_array))*h->max_fd_no);
if (h->ep_array==0){
LOG(L_CRIT, "ERROR: init_io_wait: could not alloc"
" epoll array\n");
goto error;
}
memset((void*)h->ep_array, 0, sizeof(*(h->ep_array))*h->max_fd_no);
if (init_epoll(h)<0){
LOG(L_CRIT, "ERROR: init_io_wait: epoll init failed\n");
goto error;
}
break;
#endif
#ifdef HAVE_KQUEUE
case POLL_KQUEUE:
h->kq_array=local_malloc(sizeof(*(h->kq_array))*h->max_fd_no);
if (h->kq_array==0){
LOG(L_CRIT, "ERROR: init_io_wait: could not alloc"
" kqueue event array\n");
goto error;
}
h->kq_changes_size=KQ_CHANGES_ARRAY_SIZE;
h->kq_changes=local_malloc(sizeof(*(h->kq_changes))*
h->kq_changes_size);
if (h->kq_changes==0){
LOG(L_CRIT, "ERROR: init_io_wait: could not alloc"
" kqueue changes array\n");
goto error;
}
h->kq_nchanges=0;
memset((void*)h->kq_array, 0, sizeof(*(h->kq_array))*h->max_fd_no);
memset((void*)h->kq_changes, 0,
sizeof(*(h->kq_changes))* h->kq_changes_size);
if (init_kqueue(h)<0){
LOG(L_CRIT, "ERROR: init_io_wait: kqueue init failed\n");
goto error;
}
break;
#endif
default:
LOG(L_CRIT, "BUG: init_io_wait: unknown/unsupported poll"
" method %s (%d)\n",
poll_method_str[poll_method], poll_method);
goto error;
}
return 0;
error:
return -1;
}