globus_result_t
globus_i_xio_system_file_try_write(
globus_xio_system_file_t handle,
const globus_xio_iovec_t * iov,
int iovc,
globus_size_t * nbytes)
{
globus_result_t result;
GlobusXIOName(globus_i_xio_system_file_try_write);
GlobusXIOSystemDebugEnter();
if(iovc == 1)
{
result = globus_i_xio_system_try_write(
handle, iov->iov_base, iov->iov_len, nbytes);
}
else
{
result = globus_i_xio_system_try_writev(handle, iov, iovc, nbytes);
}
GlobusXIOSystemDebugExit();
return result;
}
globus_result_t
globus_i_xio_win32_complete(
globus_callback_func_t callback,
void * user_arg)
{
globus_l_xio_win32_poll_entry_t * entry;
globus_result_t result;
GlobusXIOName(globus_i_xio_win32_complete);
GlobusXIOSystemDebugEnter();
if (! globus_i_am_only_thread())
{
return globus_callback_register_oneshot(
0,
0,
callback,
user_arg);
}
win32_mutex_lock(&globus_l_xio_win32_poll_lock);
{
if(globus_l_xio_win32_poll_free)
{
entry = globus_l_xio_win32_poll_free;
globus_l_xio_win32_poll_free = entry->next;
}
else
{
entry = (globus_l_xio_win32_poll_entry_t *)
globus_malloc(sizeof(globus_l_xio_win32_poll_entry_t));
if(!entry)
{
result = GlobusXIOErrorMemory("entry");
goto error_malloc;
}
}
entry->callback = callback;
entry->user_arg = user_arg;
GlobusLWin32PollQueueEnqueue(entry);
if(globus_l_xio_win32_poll_event_sleeping &&
!globus_l_xio_win32_poll_event_pending)
{
SetEvent(globus_l_xio_win32_poll_event);
globus_l_xio_win32_poll_event_pending = GLOBUS_TRUE;
}
}
win32_mutex_unlock(&globus_l_xio_win32_poll_lock);
GlobusXIOSystemDebugExit();
return GLOBUS_SUCCESS;
error_malloc:
return result;
}
globus_result_t
globus_i_xio_system_socket_try_write(
globus_xio_system_socket_t handle,
const globus_xio_iovec_t * iov,
int iovc,
int flags,
globus_sockaddr_t * to,
globus_size_t * nbytes)
{
globus_result_t result;
GlobusXIOName(globus_i_xio_system_socket_try_write);
GlobusXIOSystemDebugEnter();
#if !defined(WIN32) && !defined(TARGET_ARCH_NETOS)
/* posix can use writev for sockets */
if(!flags && !to && iovc > 1)
{
result = globus_i_xio_system_try_writev(handle, iov, iovc, nbytes);
}
else
#endif
if(iovc == 1)
{
if(to)
{
result = globus_i_xio_system_try_sendto(
handle, iov->iov_base, iov->iov_len, flags, to, nbytes);
}
else
{
result = globus_i_xio_system_try_send(
handle, iov->iov_base, iov->iov_len, flags, nbytes);
}
}
else
{
struct msghdr msghdr;
memset(&msghdr, 0, sizeof(msghdr));
msghdr.msg_iov = (struct iovec *) iov;
msghdr.msg_iovlen = iovc;
if(to)
{
msghdr.msg_name = (struct sockaddr *) to;
msghdr.msg_namelen = GlobusLibcSockaddrLen(to);
}
result = globus_i_xio_system_try_sendmsg(
handle, &msghdr, flags, nbytes);
}
GlobusXIOSystemDebugExit();
return result;
}
globus_result_t
globus_i_xio_system_socket_try_read(
globus_xio_system_socket_t handle,
const globus_xio_iovec_t * iov,
int iovc,
int flags,
globus_sockaddr_t * from,
globus_size_t * nbytes)
{
globus_result_t result;
GlobusXIOName(globus_i_xio_system_socket_try_read);
GlobusXIOSystemDebugEnter();
#if !defined(WIN32) && !defined(TARGET_ARCH_NETOS)
/* posix can use readv for sockets */
if(!flags && !from && iovc > 1)
{
result = globus_i_xio_system_try_readv(handle, iov, iovc, nbytes);
}
else
#endif
if(iovc == 1)
{
if(from)
{
result = globus_i_xio_system_try_recvfrom(
handle, iov->iov_base, iov->iov_len, flags, from, nbytes);
}
else
{
result = globus_i_xio_system_try_recv(
handle, iov->iov_base, iov->iov_len, flags, nbytes);
}
}
else
{
struct msghdr msghdr;
memset(&msghdr, 0, sizeof(msghdr));
msghdr.msg_iov = (struct iovec *) iov;
msghdr.msg_iovlen = iovc;
if(from)
{
msghdr.msg_name = from;
msghdr.msg_namelen = sizeof(globus_sockaddr_t);
}
result = globus_i_xio_system_try_recvmsg(
handle, &msghdr, flags, nbytes);
}
GlobusXIOSystemDebugExit();
return result;
}
int
globus_i_xio_win32_complete_activate(void)
{
globus_result_t result;
globus_reltime_t period;
GlobusXIOName(globus_i_xio_win32_complete_activate);
GlobusXIOSystemDebugEnter();
if (!globus_i_am_only_thread())
{
goto skip_activate;
}
GlobusLWin32PollQueueInit();
win32_mutex_init(&globus_l_xio_win32_poll_lock, 0);
globus_l_xio_win32_poll_event_sleeping = GLOBUS_FALSE;
globus_l_xio_win32_poll_event_pending = GLOBUS_FALSE;
globus_l_xio_win32_poll_free = 0;
globus_l_xio_win32_poll_event = CreateEvent(0, FALSE, FALSE, 0);
if(globus_l_xio_win32_poll_event == 0)
{
goto error_event;
}
GlobusTimeReltimeSet(period, 0, 0);
result = globus_callback_register_periodic(
&globus_l_xio_win32_poll_handle,
0,
&period,
globus_l_xio_win32_poll,
0);
if(result != GLOBUS_SUCCESS)
{
goto error_periodic;
}
globus_callback_add_wakeup_handler(
globus_l_xio_win32_wakeup_handler, 0);
skip_activate:
GlobusXIOSystemDebugExit();
return GLOBUS_SUCCESS;
error_periodic:
CloseHandle(globus_l_xio_win32_poll_event);
globus_l_xio_win32_poll_event = 0;
error_event:
win32_mutex_destroy(&globus_l_xio_win32_poll_lock);
GlobusXIOSystemDebugExitWithError();
return GLOBUS_FAILURE;
}
int
globus_i_xio_system_common_deactivate(void)
{
GlobusXIOName(globus_i_xio_system_common_deactivate);
GlobusXIOSystemDebugEnter();
globus_module_deactivate(GLOBUS_XIO_MODULE);
GlobusXIOSystemDebugExit();
GlobusDebugDestroy(GLOBUS_XIO_SYSTEM);
return GLOBUS_SUCCESS;
}
static
void
globus_l_xio_win32_blocking_destroy(
globus_l_xio_win32_blocking_info_t * blocking_info)
{
GlobusXIOName(globus_l_xio_win32_blocking_destroy);
GlobusXIOSystemDebugEnter();
WSACloseEvent(blocking_info->event);
globus_free(blocking_info);
GlobusXIOSystemDebugExit();
}
static
void
globus_l_xio_win32_wakeup_handler(
void * user_arg)
{
GlobusXIOName(globus_l_xio_win32_wakeup_handler);
GlobusXIOSystemDebugEnter();
if(globus_l_xio_win32_poll_event != 0)
{
SetEvent(globus_l_xio_win32_poll_event);
}
GlobusXIOSystemDebugExit();
}
static
void
globus_l_xio_win32_blocking_cb(
globus_result_t result,
globus_size_t nbytes,
void * user_arg)
{
globus_l_xio_win32_blocking_info_t * blocking_info;
GlobusXIOName(globus_l_xio_win32_blocking_cb);
GlobusXIOSystemDebugEnter();
blocking_info = (globus_l_xio_win32_blocking_info_t *) user_arg;
if(result != GLOBUS_SUCCESS)
{
blocking_info->error = globus_error_get(result);
}
blocking_info->nbytes = nbytes;
SetEvent(blocking_info->event);
GlobusXIOSystemDebugExit();
}
static
globus_result_t
globus_l_xio_win32_blocking_init(
globus_l_xio_win32_blocking_info_t ** u_blocking_info)
{
globus_l_xio_win32_blocking_info_t * blocking_info;
globus_result_t result;
GlobusXIOName(globus_l_xio_win32_blocking_init);
GlobusXIOSystemDebugEnter();
blocking_info = (globus_l_xio_win32_blocking_info_t *)
globus_calloc(1, sizeof(globus_l_xio_win32_blocking_info_t));
if(!blocking_info)
{
result = GlobusXIOErrorMemory("blocking_info");
goto error_info;
}
blocking_info->event = CreateEvent(0, FALSE, FALSE, 0);
if(blocking_info->event == 0)
{
result = GlobusXIOErrorSystemError(
"CreateEvent", GetLastError());
goto error_create;
}
*u_blocking_info = blocking_info;
GlobusXIOSystemDebugExit();
return GLOBUS_SUCCESS;
error_create:
globus_free(blocking_info);
error_info:
*u_blocking_info = 0;
GlobusXIOSystemDebugExitWithError();
return result;
}
static
void
globus_l_xio_win32_unregister_poll_cb(
void * user_arg)
{
globus_l_shutdown_info_t * info;
GlobusXIOName(globus_l_xio_win32_unregister_poll_cb);
GlobusXIOSystemDebugEnter();
info = (globus_l_shutdown_info_t *) user_arg;
globus_mutex_lock(&info->mutex);
{
CloseHandle(globus_l_xio_win32_poll_event);
globus_l_xio_win32_poll_event = 0;
globus_cond_signal(&info->cond);
}
globus_mutex_unlock(&info->mutex);
GlobusXIOSystemDebugExit();
}
static
void
globus_l_xio_win32_socket_cancel_cb(
globus_xio_operation_t op,
void * user_arg,
globus_xio_error_type_t reason)
{
globus_i_xio_system_op_info_t * op_info;
GlobusXIOName(globus_l_xio_win32_socket_cancel_cb);
GlobusXIOSystemDebugEnter();
op_info = (globus_i_xio_system_op_info_t *) user_arg;
/* this access of the handle is not safe if users destroy it
* with outstanding callbacks. I don't think that is allowed, so we
* should be ok.
*/
win32_mutex_lock(&op_info->handle->lock);
{
if(op_info->state != GLOBUS_I_XIO_SYSTEM_OP_COMPLETE &&
op_info->state != GLOBUS_I_XIO_SYSTEM_OP_CANCELED)
{
op_info->error = reason == GLOBUS_XIO_ERROR_TIMEOUT
? GlobusXIOErrorObjTimeout()
: GlobusXIOErrorObjCanceled();
if(op_info->state == GLOBUS_I_XIO_SYSTEM_OP_NEW)
{
op_info->state = GLOBUS_I_XIO_SYSTEM_OP_CANCELED;
GlobusXIOSystemDebugPrintf(
GLOBUS_I_XIO_SYSTEM_DEBUG_INFO,
("[%s] fd=%lu, Canceling NEW\n",
_xio_name, (unsigned long)op_info->handle->socket));
}
else
{
globus_result_t result;
op_info->state = GLOBUS_I_XIO_SYSTEM_OP_COMPLETE;
GlobusXIOSystemDebugPrintf(
GLOBUS_I_XIO_SYSTEM_DEBUG_INFO,
("[%s] fd=%lu, Canceling Pending\n",
_xio_name, (unsigned long)op_info->handle->socket));
if(op_info->handle->read_info == op_info)
{
op_info->handle->read_info = 0;
}
else
{
globus_assert(op_info->handle->write_info == op_info);
op_info->handle->write_info = 0;
}
/* unregister and kickout now */
result = globus_callback_register_oneshot(
0,
0,
globus_l_xio_win32_socket_kickout,
op_info);
/* really cant do anything else */
if(result != GLOBUS_SUCCESS)
{
globus_panic(
GLOBUS_XIO_SYSTEM_MODULE,
result,
_XIOSL("[%s:%d] Couldn't register callback"),
_xio_name,
__LINE__);
}
}
}
}
win32_mutex_unlock(&op_info->handle->lock);
GlobusXIOSystemDebugExit();
}
int
globus_i_xio_system_common_activate(void)
{
GlobusXIOName(globus_i_xio_system_common_activate);
GlobusDebugInit(GLOBUS_XIO_SYSTEM, TRACE DATA INFO RAW);
GlobusXIOSystemDebugEnter();
/* I am going to leave this memory around after deactivation. To safely
* destroy them, I would need a lot more synchronization of kicked out
* callbacks
*/
if(globus_module_activate(GLOBUS_XIO_MODULE) != GLOBUS_SUCCESS)
{
goto error_activate;
}
if(!globus_l_xio_system_memory_initialized)
{
globus_l_xio_system_memory_initialized = GLOBUS_TRUE;
globus_memory_init(
&globus_i_xio_system_op_info_memory,
sizeof(globus_i_xio_system_op_info_t),
10);
globus_memory_init(
&globus_i_xio_system_iov_memory, sizeof(struct iovec) * 10, 10);
}
globus_l_xio_iov_max = -1;
#ifdef _SC_IOV_MAX
if (globus_l_xio_iov_max == -1)
{
/* If this returns -1, the limit might be indefinite if errno is
* unchanged, but that doesn't mean infinite. It's unclear what
* one is to do in that case
*/
globus_l_xio_iov_max = sysconf(_SC_IOV_MAX);
}
#endif
#ifdef IOV_MAX
if (globus_l_xio_iov_max == -1)
{
globus_l_xio_iov_max = IOV_MAX;
}
#endif
#ifdef _XOPEN_IOV_MAX
if (globus_l_xio_iov_max == -1)
{
globus_l_xio_iov_max = _XOPEN_IOV_MAX;
}
#endif
if (globus_l_xio_iov_max == -1)
{
globus_l_xio_iov_max = 16;
}
GlobusXIOSystemDebugExit();
return GLOBUS_SUCCESS;
error_activate:
GlobusXIOSystemDebugExitWithError();
GlobusDebugDestroy(GLOBUS_XIO_SYSTEM);
return GLOBUS_FAILURE;
}
static
void
globus_l_xio_win32_poll(
void * user_arg)
{
GlobusXIOName(globus_l_xio_win32_poll);
GlobusXIOSystemDebugEnter();
win32_mutex_lock(&globus_l_xio_win32_poll_lock);
{
if(GlobusLWin32PollQueueEmpty())
{
globus_reltime_t time_left;
globus_callback_get_timeout(&time_left);
if(globus_reltime_cmp(&time_left, &globus_i_reltime_zero) > 0)
{
DWORD millis = INFINITE;
if(!globus_time_reltime_is_infinity(&time_left))
{
GlobusTimeReltimeToMilliSec(millis, time_left);
}
globus_l_xio_win32_poll_event_sleeping = GLOBUS_TRUE;
win32_mutex_unlock(&globus_l_xio_win32_poll_lock);
WaitForSingleObject(globus_l_xio_win32_poll_event, millis);
win32_mutex_lock(&globus_l_xio_win32_poll_lock);
globus_l_xio_win32_poll_event_sleeping = GLOBUS_FALSE;
globus_l_xio_win32_poll_event_pending = GLOBUS_FALSE;
}
}
while(!GlobusLWin32PollQueueEmpty())
{
globus_l_xio_win32_poll_entry_t * entry;
GlobusLWin32PollQueueDequeue(entry);
win32_mutex_unlock(&globus_l_xio_win32_poll_lock);
entry->callback(entry->user_arg);
win32_mutex_lock(&globus_l_xio_win32_poll_lock);
entry->next = globus_l_xio_win32_poll_free;
globus_l_xio_win32_poll_free = entry;
if(globus_callback_has_time_expired())
{
break;
}
}
}
win32_mutex_unlock(&globus_l_xio_win32_poll_lock);
GlobusXIOSystemDebugExit();
}
int
globus_i_xio_win32_complete_deactivate(void)
{
globus_result_t result;
globus_l_shutdown_info_t info;
GlobusXIOName(globus_i_xio_win32_complete_deactivate);
GlobusXIOSystemDebugEnter();
if (!globus_i_am_only_thread())
{
goto skip_deactivate;
}
globus_mutex_init(&info.mutex, NULL);
globus_cond_init(&info.cond, NULL);
globus_mutex_lock(&info.mutex);
{
result = globus_callback_unregister(
globus_l_xio_win32_poll_handle,
globus_l_xio_win32_unregister_poll_cb,
&info,
0);
if(result == GLOBUS_SUCCESS)
{
/* unregister callback destroys this event object */
while(globus_l_xio_win32_poll_event != 0)
{
globus_cond_wait(&info.cond, &info.mutex);
}
}
else
{
globus_mutex_unlock(&info.mutex);
globus_l_xio_win32_unregister_poll_cb(&info);
globus_mutex_lock(&info.mutex);
}
}
globus_mutex_unlock(&info.mutex);
globus_cond_destroy(&info.cond);
globus_mutex_destroy(&info.mutex);
win32_mutex_destroy(&globus_l_xio_win32_poll_lock);
while(globus_l_xio_win32_poll_free)
{
globus_l_xio_win32_poll_entry_t * next =
globus_l_xio_win32_poll_free->next;
globus_free(globus_l_xio_win32_poll_free);
globus_l_xio_win32_poll_free = next;
}
skip_deactivate:
GlobusXIOSystemDebugExit();
return GLOBUS_SUCCESS;
}