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/*
Copyright (C) 2009 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "common.h"
#include "event_sources.h"
#include "debug.h"
#include "utils.h"
bool EventSources_p::process_system_events()
{
MSG msg;
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
if (msg.message == WM_QUIT) {
return true;
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return false;
}
void EventSources_p::add_event(HANDLE event, EventSource* source)
{
int size = _events.size();
_events.resize(size + 1);
_handles.resize(size + 1);
_events[size] = source;
_handles[size] = event;
}
void EventSources_p::remove_event(EventSource* source)
{
int size = _events.size();
for (int i = 0; i < size; i++) {
if (_events[i] == source) {
for (i++; i < size; i++) {
_events[i - 1] = _events[i];
_handles[i - 1] = _handles[i];
}
_events.resize(size - 1);
_handles.resize(size - 1);
return;
}
}
THROW("event not found");
}
EventSources::EventSources()
{
}
EventSources::~EventSources()
{
}
bool EventSources::wait_events(int timeout_ms)
{
if (_handles.empty()) {
if (WaitMessage()) {
return process_system_events();
} else {
THROW("wait failed %d", GetLastError());
}
}
DWORD wait_res = MsgWaitForMultipleObjectsEx(_handles.size(), &_handles[0], timeout_ms,
QS_ALLINPUT, 0);
if (wait_res == WAIT_TIMEOUT) {
return false;
}
if (wait_res == WAIT_FAILED) {
THROW("wait failed %d", GetLastError());
}
size_t event_index = wait_res - WAIT_OBJECT_0;
if (event_index == _handles.size()) {
return process_system_events();
} else if ((event_index >= 0) && (event_index < (int)_handles.size())) {
_events[event_index]->action();
return false;
} else {
THROW("invalid event id");
}
}
void EventSources::add_socket(Socket& socket)
{
HANDLE event = CreateEvent(NULL, FALSE, FALSE, NULL);
if (!event) {
THROW("create event failed");
}
if (WSAEventSelect(socket.get_socket(), event,
FD_READ | FD_WRITE | FD_CLOSE) == SOCKET_ERROR) {
CloseHandle(event);
THROW("event select failed");
}
add_event(event, &socket);
}
void EventSources::remove_socket(Socket& socket)
{
int size = _events.size();
for (int i = 0; i < size; i++) {
if (_events[i] == &socket) {
if (WSAEventSelect(socket.get_socket(), NULL, 0) == SOCKET_ERROR) {
THROW("event select failed");
}
u_long arg = 0;
if (ioctlsocket(socket.get_socket(), FIONBIO, &arg) == SOCKET_ERROR) {
THROW("set blocking mode failed");
}
CloseHandle(_handles[i]);
for (i++; i < size; i++) {
_events[i - 1] = _events[i];
_handles[i - 1] = _handles[i];
}
_events.resize(size - 1);
_handles.resize(size - 1);
return;
}
}
THROW("socket not found");
}
void EventSources::add_handle(Handle& handle)
{
add_event(handle.get_handle(), &handle);
}
void EventSources::remove_handle(Handle& handle)
{
remove_event(&handle);
}
Handle_p::Handle_p()
{
if (!(_event = CreateEvent(NULL, FALSE, FALSE, NULL))) {
THROW("create event failed");
}
}
Handle_p::~Handle_p()
{
CloseHandle(_event);
}
void EventSources::add_trigger(Trigger& trigger)
{
add_event(trigger.get_handle(), &trigger);
}
void EventSources::remove_trigger(Trigger& trigger)
{
remove_event(&trigger);
}
EventSources::Trigger::Trigger()
{
}
EventSources::Trigger::~Trigger()
{
}
void EventSources::Trigger::trigger()
{
if (!SetEvent(_event)) {
THROW("set event failed");
}
}
void EventSources::Trigger::reset()
{
if (!ResetEvent(_event)) {
THROW("set event failed");
}
}
void EventSources::Trigger::action()
{
on_event();
}
void EventSources::add_file(File& file)
{
}
void EventSources::remove_file(File& file)
{
}
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