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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* OS X Server Event Handling
*
* Copyright 2012 Corey Clayton <can.of.tuna@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <freerdp/config.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "mf_event.h"
#include <freerdp/log.h>
#define TAG SERVER_TAG("mac")
int mf_is_event_set(mfEventQueue* event_queue)
{
fd_set rfds;
int num_set;
struct timeval time = { 0 };
FD_ZERO(&rfds);
FD_SET(event_queue->pipe_fd[0], &rfds);
num_set = select(event_queue->pipe_fd[0] + 1, &rfds, 0, 0, &time);
return (num_set == 1);
}
void mf_signal_event(mfEventQueue* event_queue)
{
int length;
length = write(event_queue->pipe_fd[1], "sig", 4);
if (length != 4)
WLog_ERR(TAG, "mf_signal_event: error");
}
void mf_set_event(mfEventQueue* event_queue)
{
int length;
length = write(event_queue->pipe_fd[1], "sig", 4);
if (length != 4)
WLog_ERR(TAG, "mf_set_event: error");
}
void mf_clear_events(mfEventQueue* event_queue)
{
int length;
while (mf_is_event_set(event_queue))
{
length = read(event_queue->pipe_fd[0], &length, 4);
if (length != 4)
WLog_ERR(TAG, "mf_clear_event: error");
}
}
void mf_clear_event(mfEventQueue* event_queue)
{
int length;
length = read(event_queue->pipe_fd[0], &length, 4);
if (length != 4)
WLog_ERR(TAG, "mf_clear_event: error");
}
void mf_event_push(mfEventQueue* event_queue, mfEvent* event)
{
pthread_mutex_lock(&(event_queue->mutex));
if (event_queue->count >= event_queue->size)
{
event_queue->size *= 2;
event_queue->events =
(mfEvent**)realloc((void*)event_queue->events, sizeof(mfEvent*) * event_queue->size);
}
event_queue->events[(event_queue->count)++] = event;
pthread_mutex_unlock(&(event_queue->mutex));
mf_set_event(event_queue);
}
mfEvent* mf_event_peek(mfEventQueue* event_queue)
{
mfEvent* event;
pthread_mutex_lock(&(event_queue->mutex));
if (event_queue->count < 1)
event = NULL;
else
event = event_queue->events[0];
pthread_mutex_unlock(&(event_queue->mutex));
return event;
}
mfEvent* mf_event_pop(mfEventQueue* event_queue)
{
mfEvent* event;
pthread_mutex_lock(&(event_queue->mutex));
if (event_queue->count < 1)
return NULL;
/* remove event signal */
mf_clear_event(event_queue);
event = event_queue->events[0];
(event_queue->count)--;
memmove(&event_queue->events[0], &event_queue->events[1], event_queue->count * sizeof(void*));
pthread_mutex_unlock(&(event_queue->mutex));
return event;
}
mfEventRegion* mf_event_region_new(int x, int y, int width, int height)
{
mfEventRegion* event_region = malloc(sizeof(mfEventRegion));
if (event_region != NULL)
{
event_region->x = x;
event_region->y = y;
event_region->width = width;
event_region->height = height;
}
return event_region;
}
void mf_event_region_free(mfEventRegion* event_region)
{
free(event_region);
}
mfEvent* mf_event_new(int type)
{
mfEvent* event = malloc(sizeof(mfEvent));
if (!event)
return NULL;
event->type = type;
return event;
}
void mf_event_free(mfEvent* event)
{
free(event);
}
mfEventQueue* mf_event_queue_new()
{
mfEventQueue* event_queue = malloc(sizeof(mfEventQueue));
if (event_queue != NULL)
{
event_queue->pipe_fd[0] = -1;
event_queue->pipe_fd[1] = -1;
event_queue->size = 16;
event_queue->count = 0;
event_queue->events = (mfEvent**)malloc(sizeof(mfEvent*) * event_queue->size);
if (pipe(event_queue->pipe_fd) < 0)
{
free(event_queue);
return NULL;
}
pthread_mutex_init(&(event_queue->mutex), NULL);
}
return event_queue;
}
void mf_event_queue_free(mfEventQueue* event_queue)
{
if (event_queue->pipe_fd[0] != -1)
{
close(event_queue->pipe_fd[0]);
event_queue->pipe_fd[0] = -1;
}
if (event_queue->pipe_fd[1] != -1)
{
close(event_queue->pipe_fd[1]);
event_queue->pipe_fd[1] = -1;
}
pthread_mutex_destroy(&(event_queue->mutex));
}
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