2015-07-27 18:47:47 +02:00

115 lines
2.8 KiB
C

/*
* This file is part of Moonlight Embedded.
*
* Copyright (C) 2015 Iwan Timmer
*
* Moonlight is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Moonlight 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Moonlight; if not, see <http://www.gnu.org/licenses/>.
*/
#include "loop.h"
#include "global.h"
#include <sys/stat.h>
#include <sys/signalfd.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <poll.h>
#include <signal.h>
#include <string.h>
static struct pollfd* fds = NULL;
static FdHandler* fdHandlers = NULL;
static int numFds = 0;
static int sigFd;
static int loop_sig_handler(int fd) {
struct signalfd_siginfo info;
read(fd, &info, sizeof(info));
switch (info.ssi_signo) {
case SIGINT:
case SIGTERM:
case SIGQUIT:
case SIGHUP:
return LOOP_RETURN;
}
return LOOP_OK;
}
void loop_add_fd(int fd, FdHandler handler, int events) {
int fdindex = numFds;
numFds++;
if (fds == NULL) {
fds = malloc(sizeof(struct pollfd));
fdHandlers = malloc(sizeof(FdHandler*));
} else {
fds = realloc(fds, sizeof(struct pollfd)*numFds);
fdHandlers = realloc(fdHandlers, sizeof(FdHandler*)*numFds);
}
if (fds == NULL || fdHandlers == NULL) {
fprintf(stderr, "Not enough memory\n");
exit(EXIT_FAILURE);
}
fds[fdindex].fd = fd;
fds[fdindex].events = events;
fdHandlers[fdindex] = handler;
}
void loop_remove_fd(int fd) {
numFds--;
int fdindex;
for (int i=0;i<numFds;i++) {
if (fds[i].fd = fd)
fdindex = i;
break;
}
if (fdindex != numFds && numFds > 0) {
memcpy(&fds[fdindex], &fds[numFds], sizeof(struct pollfd));
memcpy(&fdHandlers[fdindex], &fdHandlers[numFds], sizeof(FdHandler*));
}
}
void loop_main() {
main_thread_id = pthread_self();
sigset_t sigset;
sigemptyset(&sigset);
sigaddset(&sigset, SIGHUP);
sigaddset(&sigset, SIGTERM);
sigaddset(&sigset, SIGINT);
sigaddset(&sigset, SIGQUIT);
sigprocmask(SIG_BLOCK, &sigset, NULL);
sigFd = signalfd(-1, &sigset, 0);
loop_add_fd(sigFd, loop_sig_handler, POLLIN | POLLERR | POLLHUP);
//static bool evdev_poll(bool (*handler) (struct input_event*, struct input_device*)) {
while (poll(fds, numFds, -1)) {
for (int i=0;i<numFds;i++) {
if (fds[i].revents > 0) {
int ret = fdHandlers[i](fds[i].fd);
if (ret == LOOP_RETURN) {
return;
}
break;
}
}
}
}