nix-config/.archlinux/PKGBUILDs/xeventbind/main.c
Donovan Glover 39144c4ca0
PKGBUILDs: Rename tari-util-xeventbind to xeventbind
Since Tari will work as an independent PKGBUILD now, and since
xeventbind is an individual program not related to Tari, it makes
sense to remove the associated prefix.
2018-12-08 02:04:08 -05:00

108 lines
3.0 KiB
C
Vendored

/*
* The MIT License (MIT)
*
* Copyright (c) 2016 Olaf Tomalka
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <assert.h>
#include "xeb_event_types.h"
#include "xeb_handler.h"
struct arguments {
xeb_event_type event_type;
char *script_path;
};
struct event_map {
char *str;
xeb_event_type event;
};
static struct event_map mapping[] = {
{"resolution", ResolutionChange}
};
void print_usage(char *path) {
fprintf(stderr, "Usage: %s event_type script_path\n", path);
fprintf(stderr, "Event types:\n");
size_t mapping_size = sizeof(mapping) / sizeof(mapping[0]);
for (int i = 0; i < mapping_size; i++) {
fprintf(stderr, "\t%s\n", mapping[i].str);
}
exit(EXIT_FAILURE);
}
void parse_args(int argc, char** argv, struct arguments *args) {
if (argc != 3)
print_usage(argv[0]);
size_t mapping_size = sizeof(mapping) / sizeof(mapping[0]);
int found = 0;
for (int i = 0; i < mapping_size; i++) {
if (strcmp(argv[1], mapping[i].str) == 0) {
found = 1;
args->event_type = mapping[i].event;
break;
}
}
if (!found)
print_usage(argv[0]);
args->script_path = argv[2];
}
int handle_callback(xeb_event_type event, void *data) {
assert(data);
struct arguments *args = data;
assert(args->event_type == event);
pid_t pid = fork();
int err;
switch (pid) {
case -1:
perror("Failed to fork\n");
exit(EXIT_FAILURE);
break;
case 0: // Child
err = execlp(args->script_path, NULL);
if (err == -1) {
perror("Failed to open callback script\n");
exit(EXIT_FAILURE);
}
break;
}
}
int main(int argc, char **argv) {
struct arguments args;
int err;
parse_args(argc, argv, &args);
xeb_add_callback(args.event_type, handle_callback, &args);
return xeb_loop() ? EXIT_FAILURE : EXIT_SUCCESS;
}