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