diff options
author | explosion-mental <explosion0mental@gmail.com> | 2022-04-26 20:43:27 -0500 |
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committer | GitHub <noreply@github.com> | 2022-04-27 01:43:27 +0000 |
commit | f9662efb1f522c1b554f789659d261a97a1918f5 (patch) | |
tree | 80107d052d8aeb68c9f4c3a874ce889f6040e562 /autoreload_inotify.c | |
parent | 29c6b1456e8bb46fbee0e8ea962553cb9f1230a3 (diff) |
merge autoreload_{inotify,nop}.c into autoreload.c (#263)
Diffstat (limited to 'autoreload_inotify.c')
-rw-r--r-- | autoreload_inotify.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/autoreload_inotify.c b/autoreload_inotify.c deleted file mode 100644 index 87ce369..0000000 --- a/autoreload_inotify.c +++ /dev/null @@ -1,111 +0,0 @@ -/* Copyright 2017 Max Voit, Bert Muennich - * - * This file is a part of nsxiv. - * - * nsxiv 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 2 of the License, - * or (at your option) any later version. - * - * nsxiv 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 nsxiv. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "nsxiv.h" - -#include <errno.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <sys/inotify.h> - -static union { - char d[4096]; /* aligned buffer */ - struct inotify_event e; -} buf; - -void arl_init(arl_t *arl) -{ - arl->fd = inotify_init1(IN_CLOEXEC | IN_NONBLOCK); - arl->wd_dir = arl->wd_file = -1; - if (arl->fd == -1) - error(0, 0, "Could not initialize inotify, no automatic image reloading"); -} - -CLEANUP void arl_cleanup(arl_t *arl) -{ - if (arl->fd != -1) - close(arl->fd); - free(arl->filename); -} - -static void rm_watch(int fd, int *wd) -{ - if (*wd != -1) { - inotify_rm_watch(fd, *wd); - *wd = -1; - } -} - -static void add_watch(int fd, int *wd, const char *path, uint32_t mask) -{ - *wd = inotify_add_watch(fd, path, mask); - if (*wd == -1) - error(0, errno, "inotify: %s", path); -} - -void arl_setup(arl_t *arl, const char *filepath) -{ - char *base = strrchr(filepath, '/'); - - if (arl->fd == -1) - return; - - rm_watch(arl->fd, &arl->wd_dir); - rm_watch(arl->fd, &arl->wd_file); - - add_watch(arl->fd, &arl->wd_file, filepath, IN_CLOSE_WRITE | IN_DELETE_SELF); - - free(arl->filename); - arl->filename = estrdup(filepath); - - if (base != NULL) { - arl->filename[++base - filepath] = '\0'; - add_watch(arl->fd, &arl->wd_dir, arl->filename, IN_CREATE | IN_MOVED_TO); - strcpy(arl->filename, base); - } -} - -bool arl_handle(arl_t *arl) -{ - bool reload = false; - char *ptr; - const struct inotify_event *e; - - while (true) { - ssize_t len = read(arl->fd, buf.d, sizeof(buf.d)); - - if (len == -1) { - if (errno == EINTR) - continue; - break; - } - for (ptr = buf.d; ptr < buf.d + len; ptr += sizeof(*e) + e->len) { - e = (const struct inotify_event*) ptr; - if (e->wd == arl->wd_file && (e->mask & IN_CLOSE_WRITE)) { - reload = true; - } else if (e->wd == arl->wd_file && (e->mask & IN_DELETE_SELF)) { - rm_watch(arl->fd, &arl->wd_file); - } else if (e->wd == arl->wd_dir && (e->mask & (IN_CREATE | IN_MOVED_TO))) { - if (STREQ(e->name, arl->filename)) - reload = true; - } - } - } - return reload; -} |