/* vifm
* Copyright (C) 2015 xaizek.
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "fswatch.h"
#include <windows.h>
#include <stdlib.h> /* free() malloc() */
#include <string.h> /* strdup */
#include "../compat/fs_limits.h"
#include "macros.h"
#include "str.h"
#include "utf8.h"
/* Watcher data. */
struct fswatch_t
{
FILETIME dir_mtime;
HANDLE dir_watcher;
wchar_t *wpath;
};
static int get_dir_mtime(const wchar_t dir_path[], FILETIME *ft);
fswatch_t *
fswatch_create(const char path[])
{
fswatch_t *const w = malloc(sizeof(*w));
if(w == NULL)
{
return NULL;
}
w->wpath = utf8_to_utf16(path);
if(w->wpath == NULL)
{
free(w);
return NULL;
}
if(get_dir_mtime(w->wpath, &w->dir_mtime) != 0)
{
free(w->wpath);
free(w);
return NULL;
}
w->dir_watcher = FindFirstChangeNotificationW(w->wpath, 1,
FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_DIR_NAME |
FILE_NOTIFY_CHANGE_ATTRIBUTES | FILE_NOTIFY_CHANGE_SIZE |
FILE_NOTIFY_CHANGE_LAST_WRITE | FILE_NOTIFY_CHANGE_SECURITY);
if(w->dir_watcher == INVALID_HANDLE_VALUE)
{
free(w->wpath);
free(w);
return NULL;
}
return w;
}
void
fswatch_free(fswatch_t *w)
{
if(w != NULL)
{
FindCloseChangeNotification(w->dir_watcher);
free(w->wpath);
free(w);
}
}
FSWatchState
fswatch_poll(fswatch_t *w)
{
FILETIME ft;
if(get_dir_mtime(w->wpath, &ft) != 0)
{
return FSWS_ERRORED;
}
int changed = CompareFileTime(&w->dir_mtime, &ft) != 0;
w->dir_mtime = ft;
if(WaitForSingleObject(w->dir_watcher, 0) == WAIT_OBJECT_0)
{
FindNextChangeNotification(w->dir_watcher);
changed = 1;
}
return (changed ? FSWS_UPDATED : FSWS_UNCHANGED);
}
/* Gets last directory modification time. Returns non-zero on error, otherwise
* zero is returned. */
static int
get_dir_mtime(const wchar_t dir_path[], FILETIME *ft)
{
wchar_t selfref_path[PATH_MAX + 1];
HANDLE hfile;
int error;
vifm_swprintf(selfref_path, ARRAY_LEN(selfref_path), L"%" WPRINTF_WSTR L"/.",
dir_path);
hfile = CreateFileW(selfref_path, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
if(hfile == INVALID_HANDLE_VALUE)
{
return 1;
}
error = GetFileTime(hfile, NULL, NULL, ft) == FALSE;
CloseHandle(hfile);
return error;
}
/* vim: set tabstop=2 softtabstop=2 shiftwidth=2 noexpandtab cinoptions-=(0 : */
/* vim: set cinoptions+=t0 filetype=c : */
Before first commit, do not forget to setup your git environment:
git config --global user.name "your_name_here"
git config --global user.email "your@email_here"
Clone this repository using HTTP(S):
git clone https://code.reversed.top/user/xaizek/vifm
Clone this repository using ssh (do not forget to upload a key first):
git clone ssh://rocketgit@code.reversed.top/user/xaizek/vifm
You are allowed to anonymously push to this repository.
This means that your pushed commits will automatically be transformed into a
pull request:
... clone the repository ...
... make some changes and some commits ...
git push origin master