/* vifm
* Copyright (C) 2020 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 "selector.h"
#include <windows.h>
#include <stddef.h> /* NULL */
#include <stdlib.h> /* free() malloc() */
#include "../compat/reallocarray.h"
/* Selector object. */
struct selector_t
{
selector_item_t *items; /* Set of items to watch. */
int size; /* Used amount of items. */
int capacity; /* Reserved amount of items. */
selector_item_t ready; /* Item that is ready to be read from or invalid. */
};
selector_t *
selector_alloc(void)
{
selector_t *selector = malloc(sizeof(*selector));
if(selector != NULL)
{
selector->items = NULL;
selector->capacity = 0;
selector_reset(selector);
}
return selector;
}
void
selector_free(selector_t *selector)
{
free(selector->items);
free(selector);
}
void
selector_reset(selector_t *selector)
{
selector->size = 0;
selector->ready = INVALID_HANDLE_VALUE;
}
void
selector_add(selector_t *selector, selector_item_t item)
{
int i;
for(i = 0; i < selector->size; ++i)
{
if(selector->items[i] == item)
{
return;
}
}
if(selector->size == selector->capacity)
{
int new_capacity = (selector->capacity == 0 ? 4 : selector->capacity*2);
selector_item_t *items = reallocarray(selector->items, new_capacity,
sizeof(*selector->items));
if(items == NULL)
{
return;
}
selector->items = items;
selector->capacity = new_capacity;
}
selector->items[selector->size++] = item;
}
int
selector_wait(selector_t *selector, int delay)
{
if(delay < 0)
{
delay = 0;
}
DWORD res = WaitForMultipleObjects(selector->size, selector->items, 0, delay);
if(res < WAIT_OBJECT_0 || res >= WAIT_OBJECT_0 + selector->size)
{
selector->ready = INVALID_HANDLE_VALUE;
return 0;
}
selector->ready = selector->items[res - WAIT_OBJECT_0];
return 1;
}
int
selector_is_ready(selector_t *selector, selector_item_t item)
{
return selector->ready != INVALID_HANDLE_VALUE
&& selector->ready == item;
}
/* vim: set tabstop=2 softtabstop=2 shiftwidth=2 noexpandtab cinoptions-=(0 : */
/* vim: set cinoptions+=t0 : */
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