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xrdp-proprietary/common/list16.c

189 lines
4.2 KiB

/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004-2014
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* simple list
*/
#include "arch.h"
#include "os_calls.h"
#include "list16.h"
/*****************************************************************************/
struct list16 *APP_CC
list16_create(void)
{
struct list16 *self;
self = (struct list16 *)g_malloc(sizeof(struct list16), 0);
list16_init(self);
return self;
}
/*****************************************************************************/
void APP_CC
list16_delete(struct list16 *self)
{
if (self == 0)
{
return;
}
list16_deinit(self);
g_free(self);
}
/*****************************************************************************/
void APP_CC
list16_init(struct list16* self)
{
g_memset(self, 0, sizeof(struct list16));
self->max_count = 4;
self->items = self->mitems;
}
/*****************************************************************************/
void APP_CC
list16_deinit(struct list16* self)
{
if (self->items != self->mitems)
{
g_free(self->items);
}
}
/*****************************************************************************/
void APP_CC
list16_add_item(struct list16 *self, tui16 item)
{
tui16 *p;
int i;
if (self->count >= self->max_count)
{
i = self->max_count;
self->max_count += 4;
p = (tui16 *)g_malloc(sizeof(tui16) * self->max_count, 1);
g_memcpy(p, self->items, sizeof(tui16) * i);
if (self->items != self->mitems)
{
g_free(self->items);
}
self->items = p;
}
self->items[self->count] = item;
self->count++;
}
/*****************************************************************************/
tui16 APP_CC
list16_get_item(struct list16 *self, int index)
{
if (index < 0 || index >= self->count)
{
return 0;
}
return self->items[index];
}
/*****************************************************************************/
void APP_CC
list16_clear(struct list16 *self)
{
if (self->items != self->mitems)
{
g_free(self->items);
}
self->count = 0;
self->max_count = 4;
self->items = self->mitems;
}
/*****************************************************************************/
int APP_CC
list16_index_of(struct list16 *self, tui16 item)
{
int i;
for (i = 0; i < self->count; i++)
{
if (self->items[i] == item)
{
return i;
}
}
return -1;
}
/*****************************************************************************/
void APP_CC
list16_remove_item(struct list16 *self, int index)
{
int i;
if (index >= 0 && index < self->count)
{
for (i = index; i < (self->count - 1); i++)
{
self->items[i] = self->items[i + 1];
}
self->count--;
}
}
/*****************************************************************************/
void APP_CC
list16_insert_item(struct list16 *self, int index, tui16 item)
{
tui16 *p;
int i;
if (index == self->count)
{
list16_add_item(self, item);
return;
}
if (index >= 0 && index < self->count)
{
self->count++;
if (self->count > self->max_count)
{
i = self->max_count;
self->max_count += 4;
p = (tui16 *)g_malloc(sizeof(tui16) * self->max_count, 1);
g_memcpy(p, self->items, sizeof(tui16) * i);
if (self->items != self->mitems)
{
g_free(self->items);
}
self->items = p;
}
for (i = (self->count - 2); i >= index; i--)
{
self->items[i + 1] = self->items[i];
}
self->items[index] = item;
}
}