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xrdp-proprietary/common/list.c

182 lines
4.0 KiB

/*
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., 675 Mass Ave, Cambridge, MA 02139, USA.
xrdp: A Remote Desktop Protocol server.
Copyright (C) Jay Sorg 2004-2006
simple list
*/
#include "arch.h"
#include "os_calls.h"
#include "list.h"
/*****************************************************************************/
struct list* APP_CC
list_create(void)
{
struct list* self;
self = (struct list*)g_malloc(sizeof(struct list), 1);
self->grow_by = 10;
self->alloc_size = 10;
self->items = (long*)g_malloc(sizeof(long) * 10, 1);
return self;
}
/*****************************************************************************/
void APP_CC
list_delete(struct list* self)
{
int i;
if (self == 0)
{
return;
}
if (self->auto_free)
{
for (i = 0; i < self->count; i++)
{
g_free((void*)self->items[i]);
self->items[i] = 0;
}
}
g_free(self->items);
g_free(self);
}
/*****************************************************************************/
void APP_CC
list_add_item(struct list* self, long item)
{
long* p;
int i;
if (self->count >= self->alloc_size)
{
i = self->alloc_size;
self->alloc_size += self->grow_by;
p = (long*)g_malloc(sizeof(long) * self->alloc_size, 1);
g_memcpy(p, self->items, sizeof(long) * i);
g_free(self->items);
self->items = p;
}
self->items[self->count] = item;
self->count++;
}
/*****************************************************************************/
long APP_CC
list_get_item(struct list* self, int index)
{
if (index < 0 || index >= self->count)
{
return 0;
}
return self->items[index];
}
/*****************************************************************************/
void APP_CC
list_clear(struct list* self)
{
int i;
if (self->auto_free)
{
for (i = 0; i < self->count; i++)
{
g_free((void*)self->items[i]);
self->items[i] = 0;
}
}
g_free(self->items);
self->count = 0;
self->grow_by = 10;
self->alloc_size = 10;
self->items = (long*)g_malloc(sizeof(long) * 10, 1);
}
/*****************************************************************************/
int APP_CC
list_index_of(struct list* self, long item)
{
int i;
for (i = 0; i < self->count; i++)
{
if (self->items[i] == item)
{
return i;
}
}
return -1;
}
/*****************************************************************************/
void APP_CC
list_remove_item(struct list* self, int index)
{
int i;
if (index >= 0 && index < self->count)
{
if (self->auto_free)
{
g_free((void*)self->items[index]);
self->items[index] = 0;
}
for (i = index; i < (self->count - 1); i++)
{
self->items[i] = self->items[i + 1];
}
self->count--;
}
}
/*****************************************************************************/
void APP_CC
list_insert_item(struct list* self, int index, long item)
{
long* p;
int i;
if (index == self->count)
{
list_add_item(self, item);
return;
}
if (index >= 0 && index < self->count)
{
self->count++;
if (self->count > self->alloc_size)
{
i = self->alloc_size;
self->alloc_size += self->grow_by;
p = (long*)g_malloc(sizeof(long) * self->alloc_size, 1);
g_memcpy(p, self->items, sizeof(long) * i);
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;
}
}