mirror of https://gerrit.osmocom.org/libosmocore
115 lines
2.7 KiB
C
115 lines
2.7 KiB
C
/*! \file pseudotalloc.c
|
|
* overly simplistic talloc replacement for deeply embedded
|
|
* microcontrollers. Obviously this has none of the properties of real
|
|
* talloc, it is particualrly not hierarchical at all.
|
|
*
|
|
* (C) 2017 by Harald Welte <laforge@gnumonks.org>
|
|
* All Rights Reserved
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "talloc.h"
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
void *_talloc_zero(const void *ctx, size_t size, const char *name)
|
|
{
|
|
void *p = pseudotalloc_malloc(size);
|
|
if (!p)
|
|
return NULL;
|
|
memset(p, 0, size);
|
|
return p;
|
|
}
|
|
|
|
int _talloc_free(void *ptr, const char *location)
|
|
{
|
|
pseudotalloc_free(ptr);
|
|
return 0;
|
|
}
|
|
|
|
void *talloc_named_const(const void *context, size_t size, const char *name)
|
|
{
|
|
return pseudotalloc_malloc(size);
|
|
}
|
|
|
|
void talloc_set_name_const(const void *ptr, const char *name)
|
|
{
|
|
}
|
|
|
|
char *talloc_strdup(const void *context, const char *p)
|
|
{
|
|
char *ptr;
|
|
size_t len;
|
|
|
|
if (!p)
|
|
return NULL;
|
|
len = strlen(p);
|
|
|
|
ptr = talloc_size(context, len+1);
|
|
if (!ptr)
|
|
return NULL;
|
|
memcpy(ptr, p, len+1);
|
|
|
|
return ptr;
|
|
}
|
|
|
|
void *talloc_pool(const void *context, size_t size)
|
|
{
|
|
return (void *) context;
|
|
}
|
|
|
|
void *_talloc_array(const void *ctx, size_t el_size, unsigned count, const char *name)
|
|
{
|
|
return talloc_size(ctx, el_size * count);
|
|
}
|
|
|
|
void *_talloc_zero_array(const void *ctx, size_t el_size, unsigned count, const char *name)
|
|
{
|
|
return talloc_zero_size(ctx, el_size * count);
|
|
}
|
|
|
|
char *talloc_asprintf(const void *ctx, const char *fmt, ...)
|
|
{
|
|
char *buf;
|
|
size_t len = 128;
|
|
va_list args;
|
|
va_start(args, fmt);
|
|
|
|
buf = talloc_size(ctx, len);
|
|
if (len < vsnprintf(buf, len, fmt, args))
|
|
strcpy(&buf[len-6], "[...]");
|
|
|
|
va_end(args);
|
|
return buf;
|
|
}
|
|
|
|
void *_talloc_steal_loc(const void *new_ctx, const void *obj, const char *location)
|
|
{
|
|
/* as we don't do hierarchical allocations, this is simply a NOP */
|
|
return (void *)obj;
|
|
}
|
|
|
|
char *talloc_vasprintf(const void *t, const char *fmt, va_list ap)
|
|
{
|
|
/* we have a hard-coded maximum string length of 128 bytes in this pseudo implementation */
|
|
char *buf = pseudotalloc_malloc(128);
|
|
if (!buf)
|
|
return NULL;
|
|
vsnprintf(buf, 128, fmt, ap);
|
|
return buf;
|
|
}
|