nuttx/libs/libc/tls/tls_cleanup.c
Shoukui Zhang 2c543c27bf Fix greater-than-or-equal-to-zero issue
unsigned_compare: This greater-than-or-equal-to-zero comparison without a signed value is always true. ndx >= 0U

Signed-off-by: Shoukui Zhang <zhangshoukui@xiaomi.com>
2024-09-20 12:34:27 +02:00

92 lines
2.6 KiB
C

/****************************************************************************
* libs/libc/tls/tls_cleanup.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <assert.h>
#include <nuttx/sched.h>
#include <nuttx/tls.h>
#include <nuttx/pthread.h>
/****************************************************************************
* Public Functions
****************************************************************************/
void tls_cleanup_push(FAR struct tls_info_s *tls,
tls_cleanup_t routine, FAR void *arg)
{
DEBUGASSERT(tls != NULL);
DEBUGASSERT(tls->tl_tos < CONFIG_TLS_NCLEANUP);
if (tls->tl_tos < CONFIG_TLS_NCLEANUP)
{
unsigned int ndx = tls->tl_tos;
tls->tl_tos++;
tls->tl_stack[ndx].tc_cleaner = routine;
tls->tl_stack[ndx].tc_arg = arg;
}
}
void tls_cleanup_pop(FAR struct tls_info_s *tls, int execute)
{
DEBUGASSERT(tls != NULL);
if (tls->tl_tos > 0)
{
unsigned int ndx;
/* Get the index to the last cleaner function pushed onto the stack */
ndx = tls->tl_tos - 1;
DEBUGASSERT(ndx < CONFIG_TLS_NCLEANUP);
/* Should we execute the cleanup routine at the top of the stack? */
if (execute != 0)
{
FAR struct tls_cleanup_s *cb;
/* Yes.. Execute the clean-up routine. */
cb = &tls->tl_stack[ndx];
cb->tc_cleaner(cb->tc_arg);
}
tls->tl_tos = ndx;
}
}
void tls_cleanup_popall(FAR struct tls_info_s *tls)
{
DEBUGASSERT(tls != NULL);
while (tls->tl_tos > 0)
{
tls_cleanup_pop(tls, 1);
}
}