92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/****************************************************************************
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* libs/libc/tls/tls_cleanup.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <assert.h>
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#include <nuttx/sched.h>
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#include <nuttx/tls.h>
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#include <nuttx/pthread.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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void tls_cleanup_push(FAR struct tls_info_s *tls,
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tls_cleanup_t routine, FAR void *arg)
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{
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DEBUGASSERT(tls != NULL);
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DEBUGASSERT(tls->tl_tos < CONFIG_TLS_NCLEANUP);
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if (tls->tl_tos < CONFIG_TLS_NCLEANUP)
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{
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unsigned int ndx = tls->tl_tos;
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tls->tl_tos++;
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tls->tl_stack[ndx].tc_cleaner = routine;
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tls->tl_stack[ndx].tc_arg = arg;
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}
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}
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void tls_cleanup_pop(FAR struct tls_info_s *tls, int execute)
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{
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DEBUGASSERT(tls != NULL);
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if (tls->tl_tos > 0)
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{
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unsigned int ndx;
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/* Get the index to the last cleaner function pushed onto the stack */
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ndx = tls->tl_tos - 1;
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DEBUGASSERT(ndx >= 0 && ndx < CONFIG_TLS_NCLEANUP);
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/* Should we execute the cleanup routine at the top of the stack? */
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if (execute != 0)
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{
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FAR struct tls_cleanup_s *cb;
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/* Yes.. Execute the clean-up routine. */
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cb = &tls->tl_stack[ndx];
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cb->tc_cleaner(cb->tc_arg);
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}
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tls->tl_tos = ndx;
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}
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}
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void tls_cleanup_popall(FAR struct tls_info_s *tls)
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{
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DEBUGASSERT(tls != NULL);
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while (tls->tl_tos > 0)
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{
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tls_cleanup_pop(tls, 1);
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}
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}
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