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Member "apr-1.7.0/atomic/netware/apr_atomic.c" (7 Mar 2019, 2492 Bytes) of package /linux/www/apr-1.7.0.tar.bz2:


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    1 /* Licensed to the Apache Software Foundation (ASF) under one or more
    2  * contributor license agreements.  See the NOTICE file distributed with
    3  * this work for additional information regarding copyright ownership.
    4  * The ASF licenses this file to You under the Apache License, Version 2.0
    5  * (the "License"); you may not use this file except in compliance with
    6  * the License.  You may obtain a copy of the License at
    7  *
    8  *     http://www.apache.org/licenses/LICENSE-2.0
    9  *
   10  * Unless required by applicable law or agreed to in writing, software
   11  * distributed under the License is distributed on an "AS IS" BASIS,
   12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   13  * See the License for the specific language governing permissions and
   14  * limitations under the License.
   15  */
   16 
   17 #include "apr_arch_atomic.h"
   18 
   19 #include <stdlib.h>
   20 
   21 APR_DECLARE(apr_status_t) apr_atomic_init(apr_pool_t *pool)
   22 {
   23 #if defined (NEED_ATOMICS_GENERIC64)
   24     return apr__atomic_generic64_init(p);
   25 #else
   26     return APR_SUCCESS;
   27 #endif
   28 }
   29 
   30 APR_DECLARE(apr_uint32_t) apr_atomic_add32(volatile apr_uint32_t *mem, apr_uint32_t val)
   31 {
   32     return atomic_xchgadd((unsigned long *)mem,(unsigned long)val);
   33 }
   34 
   35 APR_DECLARE(void) apr_atomic_sub32(volatile apr_uint32_t *mem, apr_uint32_t val)
   36 {
   37     atomic_sub((unsigned long *)mem,(unsigned long)val);
   38 }
   39 
   40 APR_DECLARE(apr_uint32_t) apr_atomic_inc32(volatile apr_uint32_t *mem)
   41 {
   42     return atomic_xchgadd((unsigned long *)mem, 1);
   43 }
   44 
   45 APR_DECLARE(void) apr_atomic_set32(volatile apr_uint32_t *mem, apr_uint32_t val)
   46 {
   47     *mem = val;
   48 }
   49 
   50 APR_DECLARE(apr_uint32_t) apr_atomic_read32(volatile apr_uint32_t *mem)
   51 {
   52     return *mem;
   53 }
   54 
   55 APR_DECLARE(apr_uint32_t) apr_atomic_cas32(volatile apr_uint32_t *mem, apr_uint32_t with,apr_uint32_t cmp)
   56 {
   57     return atomic_cmpxchg((unsigned long *)mem,(unsigned long)cmp,(unsigned long)with);
   58 }
   59 
   60 APR_DECLARE(apr_uint32_t) apr_atomic_xchg32(volatile apr_uint32_t *mem, apr_uint32_t val)
   61 {
   62     return atomic_xchg((unsigned long *)mem,(unsigned long)val);
   63 }
   64 
   65 APR_DECLARE(int) apr_atomic_dec32(volatile apr_uint32_t *mem) 
   66 {
   67     return (atomic_xchgadd((unsigned long *)mem, 0xFFFFFFFF) - 1);
   68 }
   69 
   70 APR_DECLARE(void *) apr_atomic_casptr(volatile void **mem, void *with, const void *cmp)
   71 {
   72     return (void*)atomic_cmpxchg((unsigned long *)mem,(unsigned long)cmp,(unsigned long)with);
   73 }
   74 
   75 APR_DECLARE(void*) apr_atomic_xchgptr(volatile void **mem, void *with)
   76 {
   77     return (void*)atomic_xchg((unsigned long *)mem,(unsigned long)with);
   78 }