mirror of https://gitee.com/openkylin/apr.git
116 lines
3.5 KiB
C
116 lines
3.5 KiB
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.
|
|
*/
|
|
|
|
#include "apr_arch_atomic.h"
|
|
|
|
APR_DECLARE(apr_status_t) apr_atomic_init(apr_pool_t *p)
|
|
{
|
|
#if defined (NEED_ATOMICS_GENERIC64)
|
|
return apr__atomic_generic64_init(p);
|
|
#else
|
|
return APR_SUCCESS;
|
|
#endif
|
|
}
|
|
|
|
APR_DECLARE(apr_uint32_t) apr_atomic_add32(volatile apr_uint32_t *mem, apr_uint32_t val)
|
|
{
|
|
#if (defined(_M_IA64) || defined(_M_AMD64))
|
|
return InterlockedExchangeAdd(mem, val);
|
|
#else
|
|
return InterlockedExchangeAdd((long *)mem, val);
|
|
#endif
|
|
}
|
|
|
|
/* Of course we want the 2's compliment of the unsigned value, val */
|
|
#ifdef _MSC_VER
|
|
#pragma warning(disable: 4146)
|
|
#endif
|
|
|
|
APR_DECLARE(void) apr_atomic_sub32(volatile apr_uint32_t *mem, apr_uint32_t val)
|
|
{
|
|
#if (defined(_M_IA64) || defined(_M_AMD64))
|
|
InterlockedExchangeAdd(mem, -val);
|
|
#else
|
|
InterlockedExchangeAdd((long *)mem, -val);
|
|
#endif
|
|
}
|
|
|
|
APR_DECLARE(apr_uint32_t) apr_atomic_inc32(volatile apr_uint32_t *mem)
|
|
{
|
|
/* we return old value, win32 returns new value :( */
|
|
#if (defined(_M_IA64) || defined(_M_AMD64)) && !defined(RC_INVOKED)
|
|
return InterlockedIncrement(mem) - 1;
|
|
#else
|
|
return InterlockedIncrement((long *)mem) - 1;
|
|
#endif
|
|
}
|
|
|
|
APR_DECLARE(int) apr_atomic_dec32(volatile apr_uint32_t *mem)
|
|
{
|
|
#if (defined(_M_IA64) || defined(_M_AMD64)) && !defined(RC_INVOKED)
|
|
return InterlockedDecrement(mem);
|
|
#else
|
|
return InterlockedDecrement((long *)mem);
|
|
#endif
|
|
}
|
|
|
|
APR_DECLARE(void) apr_atomic_set32(volatile apr_uint32_t *mem, apr_uint32_t val)
|
|
{
|
|
#if (defined(_M_IA64) || defined(_M_AMD64)) && !defined(RC_INVOKED)
|
|
InterlockedExchange(mem, val);
|
|
#else
|
|
InterlockedExchange((long*)mem, val);
|
|
#endif
|
|
}
|
|
|
|
APR_DECLARE(apr_uint32_t) apr_atomic_read32(volatile apr_uint32_t *mem)
|
|
{
|
|
return *mem;
|
|
}
|
|
|
|
APR_DECLARE(apr_uint32_t) apr_atomic_cas32(volatile apr_uint32_t *mem, apr_uint32_t with,
|
|
apr_uint32_t cmp)
|
|
{
|
|
#if (defined(_M_IA64) || defined(_M_AMD64)) && !defined(RC_INVOKED)
|
|
return InterlockedCompareExchange(mem, with, cmp);
|
|
#else
|
|
return InterlockedCompareExchange((long*)mem, with, cmp);
|
|
#endif
|
|
}
|
|
|
|
APR_DECLARE(void *) apr_atomic_casptr(volatile void **mem, void *with, const void *cmp)
|
|
{
|
|
#if (defined(_M_IA64) || defined(_M_AMD64)) && !defined(RC_INVOKED)
|
|
return InterlockedCompareExchangePointer((void* volatile*)mem, with, (void*)cmp);
|
|
#else
|
|
return InterlockedCompareExchangePointer((void**)mem, with, (void*)cmp);
|
|
#endif
|
|
}
|
|
|
|
APR_DECLARE(apr_uint32_t) apr_atomic_xchg32(volatile apr_uint32_t *mem, apr_uint32_t val)
|
|
{
|
|
#if (defined(_M_IA64) || defined(_M_AMD64)) && !defined(RC_INVOKED)
|
|
return InterlockedExchange(mem, val);
|
|
#else
|
|
return InterlockedExchange((long *)mem, val);
|
|
#endif
|
|
}
|
|
|
|
APR_DECLARE(void*) apr_atomic_xchgptr(volatile void **mem, void *with)
|
|
{
|
|
return InterlockedExchangePointer((void**)mem, with);
|
|
}
|