# semaphore.h

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    00001 /*
    00002   Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization
    00003   dedicated to making software imaging solutions freely available.
    00004
    00005   You may not use this file except in compliance with the License.
    00006   obtain a copy of the License at
    00007
    00008     http://www.imagemagick.org/script/license.php
    00009
    00010   Unless required by applicable law or agreed to in writing, software
    00011   distributed under the License is distributed on an "AS IS" BASIS,
    00012   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    00013   See the License for the specific language governing permissions and
    00014   limitations under the License.
    00015
    00016   MagickCore methods to lock and unlock semaphores.
    00017 */
    00018 #ifndef _MAGICKCORE_SEMAPHORE_H
    00019 #define _MAGICKCORE_SEMAPHORE_H
    00020
    00021 #if defined(__cplusplus) || defined(c_plusplus)
    00022 extern "C" {
    00023 #endif
    00024
    00025 typedef struct SemaphoreInfo
    00026   SemaphoreInfo;
    00027
    00028 extern MagickExport MagickBooleanType
    00029   LockSemaphoreInfo(SemaphoreInfo *),
    00030   UnlockSemaphoreInfo(SemaphoreInfo *);
    00031
    00032 extern MagickExport SemaphoreInfo
    00033   *AllocateSemaphoreInfo(void),
    00034   *DestroySemaphoreInfo(SemaphoreInfo *);
    00035
    00036 extern MagickExport void
    00037   AcquireSemaphoreInfo(SemaphoreInfo **),
    00038   DestroySemaphore(void),
    00039   InitializeSemaphore(void),
    00040   RelinquishSemaphoreInfo(SemaphoreInfo *);
    00041
    00042 #if defined(__cplusplus) || defined(c_plusplus)
    00043 }
    00044 #endif
    00045
    00046 #endif