mirror of
https://github.com/ptitSeb/Serious-Engine
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37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
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#ifndef LWSDK_MTUTIL_H
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#define LWSDK_MTUTIL_H
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/****
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*
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* Some plugin services may be called from within a LW render thread which
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* implies a need for methods for a plugin to protect its global data. The
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* MTUtil functions provide that service thus allowing a plugin to be threaad
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* safe.
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*
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* USAGE:
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*
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* create - this method returns a LWMTUtilID which must be passed to the lock and
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* unlock methods. Each MTUtilID allows up to 10 independent mutexes
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* (binary semaphores) to be used, indexed 0 - 9. Return NULL on failure.
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*
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* lock - takes a MTUtilID and a mutex index and blocks until the mutex becomes
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* available. Returns success.
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*
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* unlock - releases the mutex specified by the index. Returns success.
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*/
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typedef void * LWMTUtilID;
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#define LWMTUTILFUNCS_GLOBAL "MultiThreading Utilities"
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typedef struct st_LWMTUtilFuncs {
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LWMTUtilID (*create) (void);
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void (*destroy) (LWMTUtilID mtid);
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int (*lock) (LWMTUtilID mtid, int mutexID);
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int (*unlock) (LWMTUtilID mtid, int mutexID);
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} LWMTUtilFuncs;
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#endif
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