CWE-ou-minkata/Sources/Plasma/NucleusLib/pnUtilsExe/Private/pnUteTls.cpp

/*==LICENSE==*

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*==LICENSE==*/
/*****************************************************************************
*
*   $/Plasma20/Sources/Plasma/NucleusLib/pnUtilsExe/Private/pnUteTls.cpp
*   
***/

#include "../Pch.h"
#pragma hdrstop


/*****************************************************************************
*
*   Private data
*
***/

static unsigned s_tlsNoBlock = kTlsInvalidValue;


/*****************************************************************************
*
*   Local functions
*
***/

//============================================================================
static void ThreadCapsInitialize () {
    ThreadLocalAlloc(&s_tlsNoBlock);
}

//============================================================================
static void ThreadCapsDestroy () {
    if (s_tlsNoBlock != kTlsInvalidValue) {
        ThreadLocalFree(s_tlsNoBlock);
        s_tlsNoBlock = kTlsInvalidValue;
    }
}

//============================================================================
AUTO_INIT_FUNC(InitThreadCaps) {
    ThreadCapsInitialize();
    atexit(ThreadCapsDestroy);
}


/*****************************************************************************
*
*   Exports
*
***/

//============================================================================
void ThreadAllowBlock () {
    ThreadLocalSetValue(s_tlsNoBlock, (void *) false);
}

//============================================================================
void ThreadDenyBlock () {
    ThreadLocalSetValue(s_tlsNoBlock, (void *) true);
}

//============================================================================
void ThreadAssertCanBlock (const char file[], int line) {
    if (ThreadLocalGetValue(s_tlsNoBlock))
        ErrorAssert(line, file, "This thread may not block");
}