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download commemoryfailpoint.cpp
Language: C++
Copyright: (c) 2006 Microsoft Corporation. All rights reserved.
LOC: 18
Project Info
Shared Source Common Language Infrastructure(sscli20)
Server: Shared Source Common Language Infrastructure
Type: filesystem
...sscli20\sscli20\clr\src\vm\
   appdomain.cpp
    appdomain.hpp
    appdomain.inl
    appdomainhelper.cpp
    appdomainhelper.h
    appdomainnative.cpp
    appdomainnative.hpp
    appdomainstack.cpp
    appdomainstack.h
    appdomainstack.inl
    argslot.h
    array.cpp
    array.h
    assembly.cpp
    assembly.hpp
    assemblyname.cpp
    assemblyname.hpp
    assemblynative.cpp
    assemblynative.hpp
    assemblysink.cpp
    assemblysink.h
    assemblyspec.cpp
    assemblyspec.hpp
    binder.cpp
    binder.h
    cachelinealloc.cpp
    cachelinealloc.h
    ceeload.cpp
    ceeload.h
    ceeload.inl
    ceemain.cpp
    ceemain.h
    certificatecache.cpp
    certificatecache.h
    cgensys.h
    class.cpp
    class.h
    class.inl
    classloadlevel.h
    classnames.h
    clrex.cpp
    clrex.h
    clsload.cpp
    clsload.hpp
    clsload.inl
    codeman.cpp
    codeman.h
    codeman.inl
    comarrayhelpers.cpp
    comarrayhelpers.h
    comarrayinfo.cpp
    comarrayinfo.h
    comcallablewrapper.cpp
    comcallablewrapper.h
    comcurrency.cpp
    comcurrency.h
    comdatetime.cpp
    comdatetime.h
    comdecimal.cpp
    comdecimal.h
    comdelegate.cpp
    comdelegate.h
    comdynamic.cpp
    comdynamic.h
    comisolatedstorage.cpp
    comisolatedstorage.h
    commemoryfailpoint.cpp
    commemoryfailpoint.h
    commethodrental.cpp
    commethodrental.h
    commodule.cpp
    commodule.h
    common.cpp
    common.h
    comnumber.cpp
    comnumber.h
    comobject.cpp
    comobject.h
    comreflectioncache.hpp
    comreflectioncommon.cpp
    comreflectioncommon.h
    comstreams.cpp
    comstreams.h
    comstring.cpp
    comstring.h
    comstringbuffer.cpp
    comstringbuffer.h
    comstringcommon.h
    comsynchronizable.cpp
    comsynchronizable.h
    comsystem.cpp
    comsystem.h
    comthreadpool.cpp
    comthreadpool.h
    comutilnative.cpp
    comutilnative.h
    comvarargs.cpp
    comvarargs.h
    comvariant.cpp
    comvariant.h
    comwaithandle.cpp
    comwaithandle.h
    confighelper.cpp
    confighelper.h
    ...inedexecutionregion.cpp
    ...rainedexecutionregion.h
    context.h
    contexts.cpp
    contractimpl.cpp
    contractimpl.h
    corhost.cpp
    crossdomaincalls.cpp
    crossdomaincalls.h
    crst.cpp
    crst.h
    cryptapis.h
    ctxtcall.h
    customattribute.cpp
    customattribute.h
    custommarshalerinfo.cpp
    custommarshalerinfo.h
    dbginterface.h
    debugdebugger.cpp
    debugdebugger.h
    debughelp.cpp
    debuginfostore.cpp
    debuginfostore.h
    decodemd.cpp
    decodemd.h
    delegateinfo.h
    dllimport.cpp
    dllimport.h
    dllimportcallback.cpp
    dllimportcallback.h
    domainfile.cpp
    domainfile.h
    domainfile.inl
    dynamicmethod.cpp
    dynamicmethod.h
    ecall.cpp
    ecall.h
    ecmakey.h
    eecallconv.h
    eeconfig.cpp
    eeconfig.h
    eeconfigfactory.cpp
    eeconfigfactory.h
    eecontract.cpp
    eecontract.h
    eecontract.inl
    eedbginterface.h
    eedbginterfaceimpl.cpp
    eedbginterfaceimpl.h
    eedbginterfaceimpl.inl
    eehash.cpp
    eehash.h
    eemessagebox.cpp
    eemessagebox.h
    eepolicy.cpp
    eepolicy.h
    eeprofinterfaces.h
    eeprofinterfaces.inl
    ...rofinterfacewrapper.inl
    eetwain.cpp
    encee.h
    eventstore.cpp
    eventstore.hpp
    excep.cpp
    excep.h
    exceptmacros.h
    exinfo.cpp
    exinfo.h
    exstate.cpp
    exstate.h
    exstatecommon.h
    fcall.cpp
    fcall.h
    field.cpp
    field.h
    fieldmarshaler.cpp
    fieldmarshaler.h
    fjit_eetwain.cpp
    fjit_eetwain.h
    fptrstubs.cpp
    fptrstubs.h
    frames.cpp
    frames.h
    fusionbind.cpp
    fusioninit.cpp
    fusionsink.cpp
    fusionwrap.cpp
    fusionwrap.h
    gc.h
    gccommon.cpp
    gcdecode.cpp
    gcdesc.h
    gcee.cpp
    gceesvr.cpp
    gceewks.cpp
    gchost.cpp
    gcimpl.h
    gcscan.cpp
    gcscan.h
    gcsmp.cpp
    gcsmppriv.h
    gcsvr.cpp
    gcwks.cpp
    genericdict.cpp
    genericdict.h
    generics.cpp
    generics.h
    genmeth.cpp
    gmheap.cpp
    gmheap.hpp
    gms.h
    h2inc.pl
    handletable.cpp
    handletable.h
    handletable.inl
    handletablecache.cpp
    handletablecore.cpp
    handletablepriv.h
    handletablescan.cpp
    hash.cpp
    hash.h
    hostexecutioncontext.cpp
    hostexecutioncontext.h
    hosting.cpp
    hosting.h
    ibclogger.h
    ildump.h
    ilmarshalers.cpp
    ilmarshalers.h
    ilstubcache.cpp
    ilstubcache.h
    ilstubresolver.cpp
    ilstubresolver.h
    instmethhash.cpp
    instmethhash.h
    interopconverter.cpp
    interopconverter.h
    interoputil.cpp
    interoputil.h
    ...lidoverlappedwrappers.h
    invokeutil.cpp
    invokeutil.h
    jithelpers.cpp
    jitinterface.cpp
    jitinterface.h
    jitinterfacegen.cpp
    list.cpp
    list.h
    listlock.cpp
    listlock.h
    listlock.inl
    makefile.inc
    managedmdimport.cpp
    managedmdimport.hpp
    marshaler.h
    marshalnative.cpp
    marshalnative.h
    mdaassistants.h
    mdaassistantsptr.h
    memberload.cpp
    memberload.h
    message.cpp
    message.h
    metasig.h
    method.cpp
    method.hpp
    method.inl
    methodimpl.cpp
    methodimpl.h
    methoditer.cpp
    methoditer.h
    methodtable.cpp
    methodtable.h
    methodtable.inl
    ml.cpp
    ml.h
    mlcache.cpp
    mlcache.h
    mlgen.cpp
    mlgen.h
    mlinfo.cpp
    mlinfo.h
    mlopdef.h
    mscorlib.h
    mtypes.h
    namespace.h
    nativeoverlapped.cpp
    nativeoverlapped.h
    newcompressedstack.cpp
    newcompressedstack.h
    nsenums.h
    object.cpp
    object.h
    object.inl
    objectclone.cpp
    objectclone.h
    objecthandle.cpp
    objecthandle.h
    objectlist.cpp
    objectlist.h
    olevariant.cpp
    olevariant.h
    pefile.cpp
    pefile.h
    pefile.inl
    peimage.cpp
    peimage.h
    peimage.inl
    peimagelayout.cpp
    peimagelayout.h
    peimagelayout.inl
    pendingload.cpp
    pendingload.h
    precode.cpp
    precode.h
    prestub.cpp
    proftoeeinterfaceimpl.cpp
    proftoeeinterfaceimpl.h
    reflectclasswriter.cpp
    reflectclasswriter.h
    reflectioninvocation.cpp
    reflectioninvocation.h
    remoting.cpp
    remoting.h
    rexcep.h
    runtimeexceptionkind.h
    runtimehandles.cpp
    runtimehandles.h
    rwlock.cpp
    rwlock.h
    safehandle.cpp
    security.h
    security.inl
    securityattributes.cpp
    securityattributes.h
    securityconfig.cpp
    securityconfig.h
    securitydeclarative.cpp
    securitydeclarative.h
    securitydescriptor.cpp
    securitydescriptor.h
    ...descriptorappdomain.cpp
    ...tydescriptorappdomain.h
    ...ydescriptorassembly.cpp
    ...itydescriptorassembly.h
    securityhostprotection.cpp
    securityhostprotection.h
    securityimperative.cpp
    securityimperative.h
    securitymeta.cpp
    securitymeta.h
    securitypolicy.cpp
    securitypolicy.h
    securitystackwalk.cpp
    securitystackwalk.h
    ...transparentassembly.cpp
    ...tytransparentassembly.h
    sigformat.cpp
    sigformat.h
    siginfo.cpp
    siginfo.hpp
    simplerwlock.cpp
    simplerwlock.hpp
    sourceline.cpp
    sourceline.h
    sources.dac
    sources.inc
    specialstatics.h
    spinlock.cpp
    spinlock.h
    stackbuildersink.cpp
    stackbuildersink.h
    stackcompressor.cpp
    stackcompressor.h
    stackingallocator.cpp
    stackingallocator.h
    stackprobe.h
    stackprobe.inl
    stackwalk.cpp
    stackwalk.h
    stackwalktypes.h
    stringliteralmap.cpp
    stringliteralmap.h
    strongname.cpp
    stubgen.h
    stublink.cpp
    stublink.h
    stublink.inl
    stubmgr.cpp
    stubmgr.h
    syncblk.cpp
    syncblk.h
    syncblk.inl
    syncclean.cpp
    syncclean.hpp
    synch.cpp
    synch.h
    ...zationcontextnative.cpp
    ...nizationcontextnative.h
    testhookmgr.cpp
    testhookmgr.h
    thekey.h
    threads.cpp
    threads.h
    threads.inl
    tokeniter.cpp
    tokeniter.hpp
    typectxt.cpp
    typectxt.h
    typedesc.cpp
    typedesc.h
    typedesc.inl
    typehandle.cpp
    typehandle.h
    typehandle.inl
    typehash.cpp
    typehash.h
    typekey.h
    typeparse.cpp
    typeparse.h
    typestring.cpp
    typestring.h
    umthunkhash.cpp
    umthunkhash.h
    util.cpp
    util.hpp
    validator.cpp
    vars.cpp
    vars.hpp
    verifier.cpp
    verifier.hpp
    veropcodes.hpp
    vertable.h
    virtualcallstub.cpp
    virtualcallstub.h
    vmholder.h
    win32threadpool.cpp
    win32threadpool.h
    wrappers.h
 

// ==++==
// 
//   
//    Copyright (c) 2006 Microsoft Corporation.  All rights reserved.
//   
//    The use and distribution terms for this software are contained in the file
//    named license.txt, which can be found in the root of this distribution.
//    By using this software in any fashion, you are agreeing to be bound by the
//    terms of this license.
//   
//    You must not remove this notice, or any other, from this software.
//   
// 
// ==--==
/*============================================================
**
** Class: COMMemoryFailPoint
**
** Purpose: Native methods for System.Runtime.MemoryFailPoint.
** These are to implement memory gates to limit allocations
** when progress will likely result in an OOM.
**
===========================================================*/
#include "common.h"

#include "frames.h"
#include "commemoryfailpoint.h"

// Need to know the maximum segment size for both the normal GC heap and the
// large object heap, as well as the top user-accessible address within the
// address space (ie, theoretically 2^31 - 1 on a 32 bit machine, but a tad 
// lower in practice).  This will help out with 32 bit machines running in 
// 3 GB mode.
FCIMPL2(void, COMMemoryFailPoint::GetMemorySettings, UINT32* pMaxGCSegmentSize, UINT64* pTopOfMemory)
{
    WRAPPER_CONTRACT;

    GCHeap * pGC = GCHeap::GetGCHeap();
    size_t segment_size = pGC->GetValidSegmentSize(FALSE);
    size_t large_segment_size = pGC->GetValidSegmentSize(TRUE);
    _ASSERTE(segment_size < 0xffffffff && large_segment_size < 0xffffffff);
    if (segment_size > large_segment_size)
        *pMaxGCSegmentSize = (UINT32) segment_size;
    else
        *pMaxGCSegmentSize = (UINT32) large_segment_size;

    // GetTopMemoryAddress returns a void*, which can't be cast
    // directly to a UINT64 without causing an error from GCC.
    void * topOfMem = GetTopMemoryAddress();
    *pTopOfMemory = (UINT64) (size_t) topOfMem;
}
FCIMPLEND