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https://github.com/polarco/X360PS5.git
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41 lines
2.7 KiB
C++
41 lines
2.7 KiB
C++
// SPDX-License-Identifier: GPL-3.0-or-later
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#include "xenia/base/memory.h"
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#include <cstdio>
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#include <cstring>
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#include <limits>
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int main() {
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using namespace xe::memory;
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auto check=[](bool ok,const char* what){if(!ok)std::fprintf(stderr,"FAILED: %s\n",what);return ok;};
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bool ok=true;
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ok &= check(!AllocFixed(nullptr,0,AllocationType::kReserve,PageAccess::kNoAccess),"zero size rejected");
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ok &= check(!AllocFixed(reinterpret_cast<void*>(0x1234),65536,AllocationType::kReserve,PageAccess::kNoAccess),"unaligned address rejected");
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auto* area=AllocFixed(nullptr,131072,AllocationType::kReserve,PageAccess::kNoAccess);
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if(!check(area!=nullptr,"reserve"))return 1;
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auto h=CreateFileMappingHandle({},65536,PageAccess::kReadWrite,false);
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auto* a=static_cast<unsigned char*>(MapFileView(h,area,65536,PageAccess::kReadWrite,0));
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auto* b=static_cast<unsigned char*>(MapFileView(h,static_cast<char*>(area)+65536,65536,PageAccess::kReadWrite,0));
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if(!check(a&&b,"two aliases"))return 1;
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a[37]=91;ok &= check(b[37]==91,"physical alias identity");
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ok &= check(!MapFileView(h,a,65536,PageAccess::kReadWrite,0),"live view never overwritten");
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PageAccess previous{},access{};size_t length=0;
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ok &= check(Protect(a+16384,16384,PageAccess::kReadOnly,&previous)&&previous==PageAccess::kReadWrite,"partial protection");
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ok &= check(QueryProtect(a,length,access)&&length==16384&&access==PageAccess::kReadWrite,"query stops at protection boundary");
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ok &= check(QueryProtect(a+16384,length,access)&&length==16384&&access==PageAccess::kReadOnly,"query read-only page");
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ok &= check(!Protect(a+131072,16384,PageAccess::kReadWrite),"unknown memory rejected");
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ok &= check(DeallocFixed(area,0,DeallocationType::kRelease),"release first view");
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ok &= check(b[37]==91,"second alias survives release of first view");
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ok &= check(!DeallocFixed(area,0,DeallocationType::kRelease),"reservation cannot release while second alias is live");
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if(QueryProtect(a,length,access)) ok &= check(UnmapFileView(h,a,65536),"unmap first");
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ok &= check(UnmapFileView(h,b,65536),"unmap second");
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CloseFileMappingHandle(h,{});
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ok &= check(DeallocFixed(area,0,DeallocationType::kRelease),"release empty reservation");
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auto* p=AllocFixed(nullptr,65536,AllocationType::kReserveCommit,PageAccess::kReadWrite);
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if(!check(p!=nullptr,"reserve commit"))return 1;
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memset(p,0xab,65536);
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ok &= check(DeallocFixed(p,65536,DeallocationType::kDecommit),"decommit");
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ok &= check(AllocFixed(p,65536,AllocationType::kCommit,PageAccess::kReadWrite)==p,"recommit");
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for(size_t i=0;i<65536;++i) if(static_cast<unsigned char*>(p)[i]) {ok=false;break;}
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ok &= check(DeallocFixed(p,0,DeallocationType::kRelease),"release");
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return ok?0:1;
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}
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