diff options
Diffstat (limited to 'ndb/src/common/portlib/win32/NdbMem.c')
| -rw-r--r-- | ndb/src/common/portlib/win32/NdbMem.c | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/ndb/src/common/portlib/win32/NdbMem.c b/ndb/src/common/portlib/win32/NdbMem.c new file mode 100644 index 00000000000..274dc31353f --- /dev/null +++ b/ndb/src/common/portlib/win32/NdbMem.c @@ -0,0 +1,237 @@ +/* Copyright (C) 2003 MySQL AB + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + + +#include <windows.h> +#include <assert.h> +#include <NdbStdio.h> + +#include "NdbMem.h" + + +struct AWEINFO +{ + SIZE_T dwSizeInBytesRequested; + ULONG_PTR nNumberOfPagesRequested; + ULONG_PTR nNumberOfPagesActual; + ULONG_PTR nNumberOfPagesFreed; + ULONG_PTR* pnPhysicalMemoryPageArray; + void* pRegionReserved; +}; + +const size_t cNdbMem_nMaxAWEinfo = 256; +size_t gNdbMem_nAWEinfo = 0; + +struct AWEINFO* gNdbMem_pAWEinfo = 0; + + +void ShowLastError(const char* szContext, const char* szFunction) +{ + DWORD dwError = GetLastError(); + LPVOID lpMsgBuf; + FormatMessage( + FORMAT_MESSAGE_ALLOCATE_BUFFER | + FORMAT_MESSAGE_FROM_SYSTEM | + FORMAT_MESSAGE_IGNORE_INSERTS, + NULL, + dwError, + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language + (LPTSTR)&lpMsgBuf, + 0, + NULL + ); + printf("%s : %s failed : %lu : %s\n", szContext, szFunction, dwError, (char*)lpMsgBuf); + LocalFree(lpMsgBuf); +} + + + +void NdbMem_Create() +{ + // Address Windowing Extensions + struct PRIVINFO + { + DWORD Count; + LUID_AND_ATTRIBUTES Privilege[1]; + } Info; + + HANDLE hProcess = GetCurrentProcess(); + HANDLE hToken; + if(!OpenProcessToken(hProcess, TOKEN_ADJUST_PRIVILEGES, &hToken)) + { + ShowLastError("NdbMem_Create", "OpenProcessToken"); + } + + Info.Count = 1; + Info.Privilege[0].Attributes = SE_PRIVILEGE_ENABLED; + if(!LookupPrivilegeValue(0, SE_LOCK_MEMORY_NAME, &(Info.Privilege[0].Luid))) + { + ShowLastError("NdbMem_Create", "LookupPrivilegeValue"); + } + + if(!AdjustTokenPrivileges(hToken, FALSE, (PTOKEN_PRIVILEGES)&Info, 0, 0, 0)) + { + ShowLastError("NdbMem_Create", "AdjustTokenPrivileges"); + } + + if(!CloseHandle(hToken)) + { + ShowLastError("NdbMem_Create", "CloseHandle"); + } + + return; +} + +void NdbMem_Destroy() +{ + /* Do nothing */ + return; +} + +void* NdbMem_Allocate(size_t size) +{ + // Address Windowing Extensions + struct AWEINFO* pAWEinfo; + HANDLE hProcess; + SYSTEM_INFO sysinfo; + + if(!gNdbMem_pAWEinfo) + { + gNdbMem_pAWEinfo = VirtualAlloc(0, + sizeof(struct AWEINFO)*cNdbMem_nMaxAWEinfo, + MEM_COMMIT|MEM_RESERVE, PAGE_READWRITE); + } + + assert(gNdbMem_nAWEinfo < cNdbMem_nMaxAWEinfo); + pAWEinfo = gNdbMem_pAWEinfo+gNdbMem_nAWEinfo++; + + hProcess = GetCurrentProcess(); + GetSystemInfo(&sysinfo); + pAWEinfo->nNumberOfPagesRequested = (size+sysinfo.dwPageSize-1)/sysinfo.dwPageSize; + pAWEinfo->pnPhysicalMemoryPageArray = VirtualAlloc(0, + sizeof(ULONG_PTR)*pAWEinfo->nNumberOfPagesRequested, + MEM_COMMIT|MEM_RESERVE, PAGE_READWRITE); + pAWEinfo->nNumberOfPagesActual = pAWEinfo->nNumberOfPagesRequested; + if(!AllocateUserPhysicalPages(hProcess, &(pAWEinfo->nNumberOfPagesActual), pAWEinfo->pnPhysicalMemoryPageArray)) + { + ShowLastError("NdbMem_Allocate", "AllocateUserPhysicalPages"); + return 0; + } + if(pAWEinfo->nNumberOfPagesRequested != pAWEinfo->nNumberOfPagesActual) + { + ShowLastError("NdbMem_Allocate", "nNumberOfPagesRequested != nNumberOfPagesActual"); + return 0; + } + + pAWEinfo->dwSizeInBytesRequested = size; + pAWEinfo->pRegionReserved = VirtualAlloc(0, pAWEinfo->dwSizeInBytesRequested, MEM_RESERVE | MEM_PHYSICAL, PAGE_READWRITE); + if(!pAWEinfo->pRegionReserved) + { + ShowLastError("NdbMem_Allocate", "VirtualAlloc"); + return 0; + } + + if(!MapUserPhysicalPages(pAWEinfo->pRegionReserved, pAWEinfo->nNumberOfPagesActual, pAWEinfo->pnPhysicalMemoryPageArray)) + { + ShowLastError("NdbMem_Allocate", "MapUserPhysicalPages"); + return 0; + } + + /* + printf("allocate AWE memory: %lu bytes, %lu pages, address %lx\n", + pAWEinfo->dwSizeInBytesRequested, + pAWEinfo->nNumberOfPagesActual, + pAWEinfo->pRegionReserved); + */ + return pAWEinfo->pRegionReserved; +} + + +void* NdbMem_AllocateAlign(size_t size, size_t alignment) +{ + /* + return (void*)memalign(alignment, size); + TEMP fix + */ + return NdbMem_Allocate(size); +} + + +void NdbMem_Free(void* ptr) +{ + // VirtualFree(ptr, 0, MEM_DECOMMIT|MEM_RELEASE); + + // Address Windowing Extensions + struct AWEINFO* pAWEinfo = 0; + size_t i; + HANDLE hProcess; + + for(i=0; i<gNdbMem_nAWEinfo; ++i) + { + if(ptr==gNdbMem_pAWEinfo[i].pRegionReserved) + { + pAWEinfo = gNdbMem_pAWEinfo+i; + } + } + if(!pAWEinfo) + { + ShowLastError("NdbMem_Free", "ptr is not AWE memory"); + } + + hProcess = GetCurrentProcess(); + if(!MapUserPhysicalPages(ptr, pAWEinfo->nNumberOfPagesActual, 0)) + { + ShowLastError("NdbMem_Free", "MapUserPhysicalPages"); + } + + if(!VirtualFree(ptr, 0, MEM_RELEASE)) + { + ShowLastError("NdbMem_Free", "VirtualFree"); + } + + pAWEinfo->nNumberOfPagesFreed = pAWEinfo->nNumberOfPagesActual; + if(!FreeUserPhysicalPages(hProcess, &(pAWEinfo->nNumberOfPagesFreed), pAWEinfo->pnPhysicalMemoryPageArray)) + { + ShowLastError("NdbMem_Free", "FreeUserPhysicalPages"); + } + + VirtualFree(pAWEinfo->pnPhysicalMemoryPageArray, 0, MEM_DECOMMIT|MEM_RELEASE); +} + + +int NdbMem_MemLockAll() +{ + /* + HANDLE hProcess = GetCurrentProcess(); + SIZE_T nMinimumWorkingSetSize; + SIZE_T nMaximumWorkingSetSize; + GetProcessWorkingSetSize(hProcess, &nMinimumWorkingSetSize, &nMaximumWorkingSetSize); + ndbout << "nMinimumWorkingSetSize=" << nMinimumWorkingSetSize << ", nMaximumWorkingSetSize=" << nMaximumWorkingSetSize << endl; + + SetProcessWorkingSetSize(hProcess, 50000000, 100000000); + + GetProcessWorkingSetSize(hProcess, &nMinimumWorkingSetSize, &nMaximumWorkingSetSize); + ndbout << "nMinimumWorkingSetSize=" << nMinimumWorkingSetSize << ", nMaximumWorkingSetSize=" << nMaximumWorkingSetSize << endl; + */ + return -1; +} + +int NdbMem_MemUnlockAll() +{ + //VirtualUnlock(); + return -1; +} + |