+++ /dev/null
-/*
- * PROJECT: ReactOS Win32 Base API
- * LICENSE: GPL - See COPYING in the top level directory
- * FILE: dll/win32/kernel32/client/virtmem.c
- * PURPOSE: Handles virtual memory APIs
- * PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
- */
-
-/* INCLUDES *******************************************************************/
-
-#include <k32.h>
-
-#define NDEBUG
-#include <debug.h>
-
-/* FUNCTIONS ******************************************************************/
-
-/*
- * @implemented
- */
-LPVOID
-NTAPI
-VirtualAllocEx(IN HANDLE hProcess,
- IN LPVOID lpAddress,
- IN SIZE_T dwSize,
- IN DWORD flAllocationType,
- IN DWORD flProtect)
-{
- NTSTATUS Status;
-
- /* Make sure the address is within the granularity of the system (64K) */
- if ((lpAddress) &&
- (lpAddress < (PVOID)BaseStaticServerData->SysInfo.AllocationGranularity))
- {
- /* Fail the call */
- SetLastError(ERROR_INVALID_PARAMETER);
- return NULL;
- }
-
- /* Handle any possible exceptions */
- _SEH2_TRY
- {
- /* Allocate the memory */
- Status = NtAllocateVirtualMemory(hProcess,
- &lpAddress,
- 0,
- &dwSize,
- flAllocationType,
- flProtect);
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- Status = _SEH2_GetExceptionCode();
- }
- _SEH2_END;
-
- /* Check for status */
- if (!NT_SUCCESS(Status))
- {
- /* We failed */
- BaseSetLastNTError(Status);
- return NULL;
- }
-
- /* Return the allocated address */
- return lpAddress;
-}
-
-/*
- * @implemented
- */
-LPVOID
-NTAPI
-VirtualAlloc(IN LPVOID lpAddress,
- IN SIZE_T dwSize,
- IN DWORD flAllocationType,
- IN DWORD flProtect)
-{
- /* Call the extended API */
- return VirtualAllocEx(GetCurrentProcess(),
- lpAddress,
- dwSize,
- flAllocationType,
- flProtect);
-}
-
-/*
- * @implemented
- */
-BOOL
-NTAPI
-VirtualFreeEx(IN HANDLE hProcess,
- IN LPVOID lpAddress,
- IN SIZE_T dwSize,
- IN DWORD dwFreeType)
-{
- NTSTATUS Status;
-
- /* Validate size and flags */
- if (!(dwSize) || !(dwFreeType & MEM_RELEASE))
- {
- /* Free the memory */
- Status = NtFreeVirtualMemory(hProcess,
- &lpAddress,
- &dwSize,
- dwFreeType);
- if (!NT_SUCCESS(Status))
- {
- /* We failed */
- BaseSetLastNTError(Status);
- return FALSE;
- }
-
- /* Return success */
- return TRUE;
- }
-
- /* Invalid combo */
- BaseSetLastNTError(STATUS_INVALID_PARAMETER);
- return FALSE;
-}
-
-/*
- * @implemented
- */
-BOOL
-NTAPI
-VirtualFree(IN LPVOID lpAddress,
- IN SIZE_T dwSize,
- IN DWORD dwFreeType)
-{
- /* Call the extended API */
- return VirtualFreeEx(GetCurrentProcess(),
- lpAddress,
- dwSize,
- dwFreeType);
-}
-
-/*
- * @implemented
- */
-BOOL
-NTAPI
-VirtualProtect(IN LPVOID lpAddress,
- IN SIZE_T dwSize,
- IN DWORD flNewProtect,
- OUT PDWORD lpflOldProtect)
-{
- /* Call the extended API */
- return VirtualProtectEx(GetCurrentProcess(),
- lpAddress,
- dwSize,
- flNewProtect,
- lpflOldProtect);
-}
-
-/*
- * @implemented
- */
-BOOL
-NTAPI
-VirtualProtectEx(IN HANDLE hProcess,
- IN LPVOID lpAddress,
- IN SIZE_T dwSize,
- IN DWORD flNewProtect,
- OUT PDWORD lpflOldProtect)
-{
- NTSTATUS Status;
-
- /* Change the protection */
- Status = NtProtectVirtualMemory(hProcess,
- &lpAddress,
- &dwSize,
- flNewProtect,
- (PULONG)lpflOldProtect);
- if (!NT_SUCCESS(Status))
- {
- /* We failed */
- BaseSetLastNTError(Status);
- return FALSE;
- }
-
- /* Return success */
- return TRUE;
-}
-
-/*
- * @implemented
- */
-BOOL
-NTAPI
-VirtualLock(IN LPVOID lpAddress,
- IN SIZE_T dwSize)
-{
- NTSTATUS Status;
- SIZE_T RegionSize = dwSize;
- PVOID BaseAddress = lpAddress;
-
- /* Lock the memory */
- Status = NtLockVirtualMemory(NtCurrentProcess(),
- &BaseAddress,
- &RegionSize,
- MAP_PROCESS);
- if (!NT_SUCCESS(Status))
- {
- /* We failed */
- BaseSetLastNTError(Status);
- return FALSE;
- }
-
- /* Return success */
- return TRUE;
-}
-
-/*
- * @implemented
- */
-SIZE_T
-NTAPI
-VirtualQuery(IN LPCVOID lpAddress,
- OUT PMEMORY_BASIC_INFORMATION lpBuffer,
- IN SIZE_T dwLength)
-{
- /* Call the extended API */
- return VirtualQueryEx(NtCurrentProcess(),
- lpAddress,
- lpBuffer,
- dwLength);
-}
-
-/*
- * @implemented
- */
-SIZE_T
-NTAPI
-VirtualQueryEx(IN HANDLE hProcess,
- IN LPCVOID lpAddress,
- OUT PMEMORY_BASIC_INFORMATION lpBuffer,
- IN SIZE_T dwLength)
-{
- NTSTATUS Status;
- SIZE_T ResultLength;
-
- /* Query basic information */
- Status = NtQueryVirtualMemory(hProcess,
- (LPVOID)lpAddress,
- MemoryBasicInformation,
- lpBuffer,
- dwLength,
- &ResultLength);
- if (!NT_SUCCESS(Status))
- {
- /* We failed */
- BaseSetLastNTError(Status);
- return 0;
- }
-
- /* Return the length returned */
- return ResultLength;
-}
-
-/*
- * @implemented
- */
-BOOL
-NTAPI
-VirtualUnlock(IN LPVOID lpAddress,
- IN SIZE_T dwSize)
-{
- NTSTATUS Status;
- SIZE_T RegionSize = dwSize;
- PVOID BaseAddress = lpAddress;
-
- /* Lock the memory */
- Status = NtUnlockVirtualMemory(NtCurrentProcess(),
- &BaseAddress,
- &RegionSize,
- MAP_PROCESS);
- if (!NT_SUCCESS(Status))
- {
- /* We failed */
- BaseSetLastNTError(Status);
- return FALSE;
- }
-
- /* Return success */
- return TRUE;
-}
-
-/*
- * @implemented
- */
-UINT
-WINAPI
-GetWriteWatch(IN DWORD dwFlags,
- IN PVOID lpBaseAddress,
- IN SIZE_T dwRegionSize,
- IN PVOID *lpAddresses,
- OUT PULONG_PTR lpdwCount,
- OUT PULONG lpdwGranularity)
-{
- NTSTATUS Status;
-
- Status = NtGetWriteWatch(GetCurrentProcess(),
- dwFlags,
- lpBaseAddress,
- dwRegionSize,
- lpAddresses,
- lpdwCount,
- lpdwGranularity);
- if (!NT_SUCCESS(Status))
- {
- BaseSetLastNTError(Status);
- return -1;
- }
-
- return 0;
-}
-
-/*
- * @implemented
- */
-UINT
-WINAPI
-ResetWriteWatch(IN LPVOID lpBaseAddress,
- IN SIZE_T dwRegionSize)
-{
- NTSTATUS Status;
-
- Status = NtResetWriteWatch(NtCurrentProcess(),
- lpBaseAddress,
- dwRegionSize);
- if (!NT_SUCCESS(Status))
- {
- BaseSetLastNTError(Status);
- return -1;
- }
-
- return 0;
-}
-
-/*
- * @implemented
- */
-BOOL
-WINAPI
-AllocateUserPhysicalPages(IN HANDLE hProcess,
- IN PULONG_PTR NumberOfPages,
- OUT PULONG_PTR UserPfnArray)
-{
- NTSTATUS Status;
-
- Status = NtAllocateUserPhysicalPages(hProcess, NumberOfPages, UserPfnArray);
- if (!NT_SUCCESS(Status))
- {
- BaseSetLastNTError(Status);
- return FALSE;
- }
-
- return TRUE;
-}
-
-/*
- * @implemented
- */
-BOOL
-WINAPI
-FreeUserPhysicalPages(IN HANDLE hProcess,
- IN PULONG_PTR NumberOfPages,
- IN PULONG_PTR PageArray)
-{
- NTSTATUS Status;
-
- Status = NtFreeUserPhysicalPages(hProcess, NumberOfPages, PageArray);
- if (!NT_SUCCESS(Status))
- {
- BaseSetLastNTError(Status);
- return FALSE;
- }
-
- return TRUE;
-}
-
-/*
- * @implemented
- */
-BOOL
-WINAPI
-MapUserPhysicalPages(IN PVOID VirtualAddress,
- IN ULONG_PTR NumberOfPages,
- OUT PULONG_PTR PageArray OPTIONAL)
-{
- NTSTATUS Status;
-
- Status = NtMapUserPhysicalPages(VirtualAddress, NumberOfPages, PageArray);
- if (!NT_SUCCESS(Status))
- {
- BaseSetLastNTError(Status);
- return FALSE;
- }
-
- return TRUE;
-}
-
-/*
- * @implemented
- */
-BOOL
-WINAPI
-MapUserPhysicalPagesScatter(IN PVOID *VirtualAddresses,
- IN ULONG_PTR NumberOfPages,
- OUT PULONG_PTR PageArray OPTIONAL)
-{
- NTSTATUS Status;
-
- Status = NtMapUserPhysicalPagesScatter(VirtualAddresses,
- NumberOfPages,
- PageArray);
- if (!NT_SUCCESS(Status))
- {
- BaseSetLastNTError(Status);
- return FALSE;
- }
-
- return TRUE;
-}
-
-/* EOF */
projects / reactos.git / blobdiff