/*
* @implemented
*/
HANDLE
WINAPI
CreateSemaphoreExW(IN LPSECURITY_ATTRIBUTES lpSemaphoreAttributes OPTIONAL,
IN LONG lInitialCount,
IN LONG lMaximumCount,
IN LPCWSTR lpName OPTIONAL,
IN DWORD dwFlags,
IN DWORD dwDesiredAccess)
{
NTSTATUS Status;
OBJECT_ATTRIBUTES LocalAttributes;
POBJECT_ATTRIBUTES ObjectAttributes;
HANDLE Handle;
UNICODE_STRING ObjectName;
/* Now check if we got a name */
if (lpName) RtlInitUnicodeString(&ObjectName, lpName);
if (dwFlags != 0)
{
SetLastError(ERROR_INVALID_PARAMETER);
return NULL;
}
/* Now convert the object attributes */
ObjectAttributes = BasepConvertObjectAttributes(&LocalAttributes,
lpSemaphoreAttributes,
lpName ? &ObjectName : NULL);
/* Create the semaphore */
Status = NtCreateSemaphore(&Handle,
(ACCESS_MASK)dwDesiredAccess,
ObjectAttributes,
lInitialCount,
lMaximumCount);
if (NT_SUCCESS(Status))
{
/* Check if the object already existed */
if (Status == STATUS_OBJECT_NAME_EXISTS)
{
/* Set distinguished Win32 error code */
SetLastError(ERROR_ALREADY_EXISTS);
}
else
{
/* Otherwise, set success */
SetLastError(ERROR_SUCCESS);
}
/* Return the handle */
return Handle;
}
else
{
/* Convert the NT Status and fail */
SetLastErrorByStatus(Status);
return NULL;
}
}
/*
* @implemented
*/
HANDLE
NTAPI
CreateFileMappingW(HANDLE hFile,
LPSECURITY_ATTRIBUTES lpFileMappingAttributes,
DWORD flProtect,
DWORD dwMaximumSizeHigh,
DWORD dwMaximumSizeLow,
LPCWSTR lpName)
{
NTSTATUS Status;
HANDLE SectionHandle;
OBJECT_ATTRIBUTES LocalAttributes;
POBJECT_ATTRIBUTES ObjectAttributes;
UNICODE_STRING SectionName;
ACCESS_MASK DesiredAccess;
LARGE_INTEGER LocalSize;
PLARGE_INTEGER SectionSize = NULL;
ULONG Attributes;
/* Set default access */
DesiredAccess = STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ;
/* Get the attributes for the actual allocation and cleanup flProtect */
Attributes = flProtect & (SEC_FILE | SEC_IMAGE | SEC_RESERVE | SEC_NOCACHE | SEC_COMMIT | SEC_LARGE_PAGES);
flProtect ^= Attributes;
/* If the caller didn't say anything, assume SEC_COMMIT */
if (!Attributes) Attributes = SEC_COMMIT;
/* Now check if the caller wanted write access */
if (flProtect == PAGE_READWRITE)
{
/* Give it */
DesiredAccess |= (SECTION_MAP_WRITE | SECTION_MAP_READ);
}
/* Now check if we got a name */
if (lpName) RtlInitUnicodeString(&SectionName, lpName);
/* Now convert the object attributes */
ObjectAttributes = BasepConvertObjectAttributes(&LocalAttributes,
lpFileMappingAttributes,
lpName ? &SectionName : NULL);
/* Check if we got a size */
if (dwMaximumSizeLow || dwMaximumSizeHigh)
{
/* Use a LARGE_INTEGER and convert */
SectionSize = &LocalSize;
SectionSize->LowPart = dwMaximumSizeLow;
SectionSize->HighPart = dwMaximumSizeHigh;
}
/* Make sure the handle is valid */
if (hFile == INVALID_HANDLE_VALUE)
{
/* It's not, we'll only go on if we have a size */
hFile = NULL;
if (!SectionSize)
{
/* No size, so this isn't a valid non-mapped section */
SetLastError(ERROR_INVALID_PARAMETER);
return NULL;
}
}
/* Now create the actual section */
Status = NtCreateSection(&SectionHandle,
DesiredAccess,
ObjectAttributes,
SectionSize,
flProtect,
Attributes,
hFile);
if (Status == STATUS_OBJECT_NAME_EXISTS)
{
SetLastError(ERROR_ALREADY_EXISTS);
return SectionHandle;
}
if (!NT_SUCCESS(Status))
{
/* We failed */
BaseSetLastNTError(Status);
return NULL;
}
SetLastError(ERROR_SUCCESS);
/* Return the section */
return SectionHandle;
}
