{ This file is part of the Free Pascal run time library. Copyright (c) 2014 by the Free Pascal development team. Additional OS/2 API functions implemented in DOSCALL1.DLL: - File handling (64-bit functions available in WSeB/MCP/eCS and protected access to file handles as available in OS/2 2.1+) - Certain SMP related functions for querying and setting status of processors and thread and system affinity (available in SMP-ready versions of OS/2 kernels) - Support for working with extended LIBPATH (available in OS/2 Warp 4.0 and higher). Availability of individual functions is checked dynamically during initialization and fake (simulated) functions are used if running under an OS/2 version not providing the respective functionality. See the file COPYING.FPC, included in this distribution, for details about the copyright. 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. **********************************************************************} unit DosCall2; {***************************************************************************} interface {***************************************************************************} uses DosCalls, Strings; const (* Status in DosGet/SetProcessorStatus *) PROC_OFFLINE = 0; (* Processor is offline *) PROC_ONLINE = 1; (* Processor is online *) (* Scope in DosQueryThreadAffinity *) AFNTY_THREAD = 0; (* Return the current threads processor affinity mask. *) AFNTY_SYSTEM = 1; (* Return the system's current capable processor affinity mask. *) (* Flags in DosQuery/SetExtLibPath *) BEGIN_LIBPATH = 1; (* The new path is searched before the LIBPATH. *) END_LIBPATH = 2; (* The new path is searched after the LIBPATH. *) (* Constants for DosSuppressPopups *) SPU_DisableSuppression = 0; SPU_EnableSuppression = 1; (* Constants for DosDumpProcess *) DDP_DisableProcDump = 0; DDP_EnableProcDump = 1; DDP_PerformProcDump = 2; (* Constants for DosPerfSysCall *) Cmd_KI_Enable = $60; Cmd_KI_RdCnt = $63; Cmd_SoftTrace_Log = $14; (* Constants for DosQueryABIOSSupport *) HW_Cfg_MCA = 1; HW_Cfg_EISA = 2; HW_Cfg_ABIOS_Supported = 4; HW_Cfg_ABIOS_Present = 8; HW_Cfg_PCI = 16; HW_Cfg_OEM_ABIOS = 32; HW_Cfg_IBM_ABIOS = 0; HW_Cfg_Pentium_CPU = 64; (* Constants for DosQueryThreadContext - Level *) Context_Control = 1; { Control registers: SS:ESP, CS:EIP, EFLAGS and EBP } Context_Integer = 2; { EAX, EBX, ECX, EDX, ESI and EDI } Context_Segments = 4; { Segment registers: DS, ES, FS, and GS } Context_Floating_Point = 8; { Numeric coprocessor state } Context_Full = 15; { All of the above } type TFileLockL = record case boolean of false: (Offset: int64; (* Offset to beginning of the lock (or unlock) range. *) Range: int64); (* Length of the lock (or unlock) range in bytes. *) (* Length of 0 => locking (or unlocking) not required. *) true: (lOffset: int64; lRange: int64); end; PFileLockL = ^TFileLockL; TMPAffinity = record Mask: array [0..1] of cardinal; end; PMPAffinity = ^TMPAffinity; TCPUUtil = record TotalLow, TotalHigh, IdleLow, IdleHigh, BusyLow, BusyHigh, IntrLow, IntrHigh: cardinal; end; PCPUUtil = ^TCPUUtil; function DosOpenL (FileName: PChar; var Handle: THandle; var Action: cardinal; InitSize: int64; Attrib, OpenFlags, FileMode: cardinal; EA: pointer): cardinal; cdecl; function DosSetFilePtrL (Handle: THandle; Pos: int64; Method: cardinal; var PosActual: int64): cardinal; cdecl; function DosSetFileSizeL (Handle: THandle; Size: int64): cardinal; cdecl; function DosProtectOpen (FileName: PChar; var Handle: longint; var Action: longint; InitSize, Attrib, OpenFlags, OpenMode: longint; ea: PEAOp2; var FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectOpen (const FileName: string; var Handle: longint; var Action: longint; InitSize, Attrib, OpenFlags, OpenMode: longint; ea: PEAOp2; var FileHandleLockID: cardinal): cardinal; function DosProtectOpen (const FileName: string; var Handle: THandle; var Action: cardinal; InitSize, Attrib, OpenFlags, OpenMode: cardinal; ea: PEAOp2; var FileHandleLockID: cardinal): cardinal; function DosProtectRead (Handle: longint; var Buffer; Count: longint; var ActCount: longint; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectWrite (Handle: longint; const Buffer; Count: longint; var ActCount: longint; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectSetFilePtr (Handle: longint; Pos, Method: longint; var PosActual: longint; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectSetFilePtr (Handle: THandle; Pos: longint; FileHandleLockID: cardinal): cardinal; function DosProtectGetFilePtr (Handle: longint; var PosActual: longint; FileHandleLockID: cardinal): cardinal; function DosProtectGetFilePtr (Handle: THandle; var PosActual: cardinal; FileHandleLockID: cardinal): cardinal; function DosProtectEnumAttribute (Handle: THandle; Entry: cardinal; var Buf; BufSize: cardinal; var Count: cardinal; InfoLevel: cardinal; FileHandleLockID: cardinal): cardinal; function DosProtectEnumAttribute (const FileName: string; Entry: cardinal; var Buf; BufSize: cardinal; var Count: cardinal; InfoLevel: cardinal; FileHandleLockID: cardinal): cardinal; function DosProtectOpen (FileName: PChar; var Handle: THandle; var Action: cardinal; InitSize, Attrib, OpenFlags, OpenMode: cardinal; ea: PEAOp2; var FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectClose (Handle: THandle; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectRead (Handle: THandle; var Buffer; Count: cardinal; var ActCount: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectWrite (Handle: THandle; const Buffer; Count: cardinal; var ActCount: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectSetFilePtr (Handle: THandle; Pos: longint; Method: cardinal; var PosActual: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectSetFileSize (Handle: THandle; Size: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectQueryFHState (Handle: THandle; var FileMode: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectSetFHState (Handle: THandle; FileMode: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectQueryFileInfo (Handle: THandle; InfoLevel: cardinal; AFileStatus: PFileStatus; FileStatusLen: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectSetFileInfo (Handle: THandle; InfoLevel: cardinal; AFileStatus: PFileStatus; FileStatusLen: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectEnumAttribute (RefType: cardinal; AFile: pointer; Entry: cardinal; var Buf; BufSize: cardinal; var Count: cardinal; InfoLevel: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; function DosProtectSetFileLocks (Handle: THandle; var Unlock, Lock: TFileLock; Timeout, Flags: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; (* DosCancelLockRequestL cancels an outstanding DosSetFileLocksL request. If two threads in a process are waiting on a lock file range, and another thread issues DosCancelLockRequestL for that lock file range, then both waiting threads are released. Not all file-system drivers (FSDs) can cancel an outstanding lock request. Local Area Network (LAN) servers cannot cancel an outstanding lock request if they use a version of the operating system prior to OS/2 Version 2.00. Possible results: 0 No_Error 6 Error_Invalid_Handle 87 Error_Invalid_Parameter 173 Error_Cancel_Violation Handle = File handle used in the DosSetFileLocksL function that is to be cancelled. Lock = Specification of the lock request to be cancelled. *) function DosCancelLockRequestL (Handle: THandle; var Lock: TFileLockL): cardinal; cdecl; (* DosProtectSetFileLocksL locks and unlocks a range of an open file. Parameters: Handle = file handle Unlock = record containing the offset and length of a range to be unlocked Lock = record containing the offset and length of a range to be locked Timeout = the maximum time that the process is to wait for the requested locks (in milliseconds) Flags = bit mask specifying action to be taken. Bits 31..2 are reserved. Bit 1 (Atomic) means request for atomic locking - if the bit is set and the lock range is equal to the unlock range, an atomic lock occurs. If this bit is set to 1 and the lock range is not equal to the unlock range, an error is returned. If this bit is set to 0, then the lock may or may not occur atomically with the unlock. Bit 0 (Share) defines the type of access that other processes may have to the file range that is being locked. If this bit is set to 0 (default), other processes have no access to the locked file range. The current process has exclusive access to the locked file range, which must not overlap any other locked file range. If this bit is set to 1, the current process and other processes have shared read only access to the locked file range. A file range with shared access may overlap any other file range with shared access, but must not overlap any other file range with exclusive access. FileHandleLockID = filehandle lockid returned by a previous DosProtectOpenL. Possible return codes: 0 NO_ERROR 6 ERROR_INVALID_HANDLE 33 ERROR_LOCK_VIOLATION 36 ERROR_SHARING_BUFFER_EXCEEDED 87 ERROR_INVALID_PARAMETER 95 ERROR_INTERRUPT 174 ERROR_ATOMIC_LOCK_NOT_SUPPORTED 175 ERROR_READ_LOCKS_NOT_SUPPORTED Remarks: DosProtectSetFileLocksL allows a process to lock and unlock a range in a file. The time during which a file range is locked should be short. If the lock and unlock ranges are both zero, ERROR_LOCK_VIOLATION is returned to the caller. If you only want to lock a file range, set the unlock file offset and the unlock range length to zero. If you only want to unlock a file range, set the lock file offset and the lock range length to zero. When the Atomic bit of flags is set to 0, and DosProtectSetFileLocksL specifies a lock operation and an unlock operation, the unlock operation occurs first, and then the lock operation is performed. If an error occurs during the unlock operation, an error code is returned and the lock operation is not performed. If an error occurs during the lock operation, an error code is returned and the unlock remains in effect if it was successful. The lock operation is atomic when all of these conditions are met: - The Atomic bit is set to 1 in flags - The unlock range is the same as the lock range - The process has shared access to the file range, and has requested exclusive access to it; or the process has exclusive access to the file range, and has requested shared access to it. Some file system drivers (FSDs) may not support atomic lock operations. Versions of the operating system prior to OS/2 Version 2.00 do not support atomic lock operations. If the application receives the error code ERROR_ATOMIC_LOCK_NOT_SUPPORTED, the application should unlock the file range and then lock it using a non-atomic operation (with the atomic bit set to 0 in Flags). The application should also refresh its internal buffers before making any changes to the file. If you issue DosProtectClose to close a file with locks still in effect, the locks are released in no defined sequence. If you end a process with a file open, and you have locks in effect in that file, the file is closed and the locks are released in no defined sequence. The locked range can be anywhere in the logical file. Locking beyond the end of the file is not an error. A file range to be locked exclusively must first be cleared of any locked file sub-ranges or overlapping locked file ranges. If you repeat DosProtectSetFileLocksL for the same file handle and file range, then you duplicate access to the file range. Access to locked file ranges is not duplicated across DosExecPgm. The proper method of using locks is to attempt to lock the file range, and to examine the return value. The following table shows the level of access granted when the accessed file range is locked with an exclusive lock or a shared lock. Owner refers to a process that owns the lock. Non-owner refers to a process that does not own the lock. Action Exclusive Lock Shared Lock =================================================================== Owner read Success Success ------------------------------------------------------------------- Non-owner Wait for unlock. Return Success read error code after time-out. ------------------------------------------------------------------- Owner write Success Wait for unlock. Return error code after time-out. ------------------------------------------------------------------- Non-owner Wait for unlock. Return Wait for unlock. Return write error code after time-out. error code after time-out. ------------------------------------------------------------------- If only locking is specified, DosProtectSetFileLocksL locks the specified file range using Lock. If the lock operation cannot be accomplished, an error is returned, and the file range is not locked. After the lock request is processed, a file range can be unlocked using the Unlock parameter of another DosProtectSetFileLocksL request. If unlocking cannot be accomplished, an error is returned. Instead of denying read/write access to an entire file by specifying access and sharing modes with DosProtectOpenL requests, a process attempts to lock only the range needed for read/write access and examines the error code returned. Once a specified file range is locked exclusively, read and write access by another process is denied until the file range is unlocked. If both unlocking and locking are specified by DosProtectSetFileLocksL, the unlocking operation is performed first, then locking is done. *) function DosProtectSetFileLocksL (Handle: THandle; var Unlock: TFileLockL; var Lock: TFileLockL; Timeout: cardinal; Flags: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; (* DosSetFileLocksL locks and unlocks a range of an open file. Parameters: Handle = file handle Unlock = record containing the offset and length of a range to be unlocked Lock = record containing the offset and length of a range to be locked Timeout = the maximum time that the process is to wait for the requested locks (in milliseconds) Flags = bit mask specifying action to be taken. Bits 31..2 are reserved. Bit 1 (Atomic) means request for atomic locking - if the bit is set and the lock range is equal to the unlock range, an atomic lock occurs. If this bit is set to 1 and the lock range is not equal to the unlock range, an error is returned. If this bit is set to 0, then the lock may or may not occur atomically with the unlock. Bit 0 (Share) defines the type of access that other processes may have to the file range that is being locked. If this bit is set to 0 (default), other processes have no access to the locked file range. The current process has exclusive access to the locked file range, which must not overlap any other locked file range. If this bit is set to 1, the current process and other processes have shared read only access to the locked file range. A file range with shared access may overlap any other file range with shared access, but must not overlap any other file range with exclusive access. Possible return codes: 0 NO_ERROR 1 ERROR_INVALID_FUNCTION 6 ERROR_INVALID_HANDLE 33 ERROR_LOCK_VIOLATION 36 ERROR_SHARING_BUFFER_EXCEEDED 87 ERROR_INVALID_PARAMETER 95 ERROR_INTERRUPT 174 ERROR_ATOMIC_LOCK_NOT_SUPPORTED 175 ERROR_READ_LOCKS_NOT_SUPPORTED Remarks: DosSetFileLocksL allows a process to lock and unlock a range in a file. The time during which a file range is locked should be short. If the lock and unlock ranges are both zero, ERROR_LOCK_VIOLATION is returned to the caller. If you only want to lock a file range, set the unlock file offset and the unlock range length to zero. If you only want to unlock a file range, set the lock file offset and the lock range length to zero. When the Atomic bit of flags is set to 0, and DosSetFileLocksL specifies a lock operation and an unlock operation, the unlock operation occurs first, and then the lock operation is performed. If an error occurs during the unlock operation, an error code is returned and the lock operation is not performed. If an error occurs during the lock operation, an error code is returned and the unlock remains in effect if it was successful. The lock operation is atomic when all of these conditions are met: - The Atomic bit is set to 1 in flags - The unlock range is the same as the lock range - The process has shared access to the file range, and has requested exclusive access to it; or the process has exclusive access to the file range, and has requested shared access to it. Some file system drivers (FSDs) may not support atomic lock operations. Versions of the operating system prior to OS/2 Version 2.00 do not support atomic lock operations. If the application receives the error code ERROR_ATOMIC_LOCK_NOT_SUPPORTED, the application should unlock the file range and then lock it using a non-atomic operation (with the atomic bit set to 0 in flags). The application should also refresh its internal buffers before making any changes to the file. If you issue DosClose to close a file with locks still in effect, the locks are released in no defined sequence. If you end a process with a file open, and you have locks in effect in that file, the file is closed and the locks are released in no defined sequence. The locked range can be anywhere in the logical file. Locking beyond the end of the file is not an error. A file range to be locked exclusively must first be cleared of any locked file subranges or overlapping locked file ranges. If you repeat DosSetFileLocksL for the same file handle and file range, then you duplicate access to the file range. Access to locked file ranges is not duplicated across DosExecPgm. The proper method of using locks is to attempt to lock the file range, and to examine the return value. The following table shows the level of access granted when the accessed file range is locked with an exclusive lock or a shared lock. Owner refers to a process that owns the lock. Non-owner refers to a process that does not own the lock. Action Exclusive Lock Shared Lock =================================================================== Owner read Success Success ------------------------------------------------------------------- Non-owner Wait for unlock. Return Success read error code after time-out. ------------------------------------------------------------------- Owner write Success Wait for unlock. Return error code after time-out. ------------------------------------------------------------------- Non-owner Wait for unlock. Return Wait for unlock. Return write error code after time-out. error code after time-out. ------------------------------------------------------------------- If only locking is specified, DosSetFileLocksL locks the specified file range using Lock. If the lock operation cannot be accomplished, an error is returned, and the file range is not locked. After the lock request is processed, a file range can be unlocked using the Unlock parameter of another DosSetFileLocksL request. If unlocking cannot be accomplished, an error is returned. Instead of denying read/write access to an entire file by specifying access and sharing modes with DosOpenL requests, a process attempts to lock only the range needed for read/write access and examines the error code returned. Once a specified file range is locked exclusively, read and write access by another process is denied until the file range is unlocked. If both unlocking and locking are specified by DosSetFileLocksL, the unlocking operation is performed first, then locking is done. *) function DosSetFileLocksL (Handle: THandle; var Unlock: TFileLockL; var Lock: TFileLockL; Timeout: cardinal; Flags: cardinal): cardinal; cdecl; (* DosProtectOpenL opens a new file, an existing file, or a replacement for an existing file and returns a protected file handle. An open file can have extended attributes. Parameters: FileName = ASCIIZ path name of the file or device to be opened. Handle = handle for the file is returned here. Action = value that specifies the action taken by DosProtectOpenL is returned here; if DosProtectOpenL fails, this value has no meaning, otherwise, it is one of the following values: 1 FILE_EXISTED - file already existed. 2 FILE_CREATED - file was created. 3 FILE_TRUNCATED - file existed and was changed to a given size (file was replaced). InitSize = new logical size of the file (end of data, EOD), in bytes; this parameter is significant only when creating a new file or replacing an existing one. Otherwise, it is ignored. It is an error to create or replace a file with a nonzero length if the OpenMode Access-Mode flag is set to read-only. Attrib = file attributes; this parameter contains the following bit fields: Bits Description 31..6 - reserved, must be 0. 5 FILE_ARCHIVED (0x00000020) - file has been archived. 4 FILE_DIRECTORY (0x00000010) - file is a subdirectory. 3 - reserved, must be 0. 2 FILE_SYSTEM (0x00000004) - file is a system file. 1 FILE_HIDDEN (0x00000002) - file is hidden and does not appear in a directory listing. 0 FILE_READONLY (0x00000001) - file can be read from, but not written to. 0 FILE_NORMAL (0x00000000) - file can be read from or written to. File attributes apply only if the file is created. These bits may be set individually or in combination. For example, an attribute value of 0x00000021 (bits 5 and 0 set to 1) indicates a read-only file that has been archived. OpenFlags = the action to be taken depending on whether the file exists or does not exist. This parameter contains the following bit fields: Bits Description 31..8 - reserved, must be 0. 7..4 - the following flags apply if the file does not exist: 0000 OPEN_ACTION_FAIL_IF_NEW Open an existing file; fail if the file does not exist. 0001 OPEN_ACTION_CREATE_IF_NEW Create the file if the file does not exist. 3..0 The following flags apply if the file does not exist: 0000 OPEN_ACTION_FAIL_IF_EXISTS Open the file; fail if the file already exists. 0001 OPEN_ACTION_OPEN_IF_EXISTS Open the file if it already exists. 0010 OPEN_ACTION_REPLACE_IF_EXISTS Replace the file if it already exists. OpenMode = the mode of the open function. This parameter contains the following bit fields: Bits Description 31 - reserved, must be zero. 30 OPEN_FLAGS_PROTECTED_HANDLE (0x40000000) - protected file handle flag. 0 - unprotected Handle 1 - protected Handle Protected handle requires the FileHandleLockID to be specified on subsequent DosProtectxxxx calls. Unprotected handle requires the FileHandleLockID value to be specified as zero on subsequent DosProtectxxxx calls. An unprotected handle may be used with the unprotected calls such as DosRead and DosWrite. 29 OPEN_SHARE_DENYLEGACY (0x10000000) Deny read/write access by the DosOpen command: 0 - allow read/write access by the DosOpen command. 1 - deny read/write access by the DosOpen command. A file opened by DosOpenL will not be allowed to grow larger than 2GB while that same file is open via a legacy DosOpen call. Setting this bit to 1 will prevent access by the obsolete DosOpen API and ensure that no error will occur when growing the file. 28..16 - reserved, must be zero. 15 OPEN_FLAGS_DASD (0x00008000) Direct Open flag: 0 - FileName represents a file to be opened normally. 1 - FileName is drive (such as C or A), and represents a mounted disk or diskette volume to be opened for direct access. 14 OPEN_FLAGS_WRITE_THROUGH (0x00004000) Write-Through flag: 0 - writes to the file may go through the file-system driver's cache; the file-system driver writes the sectors when the cache is full or the file is closed. 1 - writes to the file may go through the file-system driver's cache, but the sectors are written (the actual file I/O operation is completed) before a synchronous write call returns. This state of the file defines it as a synchronous file. For synchronous files, this bit must be set, because the data must be written to the medium for synchronous write operations. This bit flag is not inherited by child processes. 13 OPEN_FLAGS_FAIL_ON_ERROR (0x00002000) Fail-Errors flag. Media I/O errors are handled as follows: 0 - reported through the system critical-error handler. 1 - reported directly to the caller by way of a return code. Media I/O errors generated through Category 08h Logical Disk Control IOCtl Commands always get reported directly to the caller by way of return code. The Fail-Errors function applies only to non-IOCtl handle-based file I/O calls. This flag bit is not inherited by child processes. 12 OPEN_FLAGS_NO_CACHE (0x00001000) No-Cache/Cache flag: 0 - the file-system driver should place data from I/O operations into its cache. 1 - I/O operations to the file need not be done through the file-system driver's cache. The setting of this bit determines whether file-system drivers should place data into the cache. Like the write-through bit, this is a per-handle bit, and is not inherited by child processes. 11 - reserved; must be 0. 10..8 - the locality of reference flags contain information about how the application is to get access to the file. The values are as follows: 000 OPEN_FLAGS_NO_LOCALITY (0x00000000) No locality known. 001 OPEN_FLAGS_SEQUENTIAL (0x00000100) Mainly sequential access. 010 OPEN_FLAGS_RANDOM (0x00000200) Mainly random access. 011 OPEN_FLAGS_RANDOMSEQUENTIAL (0x00000300) Random with some locality. 7 OPEN_FLAGS_NOINHERIT (0x00000080) Inheritance flag: 0 - file handle is inherited by a process created from a call to DosExecPgm. 1 - file handle is private to the current process. This bit is not inherited by child processes. 6..4 Sharing Mode flags; this field defines any restrictions to file access placed by the caller on other processes. The values are as follows: 001 OPEN_SHARE_DENYREADWRITE (0x00000010) Deny read write access. 010 OPEN_SHARE_DENYWRITE (0x00000020) Deny write access. 011 OPEN_SHARE_DENYREAD (0x00000030) Deny read access. 100 OPEN_SHARE_DENYNONE (0x00000040) Deny neither read nor write access (deny none). Any other value is invalid. 3 Reserved; must be 0. 2..0 Access-Mode flags. This field defines the file access required by the caller. The values are as follows: 000 OPEN_ACCESS_READONLY (0x00000000) Read-only access 001 OPEN_ACCESS_WRITEONLY (0x00000001) Write-only access 010 OPEN_ACCESS_READWRITE (0x00000002) Read/write access. Any other value is invalid, as are any other combinations. File sharing requires the cooperation of sharing processes. This cooperation is communicated through sharing and access modes. Any sharing restrictions placed on a file opened by a process are removed when the process closes the file with a DosClose request. Sharing Mode: Specifies the type of file access that other processes may have. For example, if other processes can continue to read the file while your process is operating on it, specify Deny Write. The sharing mode prevents other processes from writing to the file but still allows them to read it. Access Mode: Specifies the type of file access (access mode) needed by your process. For example, if your process requires read/write access, and another process has already opened the file with a sharing mode of Deny None, your DosProtectOpenL request succeeds. However, if the file is open with a sharing mode of Deny Write, the process is denied access. If the file is inherited by a child process, all sharing and access restrictions also are inherited. If an open file handle is duplicated by a call to DosDupHandle, all sharing and access restrictions also are duplicated. EA = pointer to an extended attribute buffer. The address of the extended-attribute buffer, which contains an EAOP2 structure. The fpFEA2List field in the EAOP2 structure points to a data area where the relevant FEA2 list is to be found. The fpGEA2List and oError fields are ignored. Output fpGEA2List and fpFEA2List are unchanged. The area that fpFEA2List points to is unchanged. If an error occurred during the set, oError is the offset of the FEA2 entry where the error occurred. The return code from DosProtectOpenL is the error code for that error condition. If no error occurred, oError is undefined. EA is nil, then no extended attributes are defined for the file. If extended attributes are not to be defined or modified, the pointer EA must be set to nil. FileHandleLockID = 32-bit LockID for the file handle is returned here. Possible return codes: 0 NO_ERROR 2 ERROR_FILE_NOT_FOUND 3 ERROR_PATH_NOT_FOUND 4 ERROR_TOO_MANY_OPEN_FILES 5 ERROR_ACCESS_DENIED 12 ERROR_INVALID_ACCESS 26 ERROR_NOT_DOS_DISK 32 ERROR_SHARING_VIOLATION 36 ERROR_SHARING_BUFFER_EXCEEDED 82 ERROR_CANNOT_MAKE 87 ERROR_INVALID_PARAMETER 99 ERROR_DEVICE_IN_USE 108 ERROR_DRIVE_LOCKED 110 ERROR_OPEN_FAILED 112 ERROR_DISK_FULL 206 ERROR_FILENAME_EXCED_RANGE 231 ERROR_PIPE_BUSY Remarks: A successful DosProtectOpenL request returns a handle and a 32-bit LockID for accessing the file. The read/write pointer is set at the first byte of the file. The position of the pointer can be changed with DosProtectSetFilePtrL or by read and write operations on the file. The file s date and time can be queried with DosProtectQueryFileInfo. They are set with DosProtectSetFileInfo. The read-only attribute of a file can be set with the ATTRIB command. ulAttribute cannot be set to Volume Label. To set volume-label information, issue DosProtectSetFileInfo with a logical drive number. Volume labels cannot be opened. InitSize affects the size of the file only when the file is new or is a replacement. If an existing file is opened, cbFile is ignored. To change the size of the existing file, issue DosProtectSetFileSizeL. The value in InitSize is a recommended size. If the full size cannot be allocated, the open request may still succeed. The file system makes a reasonable attempt to allocate the new size in an area that is as nearly contiguous as possible on the medium. When the file size is extended, the values of the new bytes are undefined. The Direct Open bit provides direct access to an entire disk or diskette volume, independent of the file system. This mode of opening the volume that is currently on the drive returns a handle to the calling function; the handle represents the logical volume as a single file. The calling function specifies this handle with a DosDevIOCtl Category 8, DSK_LOCKDRIVE request to prevent other processes from accessing the logical volume. When you are finished using the logical volume, issue a DosDevIOCtl Category 8, DSK_UNLOCKDRIVE request to allow other processes to access the logical volume. The file-handle state bits can be set by DosProtectOpenL and DosProtectSetFHState. An application can query the file-handle state bits, as well as the rest of the Open Mode field, by issuing DosProtectQueryFHState. You can use an TEAOP2 structure to set extended attributes in EA when creating a file, replacing an existing file, or truncating an existing file. No extended attributes are set when an existing file is just opened. A replacement operation is logically equivalent to atomically deleting and re-creating the file. This means that any extended attributes associated with the file also are deleted before the file is re-created. The FileHandleLockID returned is required on each of the DosProtectxxx functions. An incorrect pfhFileHandleLockID on subsequent DosProtectxxx calls results in an ERROR_ACCESS_DENIED return code. The DosProtectxxx functions can be used with a NULL filehandle LockID, if the subject filehandle was obtained from DosOpen. *) function DosProtectOpenL (FileName: PChar; var Handle: THandle; var Action: cardinal; InitSize: int64; Attrib, OpenFlags, OpenMode: cardinal; EA: PEAOp2; var FileHandleLockID: cardinal): cardinal; cdecl; (* DosProtectSetFilePtrL moves the read or write pointer according to the type of move specified. Parameters: Handle = the handle returned by a previous DosOpenL function. Pos = The signed distance (offset) to move, in bytes. Method = The method of moving - location in the file at which the read/write pointer starts before adding the Pos offset. The values and their meanings are as shown in the following list: 0 FILE_BEGIN - move the pointer from the beginning of the file. 1 FILE_CURRENT - move the pointer from the current location of the read/write pointer. 2 FILE_END - move the pointer from the end of the file; use this method to determine a file's size. PosActual = address of the new pointer location. FileHandleLockID = The filehandle lockid returned by a previous DosProtectOpenL. Possible return codes: 0 NO_ERROR 1 ERROR_INVALID_FUNCTION 6 ERROR_INVALID_HANDLE 132 ERROR_SEEK_ON_DEVICE 131 ERROR_NEGATIVE_SEEK 130 ERROR_DIRECT_ACCESS_HANDLE Remarks: The read/write pointer in a file is a signed 64-bit number. A negative value for Pos moves the pointer backward in the file; a positive value moves it forward. DosProtectSetFilePtrL cannot be used to move to a negative position in the file. DosProtectSetFilePtrL cannot be used for a character device or pipe. *) function DosProtectSetFilePtrL (Handle: THandle; Pos: int64; Method: cardinal; var PosActual: int64; FileHandleLockID: cardinal): cardinal; cdecl; (* DosProtectSetFileSizeL changes the size of a file. Parameters: Handle = handle of the file whose size to be changed. Size = new size, in bytes, of the file. FileHandleLockID = the filehandle lockid obtained from DosProtectOpenL. Possible return codes: 0 NO_ERROR 5 ERROR_ACCESS_DENIED 6 ERROR_INVALID_HANDLE 26 ERROR_NOT_DOS_DISK 33 ERROR_LOCK_VIOLATION 87 ERROR_INVALID_PARAMETER 112 ERROR_DISK_FULL Remarks: When DosProtectSetFileSizeL is issued, the file must be open in a mode that allows write access. The size of the open file can be truncated or extended. If the file size is being extended, the file system tries to allocate additional bytes in a contiguous (or nearly contiguous) space on the medium. The values of the new bytes are undefined. *) function DosProtectSetFileSizeL (Handle: THandle; Size: int64; FileHandleLockID: cardinal): cardinal; cdecl; (* DosGetProcessorStatus allows checking status of individual processors in a SMP machine. Parameters: ProcID = Procesor ID numbered 1 through n, where there are n processors in total. Status = Returned processor status defined as follows: PROC_OFFLINE 0x00000000 Processor is offline PROC_ONLINE 0x00000001 Processor is online Possible return codes: 0 NO_ERROR 87 ERROR_INVALID_PARAMETER *) function DosGetProcessorStatus (ProcID: cardinal; var Status: cardinal): cardinal; cdecl; (* DosSetProcessorStatus sets the ONLINE or OFFLINE status of a processor on an SMP system. The processor status may be queried using DosGetProcessorStatus. ONLINE status implies the processor is available for running work. OFFLINE status implies the processor is not available for running work. The processor that executes DosSetProcessorStatus must be ONLINE. Parameters: ProcID = Processor ID numbered from 1 through n, where there are n processors in total. Status = Requested processor status defined as follows: PROC_OFFLINE 0x00000000 Processor is offline. PROC_ONLINE 0x00000001 Processor is online. Possible return codes: 0 NO_ERROR 87 ERROR_INVALID_PARAMETER *) function DosSetProcessorStatus (ProcID: cardinal; Status: cardinal): cardinal; cdecl; (* DosQueryThreadAffinity allows a thread to inquire for the current thread's processor affinity mask and the system's capable processor affinity mask. Parameters: Scope = Scope of the query defined by one of the following values: AFNTY_THREAD Return the current threads processor affinity mask. AFNTY_SYSTEM Return the system's current capable processor affinity mask. AffinityMask = Affinity mask is returned here; processors 0..31 are in Mask [0] and processors 32..63 are in Mask [1]. Possible return codes: 13 ERROR_INVALID_DATA 87 ERROR_INVALID_PARAMETER *) function DosQueryThreadAffinity (Scope: cardinal; var AffinityMask: TMPAffinity): cardinal; cdecl; (* DosQueryExtLibPath returns the current path to be searched before or after the system LIBPATH when locating DLLs. Parameters: ExtLIBPATH = Buffer for receiving the extended LIBPATH string. ??? If the buffer pointed to by this parameter is not large enough to hold the extended LIBPATH or an extended LIBPATH is not currently defined, this parameter returns a pointer to a NULL string. ??? How is it detected if the size is not passed??? Flags - flag indicating when the new path is searched - possible values: BEGIN_LIBPATH - The new path is searched before the LIBPATH. END_LIBPATH - The new path is searched after the LIBPATH. Possible return codes: 0 NO_ERROR 87 ERROR_INVALID_PARAMETER 122 ERROR_INSUFFICIENT_BUFER *) function DosQueryExtLibPath (ExtLibPath: PChar; Flags: cardinal): cardinal; cdecl; (* DosSetExtLibPath defines the current path to be searched before or after the system LIBPATH when locating DLLs. Parameters: ExtLIBPATH = New extended LIBPATH string. Maximum size is 1024 bytes. A pointer to a NULL string removes the extended LIBPATH. Flags = When the new path is searched - possible values: BEGIN_LIBPATH (1) - the new path is searched before the LIBPATH. END_LIBPATH (2) - the new path is searched after the LIBPATH. The LIBPATH string is an environment variable found in the CONFIG.SYS file consisting of a set of paths. If a fully-qualified path is not specified when a module is loaded, the system searches these paths to find the DLL. There are two extended LIBPATH strings, BeginLIBPATH and EndLIBPATH. BeginLIBPATH is searched before the system LIBPATH, and EndLIBPATH is searched after both BeginLIBPATH and the system LIBPATH. These extended LIBPATHs can be set either from the command line using the "SET" command, or by calling DosSetExtLIBPATH. When DosSetExtLIBPATH is called, all modifications become specific to that process. Initial settings can be set for all processes in the system by setting the values in CONFIG.SYS using the "set" command. Note: The extended LIBPATHs are not true environment variables, and do not appear when querying the environment. Every process inherits the settings of BeginLIBPATH and EndLIBPATH from the process that starts it. If the extended library paths are initialized in CONFIG.SYS, those extended library paths become the initial settings for new processes. If a process changes BeginLIBPATH or EndLIBPATH and starts a new process, the new child process inherits the changed contents. Child processes that inherit their parent's extended LIBPATHs maintain their own copy. Modifications made by the parent after the child has been created have no effect on the children. This function permits the use of two symbols within the path string: %BeginLIBPATH% and %EndLIBPATH%. These symbols are replaced with the current string settings for the extended library paths. The LIBPATHs strings are only searched when the specified DLL is not currently loaded. The only way to guarantee that the DLL being used is the correct version is to set the fully-qualified path in DosLoadModule. When a request is made to load a module and a path is not specified, the system searches the paths in the LIBPATH string and uses the first instance of the specified DLL it finds. If the new paths are added to the search strings, the system does not check those directories to see if a different version exists. Consequently, if two processes started from different directories use the same DLL, but different versions of that DLL exist in both directories, the version of the DLL loaded by the first process is the one used by both processes. The only way to prevent this from occurring is to specify the path to the DLL when DosLoadModule is called. Consequently, if one process sets its BeginLIBPATH to C:\PROCESS1\DLL and loads the DLL MYAPP.DLL from that directory, and then a second process sets its BeginLIBPATH to C:\PROCESS2\DLL and there is for a different version of MYAPP.DLL in C:\PROCESS2\DLL, the second process will link to the DLL from C:\PROCESS1\DLL since it was already loaded. Both BeginLIBPATH and EndLIBPATH can be set from the command line using the SET command. Possible return codes: 0 NO_ERROR 8 ERROR_NOT_ENOUGH_MEMORY 87 ERROR_INVALID_PARAMETER 161 ERROR_BAD_PATHNAME *) function DosSetExtLibPath (ExtLibPath: PChar; Flags: cardinal): cardinal; cdecl; (* DosQueryModFromEIP queries a module handle and name from a given flat address. It takes a flat 32 bit address as a parameter and returns information about the module (a protected mode application currently executing) owning the storage. Parameters: HMod = Address of a location in which the module handle is returned. ObjNum = Address of a cardinal where the module object number corresponding to the Address is returned. The object number is zero based. BuffLen = Length of the user supplied buffer pointed to by Buff. Buff = Address of a user supplied buffer in which the module name is returned. Offset = Address where the offset to the object corresponding to the Address is returned. The offset is zero based. Address = Input address to be queried. Possible return codes: 0 NO_ERROR 87 ERROR_INVALID_PARAMETER 487 ERROR_INVALID_ADDRESS *) function DosQueryModFromEIP (var HMod: THandle; var ObjNum: cardinal; BuffLen: cardinal; Buff: PChar; var Offset: cardinal; Address: PtrUInt): cardinal; cdecl; (* DosDumpProcess initiates a process dump from a specified process. This may be used as part of an error handling routine to gather information about an error that may be analyzed later using the OS/2 System Dump Formatter. Configuration of Process Dump may be done using the PDUMPSYS, PDUMPUSR, and PROCDUMP commands. Parameters: Flag = Function to be performed (one of DDP_* constants). DDP_DISABLEPROCDUMP (0) - disable process dumps DDP_ENABLEPROCDUMP (1) - enable process dumps DDP_PERFORMPROCDUMP (2) - perform process dump (if the user enabled it using the PROCDUMP command; ERROR_INVALID_PARAMETER is returned otherwise) Drive = The ASCII character for the drive on which process dump files are to be created, or 0 to use the drive originally specified by the user using the PROCDUMP command. This is required only with the DDP_ENABLEPROCDUMP (PROCDUMP command allows customizing fully the drive and path). PID = The process to be dumped. 0 specifies the current process; otherwise a valid process ID must be specified. This parameter is actioned only with DDP_PERFORMPROCDUMP. Possible return Codes. 0 NO_ERROR 87 ERROR_INVALID PARAMETER Remarks: Use the PDUMPUSR command to specify what information will be dumped. Use the PROCDUMP command to customize options per process and in particular to specify whether child or parent process will be dumped. For maximum flexibility the use of DosDumpProcess should be limited to the DDP_PERFORMPROCDUMP function. This allows you to specify whether Process Dump should be enabled through the use of the PROCDUMP command. You may customize Process Dump completely through use of the PDUMPUSR, PDUMPSYS, AND PROCDUMP commands. For further information, see PROCDUMP.DOC in the OS2\SYSTEM\RAS directory. DDP_ENABLEPROCDUMP and DDP_DISABLEPROCDUMP are provided for backwards compatibility only. *) function DosDumpProcess (Flag: cardinal; Drive: char; PID: cardinal): cardinal; cdecl; (* Suppress application trap popups and log them to the file POPUPLOG.OS2. Parameters: Flag = Flag indicating whether pop-up suppression should be enabled or disabled (one of SPU_* constants - 0 or 1). Drive = The drive letter for the log file (used only when pop-up suppression is enabled). Remarks: When pop-ups are suppressed through DosSuppressPopUps, the system does not display trap screens on the user's terminal. The user will not be required to respond to the abort, retry, continue message. Instead, the system displays message SYS3571 and logs the name of the process to the POPUPLOG.OS2 log file in the root directory of the specified drive. The system will also log the message inserts in the log file. If the log file does not exist, the system will create it. If the log file exists, the system appends to it. If the system cannot open the file (for example, because the drive does not exist), the system will not log the pop-up information. When pop-up suppression is enabled, the system overrides any settings established by DosError on a per-process basis. This API overrides the potential initial setting (e.g. 'SUPPRESSPOPUPS=c') in CONFIG.SYS. The drive letter for the log file may also be specified on the DosSuppressPopUps API. If an invalid flag (a flag other than SPU_ENABLESUPPRESSION or SPU_DISABLESUPPRESSION) or an invalid drive (a drive other than an upper- or lowercase letter) is specified on DosSuppressPopUps, the system returns error code ERROR_INVALID_PARAMETER. Otherwise, the system returns NO_ERROR. Possible error codes: 0 NO_ERROR 87 ERROR_INVALID_PARAMETER *) function DosSuppressPopups (Flag: cardinal; Drive: char): cardinal; cdecl; (* DosPerfSysCall retrieves system performance information and performs software tracing. Parameters: Command = Command to be performed; the following commands are accepted: CMD_KI_RDCNT ($63) - reads CPU utilization information in both uniprocessor and symmetric multi-processor (SMP) environments by taking a snapshot of the time stamp counters. To determine CPU utilization, the application must compute the difference between two time stamp snapshots using 64 bit aritimetic. CMD_SOFTTRACE_LOG ($14) - records software trace information. Parm1 (CPUUtil) = Command-specific. In case of CMD_KI_RDCNT, pointer to TCPUUtil record. In case of CMD_SOFTTRACE_LOG, major code for the trace entry in the range of 0 to 255. Major codes 184 ($B8) and 185 ($B9) have been reserved for IBM customer use. Major code 1 is reserved for exclusive use by IBM. Parm2 = Command-specific. In case of CMD_KI_RdCnt, it must be 0. In case of CMD_SOFTTRACE_LOG, minor code for the trace entry in the range of 0 to 255. Parm3 (HookData) = Command-specific. In case of CMD_KI_RdCnt, it must be 0. In case of CMD_SOFTTRACE_LOG, pointer to a HOOKDATA data structure (see example code). Possible return codes: 0 NO_ERROR 1 ERROR_INVALID_FUNCTION Remarks: DosPerfSysCall is a general purpose performance function. This function accepts four parameters. The first parameter is the command requested. The other three parameters are command specific. Some functions of DosPerfSysCall may have a dependency on Intel Pentium or Pentium-Pro (or higher) support. If a function cannot be provided because OS/2 is not running on a processor with the required features, a return code will indicate an attempt to use an unsupported function. Example code (C): int main (int argc, char *argv[]) { APIRET rc; BYTE HookBuffer [256]; HOOKDATA Hookdata = {0,HookBuffer}; ULONG ulMajor, ulMinor; *((PULONG) HookBuffer[0]) = 1; *((PULONG) HookBuffer[4]) = 2; *((PULONG) HookBuffer[8]) = 3; strcpy((PSZ HookBuffer[12], "Test of 3 ULONG values and a string.") HookData.ulLength = 12 + strlen((PSZ HookBuffer[12]) + 1; ulMajor = 0x00b8 ulMinor = 0x0001 rc = DosPerfSystCall(CMD_SOFTTRACE_LOG, ulMajor, ulMinor, (ULONG) HookData); if (rc != NO_ERROR) { fprintf (stderr, "CMD_SOFTTRACE_LOG failed rc = %u\n", rc); return 1; } return NO_ERROR; } *) function DosPerfSysCall (Command, Parm1, Parm2, Parm3: cardinal): cardinal; cdecl; function DosPerfSysCall (Command, Parm1, Parm2: cardinal; var HookData): cardinal; cdecl; function DosPerfSysCall (Command: cardinal; var CpuUtil: TCPUUtil; Parm2, Parm3: cardinal): cardinal; cdecl; (* Query context of a suspended thread. Parameters: TID = Thread ID Level = Desired level of information Context = Thread context record DosQueryThreadContext returns the context record of a suspended thread. A thread may be suspended by using DosSuspendThread or DosEnterCritSec. If DosSuspendThread is used, the caller must allow some time for OS/2 to suspend the thread before querying its context. Note: Values from the thread context should be used only when the state of the target thread is known. Possible return codes: 0 NO_ERROR 87 ERROR_INVALID_PARAMETER 90 ERROR_NOT_FROZEN 115 ERROR_PROTECTION_VIOLATION 309 ERROR_INVALID_THREADID *) function DosQueryThreadContext (TID: cardinal; Level: cardinal; var Context: TContextRecord): cardinal; cdecl; (* DosQueryABIOSSupport returns flags that indicate various basic hardware configurations. Parameters: Reserved = Must be set to 0, no other value is defined. The result of this function contains combination of flags (HW_Cfg_* constants) signalizing the underlying hardware configuration. *) function DosQueryABIOSSupport (Reserved: cardinal): cardinal; cdecl; {***************************************************************************} implementation {***************************************************************************} uses OS2Def; function DummyDosCancelLockRequestL (Handle: THandle; var Lock: TFileLockL): cardinal; cdecl; var Lock0: TFileLock; begin if (Lock.Offset > high (longint)) or (Lock.Range > high (longint)) or (Lock.Offset < 0) or (Lock.Range < 0) then DummyDosCancelLockRequestL := Error_Invalid_Parameter else begin Lock0.Offset := longint (Lock.Offset); Lock0.Range := longint (Lock.Range); DummyDosCancelLockRequestL := DosCancelLockRequest (Handle, Lock0); end; end; function DummyDosProtectSetFileLocksL (Handle: THandle; var Unlock: TFileLockL; var Lock: TFileLockL; Timeout: cardinal; Flags: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; var Lock0: TFileLock; UnLock0: TFileLock; begin if (Lock.Offset > high (longint)) or (Lock.Range > high (longint)) or (Unlock.Offset > high (longint)) or (Unlock.Range > high (longint)) then DummyDosProtectSetFileLocksL := Error_Invalid_Parameter else begin Lock0.Offset := longint (Lock.Offset); Lock0.Range := longint (Lock.Range); Unlock0.Offset := longint (Unlock.Offset); Unlock0.Range := longint (Lock.Range); DummyDosProtectSetFileLocksL := DosProtectSetFileLocks (Handle, Unlock0, Lock0, Timeout, Flags, FileHandleLockID); end; end; function DummyDosSetFileLocksL (Handle: THandle; var Unlock: TFileLockL; var Lock: TFileLockL; Timeout: cardinal; Flags: cardinal): cardinal; cdecl; var Lock0: TFileLock; UnLock0: TFileLock; begin if (Lock.Offset > high (longint)) or (Lock.Range > high (longint)) or (Lock.Offset < 0) or (Lock.Range < 0) or (Unlock.Offset < 0) or (Unlock.Range < 0) or (Unlock.Offset > high (longint)) or (Unlock.Range > high (longint)) then DummyDosSetFileLocksL := Error_Invalid_Parameter else begin Lock0.Offset := longint (Lock.Offset); Lock0.Range := longint (Lock.Range); Unlock0.Offset := longint (Unlock.Offset); Unlock0.Range := longint (Lock.Range); DummyDosSetFileLocksL := DosSetFileLocks (Handle, Unlock0, Lock0, Timeout, Flags); end; end; function DummyDosProtectOpenL (FileName: PChar; var Handle: THandle; var Action: cardinal; InitSize: int64; Attrib, OpenFlags, OpenMode: cardinal; EA: PEAOp2; var FileHandleLockID: cardinal): cardinal; cdecl; begin if InitSize > high (longint) then DummyDosProtectOpenL := Error_Invalid_Parameter else DummyDosProtectOpenL := DosProtectOpen (FileName, Handle, Action, longint (InitSize), Attrib, OpenFlags, OpenMode, EA, FileHandleLockID); end; function DummyDosProtectSetFilePtrL (Handle: THandle; Pos: int64; Method: cardinal; var PosActual: int64; FileHandleLockID: cardinal): cardinal; cdecl; var PosActual0: cardinal; begin if (Pos < low (longint)) or (Pos > high (longint)) then DummyDosProtectSetFilePtrL := Error_Invalid_Parameter else begin DummyDosProtectSetFilePtrL := DosProtectSetFilePtr (Handle, longint (Pos), Method, PosActual0, FileHandleLockID); PosActual := PosActual0; end; end; function DummyDosProtectSetFileSizeL (Handle: THandle; Size: int64; FileHandleLockID: cardinal): cardinal; cdecl; begin if (Size > high (cardinal)) then DummyDosProtectSetFileSizeL := Error_Invalid_Parameter else DummyDosProtectSetFileSizeL := DosProtectSetFileSize (Handle, cardinal (Size), FileHandleLockID); end; function DummyDosProtectSetFileLocks (Handle: THandle; var Unlock, Lock: TFileLock; Timeout, Flags: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; begin if FileHandleLockID <> 0 then DummyDosProtectSetFileLocks := Error_Invalid_Parameter else DummyDosProtectSetFileLocks := DosSetFileLocks (Handle, Unlock, Lock, Timeout, Flags); end; function DummyDosProtectOpen (FileName: PChar; var Handle: THandle; var Action: cardinal; InitSize, Attrib, OpenFlags, OpenMode: cardinal; ea: PEAOp2; var FileHandleLockID: cardinal): cardinal; cdecl; begin DummyDosProtectOpen := DosOpen (FileName, Handle, Action, InitSize, Attrib, OpenFlags, OpenMode, EA); FileHandleLockID := 0; end; function DummyDosProtectClose (Handle: THandle; FileHandleLockID: cardinal): cardinal; cdecl; begin DummyDosProtectClose := DosClose (Handle); end; function DummyDosProtectRead (Handle: THandle; var Buffer; Count: cardinal; var ActCount: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; begin DummyDosProtectRead := DosRead (Handle, Buffer, Count, ActCount); end; function DummyDosProtectWrite (Handle: THandle; const Buffer; Count: cardinal; var ActCount: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; begin DummyDosProtectWrite := DosWrite (Handle, Buffer, Count, ActCount); end; function DummyDosProtectSetFilePtr (Handle: THandle; Pos: longint; Method: cardinal; var PosActual: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; begin DummyDosProtectSetFilePtr := DosSetFilePtr (Handle, Pos, Method, PosActual); end; function DummyDosProtectSetFileSize (Handle: THandle; Size: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; begin DummyDosProtectSetFileSize := DosSetFileSize (Handle, Size); end; function DummyDosProtectQueryFHState (Handle: THandle; var FileMode: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; begin DummyDosProtectQueryFHState := DosQueryFHState (Handle, FileMode); end; function DummyDosProtectSetFHState (Handle: THandle; FileMode: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; begin DummyDosProtectSetFHState := DosSetFHState (Handle, FileMode); end; function DummyDosProtectQueryFileInfo (Handle: THandle; InfoLevel: cardinal; AFileStatus: PFileStatus; FileStatusLen: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; begin DummyDosProtectQueryFileInfo := DosQueryFileInfo (Handle, InfoLevel, AFileStatus, FileStatusLen); end; function DummyDosProtectSetFileInfo (Handle: THandle; InfoLevel: cardinal; AFileStatus: PFileStatus; FileStatusLen: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; begin DummyDosProtectSetFileInfo := DosSetFileInfo (Handle, InfoLevel, AFileStatus, FileStatusLen); end; function DummyDosProtectEnumAttribute (RefType: cardinal; AFile: pointer; Entry: cardinal; var Buf; BufSize: cardinal; var Count: cardinal; InfoLevel: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; begin DummyDosProtectEnumAttribute := DosEnumAttribute (RefType, AFile, Entry, Buf, BufSize, Count, InfoLevel); end; function DummyDosGetProcessorStatus (ProcID: cardinal; var Status: cardinal): cardinal; cdecl; begin if ProcID = 1 then begin Status := 1; DummyDosGetProcessorStatus := No_Error; end else DummyDosGetProcessorStatus := Error_Invalid_Parameter; end; function DummyDosSetProcessorStatus (ProcID: cardinal; Status: cardinal): cardinal; cdecl; begin DummyDosSetProcessorStatus := Error_Invalid_Parameter; end; function DummyDosQueryThreadAffinity (Scope: cardinal; var AffinityMask: TMPAffinity): cardinal; cdecl; begin DummyDosQueryThreadAffinity := Error_Invalid_Function; end; function DummyDosSetThreadAffinity (var AffinityMask: TMPAffinity): cardinal; cdecl; begin DummyDosSetThreadAffinity := Error_Invalid_Function; end; function DummyDosQueryExtLibPath (ExtLibPath: PChar; Flags: cardinal): cardinal; cdecl; begin if ExtLibPath <> nil then begin ExtLibPath := #0; DummyDosQueryExtLibPath := No_Error; end else DummyDosQueryExtLibPath := Error_Invalid_Parameter; end; function DummyDosSetExtLibPath (ExtLibPath: PChar; Flags: cardinal): cardinal; cdecl; begin DummyDosSetExtLibPath := Error_Not_Enough_Memory; end; function DummyDosQueryModFromEIP (var HMod: THandle; var ObjNum: cardinal; BuffLen: cardinal; Buff: PChar; var Offset: cardinal; Address: PtrUInt): cardinal; cdecl; begin DummyDosQueryModFromEIP := Error_Invalid_Parameter; HMod := THandle (-1); ObjNum := 0; if Buff <> nil then Buff^ := #0; Offset := 0; end; function DummyDosDumpProcess (Flag: cardinal; Drive: cardinal; PID: cardinal): cardinal; cdecl; begin DummyDosDumpProcess := Error_Invalid_Function; end; function DummyDosSuppressPopups (Flag: cardinal; Drive: char): cardinal; cdecl; begin DummyDosSuppressPopups := Error_Invalid_Function; end; function DummyDosPerfSysCall (Command, Parm1, Parm2, Parm3: cardinal): cardinal; cdecl; begin DummyDosPerfSysCall := Error_Invalid_Function; end; function DummyDosQueryThreadContext (TID: cardinal; Level: cardinal; var Context: TContextRecord): cardinal; cdecl; begin DummyDosQueryThreadContext := Error_Invalid_Function; end; function DummyDosQueryABIOSSupport (Reserved: cardinal): cardinal; cdecl; begin DummyDosQueryABIOSSupport := 0; end; type TDosProtectOpen = function (FileName: PChar; var Handle: THandle; var Action: cardinal; InitSize, Attrib, OpenFlags, OpenMode: cardinal; ea: PEAOp2; var FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectClose = function (Handle: THandle; FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectRead = function (Handle: THandle; var Buffer; Count: cardinal; var ActCount: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectWrite = function (Handle: THandle; const Buffer; Count: cardinal; var ActCount: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectSetFilePtr = function (Handle: THandle; Pos: longint; Method: cardinal; var PosActual: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectSetFileSize = function (Handle: THandle; Size: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectQueryFHState = function (Handle: THandle; var FileMode: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectSetFHState = function (Handle: THandle; FileMode: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectQueryFileInfo = function (Handle: THandle; InfoLevel: cardinal; AFileStatus: PFileStatus; FileStatusLen: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectSetFileInfo = function (Handle: THandle; InfoLevel: cardinal; AFileStatus: PFileStatus; FileStatusLen: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectEnumAttribute = function (RefType: cardinal; AFile: pointer; Entry: cardinal; var Buf; BufSize: cardinal; var Count: cardinal; InfoLevel: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectSetFileLocks = function (Handle: THandle; var Unlock, Lock: TFileLock; Timeout, Flags: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; TDosCancelLockRequestL = function (Handle: THandle; var Lock: TFileLockL): cardinal; cdecl; TDosProtectSetFileLocksL = function (Handle: THandle; var Unlock: TFileLockL; var Lock: TFileLockL; Timeout: cardinal; Flags: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; TDosSetFileLocksL = function (Handle: THandle; var Unlock: TFileLockL; var Lock: TFileLockL; Timeout: cardinal; Flags: cardinal): cardinal; cdecl; TDosProtectOpenL = function (FileName: PChar; var Handle: THandle; var Action: cardinal; InitSize: int64; Attrib, OpenFlags, OpenMode: cardinal; EA: PEAOp2; var FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectSetFilePtrL = function (Handle: THandle; Pos: int64; Method: cardinal; var PosActual: int64; FileHandleLockID: cardinal): cardinal; cdecl; TDosProtectSetFileSizeL = function (Handle: THandle; Size: int64; FileHandleLockID: cardinal): cardinal; cdecl; TDosGetProcessorStatus = function (ProcID: cardinal; var Status: cardinal): cardinal; cdecl; TDosSetProcessorStatus = function (ProcID: cardinal; Status: cardinal): cardinal; cdecl; TDosQueryThreadAffinity = function (Scope: cardinal; var AffinityMask: TMPAffinity): cardinal; cdecl; TDosSetThreadAffinity = function (var AffinityMask: TMPAffinity): cardinal; cdecl; TDosQueryExtLibPath = function (ExtLibPath: PChar; Flags: cardinal): cardinal; cdecl; TDosSetExtLibPath = function (ExtLibPath: PChar; Flags: cardinal): cardinal; cdecl; TDosQueryModFromEIP = function (var HMod: THandle; var ObjNum: cardinal; BuffLen: cardinal; Buff: PChar; var Offset: cardinal; Address: PtrUInt): cardinal; cdecl; TDosDumpProcess = function (Flag: cardinal; Drive: cardinal; PID: cardinal): cardinal; cdecl; TDosSuppressPopups = function (Flag: cardinal; Drive: char): cardinal; cdecl; TDosPerfSysCall = function (Command, Parm1, Parm2, Parm3: cardinal): cardinal; cdecl; TDosQueryThreadContext = function (TID: cardinal; Level: cardinal; var Context: TContextRecord): cardinal; cdecl; TDosQueryABIOSSupport = function (Reserved: cardinal): cardinal; cdecl; const Sys_DosCancelLockRequestL: TDosCancelLockRequestL = @DummyDosCancelLockRequestL; Sys_DosSetFileLocksL: TDosSetFileLocksL = @DummyDosSetFileLocksL; Sys_DosProtectSetFileLocksL: TDosProtectSetFileLocksL = @DummyDosProtectSetFileLocksL; Sys_DosProtectOpenL: TDosProtectOpenL = @DummyDosProtectOpenL; Sys_DosProtectSetFilePtrL: TDosProtectSetFilePtrL = @DummyDosProtectSetFilePtrL; Sys_DosProtectSetFileSizeL: TDosProtectSetFileSizeL = @DummyDosProtectSetFileSizeL; Sys_DosProtectOpen: TDosProtectOpen = @DummyDosProtectOpen; Sys_DosProtectClose: TDosProtectClose = @DummyDosProtectClose; Sys_DosProtectRead: TDosProtectRead = @DummyDosProtectRead; Sys_DosProtectWrite: TDosProtectWrite = @DummyDosProtectWrite; Sys_DosProtectSetFilePtr: TDosProtectSetFilePtr = @DummyDosProtectSetFilePtr; Sys_DosProtectSetFileSize: TDosProtectSetFileSize = @DummyDosProtectSetFileSize; Sys_DosProtectQueryFHState: TDosProtectQueryFHState = @DummyDosProtectQueryFHState; Sys_DosProtectSetFHState: TDosProtectSetFHState = @DummyDosProtectSetFHState; Sys_DosProtectQueryFileInfo: TDosProtectQueryFileInfo = @DummyDosProtectQueryFileInfo; Sys_DosProtectSetFileInfo: TDosProtectSetFileInfo = @DummyDosProtectSetFileInfo; Sys_DosProtectEnumAttribute: TDosProtectEnumAttribute = @DummyDosProtectEnumAttribute; Sys_DosProtectSetFileLocks: TDosProtectSetFileLocks = @DummyDosProtectSetFileLocks; Sys_DosGetProcessorStatus: TDosGetProcessorStatus = @DummyDosGetProcessorStatus; Sys_DosSetProcessorStatus: TDosSetProcessorStatus = @DummyDosSetProcessorStatus; Sys_DosQueryThreadAffinity: TDosQueryThreadAffinity = @DummyDosQueryThreadAffinity; Sys_DosSetThreadAffinity: TDosSetThreadAffinity = @DummyDosSetThreadAffinity; Sys_DosQueryExtLibPath: TDosQueryExtLibPath = @DummyDosQueryExtLibPath; Sys_DosSetExtLibPath: TDosSetExtLibPath = @DummyDosSetExtLibPath; Sys_DosQueryModFromEIP: TDosQueryModFromEIP = @DummyDosQueryModFromEIP; Sys_DosDumpProcess: TDosDumpProcess = @DummyDosDumpProcess; Sys_DosSuppressPopups: TDosSuppressPopups = @DummyDosSuppressPopups; Sys_DosPerfSysCall: TDosPerfSysCall = @DummyDosPerfSysCall; Sys_DosQueryThreadContext: TDosQueryThreadContext = @DummyDosQueryThreadContext; Sys_DosQueryABIOSSupport: TDosQueryABIOSSupport = @DummyDosQueryABIOSSupport; function DosOpenL (FileName: PChar; var Handle: THandle; var Action: cardinal; InitSize: int64; Attrib, OpenFlags, FileMode: cardinal; EA: pointer): cardinal; cdecl; inline; begin DosOpenL := Sys_DosOpenL (FileName, Handle, Action, InitSize, Attrib, OpenFlags, FileMode, EA); end; function DosSetFilePtrL (Handle: THandle; Pos: int64; Method: cardinal; var PosActual: int64): cardinal; cdecl; inline; begin DosSetFilePtrL := Sys_DosSetFilePtrL (Handle, Pos, Method, PosActual); end; function DosSetFileSizeL (Handle: THandle; Size: int64): cardinal; cdecl; inline; begin DosSetFileSizeL := Sys_DosSetFileSizeL (Handle, Size); end; function DosProtectOpen (FileName: PChar; var Handle: THandle; var Action: cardinal; InitSize, Attrib, OpenFlags, OpenMode: cardinal; EA: PEAOp2; var FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectOpen := Sys_DosProtectOpen (FileName, Handle, Action, InitSize, Attrib, OpenFlags, OpenMode, EA, FileHandleLockID); end; function DosProtectClose (Handle: THandle; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectClose := Sys_DosProtectClose (Handle, FileHandleLockID); end; function DosProtectRead (Handle: THandle; var Buffer; Count: cardinal; var ActCount: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectRead := Sys_DosProtectRead (Handle, Buffer, Count, ActCount, FileHandleLockID); end; function DosProtectWrite (Handle: THandle; const Buffer; Count: cardinal; var ActCount: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectWrite := Sys_DosProtectWrite (Handle, Buffer, Count, ActCount, FileHandleLockID); end; function DosProtectSetFilePtr (Handle: THandle; Pos: longint; Method: cardinal; var PosActual: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectSetFilePtr := Sys_DosProtectSetFilePtr (Handle, Pos, Method, PosActual, FileHandleLockID); end; function DosProtectSetFileSize (Handle: THandle; Size: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectSetFileSize := Sys_DosProtectSetFileSize (Handle, Size, FileHandleLockID); end; function DosProtectQueryFHState (Handle: THandle; var FileMode: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectQueryFHState := Sys_DosProtectQueryFHState (Handle, FileMode, FileHandleLockID); end; function DosProtectSetFHState (Handle: THandle; FileMode: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectSetFHState := Sys_DosProtectSetFHState (Handle, FileMode, FileHandleLockID); end; function DosProtectQueryFileInfo (Handle: THandle; InfoLevel: cardinal; AFileStatus: PFileStatus; FileStatusLen: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectQueryFileInfo := Sys_DosProtectQueryFileInfo (Handle, InfoLevel, AFileStatus, FileStatusLen, FileHandleLockID); end; function DosProtectSetFileInfo (Handle: THandle; InfoLevel: cardinal; AFileStatus: PFileStatus; FileStatusLen: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectSetFileInfo := Sys_DosProtectSetFileInfo (Handle, InfoLevel, AFileStatus, FileStatusLen, FileHandleLockID); end; function DosProtectEnumAttribute (RefType: cardinal; AFile: pointer; Entry: cardinal; var Buf; BufSize: cardinal; var Count: cardinal; InfoLevel: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectEnumAttribute := Sys_DosProtectEnumAttribute (RefType, AFile, Entry, Buf, BufSize, Count, InfoLevel, FileHandleLockID); end; function DosProtectSetFileLocks (Handle: THandle; var Unlock, Lock: TFileLock; Timeout, Flags: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectSetFileLocks := Sys_DosProtectSetFileLocks (Handle, Unlock, Lock, Timeout, Flags, FileHandleLockID); end; function DosProtectOpen (FileName: PChar; var Handle: longint; var Action: longint; InitSize, Attrib, OpenFlags, OpenMode: longint; ea: PEAOp2; var FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectOpen := Sys_DosProtectOpen (FileName, THandle (Handle), cardinal (Action), cardinal (InitSize), cardinal (Attrib), cardinal (OpenFlags), cardinal (OpenMode), EA, FileHandleLockID); end; function DosProtectOpen (const FileName: string; var Handle: longint; var Action: longint; InitSize, Attrib, OpenFlags, OpenMode: longint; ea: PEAOp2; var FileHandleLockID: cardinal): cardinal; var T: array [0..255] of char; begin StrPCopy (@T, FileName); DosProtectOpen := Sys_DosProtectOpen (@T, THandle (Handle), cardinal (Action), cardinal (InitSize), cardinal (Attrib), cardinal (OpenFlags), cardinal (OpenMode), EA, FileHandleLockID); end; function DosProtectOpen (const FileName: string; var Handle: THandle; var Action: cardinal; InitSize, Attrib, OpenFlags, OpenMode: cardinal; ea: PEAOp2; var FileHandleLockID: cardinal): cardinal; var T: array [0..255] of char; begin StrPCopy (@T, FileName); DosProtectOpen := Sys_DosProtectOpen (@T, Handle, Action, InitSize, Attrib, OpenFlags, OpenMode, EA, FileHandleLockID); end; function DosProtectRead (Handle: longint; var Buffer; Count: longint; var ActCount: longint; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectRead := Sys_DosProtectRead (THandle (Handle), Buffer, cardinal (Count), cardinal (ActCount), FileHandleLockID); end; function DosProtectWrite (Handle: longint; const Buffer; Count: longint; var ActCount: longint; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectWrite := Sys_DosProtectWrite (THandle (Handle), Buffer, cardinal (Count), cardinal (ActCount), FileHandleLockID); end; function DosProtectSetFilePtr (Handle: longint; Pos, Method: longint; var PosActual: longint; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectSetFilePtr := Sys_DosProtectSetFilePtr (THandle (Handle), cardinal (Pos), cardinal (Method), cardinal (PosActual), FileHandleLockID); end; function DosProtectSetFilePtr (Handle: THandle; Pos: longint; FileHandleLockID: cardinal): cardinal; var PosActual: cardinal; begin DosProtectSetFilePtr := DosProtectSetFilePtr (Handle, Pos, 0, PosActual, FileHandleLockID); end; function DosProtectGetFilePtr (Handle: longint; var PosActual: longint; FileHandleLockID: cardinal): cardinal; begin DosProtectGetFilePtr := DosProtectSetFilePtr (THandle (Handle), 0, 1, cardinal (PosActual), FileHandleLockID); end; function DosProtectGetFilePtr (Handle: THandle; var PosActual: cardinal; FileHandleLockID: cardinal): cardinal; begin DosProtectGetFilePtr := DosProtectSetFilePtr (Handle, 0, 1, PosActual, FileHandleLockID); end; function DosProtectEnumAttribute (Handle: THandle; Entry: cardinal; var Buf; BufSize: cardinal; var Count: cardinal; InfoLevel: cardinal; FileHandleLockID: cardinal): cardinal; begin DosProtectEnumAttribute := DosProtectEnumAttribute (0, @Handle, Entry, Buf, BufSize, Count, InfoLevel, FileHandleLockID); end; function DosProtectEnumAttribute (const FileName: string; Entry: cardinal; var Buf; BufSize: cardinal; var Count: cardinal; InfoLevel: cardinal; FileHandleLockID: cardinal): cardinal; var T: array [0..255] of char; begin StrPCopy (@T, FileName); DosProtectEnumAttribute := DosProtectEnumAttribute (1, @T, Entry, Buf, BufSize, Count, InfoLevel, FileHandleLockID); end; function DosCancelLockRequestL (Handle: THandle; var Lock: TFileLockL): cardinal; cdecl; inline; begin DosCancelLockRequestL := Sys_DosCancelLockRequestL (Handle, Lock); end; function DosProtectSetFileLocksL (Handle: THandle; var Unlock: TFileLockL; var Lock: TFileLockL; Timeout: cardinal; Flags: cardinal; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectSetFileLocksL := Sys_DosProtectSetFileLocksL (Handle, Unlock, Lock, Timeout, Flags, FileHandleLockID); end; function DosSetFileLocksL (Handle: THandle; var Unlock: TFileLockL; var Lock: TFileLockL; Timeout: cardinal; Flags: cardinal): cardinal; cdecl; inline; begin DosSetFileLocksL := Sys_DosSetFileLocksL (Handle, Unlock, Lock, Timeout, Flags); end; function DosProtectOpenL (FileName: PChar; var Handle: THandle; var Action: cardinal; InitSize: int64; Attrib, OpenFlags, OpenMode: cardinal; EA: PEAOp2; var FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectOpenL := Sys_DosProtectOpenL (FileName, Handle, Action, InitSize, Attrib, OpenFlags, OpenMode, EA, FileHandleLockID); end; function DosProtectSetFilePtrL (Handle: THandle; Pos: int64; Method: cardinal; var PosActual: int64; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectSetFilePtrL := Sys_DosProtectSetFilePtrL (Handle, Pos, Method, PosActual, FileHandleLockID); end; function DosProtectSetFileSizeL (Handle: THandle; Size: int64; FileHandleLockID: cardinal): cardinal; cdecl; inline; begin DosProtectSetFileSizeL := Sys_DosProtectSetFileSizeL (Handle, Size, FileHandleLockID); end; function DosGetProcessorStatus (ProcID: cardinal; var Status: cardinal): cardinal; cdecl; inline; begin DosGetProcessorStatus := Sys_DosGetProcessorStatus (ProcID, Status); end; function DosSetProcessorStatus (ProcID: cardinal; Status: cardinal): cardinal; cdecl; inline; begin DosSetProcessorStatus := Sys_DosSetProcessorStatus (ProcID, Status); end; function DosQueryThreadAffinity (Scope: cardinal; var AffinityMask: TMPAffinity): cardinal; cdecl; inline; begin DosQueryThreadAffinity := Sys_DosQueryThreadAffinity (Scope, AffinityMask); end; function DosSetThreadAffinity (var AffinityMask: TMPAffinity): cardinal; cdecl; inline; begin DosSetThreadAffinity := Sys_DosSetThreadAffinity (AffinityMask); end; function DosQueryExtLibPath (ExtLibPath: PChar; Flags: cardinal): cardinal; cdecl; inline; begin DosQueryExtLibPath := Sys_DosQueryExtLibPath (ExtLibPath, Flags); end; function DosSetExtLibPath (ExtLibPath: PChar; Flags: cardinal): cardinal; cdecl; inline; begin DosSetExtLibPath := Sys_DosSetExtLibPath (ExtLibPath, Flags); end; function DosQueryModFromEIP (var HMod: THandle; var ObjNum: cardinal; BuffLen: cardinal; Buff: PChar; var Offset: cardinal; Address: PtrUInt): cardinal; cdecl; inline; begin DosQueryModFromEIP := Sys_DosQueryModFromEIP (HMod, ObjNum, BuffLen, Buff, Offset, Address); end; function DosDumpProcess (Flag: cardinal; Drive: char; PID: cardinal): cardinal; cdecl; inline; begin DosDumpProcess := Sys_DosDumpProcess (Flag, cardinal (Drive), PID); end; function DosSuppressPopups (Flag: cardinal; Drive: char): cardinal; cdecl; inline; begin DosSuppressPopups := Sys_DosSuppressPopups (Flag, Drive); end; function DosPerfSysCall (Command, Parm1, Parm2, Parm3: cardinal): cardinal; cdecl; inline; begin DosPerfSysCall := Sys_DosPerfSysCall (Command, Parm1, Parm2, Parm3); end; function DosPerfSysCall (Command, Parm1, Parm2: cardinal; var HookData): cardinal; cdecl; begin DosPerfSysCall := Sys_DosPerfSysCall (Command, Parm1, Parm2, PtrUInt (HookData)); end; function DosPerfSysCall (Command: cardinal; var CpuUtil: TCPUUtil; Parm2, Parm3: cardinal): cardinal; cdecl; begin DosPerfSysCall := Sys_DosPerfSysCall (Command, PtrUInt (@CPUUtil), Parm2, Parm3); end; function DosQueryThreadContext (TID: cardinal; Level: cardinal; var Context: TContextRecord): cardinal; cdecl; inline; begin DosQueryThreadContext := Sys_DosQueryThreadContext (TID, Level, Context); end; function DosQueryABIOSSupport (Reserved: cardinal): cardinal; cdecl; inline; begin DosQueryABIOSSupport := Sys_DosQueryABIOSSupport (Reserved); end; var P: pointer; begin if FSApi64 then (* DosCallsHandle successfully initialized during initialization of unit *) (* System and basic 64-bit functions were loaded successfully. *) begin if DosQueryProcAddr (DosCallsHandle, Ord_Dos32CancelLockRequestL, nil, P) = 0 then Sys_DosCancelLockRequestL := TDosCancelLockRequestL (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectSetFileLocksL, nil, P) = 0 then Sys_DosProtectSetFileLocksL := TDosProtectSetFileLocksL (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32SetFileLocksL, nil, P) = 0 then Sys_DosSetFileLocksL := TDosSetFileLocksL (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectOpenL, nil, P) = 0 then Sys_DosProtectOpenL := TDosProtectOpenL (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectSetFilePtrL, nil, P) = 0 then Sys_DosProtectSetFilePtrL := TDosProtectSetFilePtrL (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectSetFileSizeL, nil, P) = 0 then Sys_DosProtectSetFileSizeL := TDosProtectSetFileSizeL (P); end; if DosCallsHandle = THandle (-1) then Exit; if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectOpen, nil, P) = 0 then begin Sys_DosProtectOpen := TDosProtectOpen (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectClose, nil, P) = 0 then Sys_DosProtectClose := TDosProtectClose (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectRead, nil, P) = 0 then Sys_DosProtectRead := TDosProtectRead (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectWrite, nil, P) = 0 then Sys_DosProtectWrite := TDosProtectWrite (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectSetFilePtr, nil, P) = 0 then Sys_DosProtectSetFilePtr := TDosProtectSetFilePtr (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectSetFileSize, nil, P) = 0 then Sys_DosProtectSetFileSize := TDosProtectSetFileSize (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectQueryFHState, nil, P) = 0 then Sys_DosProtectQueryFHState := TDosProtectQueryFHState (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectSetFHState, nil, P) = 0 then Sys_DosProtectSetFHState := TDosProtectSetFHState (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectQueryFileInfo, nil, P) = 0 then Sys_DosProtectQueryFileInfo := TDosProtectQueryFileInfo (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectSetFileInfo, nil, P) = 0 then Sys_DosProtectSetFileInfo := TDosProtectSetFileInfo (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectEnumAttribute, nil, P) = 0 then Sys_DosProtectEnumAttribute := TDosProtectEnumAttribute (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32ProtectSetFileLocks, nil, P) = 0 then Sys_DosProtectSetFileLocks := TDosProtectSetFileLocks (P); end; if DosQueryProcAddr (DosCallsHandle, Ord_Dos32GetProcessorStatus, nil, P) = 0 then Sys_DosGetProcessorStatus := TDosGetProcessorStatus (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32SetProcessorStatus, nil, P) = 0 then Sys_DosSetProcessorStatus := TDosSetProcessorStatus (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32QueryThreadAffinity, nil, P) = 0 then Sys_DosQueryThreadAffinity := TDosQueryThreadAffinity (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32SetThreadAffinity, nil, P) = 0 then Sys_DosSetThreadAffinity := TDosSetThreadAffinity (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32QueryExtLibPath, nil, P) = 0 then Sys_DosQueryExtLibPath := TDosQueryExtLibPath (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32SetExtLibPath, nil, P) = 0 then Sys_DosSetExtLibPath := TDosSetExtLibPath (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32QueryModFromEIP, nil, P) = 0 then Sys_DosQueryModFromEIP := TDosQueryModFromEIP (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32DumpProcess, nil, P) = 0 then Sys_DosDumpProcess := TDosDumpProcess (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32SuppressPopups, nil, P) = 0 then Sys_DosSuppressPopups := TDosSuppressPopups (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32PerfSysCall, nil, P) = 0 then Sys_DosPerfSysCall := TDosPerfSysCall (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32QueryThreadContext, nil, P) = 0 then Sys_DosQueryThreadContext := TDosQueryThreadContext (P); if DosQueryProcAddr (DosCallsHandle, Ord_Dos32QueryABIOSSupport, nil, P) = 0 then Sys_DosQueryABIOSSupport := TDosQueryABIOSSupport (P); end. (* Todo: DosCreateSpinLock = DOSCALLS.449 - might be simulated using semaphores on non-SMP DosAcquireSpinLock = DOSCALLS.450 - might be simulated using semaphores on non-SMP DosReleaseSpinLock = DOSCALLS.451 - might be simulated using semaphores on non-SMP DosFreeSpinLock = DOSCALLS.452 - might be simulated using semaphores on non-SMP type TSpinLock = cardinal; HSpinLock = TSpinLock; PSpinLock = ^TSpinLock; PHSpinLock = PSpinLock; function DosCreateSpinLock (var SpinLock: TSpinLock): cardinal; cdecl; procedure DosAcquireSpinLock (SpinLock: TSpinLock); cdecl; procedure DosReleaseSpinLock (SpinLock: TSpinLock); cdecl; function DosFreeSpinLock (SpinLock: TSpinLock): cardinal; cdecl; DosQueryModFromEIP - may be simulated by returning empty value if not available or possibly by using data returned by DosQuerySysState (if they are equal across different OS/2 versions?) ___ function Dos16QueryModFromCS (...): ... external 'DOSCALLS' index 359; DosVerifyPidTid - may be implemented by analyzing information returned by DosQuerySysState x DosQueryExtLibPath - may be simulated by providing empty result if not available x DosSetExtLibPath - may be simulated by returning ERROR_NOT_ENOUGH_MEMORY if not available Dos32AcquireSpinLock | DOSCALLS | SMP | SMP Dos32FreeSpinLock | DOSCALLS | SMP | SMP x Dos32GetProcessorStatus | DOSCALLS | SMP | SMP Dos32ReleaseSpinLock | DOSCALLS | SMP | SMP x Dos32SetProcessorStatus | DOSCALLS | SMP | SMP Dos32TestPSD | DOSCALLS | SMP | SMP x Dos32QueryThreadAffinity | DOSCALLS | PROC | 2.45 (x) Dos32QueryThreadContext | DOSCALLS | XCPT | 2.40 x Dos32SetThreadAffinity | DOSCALLS | PROC | 2.45 Dos32AllocThreadLocalMemory | DOSCALLS | PROC | 2.30 Dos32FreeThreadLocalMemory | DOSCALLS | PROC | 2.30 Dos32ListIO | DOSCALLS | FILE | 2.45 x Dos32ProtectClose | DOSCALLS | FILE | 2.10 x Dos32ProtectEnumAttribute | DOSCALLS | FILE | 2.10 x Dos32ProtectOpen | DOSCALLS | FILE | 2.10 x Dos32ProtectQueryFHState | DOSCALLS | FILE | 2.10 x Dos32ProtectQueryFileInfo | DOSCALLS | FILE | 2.10 x Dos32ProtectRead | DOSCALLS | FILE | 2.10 x Dos32ProtectSetFHState | DOSCALLS | FILE | 2.10 x Dos32ProtectSetFileInfo | DOSCALLS | FILE | 2.10 x Dos32ProtectSetFileLocks | DOSCALLS | FILE | 2.10 x Dos32ProtectSetFilePtr | DOSCALLS | FILE | 2.10 x Dos32ProtectSetFileSize | DOSCALLS | FILE | 2.10 x Dos32ProtectWrite | DOSCALLS | FILE | 2.10 Dos32QueryABIOSSupport | DOSCALLS | MOD | 2.10 (x) Dos32QueryModFromEIP | DOSCALLS | MOD | 2.10 (x) Dos32SuppressPopUps | DOSCALLS | MISC | 2.10 Dos32VerifyPidTid | DOSCALLS | MISC | 2.30 *)