BaseUnix unit

Basic Unix functionality.

The BaseUnix unit was implemented by Marco Van de Voort. It contains basic Unix functionality. It supersedes the Linux unit of version 1.0.X of the compiler, but only implements a cleaned up, portable subset of that unit.

For porting FPC to new Unix-like platforms, it should be sufficient to implement the functionality in this unit for the new platform.

Classes and records

`cpu_set_t`	record
`Dir`	record	Record used in and calls.
`Dirent`	record	Record used in the function to return files in a directory.
`FLock`	record	Lock description type for lock call.
`iovec`	record	IO buffer structure.
`kernel_timespec`	record
`pollfd`	record	Poll structure.
`sigactionrec`	record	Record used in call.
`Stat`	record	Record describing an inode (file) in the call.
`statx64_timestamp`	record
`tfpreg`	record	Record describing floating point register in signal handler.
`tfpstate`	record	Record describing floating point unit in signal handler.
`tfpx_sw_bytes`	record	Extended state information in signal handler.
`tfpxreg`	record	Record describing 16-byte floating point register in signal handler.
`timezone`	record	Record describing a timezone.
`tms`	record	Record containing timings for call.
`TRLimit`	record	Structure to return RLimit data in.
`tsigaltstack`	record	Provide the location of an alternate signal handler stack.
`TSigContext`	record	Record describing the CPU context when a signal occurs.
`tsiginfo`	record	Record describing the signal when a signal occurs.
`tstatx64`	record
`TUcontext`	record	Context description record.
`txmmreg`	record	Record describing 16-byte MMX register in signal handler.
`UTimBuf`	record	Record used in to set file access and modification times.
`UtsName`	record	Record used to return kernel information in function.

Procedures and functions

`CreateShellArgV`	function	Create a null-terminated array of strings from a command-line string.
`FpAccess`	function	Check file access.
`FpAlarm`	function	Schedule an alarm signal to be delivered.
`FpChdir`	function	Change current working directory.
`FpChmod`	function	Change file permission bits.
`FpChown`	function	Change owner of file.
`FpClose`	function	Close file descriptor.
`FpClosedir`	function	Close directory file descriptor.
`FpDup`	function	Duplicate a file handle.
`FpDup2`	function	Duplicate one file handle to another.
`FpExecv`	function	Execute process.
`FpExecve`	function	Execute process using environment.
`FpExit`	procedure	Exit the current process.
`FpFcntl`	function	File control operations.
`fpFD_CLR`	function	Clears a file descriptor in a set.
`fpFD_ISSET`	function	Check whether a file descriptor is set.
`fpFD_SET`	function	Set a file descriptor in a set.
`fpFD_ZERO`	function	Clear all file descriptors in set.
`fpfdfillset`	function	Set all file descriptors in the set.
`FpFork`	function	Create child process.
`FPFStat`	function	Retrieve file information about a file descriptor.
`FpFtruncate`	function	Truncate file on certain size.
`FpFUtimens`	function
`FpGetcwd`	function	Retrieve the current working directory.
`FpGetegid`	function	Return effective group ID.
`FpGetEnv`	function	Return value of environment variable.
`fpgeterrno`	function	Retrieve extended error information.
`FpGeteuid`	function	Return effective user ID.
`FpGetgid`	function	Return real group ID.
`FpGetgroups`	function	Get the list of supplementary groups.
`FpGetpgrp`	function	Get process group ID.
`FpGetpid`	function	Return current process ID.
`FpGetppid`	function	Return parent process ID.
`fpGetPriority`	function	Return process priority.
`FpGetRLimit`	function	Get process resource limits.
`FpGetsid`	function	Get current session ID.
`FpGetuid`	function	Return current user ID.
`FpIOCtl`	function	General kernel IOCTL call.
`FpKill`	function	Send a signal to a process.
`FpLink`	function	Create a hard link to a file.
`FpLseek`	function	Set file pointer position.
`fpLstat`	function	Return information about the symbolic link itself (doesn't follow the link).
`FpMkdir`	function	Create a new directory.
`FpMkfifo`	function	Create FIFO (named pipe) in file system.
`Fpmmap`	function	Create memory map of a file.
`Fpmprotect`	function	Set memory protection.
`Fpmunmap`	function	Unmap previously mapped memory block.
`FpNanoSleep`	function	Suspend process for a short time.
`fpNice`	function	Set process priority.
`FpOpen`	function	Open file and return file descriptor.
`FpOpendir`	function	Open a directory for reading.
`FpPause`	function	Wait for a signal to arrive.
`FpPipe`	function	Create a set of pipe file handlers.
`FpPoll`	function	Poll a file descriptor for events.
`FppRead`	function	Positional read: read from file descriptor at a certain position.
`FppWrite`	function	Positional write: write to file descriptor at a certain position.
`FpRead`	function	Read data from file descriptor.
`FpReaddir`	function	Read entry from directory.
`fpReadLink`	function	Read destination of symbolic link.
`FpReadV`	function	Vector read: Read into multiple buffers.
`FpRename`	function	Rename file.
`FpRmdir`	function	Remove a directory.
`fpS_ISBLK`	function	Is file a block device.
`fpS_ISCHR`	function	Is file a character device.
`fpS_ISDIR`	function	Is file a directory.
`fpS_ISFIFO`	function	Is file a FIFO.
`fpS_ISLNK`	function	Is file a symbolic link.
`fpS_ISREG`	function	Is file a regular file.
`fpS_ISSOCK`	function	Is file a Unix socket.
`fpSelect`	function	Wait for events on file descriptors.
`fpseterrno`	procedure	Set extended error information.
`FpSetgid`	function	Set the current group ID.
`fpSetPriority`	function	Set process priority.
`FpSetRLimit`	function	Set process resource limits.
`FpSetsid`	function	Create a new session.
`fpsettimeofday`	function	Set kernel time.
`FpSetuid`	function	Set the current user ID.
`FPSigaction`	function	Install signal handler.
`FpSigAddSet`	function	Set a signal in a signal set.
`FpSigDelSet`	function	Remove a signal from a signal set.
`FpsigEmptySet`	function	Clear all signals from signal set.
`FpSigFillSet`	function	Set all signals in signal set.
`FpSigIsMember`	function	Check whether a signal appears in a signal set.
`FpSignal`	function	Install signal handler (deprecated).
`FpSigPending`	function	Return set of currently pending signals.
`FpSigProcMask`	function	Set list of blocked signals.
`FpSigSuspend`	function	Set signal mask and suspend process till signal is received.
`FpSigTimedWait`	function	Wait for signal, with timeout.
`FpSleep`	function	Suspend process for several seconds.
`FpStat`	function	Retrieve file information about a file descriptor.
`fpSymlink`	function	Create a symbolic link.
`fptime`	function	Return the current Unix time.
`FpTimes`	function	Return execution times for the current process.
`FpUmask`	function	Set file creation mask.
`FpUname`	function	Return system name.
`FpUnlink`	function	Unlink (i.e. remove) a file.
`FpUtime`	function	Set access and modification times of a file (touch).
`FpWait`	function	Wait for a child to exit.
`FpWaitPid`	function	Wait for a process to terminate.
`FpWrite`	function	Write data to file descriptor.
`FpWriteV`	function	Vector write: Write from multiple buffers to a file descriptor.
`FreeShellArgV`	procedure	Free the result of a CreateShellArgV function.
`wexitStatus`	function	Extract the exit status from the fpWaitPID result.
`wifexited`	function	Check whether the process exited normally.
`wifsignaled`	function	Check whether the process was exited by a signal.
`wstopsig`	function	Return the exit code from the process.
`wtermsig`	function	Return the signal that caused a process to exit.

Types

`Blkcnt_t`	type	Block count type.
`Blkcnt64_t`	type	64-bit block count.
`Blksize_t`	type	Block size type.
`cbool`	type	Boolean type.
`cchar`	type	Alias for .
`cdouble`	type	Double precision real format.
`cfloat`	type	Floating-point real format.
`cint`	type	C type: integer (natural size).
`cint16`	type	C type: 16 bits sized, signed integer.
`cint32`	type	C type: 32 bits sized, signed integer.
`cint64`	type	C type: 64 bits sized, signed integer.
`cint8`	type	C type: 8 bits sized, signed integer.
`clock_t`	type	Clock ticks type.
`clong`	type	C type: long signed integer (double sized).
`clonglong`	type	C type: 64-bit (double long) signed integer.
`coff_t`	type	Character offset type.
`cschar`	type	Signed character type.
`cshort`	type	C type: short signed integer (half sized).
`csigned`	type	Signed integer.
`csint`	type	Signed integer.
`csize_t`	type	Character size type.
`cslong`	type	Signed long.
`cslonglong`	type	Signed longlong type.
`csshort`	type	Short signed integer type.
`cuchar`	type	Alias for .
`cuint`	type	C type: unsigned integer (natural size).
`cuint16`	type	C type: 16 bits sized, unsigned integer.
`cuint32`	type	C type: 32 bits sized, unsigned integer.
`cuint64`	type	C type: 64 bits sized, unsigned integer.
`cuint8`	type	C type: 8 bits sized, unsigned integer.
`culong`	type	C type: long unsigned integer (double sized).
`culonglong`	type	C type: 64-bit (double long) unsigned integer.
`cunsigned`	type	Alias for .
`cushort`	type	C type: short unsigned integer (half sized).
`dev_t`	type	Device descriptor type.
`errno`	property	Error code of last operation.
`gid_t`	type	Group ID type.
`ino_t`	type	Inode type.
`kernel_gid_t`	type	Kernel group ID type.
`kernel_loff_t`	type	Long kernel offset type.
`kernel_mode_t`	type	Kernel mode type.
`kernel_off_t`	type	Kernel offset type.
`kernel_time64_t`	type
`kernel_uid_t`	type	Kernel user ID type.
`mode_t`	type	Inode mode type.
`nlink_t`	type	Number of links type.
`off_t`	type	Offset type.
`PBlkCnt`	type	pointer to type.
`PBlkSize`	type	Pointer to type.
`pcbool`	type	Pointer to boolean type.
`pcchar`	type	Alias for .
`pcdouble`	type	Pointer to cdouble type.
`pcfloat`	type	Pointer to cfloat type.
`pcint`	type	Pointer to type.
`pcint16`	type	Pointer to 16-bit signed integer type.
`pcint32`	type	Pointer to signed 32-bit integer type.
`pcint64`	type	Pointer to signed 64-bit integer type.
`pcint8`	type	Pointer to 8-bits signed integer type.
`pClock`	type	Pointer to type.
`pclong`	type	Pointer to type.
`pclonglong`	type	Pointer to longlong type.
`pcpu_set_t`	type
`pcschar`	type	Pointer to signed character type.
`pcshort`	type	Pointer to type.
`pcsigned`	type	Pointer to signed integer.
`pcsint`	type	Pointer to signed integer.
`pcsize_t`	type	Pointer to csize_t.
`pcslong`	type	Pointer to signed long.
`pcslonglong`	type	Pointer to Signed longlong type.
`pcsshort`	type	Pointer to short signed integer type.
`pcuchar`	type	Alias for .
`pcuint`	type	Pointer to type.
`pcuint16`	type	Pointer to 16-bit unsigned integer type.
`pcuint32`	type	Pointer to unsigned 32-bit integer type.
`pcuint64`	type	Pointer to unsigned 64-bit integer type.
`pcuint8`	type	Pointer to 8-bits unsigned integer type.
`pculong`	type	Pointer to type.
`pculonglong`	type	Unsigned longlong type.
`pcunsigned`	type	Alias for .
`pcushort`	type	Pointer to type.
`pDev`	type	Pointer to type.
`pDir`	type	Pointer to record.
`pDirent`	type	Pointer to record.
`pFDSet`	type	Pointer to type.
`pFilDes`	type	Pointer to type.
`pfpstate`	type	Pointer to record.
`pGid`	type	Pointer to type.
`pGrpArr`	type	Pointer to array.
`pid_t`	type	Process ID type.
`pIno`	type	Pointer to type.
`piovec`	type	pointer to a iovec record.
`pkernel_timespec`	type
`pMode`	type	Pointer to type.
`pnLink`	type	Pointer to type.
`pOff`	type	Pointer to type.
`pPid`	type	Pointer to type.
`ppollfd`	type	Pointer to tpollfd.
`PRLimit`	type	Pointer to TRLimit record.
`psigactionrec`	type	Pointer to record type.
`PSigContext`	type	Pointer to record type.
`psiginfo`	type	Pointer to record type.
`psigset`	type	Pointer to type.
`pSize`	type	Pointer to type.
`pSize_t`	type	Pointer to Size_t.
`pSocklen`	type	Pointer to type.
`psSize`	type	Pointer to type.
`PStat`	type	Pointer to type.
`pstatfs`	type	Pointer to statfs type.
`pstatx64`	type
`pstatx64_timestamp`	type
`pthread_cond_t`	type	Thread conditional variable type.
`pthread_mutex_t`	type	Thread mutex type.
`pthread_t`	type	POSIX thread type.
`pTime`	type	Pointer to type.
`ptime_t`	type	Pointer to type.
`ptimespec`	type	Pointer to type.
`ptimeval`	type	Pointer to type.
`ptimezone`	type	Pointer to record.
`PTms`	type	Pointer to type.
`Pucontext`	type	Pointer to TUContext type.
`pUid`	type	Pointer to type.
`pUtimBuf`	type	Pointer to type.
`PUtsName`	type	Pointer to type.
`rlim_t`	type	TRLimit record field type.
`sigactionhandler`	type	Callback prototype for a record.
`sigactionhandler_t`	procedure type	Standard signal action handler prototype.
`signalhandler`	type	Simple signal handler prototype.
`signalhandler_t`	procedure type	Standard signal handler prototype.
`sigrestorerhandler`	type	Alias for sigrestorerhandler_t type.
`sigrestorerhandler_t`	procedure type	Standard signal action restorer prototype.
`sigset`	type	Signal set type.
`sigset_t`	type	Signal set type.
`size_t`	type	Size specification type.
`socklen_t`	type	Socket address length type.
`ssize_t`	type	Small size type.
`TBlkCnt`	type	Alias for type.
`TBlkSize`	type	Alias for type.
`TClock`	type	Alias for type.
`tcpu_set_t`	type
`TDev`	type	Alias for type.
`TDir`	type	Alias for type.
`TDirent`	type	Alias for type.
`TFDSet`	type	File descriptor set for call.
`TFDSetEl`	type	Type alias for an element of the TFDSet.
`TFilDes`	type	Array of file descriptors as used in call.
`TGid`	type	Alias for type.
`TGrpArr`	type	Array of IDs.
`time_t`	type	Time span type.
`timespec`	type	Short time specification type.
`timeval`	type	Time specification type.
`TIno`	type	Alias for type.
`TIOCtlRequest`	type	Easy access alias for unixtype.TIOCtlRequest.
`tiovec`	type	Alias for the iovec record type.
`tkernel_timespec`	type
`tkernel_timespecs`	type
`TMode`	type	Alias for type.
`TnLink`	type	Alias for type.
`TOff`	type	Alias for type.
`TPid`	type	Alias for type.
`tpollfd`	type	Alias for pollfd type.
`tsigactionhandler`	type	Alias for sigactionhandler_t type.
`tsignalhandler`	type	Alias for signalhandler_t type.
`tsigrestorerhandler`	type	Alias for sigrestorerhandler_t type.
`tsigset`	type	Alias for type.
`TSize`	type	Alias for type.
`TSocklen`	type	Alias for type.
`TsSize`	type	Alias for type.
`TStat`	type	Alias for type.
`tstatfs`	type	Record describing a file system in the call.
`TTime`	type	Alias for type.
`Ttimespec`	type	Alias for type.
`TTimespecArr`	type
`TTimeVal`	type	Alias for type.
`TTimeZone`	type	Alias for record.
`TTms`	type	Alias for record type.
`TUid`	type	Alias for type.
`TUtimBuf`	type	Alias for type.
`TUtsName`	type	Alias for type.
`uid_t`	type	User ID type.

Constants

`ARG_MAX`	constant	Maximum number of arguments to a program.
`AT_EMPTY_PATH`	constant	Create a link to the old directory if a path is empty.
`AT_FDCWD`	constant	Flag for various *at calls to indicate current working directory.
`AT_NO_AUTOMOUNT`	constant	Do not auto mount filesystem if the base dir is a mount point.
`AT_RECURSIVE`	constant	Recurse subdirectories when applying changes.
`AT_REMOVEDIR`	constant	Unlink at: specify rmdir behaviour.
`AT_STATX_DONT_SYNC`	constant	Do not synchronize the attributes with the server (if any).
`AT_STATX_FORCE_SYNC`	constant	Force the attributes to be synchronized with the server (if any).
`AT_STATX_SYNC_AS_STAT`	constant	Behave as fpStat.
`AT_STATX_SYNC_TYPE`	constant	Type of synchronisation required from statx.
`AT_SYMLINK_FOLLOW`	constant	Dereference symbolic links.
`AT_SYMLINK_NOFOLLOW`	constant	Do not dereference symbolic links.
`BITSINWORD`	constant	Number of bits in a word.
`BUS_ADRALN`	constant
`BUS_ADRERR`	constant
`BUS_OBJERR`	constant
`CLD_CONTINUED`	constant
`CLD_DUMPED`	constant
`CLD_EXITED`	constant
`CLD_KILLED`	constant
`CLD_STOPPED`	constant
`CLD_TRAPPED`	constant
`clone_flags_fork`	constant	Request fork behaviour for clone call.
`ESysE2BIG`	constant	System error: Argument list too long.
`ESysEACCES`	constant	System error: Permission denied.
`ESysEADDRINUSE`	constant	System error: Address already in use.
`ESysEADDRNOTAVAIL`	constant	System error: Cannot assign requested address.
`ESysEADV`	constant	System error: Advertise error.
`ESysEAFNOSUPPORT`	constant	System error: Address family not supported by protocol.
`ESysEAGAIN`	constant	System error: Try again.
`ESysEALREADY`	constant	System error: Operation already in progress.
`ESysEBADE`	constant	System error: Invalid exchange.
`ESysEBADF`	constant	System error: Bad file number.
`ESysEBADFD`	constant	System error: File descriptor in bad state.
`ESysEBADMSG`	constant	System error: Not a data message.
`ESysEBADR`	constant	System error: Invalid request descriptor.
`ESysEBADRQC`	constant	System error: Invalid request code.
`ESysEBADSLT`	constant	System error: Invalid slot.
`ESysEBFONT`	constant	System error: Bad font file format.
`ESysEBUSY`	constant	System error: Device or resource busy.
`ESysECANCELED`	constant	Operation canceled.
`ESysECHILD`	constant	System error: No child processes.
`ESysECHRNG`	constant	System error: Channel number out of range.
`ESysECOMM`	constant	System error: Communication error on send.
`ESysECONNABORTED`	constant	System error: Software caused connection abort.
`ESysECONNREFUSED`	constant	System error: Connection refused.
`ESysECONNRESET`	constant	System error: Connection reset by peer.
`ESysEDEADLK`	constant	System error: Resource deadlock would occur.
`ESysEDEADLOCK`	constant	System error: File locking deadlock error.
`ESysEDESTADDRREQ`	constant	System error: Destination address required.
`ESysEDOM`	constant	System error: Math argument out of domain of func.
`ESysEDOTDOT`	constant	System error: RFS specific error.
`ESysEDQUOT`	constant	System error: Quota exceeded.
`ESysEEXIST`	constant	System error: File exists.
`ESysEFAULT`	constant	System error: Bad address.
`ESysEFBIG`	constant	System error: File too large.
`ESysEHOSTDOWN`	constant	System error: Host is down.
`ESysEHOSTUNREACH`	constant	System error: No route to host.
`ESysEIDRM`	constant	System error: Identifier removed.
`ESysEILSEQ`	constant	System error: Illegal byte sequence.
`ESysEINPROGRESS`	constant	System error: Operation now in progress.
`ESysEINTR`	constant	System error: Interrupted system call.
`ESysEINVAL`	constant	System error: Invalid argument.
`ESysEIO`	constant	System error: I/O error.
`ESysEISCONN`	constant	System error: Transport endpoint is already connected.
`ESysEISDIR`	constant	System error: Is a directory.
`ESysEISNAM`	constant	System error: Is a named type file.
`ESysEKEYEXPIRED`	constant	Key has expired (Linux kernel module).
`ESysEKEYREJECTED`	constant	Key was rejected by service (Linux kernel module).
`ESysEKEYREVOKED`	constant	Key has been revoked (Linux kernel module).
`ESysEL2HLT`	constant	System error: Level 2 halted.
`ESysEL2NSYNC`	constant	System error: Level 2 not synchronized.
`ESysEL3HLT`	constant	System error: Level 3 halted.
`ESysEL3RST`	constant	System error: Level 3 reset.
`ESysELIBACC`	constant	System error: Can not access a needed shared library.
`ESysELIBBAD`	constant	System error: Accessing a corrupted shared library.
`ESysELIBEXEC`	constant	System error: Cannot exec a shared library directly.
`ESysELIBMAX`	constant	System error: Attempting to link in too many shared libraries.
`ESysELIBSCN`	constant	System error: .lib section in a.out corrupted.
`ESysELNRNG`	constant	System error: Link number out of range.
`ESysELOOP`	constant	System error: Too many symbolic links encountered.
`ESysEMEDIUMTYPE`	constant	Wrong medium type.
`ESysEMFILE`	constant	System error: Too many open files.
`ESysEMLINK`	constant	System error: Too many links.
`ESysEMSGSIZE`	constant	System error: Message too long.
`ESysEMULTIHOP`	constant	System error: Multihop attempted.
`ESysENAMETOOLONG`	constant	System error: File name too long.
`ESysENAVAIL`	constant	System error: No XENIX semaphores available.
`ESysENETDOWN`	constant	System error: Network is down.
`ESysENETRESET`	constant	System error: Network dropped connection because of reset.
`ESysENETUNREACH`	constant	System error: Network is unreachable.
`ESysENFILE`	constant	System error: File table overflow.
`ESysENOANO`	constant	System error: No anode.
`ESysENOBUFS`	constant	System error: No buffer space available.
`ESysENOCSI`	constant	System error: No CSI structure available.
`ESysENODATA`	constant	System error: No data available.
`ESysENODEV`	constant	System error: No such device.
`ESysENOENT`	constant	System error: No such file or directory.
`ESysENOEXEC`	constant	System error: Exec format error.
`ESysENOKEY`	constant	Required key not available (Linux kernel module).
`ESysENOLCK`	constant	System error: No record locks available.
`ESysENOLINK`	constant	System error: Link has been severed.
`ESysENOMEDIUM`	constant	No medium present.
`ESysENOMEM`	constant	System error: Out of memory.
`ESysENOMSG`	constant	System error: No message of desired type.
`ESysENONET`	constant	System error: Machine is not on the network.
`ESysENOPKG`	constant	System error: Package not installed.
`ESysENOPROTOOPT`	constant	System error: Protocol not available.
`ESysENOSPC`	constant	System error: No space left on device.
`ESysENOSR`	constant	System error: Out of streams resources.
`ESysENOSTR`	constant	System error: Device not a stream.
`ESysENOSYS`	constant	System error: Function not implemented.
`ESysENOTBLK`	constant	System error: Block device required.
`ESysENOTCONN`	constant	System error: Transport endpoint is not connected.
`ESysENOTDIR`	constant	System error: Not a directory.
`ESysENOTEMPTY`	constant	System error: Directory not empty.
`ESysENOTNAM`	constant	System error: Not a XENIX named type file.
`ESysENOTRECOVERABLE`	constant	State not recoverable (mutexes).
`ESysENOTSOCK`	constant	System error: Socket operation on non-socket.
`ESysENOTTY`	constant	System error: Not a typewriter.
`ESysENOTUNIQ`	constant	System error: Name not unique on network.
`ESysENXIO`	constant	System error: No such device or address.
`ESysEOPNOTSUPP`	constant	System error: Operation not supported on transport endpoint.
`ESysEOVERFLOW`	constant	System error: Value too large for defined data type.
`ESysEOWNERDEAD`	constant	Owner died (mutexes).
`ESysEPERM`	constant	System error: Operation not permitted.
`ESysEPFNOSUPPORT`	constant	System error: Protocol family not supported.
`ESysEPIPE`	constant	System error: Broken pipe.
`ESysEPROTO`	constant	System error: Protocol error.
`ESysEPROTONOSUPPORT`	constant	System error: Protocol not supported.
`ESysEPROTOTYPE`	constant	System error: Protocol wrong type for socket.
`ESysERANGE`	constant	System error: Math result not representable.
`ESysEREMCHG`	constant	System error: Remote address changed.
`ESysEREMOTE`	constant	System error: Object is remote.
`ESysEREMOTEIO`	constant	System error: Remote I/O error.
`ESysERESTART`	constant	System error: Interrupted system call should be restarted.
`ESysERFKILL`	constant	Operation not possible due to RF-Kill (wireless).
`ESysEROFS`	constant	System error: Read-only file system.
`ESysESHUTDOWN`	constant	System error: Cannot send after transport endpoint shutdown.
`ESysESOCKTNOSUPPORT`	constant	System error: Socket type not supported.
`ESysESPIPE`	constant	System error: Illegal seek.
`ESysESRCH`	constant	System error: No such process.
`ESysESRMNT`	constant	System error: Srmount error.
`ESysESTALE`	constant	System error: Stale NFS file handle.
`ESysESTRPIPE`	constant	System error: Streams pipe error.
`ESysETIME`	constant	System error: Timer expired.
`ESysETIMEDOUT`	constant	System error: Connection timed out.
`ESysETOOMANYREFS`	constant	System error: Too many references: cannot splice.
`ESysETXTBSY`	constant	System error: Text (code segment) file busy.
`ESysEUCLEAN`	constant	System error: Structure needs cleaning.
`ESysEUNATCH`	constant	System error: Protocol driver not attached.
`ESysEUSERS`	constant	System error: Too many users.
`ESysEWOULDBLOCK`	constant	System error: Operation would block.
`ESysEXDEV`	constant	System error: Cross-device link.
`ESysEXFULL`	constant	System error: Exchange full.
`F_ADD_SEALS`	constant
`F_CANCELLK`	constant
`F_DUPFD_CLOEXEC`	constant
`F_GET_SEALS`	constant
`F_GetFd`	constant	command: Get close-on-exec flag.
`F_GetFl`	constant	command: Get file descriptor flags.
`F_GETLEASE`	constant
`F_GetLk`	constant	command: Get lock.
`F_GetOwn`	constant	command: get owner of file descriptor events.
`F_GETPIPE_SZ`	constant
`F_NOTIFY`	constant
`F_OK`	constant	call test: file exists.
`F_SetFd`	constant	command: Set close-on-exec flag.
`F_SetFl`	constant	command: Set file descriptor flags.
`F_SETLEASE`	constant
`F_SetLk`	constant	command: Set lock.
`F_SetLkW`	constant	command: Test lock.
`F_SetOwn`	constant	command: Set owner of file descriptor events.
`F_SETPIPE_SZ`	constant
`FD_MAXFDSET`	constant	Maximum elements in a array.
`FPE_FLTDIV`	constant	Value signalling floating point divide by zero in case of SIGFPE signal.
`FPE_FLTINV`	constant	Value signalling floating point invalid operation in case of SIGFPE signal.
`FPE_FLTOVF`	constant	Value signalling floating point overflow in case of SIGFPE signal.
`FPE_FLTRES`	constant	Value signalling floating point inexact result in case of SIGFPE signal.
`FPE_FLTSUB`	constant	Value signalling floating point subscript out of range in case of SIGFPE signal.
`FPE_FLTUND`	constant	Value signalling floating point underflow in case of SIGFPE signal.
`FPE_INTDIV`	constant	Value signalling integer divide in case of SIGFPE signal.
`FPE_INTOVF`	constant	Value signalling integer overflow in case of SIGFPE signal.
`ILL_BADSTK`	constant
`ILL_COPROC`	constant
`ILL_ILLADR`	constant
`ILL_ILLOPC`	constant
`ILL_ILLOPN`	constant
`ILL_ILLTRP`	constant
`ILL_PRVOPC`	constant
`ILL_PRVREG`	constant
`ln2bitmask`	constant	Last bit in word.
`ln2bitsinword`	constant	Power of 2 number of bits in word.
`MAP_ANON`	constant	Anonymous memory mapping (data private to application).
`MAP_ANONYMOUS`	constant	map type: Don't use a file.
`MAP_DENYWRITE`	constant	option: Ignored.
`MAP_EXECUTABLE`	constant	option: Ignored.
`MAP_FAILED`	constant	Memory mapping failed error code.
`MAP_FIXED`	constant	map type: Interpret addr exactly.
`MAP_GROWSDOWN`	constant	option: Memory grows downward (like a stack).
`MAP_LOCKED`	constant	option: lock the pages in memory.
`MAP_NORESERVE`	constant	option: Do not reserve swap pages for this memory.
`MAP_PRIVATE`	constant	map type: Changes are private.
`MAP_SHARED`	constant	map type: Share changes.
`MAP_TYPE`	constant	map type: Bitmask for type of mapping.
`NAME_MAX`	constant	Maximum filename length.
`O_APPEND`	constant	file open mode: Append to file.
`O_CREAT`	constant	file open mode: Create if file does not yet exist.
`O_DIRECT`	constant	file open mode: Minimize caching effects.
`O_DIRECTORY`	constant	file open mode: File must be directory.
`O_EXCL`	constant	file open mode: Open exclusively.
`O_LARGEFILE`	constant	file open mode: Open for 64-bit I/O.
`O_NDELAY`	constant	file open mode: Alias for .
`O_NOCTTY`	constant	file open mode: No TTY control.
`O_NOFOLLOW`	constant	file open mode: Fail if file is symbolic link.
`O_NONBLOCK`	constant	file open mode: Open in non-blocking mode.
`O_RDONLY`	constant	file open mode: Read only.
`O_RDWR`	constant	file open mode: Read/Write.
`O_SYNC`	constant	file open mode: Write to disc at once.
`O_TRUNC`	constant	file open mode: Truncate file to length 0.
`O_WRONLY`	constant	file open mode: Write only.
`PATH_MAX`	constant	Maximum pathname length.
`POLL_ERR`	constant
`POLL_HUP`	constant
`POLL_IN`	constant
`POLL_MSG`	constant
`POLL_OUT`	constant
`POLL_PRI`	constant
`POLLERR`	constant	Error condition on output file descriptor.
`POLLHUP`	constant	Hang up.
`POLLIN`	constant	Data is available for reading.
`POLLNVAL`	constant	Invalid request, file descriptor not open.
`POLLOUT`	constant	Writing data will not block the write call.
`POLLPRI`	constant	Urgent data is available for reading.
`POLLRDBAND`	constant	Priority data ready for reading.
`POLLRDNORM`	constant	Same as POLLIN.
`POLLWRBAND`	constant	Priority data my be written.
`POLLWRNORM`	constant	Equivalent to POLLOUT.
`PRIO_PGRP`	constant	Easy access alias for unixtype.PRIO_PGRP.
`PRIO_PROCESS`	constant	Easy access alias for unixtype.PRIO_PROCESS.
`PRIO_USER`	constant	Easy access alias for unixtype.PRIO_USER.
`PROT_EXEC`	constant	memory access: page can be executed.
`PROT_NONE`	constant	memory access: page can not be accessed.
`PROT_READ`	constant	memory access: page can be read.
`PROT_WRITE`	constant	memory access: page can be written.
`R_OK`	constant	call test: read allowed.
`RLIMIT_AS`	constant	RLimit request address space limit.
`RLIMIT_CORE`	constant	RLimit request max core file size.
`RLIMIT_CPU`	constant	RLimit request CPU time in ms.
`RLIMIT_DATA`	constant	RLimit request max data size.
`RLIMIT_FSIZE`	constant	Rlimit request maximum file size.
`RLIMIT_LOCKS`	constant	RLimit request maximum file locks held.
`RLIMIT_MEMLOCK`	constant	RLimit request max locked-in-memory address space.
`RLIMIT_NOFILE`	constant	RLimit request max number of open files.
`RLIMIT_NPROC`	constant	RLimit request max number of processes.
`RLIMIT_RSS`	constant	RLimit request max resident set size.
`RLIMIT_STACK`	constant	RLimit request max stack size.
`S_IFBLK`	constant	File ( record) mode: Block device.
`S_IFCHR`	constant	File ( record) mode: Character device.
`S_IFDIR`	constant	File ( record) mode: Directory.
`S_IFIFO`	constant	File ( record) mode: FIFO.
`S_IFLNK`	constant	File ( record) mode: Link.
`S_IFMT`	constant	File ( record) mode: File type bit mask.
`S_IFREG`	constant	File ( record) mode: Regular file.
`S_IFSOCK`	constant	File ( record) mode: Socket.
`S_IRGRP`	constant	Mode flag: Read by group.
`S_IROTH`	constant	Mode flag: Read by others.
`S_IRUSR`	constant	Mode flag: Read by owner.
`S_IRWXG`	constant	Mode flag: Read, write, execute by groups.
`S_IRWXO`	constant	Mode flag: Read, write, execute by others.
`S_IRWXU`	constant	Mode flag: Read, write, execute by user.
`S_ISGID`	constant	Mode flag: Set Group ID on execution.
`S_ISUID`	constant	Mode flag: Set user ID on execution.
`S_ISVTX`	constant	Mode flag: Set sticky bit.
`S_IWGRP`	constant	Mode flag: Write by group.
`S_IWOTH`	constant	Mode flag: Write by others.
`S_IWUSR`	constant	Mode flag: Write by owner.
`S_IXGRP`	constant	Mode flag: Execute by group.
`S_IXOTH`	constant	Mode flag: Execute by others.
`S_IXUSR`	constant	Mode flag: Execute by owner.
`SA_INTERRUPT`	constant	Sigaction options: ?
`SA_NOCLDSTOP`	constant	Sigaction options: Do not receive notification when child processes stop.
`SA_NOCLDWAIT`	constant	Sigaction options: ?
`SA_NODEFER`	constant	Sigaction options: Do not mask signal in its own signal handler.
`SA_NOMASK`	constant	Sigaction options: Do not prevent the signal from being received when it is handled.
`SA_ONESHOT`	constant	Sigaction options: Restore the signal action to the default state.
`SA_ONSTACK`	constant	Call the signal handler on an alternate signal stack.
`SA_RESETHAND`	constant	Sigaction options: Restore signal action to default state when signal handler exits.
`SA_RESTART`	constant	Sigaction options: Provide behaviour compatible with BSD signal semantics.
`SA_RESTORER`	constant	Signal restorer handler.
`SA_SIGINFO`	constant	Sigaction options: The signal handler takes 3 arguments, not one.
`SEEK_CUR`	constant	option: Set position relative to current position.
`SEEK_END`	constant	option: Set position relative to end of file.
`SEEK_SET`	constant	option: Set absolute position.
`SEGV_ACCERR`	constant
`SEGV_MAPERR`	constant
`SI_ASYNCIO`	constant
`SI_KERNEL`	constant
`SI_MESGQ`	constant
`SI_PAD_SIZE`	constant	Signal information pad size.
`SI_QUEUE`	constant
`SI_SIGIO`	constant
`SI_TIMER`	constant
`SI_TKILL`	constant
`SI_USER`	constant
`SIG_BLOCK`	constant	Sigprocmask flags: Add signals to the set of blocked signals.
`SIG_DFL`	constant	Signal handler: Default signal handler.
`SIG_ERR`	constant	Signal handler: error.
`SIG_IGN`	constant	Signal handler: Ignore signal.
`SIG_MAXSIG`	constant	Maximum system signal number.
`SIG_SETMASK`	constant	Sigprocmask flags: Set of blocked signals is given.
`SIG_UNBLOCK`	constant	Sigprocmask flags: Remove signals from the set set of blocked signals.
`SIGABRT`	constant	Signal: ABRT (Abort).
`SIGALRM`	constant	Signal: ALRM (Alarm clock).
`SIGBUS`	constant	Signal: BUS (bus error).
`SIGCHLD`	constant	Signal: CHLD (child status changed).
`SIGCONT`	constant	Signal: CONT (Continue).
`SIGFPE`	constant	Signal: FPE (Floating point error).
`SIGHUP`	constant	Signal: HUP (Hangup).
`SIGILL`	constant	Signal: ILL (Illegal instruction).
`SIGINT`	constant	Signal: INT (Interrupt).
`SIGIO`	constant	Signal: IO (I/O operation possible).
`SIGIOT`	constant	Signal: IOT (IOT trap).
`SIGKILL`	constant	Signal: KILL (unblockable).
`SIGPIPE`	constant	Signal: PIPE (Broken pipe.
`SIGPOLL`	constant	Signal: POLL (Pollable event).
`SIGPROF`	constant	Signal: PROF (Profiling alarm).
`SIGPWR`	constant	Signal: PWR (power failure restart).
`SIGQUIT`	constant	Signal: QUIT.
`SIGSEGV`	constant	Signal: SEGV (Segmentation violation).
`SIGSTKFLT`	constant	Signal: STKFLT (Stack Fault).
`SIGSTOP`	constant	Signal: STOP (Stop, unblockable).
`SIGTERM`	constant	Signal: TERM (Terminate).
`SIGTRAP`	constant	Signal: TRAP (Trace trap).
`SIGTSTP`	constant	Signal: TSTP (keyboard stop).
`SIGTTIN`	constant	Signal: TTIN (Terminal input, background).
`SIGTTOU`	constant	Signal: TTOU (Terminal output, background).
`SIGUNUSED`	constant	Signal: Unused.
`SIGURG`	constant	Signal: URG (Socket urgent condition).
`SIGUSR1`	constant	Signal: USR1 (User-defined signal 1).
`SIGUSR2`	constant	Signal: USR2 (User-defined signal 2).
`SIGVTALRM`	constant	Signal: VTALRM (Virtual alarm clock).
`SIGWINCH`	constant	Signal: WINCH (Window/Terminal size change).
`SIGXCPU`	constant	Signal: XCPU (CPU limit exceeded).
`SIGXFSZ`	constant	Signal: XFSZ (File size limit exceeded).
`SYS_NMLN`	constant	Max system name length.
`TRAP_BRKPT`	constant
`TRAP_TRACE`	constant
`UTSNAME_DOMAIN_LENGTH`	constant	Max length of domain name.
`UTSNAME_LENGTH`	constant	Max length of system name, release, version, machine.
`UTSNAME_NODENAME_LENGTH`	constant	Max length of node name.
`W_OK`	constant	call test: write allowed.
`WNOHANG`	constant	option: Do not wait for processes to terminate.
`wordsinfdset`	constant	Number of words in a array.
`wordsinsigset`	constant	Number of words in a signal set.
`WUNTRACED`	constant	option: Also report children which were stopped but not yet reported.
`X_OK`	constant	call test: execute allowed.

Uses

unixtype

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.