Unix unit

Extended Unix functionality.

Classes and records

`TTZInfo`	record
`TTZInfoEx`	record

Procedures and functions

`AssignPipe`	function	Create a set of pipe file handlers.
`AssignStream`	function	Assign stream for in and output to a program.
`EpochToLocal`	procedure
`EpochToUniversal`	procedure
`FpExecL`	function	Execute process (using argument list, environment).
`FpExecLE`	function	Execute process (using argument list, environment).
`FpExecLP`	function	Execute process (using argument list, environment; search path).
`FpExecLPE`	function	Execute a program in the path, and pass it an environment.
`FpExecV`	function	Execute process.
`FpExecVP`	function	Execute process, search path.
`FpExecVPE`	function	Execute process, search path using environment.
`fpFlock`	function	Lock a file (advisory lock).
`fpfStatFS`	function	Retrieve file system information.
`fpfsync`	function	Synchronize file's kernel data with disk.
`fpgettimeofday`	function	Return kernel time of day in GMT.
`fpStatFS`	function	Retrieve file system information.
`fpSystem`	function	Execute and feed command to system shell.
`FSearch`	function	Search for file in search path.
`GetDomainName`	function	Return current domain name.
`GetHostName`	function	Return host name.
`GetLocalTimezone`	function	Return local timezone information.
`GetTimezoneFile`	function	Return name of timezone information file.
`Gettzdaylight`	function
`GetTZInfo`	function
`GetTZInfoEx`	function
`Gettzname`	function
`GetTzseconds`	function
`GregorianToJulian`	function
`JulianToGregorian`	procedure
`LocalToEpoch`	function
`PClose`	function	Close file opened with .
`POpen`	function	Pipe file to standard input/output of program.
`ReadTimezoneFile`	function	Read the timezone file and initialize time routines.
`RefreshTZInfo`	procedure
`ReReadLocalTime`	procedure	Re-Read the local time files.
`SeekDir`	procedure	Seek to position in directory.
`SetTZInfo`	procedure
`TellDir`	function	Return current location in a directory.
`UniversalToEpoch`	function
`W_EXITCODE`	function	Construct an exit status based on an return code and signal.
`W_STOPCODE`	function	Construct an exit status based on a signal.
`WaitProcess`	function	Wait for process to terminate.
`WIFSTOPPED`	function	Check whether the process is currently stopped.

Types

`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.
`gid_t`	type	Group ID type.
`ino_t`	type	Inode type.
`mode_t`	type	Inode mode type.
`nlink_t`	type	Number of links type.
`off_t`	type	Offset 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.
`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 character size type pcsize_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.
`pGid`	type	Pointer to type.
`pid_t`	type	Process ID type.
`pIno`	type	Pointer to type.
`pMode`	type	Pointer to type.
`pnLink`	type	Pointer to type.
`pOff`	type	Pointer to type.
`pPid`	type	Pointer to type.
`pSize`	type	Pointer to type.
`pSize_t`	type	Pointer to type Size_t.
`pSocklen`	type	Pointer to type.
`psSize`	type	Pointer to type.
`pstatfs`	type	Pointer to statfs 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.
`pUid`	type	Pointer to type.
`size_t`	type	Size specification type.
`socklen_t`	type	Socket address length type.
`ssize_t`	type	Small size type.
`TClock`	type	Alias for type.
`TDev`	type	Alias for type.
`TFSearchOption`	enumeration	Describes the search strategy used by .
`TGid`	type	Alias for type.
`time_t`	type	Time span type.
`timespec`	type	Short time specification type.
`timeval`	type	Time specification type.
`TIno`	type	Alias for type.
`TIOCtlRequest`	type	Alias for the TIOCtlRequest type in unixtypes.
`TMode`	type	Alias for type.
`TnLink`	type	Alias for type.
`TOff`	type	Alias for type.
`TPid`	type	Alias for type.
`TSize`	type	Alias for type.
`TSocklen`	type	Alias for type.
`TsSize`	type	Alias for type.
`tstatfs`	type	Record describing a file system in the call.
`TTime`	type	Alias for type.
`Ttimespec`	type	Alias for type.
`TTimeVal`	type	Alias for type.
`TUid`	type	Alias for type.
`tzdaylight`	property	Indicates whether daylight savings time is active.
`TZInfo`	property
`TZInfoEx`	property
`tzname`	property	Timezone name.
`Tzseconds`	property	Timezone offset in seconds.
`uid_t`	type	User ID type.

Constants

`ARG_MAX`	constant	Maximum number of arguments to a program.
`fs_ext`	constant	File system type ( ): (ext) Extended.
`fs_ext2`	constant	File system type ( ): (ext2) Second extended.
`fs_iso`	constant	File system type ( ): ISO 9660.
`fs_minix`	constant	File system type ( ): Minix.
`fs_minix_30`	constant	File system type ( ): Minix 3.0.
`fs_minux_V2`	constant	File system type ( ): Minix V2.
`fs_msdos`	constant	File system type ( ): MSDOS (FAT).
`fs_nfs`	constant	File system type ( ): NFS.
`fs_old_ext2`	constant	File system type ( ): (ext2) Old second extended.
`fs_proc`	constant	File system type ( ): PROC fs.
`fs_xia`	constant	File system type ( ): XIA.
`IOCtl_TCGETS`	constant	IOCTL call number: get Terminal Control settings.
`LOCK_EX`	constant	Exclusive lock.
`LOCK_NB`	constant	Non-blocking operation.
`LOCK_SH`	constant	Shared lock.
`LOCK_UN`	constant	unlock.
`MAP_FAILED`	constant	Error return value for mmap: mmap operation failed.
`MAP_FIXED`	constant	map type: Interpret addr exactly.
`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.
`Open_Accmode`	constant	Bitmask to determine access mode in open flags.
`Open_Append`	constant	File open mode: Append to file.
`Open_Creat`	constant	File open mode: Create if file does not yet exist.
`Open_Direct`	constant	File open mode: Minimize caching effects.
`Open_Directory`	constant	File open mode: File must be directory.
`Open_Excl`	constant	File open mode: Open exclusively.
`Open_LargeFile`	constant	File open mode: Open for 64-bit I/O.
`Open_NDelay`	constant	File open mode: Alias for .
`Open_NoCtty`	constant	File open mode: No TTY control.
`Open_NoFollow`	constant	File open mode: Fail if file is symbolic link.
`Open_NonBlock`	constant	File open mode: Open in non-blocking mode.
`Open_RdOnly`	constant	File open mode: Read only.
`Open_RdWr`	constant	File open mode: Read/Write.
`Open_Sync`	constant	File open mode: Write to disc at once.
`Open_Trunc`	constant	File open mode: Truncate file to length 0.
`Open_WrOnly`	constant	File open mode: Write only.
`P_IN`	constant	Input file descriptor of pipe pair.
`P_OUT`	constant	Output file descriptor of pipe pair.
`PATH_MAX`	constant	Maximum pathname length.
`PRIO_PGRP`	constant	option: Get process group priority.
`PRIO_PROCESS`	constant	option: Get process priority.
`PRIO_USER`	constant	option: Get user priority.
`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.
`SIG_MAXSIG`	constant	Maximum system signal number.
`STAT_IFBLK`	constant	File ( record) mode: Block device.
`STAT_IFCHR`	constant	File ( record) mode: Character device.
`STAT_IFDIR`	constant	File ( record) mode: Directory.
`STAT_IFIFO`	constant	File ( record) mode: FIFO.
`STAT_IFLNK`	constant	File ( record) mode: Link.
`STAT_IFMT`	constant	File ( record) mode: File type bit mask.
`STAT_IFREG`	constant	File ( record) mode: Regular file.
`STAT_IFSOCK`	constant	File ( record) mode: Socket.
`STAT_IRGRP`	constant	File ( record) mode: Group read permission.
`STAT_IROTH`	constant	File ( record) mode: Other read permission.
`STAT_IRUSR`	constant	File ( record) mode: Owner read permission.
`STAT_IRWXG`	constant	File ( record) mode: Group permission bits mask.
`STAT_IRWXO`	constant	File ( record) mode: Other permission bits mask.
`STAT_IRWXU`	constant	File ( record) mode: Owner permission bits mask.
`STAT_ISGID`	constant	File ( record) mode: GID bit set.
`STAT_ISUID`	constant	File ( record) mode: UID bit set.
`STAT_ISVTX`	constant	File ( record) mode: Sticky bit set.
`STAT_IWGRP`	constant	File ( record) mode: Group write permission.
`STAT_IWOTH`	constant	File ( record) mode: Other write permission.
`STAT_IWUSR`	constant	File ( record) mode: Owner write permission.
`STAT_IXGRP`	constant	File ( record) mode: Others execute permission.
`STAT_IXOTH`	constant	File ( record) mode: Others execute permission.
`STAT_IXUSR`	constant	File ( record) mode: Others execute permission.
`SYS_NMLN`	constant	Max system name length.
`Wait_Any`	constant	: Wait on any process.
`Wait_Clone`	constant	: Wait on clone processes only.
`Wait_MyPGRP`	constant	: Wait processes from current process group.
`Wait_NoHang`	constant	: Do not wait.
`Wait_UnTraced`	constant	: Also report stopped but untraced processes.

Uses

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