Process (gb)
This class is used for managing processes launched by the
EXEC
or
SHELL instructions.
As this class is a stream, you can use input/output
instructions to read the process standard output or write to its standard input.
To read the process error output, you must use the
Error event.
Этот класс наследуемый
Stream.
Этот класс несоздаваемый.
Константы
Crashed
|
Constant used by the State property to indicate a crashed process.
|
Running
|
Constant used by the State property to indicate a running process.
|
Signaled
|
A synonymous for the Crashed constant.
|
Stopped
|
Constant used by the State property to indicate a stopped process.
|
Статические свойства
LastState
|
Returns the state of the last terminated process.
|
LastValue
|
Returns the return value of the last terminated process.
|
Свойства
Handle
|
Returns the process identifier (a.k.a "pid") of the process object.
|
Id
|
A synonymous for Handle.
|
Ignore
|
Return or set if the process is ignored.
|
State
|
Returns the current state of the process object:
|
Value
|
Returns the value returned by the process when it exited, or the
number of the emitted signal if it crashed.
|
Inherited properties
Blocking
|
Returns or sets if the stream is blocking.
|
ByteOrder
|
Returns or sets the byte order used to read or write binary data to the stream.
|
EndOfFile
|
This property signals whether the last use of LINE INPUT reached the end of file,
instead of reading a full line with an end-of-line character.
|
EndOfLine
|
Return or set the newline separator used by this stream.
|
Eof
|
Return if a stream reached its end.
|
IsTerm
|
Return if a stream is associated with a terminal.
|
Lines
|
Returns a virtual object that allows you to enumerate a stream line by line.
|
NoShare
|
|
NullTerminatedString
|
Return or set if strings are null-terminated when they are serialized.
|
Tag
|
Returns or sets the tag associated with the stream.
|
Term
|
Return a virtual object that allows to manage the terminal associated with the stream.
|
Методы
CloseInput
|
Closes the process input stream.
|
Kill
|
Kills the process immediately.
|
Signal
|
Sends a user signal to the process.
|
Wait
|
Waits for the end of the process, like the WAIT option in SHELL and EXEC instructions.
|
Inherited methods
Begin
|
Start to buffer data written to the stream, so that everything will be sent when the Send method is called.
|
Close
|
Closes the stream.
|
Drop
|
Drop the data that has been buffered since the last call to the Begin method.
|
ReadLine
|
Read a line of text from the stream, like the LINE INPUT instruction.
|
Send
|
Send all the data, in one shot, since the last call to Begin.
|
Watch
|
Start or stop watching the stream file descriptor for reading or writing, after it has been opened.
|
События
Error
|
Raised when there is data to be read on the standard error output of the process.
|
Kill
|
Raised when the process has terminated, normally or abnormally.
|
Read
|
Raised when there is data to be read from the standard output of the process.
|
If you need to send a
CTRL+D
to a running process, as if you have run it in a shell, just close the Process stream.
This behaviour is deprecated since Gambas 3.9. Now closing a process stream makes it unusable, and you must use the new
CloseInput method instead.