Sandman at 11:41, 25 December 2007

Sandman — Tue, 25 Dec 2007 11:41:41 GMT

←Older revision		Revision as of 11:41, 25 December 2007
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	</pre>		</pre>
	Used in example: [[signal]]()		Used in example: [[signal]]()
		+
		+	{{Funcbox
		+	\| category = Processinteraction
		+	}}

Sandman: New page: Category:functions Category:processinteraction ==Definition== '''INT''' get_id ( <'''INT''' processTypeID> ) Returns a ProcessID of a process of the specified [[ProcessTy...

Sandman — Tue, 25 Dec 2007 11:38:00 GMT

New page: Category:functions Category:processinteraction ==Definition== '''INT''' get_id ( <'''INT''' processTypeID> ) Returns a ProcessID of a process of the specified [[ProcessTy...

New page

[[Category:functions]]
[[Category:processinteraction]]

==Definition==
'''INT''' get_id ( <'''INT''' processTypeID> )

Returns a [[ProcessID]] of a [[process]] of the specified [[ProcessType]]. On the next call of get_id() in the same process and in the same frame, the next process will be returned of the given type. After a [[frame]] statement, get_id() is reset and will return the first process of the given processType. When there are no more processes of a given type, which have not been returned, it will return 0.

get_id(0) returns processes of any type.

== Parameters ==
{|
| '''INT''' processTypeID || - The [[processTypeID]] of the [[processType]] to get the processes' processIDs of.
|}

== Returns ==
'''INT''' : The [[processID]] of a process of the given processType.
{|
| 0 || - There are no more processes of the given processType, which have not been returned.
|-
| >0 || - The [[processID]] of a process of the given processType.
|}

== Example ==
<pre>
Program example;
Begin
signaltype(type Monkey,s_kill);
End

/**
* Empty process
*/
Process Monkey()
Begin
End

/**
* Signals every process of type 't' the signal 'signal'.
*/
Function int signaltype(int t, int signal)
Begin
while( (x=get_id(t)) ) // while there is an unprocessed process left and store that in 'x'
signal(x,signal); // signal the process with processID 'x'.
end
End

// Of course, the very observant of you already noticed that signaltype(my_type,my_signal)
// does the same thing as the function signal(my_type,my_signal), but this is just to
// illustrate the workings.

/**
* Signals every process the signal 'signal'.
*/
Function int signalall(int signal)
Begin
while( (x=get_id(0)) ) // while there is an unprocessed process left and store that in 'x'
signal(x,signal); // signal the process with processID 'x'.
end
End

// get_id(0) returns a process of any type. This is a possible implementation of a
// function which signals all existing processes. Note that this can be dangerous to use,
// as in some cases you might want one or two processes to stay alive.
</pre>
Used in example: [[signal]]()

Get id - Revision history

Sandman at 11:41, 25 December 2007

Sandman: New page: Category:functions Category:processinteraction ==Definition== '''INT''' get_id ( <'''INT''' processTypeID> ) Returns a ProcessID of a process of the specified [[ProcessTy...