signal
- Updated2023-02-21
- 2 minute(s) read
signal
void (*signal (int signal, void (*signalHandler)(int)))(int);
Purpose
Selects the response for a specified signal. The three possible responses are:
- Ignore the signal
- Default response—terminate program execution
- Call a function when that signal occurs
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Note This function panel only includes signals required by ANSI Standards. For additional signals, check signal.h. |
Parameters
| Input | |||||||||||||||||||||||
| Name | Type | Description | |||||||||||||||||||||
| signal | int |
Contains the signal to which a response will be defined. ANSI Standard defines the signal options available in this parameter.
Additional signals may be available for different platforms. Check signal.h for additional signal
options. The signals available from this parameter are the following:
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| signalHandler | void (*)(int) |
Contains the desired response to the signal stored in signal. The following responses are available:
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Return Value
| Name | Type | Description |
| previousHandler | void (*)(int) | Contains the returned result of the function. If the signal handling request can be honored,signal returns the signal handler for the most recent call to this function; otherwise, the function returns SIG_ERR indicating that the request could not be handled. |
Additional Information
Library: ANSI C Library
Include file: ansi_c.h
LabWindows/CVI compatibility: LabWindows/CVI 3.0 and later