Micro Focus Studio Enterprise Edition for Windows > Programming > Mainframe Programming > PL/I Programming > CodeWatch User's Guide > CodeWatch Commands > Ncatch

Ncatch

Use

Prevents process control from returning to the debugger when the given signal is generated.

Command Syntax

NCATCH signal

where:

signal: Can be either a signal name mnemonic (such as SIGALRM, SIGINT, and so on) or the signal number corresponding to that signal. Signal names may be specified in either uppercase or lowercase

Description

The NCATCH command prevents process control from returning to the debugger when the given signal is generated. The child (user) process continues without interruption, as if the given signal had been generated. This implies that user-defined handlers will be executed.

Example

In the following example, the process control will not return from the child process to the debugger when a SIGALRM is generated.

CodeWatch> NCATCH SIGALRM
Changing SIGALRM to now not be caught.

As a result, Ncatch allows the child process to continue uninterrupted when a SIGALRM is generated. If the user process has its own signal handler for a SIGALRM, that signal handler will be executed.