_exit

Name

_exit - terminate the curent process

Library

libc.lib

Synopsis

#include <unistd.h>

void _exit (int status);

Return values

The _exit system call can never return.

Detailed description

The _exit system call terminates a process with the following consequences:

All of the descriptors open in the calling process are closed. This may entail delays, for example, waiting for output to drain; a process in this state may not be killed, as it is already dying.
If the parent process of the calling process has an outstanding wait call, it is notified of the calling process’s termination and the status is set as defined by wait.
The parent process-ID of all of the calling process’s existing child processes are set to 1; the initialization process inherits each of these processes

As the function _exit terminates the calling process instantly, the value status is returned as the process’ exit status to it’s parent process. Most C programs call the library routine exit, which flushes buffers, closes streams, unlinks temporary files, etc., before calling _exit.

Examples

#include <unistd.h>
 
int main( void )
{
   _exit( 1 );
   return 0;
}

Errors

No errors are defined.

Limitations

The signal related functionalities are not applicable to the symbian implementation as there is no support for signals from symbian.

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