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raise

From cppreference.com
< c‎ | program
Defined in header <signal.h>
int raise( int sig );

Sends signal sig to the program. The signal handler, specified using signal() is invoked.

If the user-defined signal handling strategy is not set using signal() yet, it is implementation-defined whether the signal will be ignored or default handler will be invoked.

Contents

[edit] Parameters

sig - the signal to be sent. It can be an implementation-defined value or one of the following values:
defines signal types
(macro constant) [edit]


[edit] Return value

0 upon success, non-zero value on failure.

[edit] Example

#include <signal.h>
#include <stdio.h>
 
void signal_handler(int signal)
{
    printf("Received signal %d\n", signal);
}
 
int main(void)
{
    // Install a signal handler.
    signal(SIGTERM, signal_handler);
 
    printf("Sending signal %d\n", SIGTERM);
    raise(SIGTERM);
    printf("Exit main()\n");
}

Output:

Sending signal 15
Received signal 15
Exit main()

[edit] See also

sets a signal handler for particular signal
(function) [edit]