Defined in header <csignal> | ||
---|---|---|
int raise( int sig ); |
Sends signal sig to the program. The signal handler (specified using the std::signal()
function) is invoked.
If the user-defined signal handling strategy is not set using std::signal()
yet, it is implementation-defined whether the signal will be ignored or default handler will be invoked.
sig | - | the signal to be sent. It can be an implementation-defined value or one of the following values:
|
0
upon success, non-zero value on failure.
#include <csignal> #include <iostream> void signal_handler(int signal) { std::cout << "Received signal " << signal << '\n'; } int main() { // Install a signal handler std::signal(SIGTERM, signal_handler); std::cout << "Sending signal " << SIGTERM << '\n'; std::raise(SIGTERM); }
Possible output:
Sending signal 15 Received signal 15
sets a signal handler for particular signal (function) |
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