72 lines
1.6 KiB
Markdown
72 lines
1.6 KiB
Markdown
Overview
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--------
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"A signal is a software interrupt delivered to a process. The operating system uses signals to report exceptional situations to an executing program. Some signals report errors such as references to invalid memory addresses; others report asynchronous events, such as disconnection of a phone line." -- [GNU](http://www.gnu.org/software/libc/manual/html_node/Signal-Handling.html)
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Example
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-------
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```C++
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#include <memory>
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#include <cstdlib>
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#include <restbed>
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#include <csignal>
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#include <sys/types.h>
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#ifdef _WIN32
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#include <process.h>
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#else
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#include <unistd.h>
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#endif
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using namespace std;
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using namespace restbed;
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void sighup_handler( const int signal_number )
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{
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fprintf( stderr, "Received SIGINT signal number '%i'.\n", signal_number );
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}
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void sigterm_handler( const int signal_number )
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{
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fprintf( stderr, "Received SIGTERM signal number '%i'.\n", signal_number );
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}
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void ready_handler( Service& )
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{
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#ifdef _WIN32
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fprintf( stderr, "Service PID is '%i'.\n", _getpid( ) );
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#else
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fprintf( stderr, "Service PID is '%i'.\n", getpid( ) );
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#endif
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}
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int main( const int, const char** )
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{
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auto settings = make_shared< Settings >( );
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settings->set_port( 1984 );
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Service service;
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service.set_ready_handler( ready_handler );
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service.set_signal_handler( SIGINT, sighup_handler );
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service.set_signal_handler( SIGTERM, sigterm_handler );
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service.start( settings );
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return EXIT_SUCCESS;
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}
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```
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Build
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-----
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> $ clang++ -o example example.cpp -l restbed
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Execution
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---------
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> $ ./example
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>
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> $ kill -s SIGINT <PID>
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>
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> $ kill -s SIGTERM <PID>
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