NAME
A function of omni::application
omni::application::last_signal
A function of omni::application
#include <omni/application.hpp>int omni::application::last_signal()
DESCRIPTION
If a call to an
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If a call to an
omni::application::run context has been made and a signal is received (e.g. SIGABRT or SIGSEGV), this function will return the last signal received.
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CONSIDERATIONS
This function will only have an effect if you have explicitly called one of the
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This function will only have an effect if you have explicitly called one of the
omni::application::run functions to block the main thread until program completion.
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PLATFORM SPECIFIC
The number value returned can vary between platforms for the different signals. For example,
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The number value returned can vary between platforms for the different signals. For example,
SIGINT on Windows has the value of 0 while on some *nix systems, the value is 2, which might lead to confusion expecting a 0 value to mean a SUCCESS value. To this, if you are checking the signal value for a specific value, be sure to check against the specific signal itself, i.e. if (omni::application::last_signal() == SIGINT)
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EXAMPLE
Visit the examples page for more.
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#include <omnilib> static volatile bool dorun = true; void app_signal(int sig) { std::cout << "Signal received: " << sig << std::endl; dorun = false; } void app_run() { while (dorun) { omni::sync::sleep(10); // small sleep } } int main(int argc, const char* argv[]) { omni::application::signal_handler::attach(&app_signal); int ret = omni::application::run(&app_run); std::cout << "Last signal: " << omni::application::last_signal() << std::endl; return ret; }
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