31 lines
673 B
C++
31 lines
673 B
C++
/*
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* Helper program of test_conflict_between_processes.
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*
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* The program configures ISR on pin 31 (BCM 1) and polls for a termination request.
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <wiringPi.h>
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#define LISTENER_PIN 31 // BCM 1
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static uint8_t ok_to_stop = 0;
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static void noop() {
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fprintf(stderr, "interrupted\n");
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ok_to_stop = 1;
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}
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int main(int, char *[]) {
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fprintf(stderr, "start\n");
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wiringPiSetup();
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if (wiringPiISR(LISTENER_PIN, INT_EDGE_RISING, noop)) {
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fprintf(stderr, "failed to start listener\n");
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return -1;
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}
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fprintf(stderr, "start listening\n");
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while (!ok_to_stop) {
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delay(1000);
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}
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fprintf(stderr, "bye\n");
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} |