#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#include <string.h>
#include <errno.h>

int main (int argc, char *argv[])
{
    int size = 1024 * 1024 * 100;
    
    for (int i = 0; i < 10000000; ++i) {
        void* mem = mmap(0, size, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, 0, 0);
        if (mem == MAP_FAILED) {
            fprintf(stderr, "#%d, map failed (%s)\n", i, strerror(errno));
            sleep(5);
            exit(1);
        }
        // int* ptr = (int*) mem;
        // ++(*ptr);
        if (i % 100000 == 0)
            printf("#%d, Allocated %d bytes at %p\n", i, size, mem);
    }
    printf("Sleeping...");
    fflush(stdout);
    sleep(30);
    printf(" Exiting...\n");
    return 0;
}