testcase-cpuquota.txt

import Control.Concurrent
import Control.Monad
import System.Process

main :: IO ()
main = do
  writeFile "a.c"
    "#include <stdio.h>\n\
    \#include <pthread.h>\n\
    \#include <assert.h>\n\
    \const int N = 3;\n\
    \void* zooi(void *n) {\n\
    \  int k = *(int*)n;\n\
    \  for (int i = 0; i < 40000; i++)\n\
    \    for (int j = 0; j < 40000; j++)\n\
    \      k = k * (i + j) + 3;\n\
    \  printf(\"%d\\n\", k);\n\
    \  return NULL;\n\
    \}\n\
    \int main(int argc, char **argv) {\n\
    \  pthread_t ths[N];\n\
    \  pthread_attr_t attr;\n\
    \  assert(pthread_attr_init(&attr) == 0);\n\
    \  for (int i = 0; i < N; i++) {\n\
    \    assert(pthread_create(&ths[i], &attr, &zooi, &argc) == 0);\n\
    \  }\n\
    \  pthread_attr_destroy(&attr);\n\
    \  for (int i = 0; i < N; i++) {\n\
    \    assert(pthread_join(ths[i], NULL) == 0);\n\
    \  }\n\
    \}\n"
  callProcess "gcc" ["-Wall", "-O2", "a.c", "-o", "a", "-pthread"]
  putStrLn $ "Running ./a"
  callProcess "bash" ["-c", "time ./a"]