thread_dealloc_unittest.cc revision 5821806d5e7f356e8fa4b058a389a808ea183019 
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29
30// ---
31// Author: Sanjay Ghemawat
32//
33// Check that we do not leak memory when cycling through lots of threads.
34
35#include "config_for_unittests.h"
36#include <stdio.h>
37#ifdef HAVE_UNISTD_H
38#include <unistd.h>    // for sleep()
39#endif
40#include "base/logging.h"
41#include <gperftools/malloc_extension.h>
42#include "tests/testutil.h"   // for RunThread()
43
44// Size/number of objects to allocate per thread (1 MB per thread)
45static const int kObjectSize = 1024;
46static const int kNumObjects = 1024;
47
48// Number of threads to create and destroy
49static const int kNumThreads = 1000;
50
51// Allocate lots of stuff
52static void AllocStuff() {
53  void** objects = new void*[kNumObjects];
54  for (int i = 0; i < kNumObjects; i++) {
55    objects[i] = malloc(kObjectSize);
56  }
57  for (int i = 0; i < kNumObjects; i++) {
58    free(objects[i]);
59  }
60  delete[] objects;
61}
62
63int main(int argc, char** argv) {
64  static const int kDisplaySize = 1048576;
65  char* display = new char[kDisplaySize];
66
67  for (int i = 0; i < kNumThreads; i++) {
68    RunThread(&AllocStuff);
69
70    if (((i+1) % 200) == 0) {
71      fprintf(stderr, "Iteration: %d of %d\n", (i+1), kNumThreads);
72      MallocExtension::instance()->GetStats(display, kDisplaySize);
73      fprintf(stderr, "%s\n", display);
74    }
75  }
76  delete[] display;
77
78  printf("PASS\n");
79#ifdef HAVE_UNISTD_H
80  sleep(1);     // Prevent exit race problem with glibc
81#endif
82  return 0;
83}
84