lib/sanitizer_common/tests/sanitizer_posix_test.cc

   1 //===-- sanitizer_posix_test.cc -------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // Tests for POSIX-specific code.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "sanitizer_common/sanitizer_platform.h"
  15 #if SANITIZER_POSIX
  16
  17 #include "sanitizer_common/sanitizer_common.h"
  18 #include "gtest/gtest.h"
  19
  20 #include <pthread.h>
  21
  22 namespace __sanitizer {
  23
  24 static pthread_key_t key;
  25 static bool destructor_executed;
  26
  27 extern "C"
  28 void destructor(void *arg) {
  29   uptr iter = reinterpret_cast<uptr>(arg);
  30   if (iter > 1) {
  31     ASSERT_EQ(0, pthread_setspecific(key, reinterpret_cast<void *>(iter - 1)));
  32     return;
  33   }
  34   destructor_executed = true;
  35 }
  36
  37 extern "C"
  38 void *thread_func(void *arg) {
  39   return reinterpret_cast<void*>(pthread_setspecific(key, arg));
  40 }
  41
  42 static void SpawnThread(uptr iteration) {
  43   destructor_executed = false;
  44   pthread_t tid;
  45   ASSERT_EQ(0, pthread_create(&tid, 0, &thread_func,
  46                               reinterpret_cast<void *>(iteration)));
  47   void *retval;
  48   ASSERT_EQ(0, pthread_join(tid, &retval));
  49   ASSERT_EQ(0, retval);
  50 }
  51
  52 TEST(SanitizerCommon, PthreadDestructorIterations) {
  53   ASSERT_EQ(0, pthread_key_create(&key, &destructor));
  54   SpawnThread(kPthreadDestructorIterations);
  55   EXPECT_TRUE(destructor_executed);
  56   SpawnThread(kPthreadDestructorIterations + 1);
  57   EXPECT_FALSE(destructor_executed);
  58 }
  59
  60 }  // namespace __sanitizer
  61
  62 #endif  // SANITIZER_POSIX