third_party/tcmalloc/chromium/src/tests/malloc_extension_test.cc

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  29
  30 // ---
  31 // Author: Craig Silverstein
  32 //
  33 // Simple test of malloc_extension.  Includes test of C shims.
  34
  35 #include "config_for_unittests.h"
  36 #include <stdio.h>
  37 #include <sys/types.h>
  38 #include "base/logging.h"
  39 #include <gperftools/malloc_extension.h>
  40 #include <gperftools/malloc_extension_c.h>
  41
  42 using STL_NAMESPACE::vector;
  43
  44 int main(int argc, char** argv) {
  45   void* a = malloc(1000);
  46
  47   size_t cxx_bytes_used, c_bytes_used;
  48   ASSERT_TRUE(MallocExtension::instance()->GetNumericProperty(
  49       "generic.current_allocated_bytes", &cxx_bytes_used));
  50   ASSERT_TRUE(MallocExtension_GetNumericProperty(
  51       "generic.current_allocated_bytes", &c_bytes_used));
  52   ASSERT_GT(cxx_bytes_used, 1000);
  53   ASSERT_EQ(cxx_bytes_used, c_bytes_used);
  54
  55   ASSERT_TRUE(MallocExtension::instance()->VerifyAllMemory());
  56   ASSERT_TRUE(MallocExtension_VerifyAllMemory());
  57
  58   ASSERT_EQ(MallocExtension::kOwned,
  59             MallocExtension::instance()->GetOwnership(a));
  60   // TODO(csilvers): this relies on undocumented behavior that
  61   // GetOwnership works on stack-allocated variables.  Use a better test.
  62   ASSERT_EQ(MallocExtension::kNotOwned,
  63             MallocExtension::instance()->GetOwnership(&cxx_bytes_used));
  64   ASSERT_EQ(MallocExtension::kNotOwned,
  65             MallocExtension::instance()->GetOwnership(NULL));
  66   ASSERT_GE(MallocExtension::instance()->GetAllocatedSize(a), 1000);
  67   // This is just a sanity check.  If we allocated too much, tcmalloc is broken
  68   ASSERT_LE(MallocExtension::instance()->GetAllocatedSize(a), 5000);
  69   ASSERT_GE(MallocExtension::instance()->GetEstimatedAllocatedSize(1000), 1000);
  70
  71   for (int i = 0; i < 10; ++i) {
  72     void *p = malloc(i);
  73     ASSERT_GE(MallocExtension::instance()->GetAllocatedSize(p),
  74              MallocExtension::instance()->GetEstimatedAllocatedSize(i));
  75     free(p);
  76   }
  77
  78   // Check the c-shim version too.
  79   ASSERT_EQ(MallocExtension_kOwned, MallocExtension_GetOwnership(a));
  80   ASSERT_EQ(MallocExtension_kNotOwned,
  81             MallocExtension_GetOwnership(&cxx_bytes_used));
  82   ASSERT_EQ(MallocExtension_kNotOwned, MallocExtension_GetOwnership(NULL));
  83   ASSERT_GE(MallocExtension_GetAllocatedSize(a), 1000);
  84   ASSERT_LE(MallocExtension_GetAllocatedSize(a), 5000);
  85   ASSERT_GE(MallocExtension_GetEstimatedAllocatedSize(1000), 1000);
  86
  87   free(a);
  88
  89   // Verify that the .cc file and .h file have the same enum values.
  90   ASSERT_EQ(static_cast<int>(MallocExtension::kUnknownOwnership),
  91             static_cast<int>(MallocExtension_kUnknownOwnership));
  92   ASSERT_EQ(static_cast<int>(MallocExtension::kOwned),
  93             static_cast<int>(MallocExtension_kOwned));
  94   ASSERT_EQ(static_cast<int>(MallocExtension::kNotOwned),
  95             static_cast<int>(MallocExtension_kNotOwned));
  96
  97   printf("DONE\n");
  98   return 0;
  99 }