Index: base/allocator/allocator_extension.h |
diff --git a/base/allocator/allocator_extension.h b/base/allocator/allocator_extension.h |
index 64bfd1cc4acaa3fe2a8fc1e8f80ab1fe674f3856..9f2775a427fa73de1ca221eb7d646209b048b271 100644 |
--- a/base/allocator/allocator_extension.h |
+++ b/base/allocator/allocator_extension.h |
@@ -13,6 +13,10 @@ |
namespace base { |
namespace allocator { |
+// Callback types for alloc and free. |
+using AllocHookFunc = void (*)(const void*, size_t); |
+using FreeHookFunc = void (*)(const void*); |
+ |
// Request that the allocator release any free memory it knows about to the |
// system. |
BASE_EXPORT void ReleaseFreeMemory(); |
@@ -25,6 +29,22 @@ BASE_EXPORT bool GetNumericProperty(const char* name, size_t* value); |
BASE_EXPORT bool IsHeapProfilerRunning(); |
+// Register callbacks for alloc and free. Can only store one callback at a time |
+// for each of alloc and free. |
+BASE_EXPORT void SetHooks(AllocHookFunc alloc_hook, FreeHookFunc free_hook); |
+ |
+// Attempts to unwind the call stack from the current location where this |
+// function is being called from. Must be called from a hook function registered |
+// by calling SetSingle{Alloc,Free}Hook, directly or indirectly. |
+// |
+// Arguments: |
+// stack: pointer to a pre-allocated array of void*'s. |
+// max_stack_size: indicates the size of the array in |stack|. |
+// |
+// Returns the number of call stack frames stored in |stack|, or 0 if no call |
+// stack information is available. |
+BASE_EXPORT int GetCallStack(void** stack, int max_stack_size); |
+ |
} // namespace allocator |
} // namespace base |