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57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_ALLOCATOR_ALLOCATOR_INTERCEPTION_MAC_H_
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#define BASE_ALLOCATOR_ALLOCATOR_INTERCEPTION_MAC_H_
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#include <stddef.h>
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#include "base/base_export.h"
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#include "third_party/apple_apsl/malloc.h"
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namespace base {
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namespace allocator {
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struct MallocZoneFunctions;
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// Saves the function pointers currently used by the default zone.
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void StoreFunctionsForDefaultZone();
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// Same as StoreFunctionsForDefaultZone, but for all malloc zones.
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void StoreFunctionsForAllZones();
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// For all malloc zones that have been stored, replace their functions with
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// |functions|.
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void ReplaceFunctionsForStoredZones(const MallocZoneFunctions* functions);
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extern bool g_replaced_default_zone;
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// Calls the original implementation of malloc/calloc prior to interception.
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bool UncheckedMallocMac(size_t size, void** result);
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bool UncheckedCallocMac(size_t num_items, size_t size, void** result);
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// Intercepts calls to default and purgeable malloc zones. Intercepts Core
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// Foundation and Objective-C allocations.
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// Has no effect on the default malloc zone if the allocator shim already
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// performs that interception.
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BASE_EXPORT void InterceptAllocationsMac();
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// Updates all malloc zones to use their original functions.
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// Also calls ClearAllMallocZonesForTesting.
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BASE_EXPORT void UninterceptMallocZonesForTesting();
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// Periodically checks for, and shims new malloc zones. Stops checking after 1
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// minute.
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BASE_EXPORT void PeriodicallyShimNewMallocZones();
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// Exposed for testing.
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BASE_EXPORT void ShimNewMallocZones();
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BASE_EXPORT void ReplaceZoneFunctions(ChromeMallocZone* zone,
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const MallocZoneFunctions* functions);
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} // namespace allocator
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} // namespace base
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#endif // BASE_ALLOCATOR_ALLOCATOR_INTERCEPTION_MAC_H_
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