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47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
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// Copyright 2016 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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#include "base/allocator/allocator_check.h"
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#include "base/allocator/features.h"
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#include "build/build_config.h"
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#if defined(OS_WIN)
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#include "base/allocator/winheap_stubs_win.h"
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#endif
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#if defined(OS_LINUX)
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#include <malloc.h>
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#endif
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#if defined(OS_MACOSX)
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#include "base/allocator/allocator_interception_mac.h"
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#endif
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namespace base {
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namespace allocator {
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bool IsAllocatorInitialized() {
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#if defined(OS_WIN) && BUILDFLAG(USE_ALLOCATOR_SHIM)
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// Set by allocator_shim_override_ucrt_symbols_win.h when the
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// shimmed _set_new_mode() is called.
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return g_is_win_shim_layer_initialized;
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#elif defined(OS_LINUX) && defined(USE_TCMALLOC) && \
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!defined(MEMORY_TOOL_REPLACES_ALLOCATOR)
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// From third_party/tcmalloc/chromium/src/gperftools/tcmalloc.h.
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// TODO(primiano): replace with an include once base can depend on allocator.
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#define TC_MALLOPT_IS_OVERRIDDEN_BY_TCMALLOC 0xbeef42
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return (mallopt(TC_MALLOPT_IS_OVERRIDDEN_BY_TCMALLOC, 0) ==
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TC_MALLOPT_IS_OVERRIDDEN_BY_TCMALLOC);
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#elif defined(OS_MACOSX) && !defined(MEMORY_TOOL_REPLACES_ALLOCATOR)
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// From allocator_interception_mac.mm.
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return base::allocator::g_replaced_default_zone;
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#else
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return true;
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#endif
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}
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} // namespace allocator
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} // namespace base
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