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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/process/memory.h"
#include "base/allocator/allocator_interception_mac.h"
#include "base/allocator/allocator_shim.h"
#include "base/allocator/features.h"
#include "build/build_config.h"
namespace base {
namespace {
void oom_killer_new() {
TerminateBecauseOutOfMemory(0);
}
} // namespace
void EnableTerminationOnHeapCorruption() {
#if !ARCH_CPU_64_BITS
DLOG(WARNING) << "EnableTerminationOnHeapCorruption only works on 64-bit";
#endif
}
bool UncheckedMalloc(size_t size, void** result) {
return allocator::UncheckedMallocMac(size, result);
}
bool UncheckedCalloc(size_t num_items, size_t size, void** result) {
return allocator::UncheckedCallocMac(num_items, size, result);
}
void EnableTerminationOnOutOfMemory() {
// Step 1: Enable OOM killer on C++ failures.
std::set_new_handler(oom_killer_new);
// Step 2: Enable OOM killer on C-malloc failures for the default zone (if we
// have a shim).
#if BUILDFLAG(USE_ALLOCATOR_SHIM)
allocator::SetCallNewHandlerOnMallocFailure(true);
#endif
// Step 3: Enable OOM killer on all other malloc zones (or just "all" without
// "other" if shim is disabled).
allocator::InterceptAllocationsMac();
}
} // namespace base
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