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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/390223051): Remove C-library calls to fix the errors.
#pragma allow_unsafe_libc_calls
#endif
#include "base/process/memory.h"
#include <string.h>
#include "base/allocator/buildflags.h"
#include "base/debug/alias.h"
#include "base/immediate_crash.h"
#include "base/logging.h"
#include "build/build_config.h"
#include "partition_alloc/buildflags.h"
#if PA_BUILDFLAG(USE_PARTITION_ALLOC)
#include "partition_alloc/page_allocator.h" // nogncheck
#endif
#if BUILDFLAG(IS_WIN)
#include <windows.h>
#else
#include <unistd.h>
#endif // BUILDFLAG(IS_WIN)
namespace base {
// Defined in memory_mac.mm for macOS + use_partition_alloc_as_malloc=false.
// In case of use_partition_alloc_as_malloc=true, no need to route the call to
// the system default calloc of macOS.
#if !BUILDFLAG(IS_APPLE) || PA_BUILDFLAG(USE_PARTITION_ALLOC_AS_MALLOC)
bool UncheckedCalloc(size_t num_items, size_t size, void** result) {
const size_t alloc_size = num_items * size;
// Overflow check
if (size && ((alloc_size / size) != num_items)) {
*result = nullptr;
return false;
}
if (!UncheckedMalloc(alloc_size, result)) {
return false;
}
memset(*result, 0, alloc_size);
return true;
}
#endif // !BUILDFLAG(IS_APPLE) || PA_BUILDFLAG(USE_PARTITION_ALLOC_AS_MALLOC)
namespace internal {
bool ReleaseAddressSpaceReservation() {
#if PA_BUILDFLAG(USE_PARTITION_ALLOC)
return partition_alloc::ReleaseReservation();
#else
return false;
#endif
}
} // namespace internal
} // namespace base
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