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// Copyright 2015 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/trace_event/memory_allocator_dump_guid.h"
#include "base/format_macros.h"
#include "base/sha1.h"
#include "base/strings/stringprintf.h"
namespace base {
namespace trace_event {
namespace {
uint64_t HashString(const std::string& str) {
uint64_t hash[(kSHA1Length + sizeof(uint64_t) - 1) / sizeof(uint64_t)] = {0};
SHA1HashBytes(reinterpret_cast<const unsigned char*>(str.data()), str.size(),
reinterpret_cast<unsigned char*>(hash));
return hash[0];
}
} // namespace
MemoryAllocatorDumpGuid::MemoryAllocatorDumpGuid(uint64_t guid) : guid_(guid) {}
MemoryAllocatorDumpGuid::MemoryAllocatorDumpGuid()
: MemoryAllocatorDumpGuid(0u) {
}
MemoryAllocatorDumpGuid::MemoryAllocatorDumpGuid(const std::string& guid_str)
: MemoryAllocatorDumpGuid(HashString(guid_str)) {
}
std::string MemoryAllocatorDumpGuid::ToString() const {
return StringPrintf("%" PRIx64, guid_);
}
} // namespace trace_event
} // namespace base
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