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// Copyright 2019 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.
#ifndef PLATFORM_BASE_TRACE_LOGGING_TYPES_H_
#define PLATFORM_BASE_TRACE_LOGGING_TYPES_H_
#include <stdint.h>
#include <limits>
namespace openscreen {
// Define TraceId type here since other TraceLogging files import it.
using TraceId = uint64_t;
// kEmptyTraceId is the Trace ID when tracing at a global level, not inside any
// tracing block - ie this will be the parent ID for a top level tracing block.
constexpr TraceId kEmptyTraceId = 0x0;
// kUnsetTraceId is the Trace ID passed in to the tracing library when no user-
// specified value is desired.
constexpr TraceId kUnsetTraceId = std::numeric_limits<TraceId>::max();
// A class to represent the current TraceId Hirearchy and for the user to
// pass around as needed.
struct TraceIdHierarchy {
TraceId current;
TraceId parent;
TraceId root;
static constexpr TraceIdHierarchy Empty() {
return {kEmptyTraceId, kEmptyTraceId, kEmptyTraceId};
}
bool HasCurrent() { return current != kUnsetTraceId; }
bool HasParent() { return parent != kUnsetTraceId; }
bool HasRoot() { return root != kUnsetTraceId; }
};
inline bool operator==(const TraceIdHierarchy& lhs,
const TraceIdHierarchy& rhs) {
return lhs.current == rhs.current && lhs.parent == rhs.parent &&
lhs.root == rhs.root;
}
inline bool operator!=(const TraceIdHierarchy& lhs,
const TraceIdHierarchy& rhs) {
return !(lhs == rhs);
}
// BitFlags to represent the supported tracing categories.
// NOTE: These are currently placeholder values and later changes should feel
// free to edit them.
struct TraceCategory {
enum Value : uint64_t {
kAny = std::numeric_limits<uint64_t>::max(),
kMdns = 0x01 << 0,
kQuic = 0x01 << 1,
kSsl = 0x01 << 2,
kPresentation = 0x01 << 3,
kStandaloneReceiver = 0x01 << 4,
kDiscovery = 0x01 << 5,
kStandaloneSender = 0x01 << 6,
kReceiver = 0x01 << 7,
kSender = 0x01 << 8
};
};
} // namespace openscreen
#endif // PLATFORM_BASE_TRACE_LOGGING_TYPES_H_
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