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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef INCLUDE_PERFETTO_TRACE_PROCESSOR_BASIC_TYPES_H_
#define INCLUDE_PERFETTO_TRACE_PROCESSOR_BASIC_TYPES_H_
#include <assert.h>
#include <math.h>
#include <stdarg.h>
#include <stdint.h>
#include <functional>
#include <string>
#include "perfetto/base/export.h"
#include "perfetto/base/logging.h"
namespace perfetto {
namespace trace_processor {
// Various places in trace processor assume a max number of CPUs to keep code
// simpler (e.g. use arrays instead of vectors).
constexpr size_t kMaxCpus = 128;
// Struct for configuring a TraceProcessor instance (see trace_processor.h).
struct PERFETTO_EXPORT Config {
// When set to true, this option forces trace processor to perform a full
// sort ignoring any internal heureustics to skip sorting parts of the data.
bool force_full_sort = false;
// When set to false, this option makes the trace processor not include ftrace
// events in the raw table; this makes converting events back to the systrace
// text format impossible. On the other hand, it also saves ~50% of memory
// usage of trace processor. For reference, Studio intends to use this option.
//
// Note: "generic" ftrace events will be parsed into the raw table even if
// this flag is false and all other events which parse into the raw table are
// unaffected by this flag.
bool ingest_ftrace_in_raw_table = true;
};
// Represents a dynamically typed value returned by SQL.
struct PERFETTO_EXPORT SqlValue {
// Represents the type of the value.
enum Type {
kNull = 0,
kLong,
kDouble,
kString,
kBytes,
};
SqlValue() = default;
static SqlValue Long(int64_t v) {
SqlValue value;
value.long_value = v;
value.type = Type::kLong;
return value;
}
static SqlValue Double(double v) {
SqlValue value;
value.double_value = v;
value.type = Type::kDouble;
return value;
}
static SqlValue String(const char* v) {
SqlValue value;
value.string_value = v;
value.type = Type::kString;
return value;
}
double AsDouble() {
assert(type == kDouble);
return double_value;
}
bool is_null() const { return type == Type::kNull; }
// Up to 1 of these fields can be accessed depending on |type|.
union {
// This string will be owned by the iterator that returned it and is valid
// as long until the subsequent call to Next().
const char* string_value;
int64_t long_value;
double double_value;
const void* bytes_value;
};
// The size of bytes_value. Only valid when |type == kBytes|.
size_t bytes_count = 0;
Type type = kNull;
};
} // namespace trace_processor
} // namespace perfetto
#endif // INCLUDE_PERFETTO_TRACE_PROCESSOR_BASIC_TYPES_H_
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