1 /*
2 * Copyright © 2020 Collabora, Ltd.
3 * Author: Antonio Caggiano <[email protected]>
4 *
5 * SPDX-License-Identifier: MIT
6 */
7
8 #pragma once
9
10 #include <perfetto.h>
11
12 #define PPS_LOG PERFETTO_LOG
13 #define PPS_LOG_IMPORTANT PERFETTO_ILOG
14 #define PPS_LOG_ERROR PERFETTO_ELOG
15 #define PPS_LOG_FATAL PERFETTO_FATAL
16
17 namespace pps
18 {
19 enum class State {
20 Stop, // initial state, or stopped by the tracing service
21 Start, // running, sampling data
22 };
23
24 /// @brief Checks whether a return value is valid
25 /// @param res Result from a syscall
26 /// @param msg Message to prepend to strerror
27 /// @return True if ok, false otherwise
28 bool check(int res, const char *msg);
29
30 void make_thread_rt();
31
32 /// @param num Numerator
33 /// @param den Denominator
34 /// @return A ratio between two floating point numbers, or 0 if the denominator is 0
ratio(double num,double den)35 constexpr double ratio(double num, double den)
36 {
37 return den > 0.0 ? num / den : 0.0;
38 }
39
40 } // namespace pps
41