infra/pipetrace.h


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37

#pragma once

#include <cstdint>
#include <fmt/format.h>
#include <ostream>
#include <string>

namespace infra {
    struct transaction {
        std::uint64_t record = ~(std::uint64_t)0;
    };

    struct pt {
        static std::ostream *ptfile;

        static std::uint64_t next_record;

        static transaction toplevel() {
            transaction t;
            t.record = next_record++;
            return t;
        }

        static transaction child(const transaction &p) {
            transaction t;
            t.record = next_record++;
            if (ptfile)
                *ptfile << fmt::format("{} parent {}\n", t.record, p.record);
            return t;
        }

        static void event(const transaction &t, const char *event, std::uint64_t time, const std::string &data) {
            if (ptfile)
                *ptfile << fmt::format("@{} {} {} {}\n", time, t.record, event, data);
        }
    };
}