1// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
2// Distributed under the MIT License (http://opensource.org/licenses/MIT)
3
4#pragma once
5
6#include "base_sink.h"
7#include <spdlog/details/log_msg.h>
8#include <spdlog/details/null_mutex.h>
9#include <spdlog/pattern_formatter.h>
10
11#include <algorithm>
12#include <memory>
13#include <mutex>
14#include <vector>
15
16// Distribution sink (mux). Stores a vector of sinks which get called when log
17// is called
18
19namespace spdlog {
20namespace sinks {
21
22template<typename Mutex>
23class dist_sink : public base_sink<Mutex>
24{
25public:
26 dist_sink() = default;
27 explicit dist_sink(std::vector<std::shared_ptr<sink>> sinks)
28 : sinks_(sinks)
29 {}
30
31 dist_sink(const dist_sink &) = delete;
32 dist_sink &operator=(const dist_sink &) = delete;
33
34 void add_sink(std::shared_ptr<sink> sink)
35 {
36 std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
37 sinks_.push_back(sink);
38 }
39
40 void remove_sink(std::shared_ptr<sink> sink)
41 {
42 std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
43 sinks_.erase(std::remove(sinks_.begin(), sinks_.end(), sink), sinks_.end());
44 }
45
46 void set_sinks(std::vector<std::shared_ptr<sink>> sinks)
47 {
48 std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
49 sinks_ = std::move(sinks);
50 }
51
52 std::vector<std::shared_ptr<sink>> &sinks()
53 {
54 return sinks_;
55 }
56
57protected:
58 void sink_it_(const details::log_msg &msg) override
59 {
60 for (auto &sub_sink : sinks_)
61 {
62 if (sub_sink->should_log(msg.level))
63 {
64 sub_sink->log(msg);
65 }
66 }
67 }
68
69 void flush_() override
70 {
71 for (auto &sub_sink : sinks_)
72 {
73 sub_sink->flush();
74 }
75 }
76
77 void set_pattern_(const std::string &pattern) override
78 {
79 set_formatter_(details::make_unique<spdlog::pattern_formatter>(pattern));
80 }
81
82 void set_formatter_(std::unique_ptr<spdlog::formatter> sink_formatter) override
83 {
84 base_sink<Mutex>::formatter_ = std::move(sink_formatter);
85 for (auto &sub_sink : sinks_)
86 {
87 sub_sink->set_formatter(base_sink<Mutex>::formatter_->clone());
88 }
89 }
90 std::vector<std::shared_ptr<sink>> sinks_;
91};
92
93using dist_sink_mt = dist_sink<std::mutex>;
94using dist_sink_st = dist_sink<details::null_mutex>;
95
96} // namespace sinks
97} // namespace spdlog
98