in-tree spdlog (#602)

move spdlog into the tree to remove dependency on vcpkg::spdlog, to allow diverging from the official version and evolve it to fit better with OTLP logging requirements

1 files changed, 70 insertions, 0 deletions

diff --git a/thirdparty/spdlog/tests/test_sink.h b/thirdparty/spdlog/tests/test_sink.h
new file mode 100644
index 000000000..9c0945232
--- /dev/null
+++ b/thirdparty/spdlog/tests/test_sink.h
@@ -0,0 +1,70 @@
+//
+// Copyright(c) 2018 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/details/null_mutex.h"
+#include "spdlog/sinks/base_sink.h"
+#include "spdlog/fmt/fmt.h"
+#include <chrono>
+#include <mutex>
+#include <thread>
+
+namespace spdlog {
+namespace sinks {
+
+template <class Mutex>
+class test_sink : public base_sink<Mutex> {
+    const size_t lines_to_save = 100;
+
+public:
+    size_t msg_counter() {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
+        return msg_counter_;
+    }
+
+    size_t flush_counter() {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
+        return flush_counter_;
+    }
+
+    void set_delay(std::chrono::milliseconds delay) {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
+        delay_ = delay;
+    }
+
+    // return last output without the eol
+    std::vector<std::string> lines() {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
+        return lines_;
+    }
+
+protected:
+    void sink_it_(const details::log_msg &msg) override {
+        memory_buf_t formatted;
+        base_sink<Mutex>::formatter_->format(msg, formatted);
+        // save the line without the eol
+        auto eol_len = strlen(details::os::default_eol);
+        using diff_t = typename std::iterator_traits<decltype(formatted.end())>::difference_type;
+        if (lines_.size() < lines_to_save) {
+            lines_.emplace_back(formatted.begin(), formatted.end() - static_cast<diff_t>(eol_len));
+        }
+        msg_counter_++;
+        std::this_thread::sleep_for(delay_);
+    }
+
+    void flush_() override { flush_counter_++; }
+
+    size_t msg_counter_{0};
+    size_t flush_counter_{0};
+    std::chrono::milliseconds delay_{std::chrono::milliseconds::zero()};
+    std::vector<std::string> lines_;
+};
+
+using test_sink_mt = test_sink<std::mutex>;
+using test_sink_st = test_sink<details::null_mutex>;
+
+}  // namespace sinks
+}  // namespace spdlog