Moved sources to src dir

src/logger.cpp

@@ -0,0 +1,46 @@
+//
+// logger.cpp
+// libsclogging
+//
+// Created by Bob Polis at 2020-04-29
+// Copyright (c) 2020 SwiftCoder. All rights reserved.
+//
+
+#include "logger.hpp"
+#include <unistd.h>
+#include <sys/time.h>
+#include <ctime>
+#include <cmath>
+#include <iomanip>
+
+using namespace sc;
+
+logger::logger(const std::string& name, loglevel level)
+    : _level(level), _name(name) {}
+
+void logger::msg(loglevel level, const char* file, int line, const char* func) {
+    if (level >= _level) {
+        if (_topcall) {
+            write_prefix(level, file, line, func);
+        } else {
+            _topcall = true;
+        }
+        std::cerr << '\n';
+    }
+}
+
+void logger::write_prefix(loglevel level, const char* file, int line, const char* func) {
+    // retrieve accurate time for milliseconds display
+    struct timeval secs;
+    (void)::gettimeofday(&secs, nullptr);
+    int ms = static_cast<int>(std::roundf(secs.tv_usec / 1000.0)) % 1000;
+
+    // create a date/time stamp
+    char dtstamp[20];
+    std::strftime(dtstamp, 20, "%F %T", std::localtime(&secs.tv_sec));
+
+    std::cerr << dtstamp << "." << std::setfill('0') << std::setw(3) << ms << " ";
+    std::cerr << _name << "[" << ::getpid() << "] ";
+    std::cerr << file << ":" << line << " " << func << "() ";
+    std::cerr << '[' << loglevel_desc(level) << "] ";
+}