COMPMID-619: Logging interface

Change-Id: I73d1433ee7a682aeabb7540aa2ea1f6564f90aae
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/91775
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/src/core/utils/logging/LoggerRegistry.cpp b/src/core/utils/logging/LoggerRegistry.cpp
new file mode 100644
index 0000000000..99236d25c3
--- /dev/null
+++ b/src/core/utils/logging/LoggerRegistry.cpp
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2017 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "arm_compute/core/utils/logging/LoggerRegistry.h"
+
+#include "arm_compute/core/Error.h"
+#include "support/ToolchainSupport.h"
+
+using namespace arm_compute::logging;
+
+/** Reserved logger used by the library */
+std::set<std::string> LoggerRegistry::_reserved_loggers = { "CORE", "RUNTIME", "GRAPH" };
+
+LoggerRegistry::LoggerRegistry()
+    : _mtx(), _loggers()
+{
+}
+
+LoggerRegistry &LoggerRegistry::get()
+{
+    static LoggerRegistry _instance;
+    return _instance;
+}
+
+void LoggerRegistry::create_logger(const std::string &name, LogLevel log_level, std::vector<std::shared_ptr<Printer>> printers)
+{
+    std::lock_guard<arm_compute::Mutex> lock(_mtx);
+    if((_loggers.find(name) == _loggers.end()) && (_reserved_loggers.find(name) == _reserved_loggers.end()))
+    {
+        _loggers[name] = std::make_shared<Logger>(name, log_level, std::move(printers));
+    }
+}
+
+void LoggerRegistry::remove_logger(const std::string &name)
+{
+    std::lock_guard<arm_compute::Mutex> lock(_mtx);
+    if(_loggers.find(name) != _loggers.end())
+    {
+        _loggers.erase(name);
+    }
+}
+
+std::shared_ptr<Logger> LoggerRegistry::logger(const std::string &name)
+{
+    std::lock_guard<arm_compute::Mutex> lock(_mtx);
+    return (_loggers.find(name) != _loggers.end()) ? _loggers[name] : nullptr;
+}
+
+void LoggerRegistry::create_reserved_loggers(LogLevel log_level, std::vector<std::shared_ptr<Printer>> printers)
+{
+    std::lock_guard<arm_compute::Mutex> lock(_mtx);
+    for(const auto &r : _reserved_loggers)
+    {
+        if(_loggers.find(r) == _loggers.end())
+        {
+            _loggers[r] = std::make_shared<Logger>(r, log_level, printers);
+        }
+    }
+}