Initial commit

2026-08-28 13:16:40 +00:00 · 2021-12-01 19:29:27 +10:00
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+/**
+Lightweight profiler library for c++
+Copyright(C) 2016-2019  Sergey Yagovtsev, Victor Zarubkin
+
+Licensed under either of
+    * MIT license (LICENSE.MIT or http://opensource.org/licenses/MIT)
+    * Apache License, Version 2.0, (LICENSE.APACHE or http://www.apache.org/licenses/LICENSE-2.0)
+at your option.
+
+The MIT License
+    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.
+
+
+The Apache License, Version 2.0 (the "License");
+    You may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+**/
+
+#include "nonscoped_block.h"
+#include <cstring>
+#include <cstdlib>
+
+NonscopedBlock::NonscopedBlock(const profiler::BaseBlockDescriptor* _desc, const char* _runtimeName, bool)
+    : profiler::Block(_desc, _runtimeName, false), m_runtimeName(nullptr)
+{
+
+}
+
+NonscopedBlock::~NonscopedBlock()
+{
+    // Actually destructor should not be invoked because StackBuffer do manual memory management
+
+    m_end = m_begin; // to restrict profiler::Block to invoke profiler::endBlock() on destructor.
+    free(m_runtimeName);
+}
+
+void NonscopedBlock::copyname()
+{
+    // Here we need to copy m_name to m_runtimeName to ensure that
+    // it would be alive to the moment we will serialize the block
+
+    if ((m_status & profiler::ON) == 0)
+        return;
+
+    if (*m_name != 0)
+    {
+        auto len = strlen(m_name);
+        m_runtimeName = static_cast<char*>(malloc(len + 1));
+
+        // memcpy should be faster than strncpy because we know
+        // actual bytes number and both strings have the same size
+        memcpy(m_runtimeName, m_name, len);
+
+        m_runtimeName[len] = 0;
+        m_name = m_runtimeName;
+    }
+    else
+    {
+        m_name = "";
+    }
+}
+
+void NonscopedBlock::destroy()
+{
+    // free memory used by m_runtimeName
+    free(m_runtimeName);
+    m_name = "";
+}