Merge pull request #12427 from Chocobo1/io

Avoid inefficient behavior
5 years ago · 26941a5b02
1 changed files with 5 additions and 3 deletions
--- a/src/base/utils/io.cpp
+++ b/src/base/utils/io.cpp
@ -41,9 +41,11 @@ Utils::IO::FileDeviceOutputIterator::FileDeviceOutputIterator(QFileDevice &devic
				@@ -41,9 +41,11 @@ Utils::IO::FileDeviceOutputIterator::FileDeviceOutputIterator(QFileDevice &devic

 Utils::IO::FileDeviceOutputIterator::~FileDeviceOutputIterator()
 {
-    if (m_device->error() == QFileDevice::NoError)
-        m_device->write(*m_buffer);
-    m_buffer->clear();
+    if (m_buffer.use_count() == 1) {
+        if (m_device->error() == QFileDevice::NoError)
+            m_device->write(*m_buffer);
+        m_buffer->clear();
+    }
 }

 Utils::IO::FileDeviceOutputIterator &Utils::IO::FileDeviceOutputIterator::operator=(const char c)