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Added truncating to IPC log buffer queue #4651

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When the IPC log buffer is too large, the oldest log line is removed
when a new log line is added.
This commit is contained in:
Nick Bolton 2015-05-15 15:04:16 +01:00
parent aac59fbf7e
commit e60b3a6feb
2 changed files with 9 additions and 4 deletions
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9
src/lib/ipc/IpcLogOutputter.cpp
View File

@ -116,7 +116,12 @@ void
IpcLogOutputter::appendBuffer(const String& text)
{
ArchMutexLock lock(m_bufferMutex);
m_buffer.push(text);
if (m_buffer.size() >= m_bufferMaxSize) {
// if the queue is exceeds size limit,
// throw away the oldest item
m_buffer.pop_front();
}
m_buffer.push_back(text);
}
void
@ -182,7 +187,7 @@ IpcLogOutputter::getChunk(size_t count)
for (size_t i = 0; i < count; i++) {
chunk.append(m_buffer.front());
chunk.append("\n");
m_buffer.pop();
m_buffer.pop_front();
}
return chunk;
}

4
src/lib/ipc/IpcLogOutputter.h
View File

@ -22,7 +22,7 @@
#include "arch/IArchMultithread.h"
#include "base/ILogOutputter.h"
#include <queue>
#include <deque>
class IpcServer;
class Event;
@ -87,7 +87,7 @@ private:
void appendBuffer(const String& text);
private:
typedef std::queue<String> Buffer;
typedef std::deque<String> Buffer;
IpcServer& m_ipcServer;
Buffer m_buffer;