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#2787: add queueSize property to the AsyncChannel

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This commit is contained in:
Günter Obiltschnig
2020-02-04 10:53:01 +01:00
parent 81624a269f
commit c4bdadffb3
2 changed files with 63 additions and 19 deletions
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28
Foundation/include/Poco/AsyncChannel.h
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@@ -50,14 +50,14 @@ public:
void setChannel(Channel::Ptr pChannel);
/// Connects the AsyncChannel to the given target channel.
/// All messages will be forwarded to this channel.
Channel::Ptr getChannel() const;
/// Returns the target channel.
void open();
/// Opens the channel and creates the
/// Opens the channel and creates the
/// background logging thread.
void close();
/// Closes the channel and stops the background
/// logging thread.
@@ -69,7 +69,7 @@ public:
void setProperty(const std::string& name, const std::string& value);
/// Sets or changes a configuration property.
///
/// The "channel" property allows setting the target
/// The "channel" property allows setting the target
/// channel via the LoggingRegistry.
/// The "channel" property is set-only.
///
@@ -82,18 +82,34 @@ public:
/// * highest
///
/// The "priority" property is set-only.
///
/// The "queueSize" property allows to limit the number
/// of messages in the queue. If the queue is full and
/// new messages are logged, these are dropped until the
/// queue has free capacity again. The number of dropped
/// messages is recorded, and a log message indicating the
/// number of dropped messages will be generated when the
/// queue has free capacity again.
/// In addition to an unsigned integer specifying the size,
/// this property can have the values "none" or "unlimited",
/// which disable the queue size limit. A size of 0 also
/// removes the limit.
///
/// The "queueSize" property is set-only.
protected:
~AsyncChannel();
void run();
void setPriority(const std::string& value);
private:
Channel::Ptr _pChannel;
Channel::Ptr _pChannel;
Thread _thread;
FastMutex _threadMutex;
FastMutex _channelMutex;
NotificationQueue _queue;
std::size_t _queueSize = 0;
std::size_t _dropCount = 0;
};