rocksdb/thrift/lib/cpp/server/TNonblockingServerObserver.h
Dhruba Borthakur 80c663882a Create leveldb server via Thrift.
Summary:
First draft.
Unit tests pass.

Test Plan: unit tests attached

Reviewers: heyongqiang

Reviewed By: heyongqiang

Differential Revision: https://reviews.facebook.net/D3969
2012-07-07 09:42:39 -07:00

55 lines
1.2 KiB
C++

#ifndef THRIFT_SERVER_TNONBLOCKINGSERVEROBSERVER_H_
#define THRIFT_SERVER_TNONBLOCKINGSERVEROBSERVER_H_ 1
#include <stdint.h>
namespace apache { namespace thrift { namespace server {
class TNonblockingServerObserver {
public:
virtual ~TNonblockingServerObserver() {}
TNonblockingServerObserver() : sampleRate_(0) {}
TNonblockingServerObserver(uint32_t sampleRate) : sampleRate_(sampleRate) {}
class CallTimestamps {
public:
uint64_t readBegin;
uint64_t readEnd;
uint64_t processBegin;
uint64_t processEnd;
uint64_t writeBegin;
uint64_t writeEnd;
CallTimestamps() {
init();
}
void init() {
readBegin = readEnd = 0;
processBegin = processEnd = 0;
writeBegin = writeEnd = 0;
}
};
// Notifications for various events on the TNonblockingServer
virtual void connDropped() = 0;
virtual void taskKilled() = 0;
virtual void callCompleted(const CallTimestamps& runtimes) = 0;
// The observer has to specify a sample rate for callCompleted notifications
inline uint32_t getSampleRate() const {
return sampleRate_;
}
protected:
uint32_t sampleRate_;
};
}}} // apache::thrift::server
#endif