foundationdb/fdbserver/FDBExecHelper.actor.h

71 lines
2.4 KiB
C++

#pragma once
#if defined(NO_INTELLISENSE) && !defined(FDBSERVER_EXEC_HELPER_ACTOR_G_H)
#define FDBSERVER_EXEC_HELPER_ACTOR_G_H
#include "fdbserver/FDBExecHelper.actor.g.h"
#elif !defined(FDBSERVER_EXEC_HELPER_ACTOR_H)
#define FDBSERVER_EXEC_HELPER_ACTOR_H
#include <string>
#include <vector>
#include <map>
#include "flow/Arena.h"
#include "flow/flow.h"
#include "flow/actorcompiler.h"
// execute/snapshot command takes two arguments: <param1> <param2>
// param1 - represents the command type/name
// param2 - takes a binary path followed by a set of arguments in the following
// format <binary-path>:<key1=val1>,<key2=val2>...
// this class will abstract the format and give functions to get various pieces
// of information
class ExecCmdValueString {
public: // ctor & dtor
ExecCmdValueString() {}
explicit ExecCmdValueString(StringRef cmdValueString);
public: // interfaces
StringRef getBinaryPath();
VectorRef<StringRef> getBinaryArgs();
StringRef getBinaryArgValue(StringRef key);
void setCmdValueString(StringRef cmdValueString);
StringRef getCmdValueString(void);
public: // helper functions
void dbgPrint();
private: // functions
void parseCmdValue();
private: // data
Standalone<StringRef> cmdValueString;
Standalone<VectorRef<StringRef>> binaryArgs;
StringRef binaryPath;
std::map<StringRef, StringRef> keyValueMap;
};
// FIXME: move this function to a common location
// spawns a process pointed by `binPath` and the arguments provided at `paramList`,
// if the process spawned takes more than `maxWaitTime` then it will be killed
// if isSync is set to true then the process will be synchronously executed
ACTOR Future<int> spawnProcess(std::string binPath, std::vector<std::string> paramList, double maxWaitTime, bool isSync);
// helper to run all the work related to running the exec command
ACTOR Future<int> execHelper(ExecCmdValueString* execArg, std::string folder, std::string role);
// returns true if the execUID op is in progress
bool isExecOpInProgress(UID execUID);
// adds the execUID op to the list of ops in progress
void setExecOpInProgress(UID execUID);
// clears the execUID op from the list of ops in progress
void clearExecOpInProgress(UID execUID);
// registers a non-stopped TLog instance
void registerTLog(UID uid);
// unregisters a stopped TLog instance
void unregisterTLog(UID uid);
// checks if there is any non-stopped TLog instance
bool isTLogInSameNode();
#endif