mirror of https://github.com/citusdata/citus.git
95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
/*-------------------------------------------------------------------------
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*
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* worker_transaction.h
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* Type and function declarations used in performing transactions across
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* workers.
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*
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* Copyright (c) Citus Data, Inc.
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef WORKER_TRANSACTION_H
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#define WORKER_TRANSACTION_H
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#include "distributed/worker_manager.h"
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#include "storage/lockdefs.h"
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/*
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* TargetWorkerSet is used for determining the type of workers that a command
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* is targeted to.
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*/
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typedef enum TargetWorkerSet
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{
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/*
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* All the active primary nodes in the metadata which have metadata
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* except the coordinator
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*/
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NON_COORDINATOR_METADATA_NODES,
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/*
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* All the active primary nodes in the metadata except the coordinator
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*/
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NON_COORDINATOR_NODES,
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/*
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* All active primary nodes in the metadata
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*/
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ALL_SHARD_NODES,
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/*
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* All the active primary nodes in the metadata which have metadata
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* (includes the coodinator if it is added)
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*/
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METADATA_NODES
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} TargetWorkerSet;
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/* Functions declarations for worker transactions */
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extern List * GetWorkerTransactions(void);
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extern List * TargetWorkerSetNodeList(TargetWorkerSet targetWorkerSet, LOCKMODE lockMode);
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extern void SendCommandToWorker(const char *nodeName, int32 nodePort, const
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char *command);
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extern void SendCommandToWorkersAsUser(TargetWorkerSet targetWorkerSet,
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const char *nodeUser, const char *command);
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extern void SendCommandToWorkerAsUser(const char *nodeName, int32 nodePort,
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const char *nodeUser, const char *command);
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extern bool SendOptionalCommandListToWorkerOutsideTransaction(const char *nodeName,
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int32 nodePort,
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const char *nodeUser,
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List *commandList);
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extern bool SendOptionalMetadataCommandListToWorkerInCoordinatedTransaction(const
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char *nodeName,
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int32 nodePort,
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const char *
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nodeUser,
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List *
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commandList);
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extern void SendCommandToWorkersWithMetadata(const char *command);
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extern void SendCommandToWorkersWithMetadataViaSuperUser(const char *command);
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extern void SendBareCommandListToMetadataWorkers(List *commandList);
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extern void EnsureNoModificationsHaveBeenDone(void);
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extern void SendCommandListToWorkerOutsideTransaction(const char *nodeName,
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int32 nodePort,
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const char *nodeUser,
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List *commandList);
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extern void SendMetadataCommandListToWorkerListInCoordinatedTransaction(
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List *workerNodeList,
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const char *
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nodeUser,
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List *commandList);
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extern void SendCommandToWorkersOptionalInParallel(TargetWorkerSet targetWorkerSet,
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const char *command,
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const char *user);
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void SendCommandToWorkersInParallel(TargetWorkerSet targetWorkerSet,
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const char *command, const char *user);
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extern void RemoveWorkerTransaction(const char *nodeName, int32 nodePort);
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/* helper functions for worker transactions */
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extern bool IsWorkerTransactionActive(void);
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extern bool IsWorkerTheCurrentNode(WorkerNode *workerNode);
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#endif /* WORKER_TRANSACTION_H */
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