vitess.io/vitess@v0.16.2/go/vt/vtorc/inst/replication_thread_state.go (about)

     1  /*
     2     Copyright 2019 GitHub Inc.
     3  
     4     Licensed under the Apache License, Version 2.0 (the "License");
     5     you may not use this file except in compliance with the License.
     6     You may obtain a copy of the License at
     7  
     8         http://www.apache.org/licenses/LICENSE-2.0
     9  
    10     Unless required by applicable law or agreed to in writing, software
    11     distributed under the License is distributed on an "AS IS" BASIS,
    12     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13     See the License for the specific language governing permissions and
    14     limitations under the License.
    15  */
    16  
    17  package inst
    18  
    19  import "vitess.io/vitess/go/mysql"
    20  
    21  type ReplicationThreadState int
    22  
    23  const (
    24  	ReplicationThreadStateNoThread ReplicationThreadState = -1
    25  	ReplicationThreadStateStopped  ReplicationThreadState = 0
    26  	ReplicationThreadStateRunning  ReplicationThreadState = 1
    27  	ReplicationThreadStateOther    ReplicationThreadState = 2
    28  )
    29  
    30  func ReplicationThreadStateFromStatus(status string) ReplicationThreadState {
    31  	switch status {
    32  	case "No":
    33  		return ReplicationThreadStateStopped
    34  	case "Yes":
    35  		return ReplicationThreadStateRunning
    36  	}
    37  	return ReplicationThreadStateOther
    38  }
    39  
    40  // ReplicationThreadStateFromReplicationState gets the replication thread state from replication state
    41  // TODO: Merge these two into one
    42  func ReplicationThreadStateFromReplicationState(state mysql.ReplicationState) ReplicationThreadState {
    43  	switch state {
    44  	case mysql.ReplicationStateStopped:
    45  		return ReplicationThreadStateStopped
    46  	case mysql.ReplicationStateRunning:
    47  		return ReplicationThreadStateRunning
    48  	case mysql.ReplicationStateConnecting:
    49  		return ReplicationThreadStateOther
    50  	default:
    51  		return ReplicationThreadStateNoThread
    52  	}
    53  }
    54  
    55  func (replicationThreadState *ReplicationThreadState) IsRunning() bool {
    56  	return *replicationThreadState == ReplicationThreadStateRunning
    57  }
    58  func (replicationThreadState *ReplicationThreadState) IsStopped() bool {
    59  	return *replicationThreadState == ReplicationThreadStateStopped
    60  }
    61  func (replicationThreadState *ReplicationThreadState) Exists() bool {
    62  	return *replicationThreadState != ReplicationThreadStateNoThread
    63  }