github.com/matrixorigin/matrixone@v0.7.0/pkg/sql/plan/function/builtin/multi/faultinj.go (about)

     1  // Copyright 2022 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package multi
    16  
    17  import (
    18  	"github.com/matrixorigin/matrixone/pkg/common/moerr"
    19  	"github.com/matrixorigin/matrixone/pkg/container/types"
    20  	"github.com/matrixorigin/matrixone/pkg/container/vector"
    21  	"github.com/matrixorigin/matrixone/pkg/util/fault"
    22  	"github.com/matrixorigin/matrixone/pkg/vm/process"
    23  )
    24  
    25  func EnableFaultInjection(vecs []*vector.Vector, proc *process.Process) (*vector.Vector, error) {
    26  	fault.Enable()
    27  	return proc.AllocBoolScalarVector(true), nil
    28  }
    29  
    30  func DisableFaultInjection(vecs []*vector.Vector, proc *process.Process) (*vector.Vector, error) {
    31  	fault.Disable()
    32  	return proc.AllocBoolScalarVector(true), nil
    33  }
    34  
    35  func AddFaultPoint(vecs []*vector.Vector, proc *process.Process) (*vector.Vector, error) {
    36  	for i := 0; i < 5; i++ {
    37  		if vecs[i].IsScalarNull() || !vecs[i].IsScalar() {
    38  			return nil, moerr.NewInvalidArg(proc.Ctx, "AddFaultPoint", "not scalar")
    39  		}
    40  	}
    41  
    42  	name := vecs[0].GetString(0)
    43  	freq := vecs[1].GetString(0)
    44  	action := vecs[2].GetString(0)
    45  	iarg := vector.GetValueAt[int64](vecs[3], 0)
    46  	sarg := vecs[4].GetString(0)
    47  
    48  	if err := fault.AddFaultPoint(proc.Ctx, name, freq, action, iarg, sarg); err != nil {
    49  		return nil, err
    50  	}
    51  
    52  	return proc.AllocBoolScalarVector(true), nil
    53  }
    54  
    55  func RemoveFaultPoint(vecs []*vector.Vector, proc *process.Process) (*vector.Vector, error) {
    56  	if vecs[0].IsScalarNull() || !vecs[0].IsScalar() {
    57  		return nil, moerr.NewInvalidArg(proc.Ctx, "RemoveFaultPoint", "not scalar")
    58  	}
    59  
    60  	name := vecs[0].GetString(0)
    61  	if err := fault.RemoveFaultPoint(proc.Ctx, name); err != nil {
    62  		return nil, err
    63  	}
    64  	return proc.AllocBoolScalarVector(true), nil
    65  }
    66  
    67  func TriggerFaultPoint(vecs []*vector.Vector, proc *process.Process) (*vector.Vector, error) {
    68  	if vecs[0].IsScalarNull() || !vecs[0].IsScalar() {
    69  		return nil, moerr.NewInvalidArg(proc.Ctx, "TriggerFaultPoint", "not scalar")
    70  	}
    71  
    72  	name := vecs[0].GetString(0)
    73  	iv, _, ok := fault.TriggerFault(name)
    74  	if !ok {
    75  		return proc.AllocScalarNullVector(types.T_int64.ToType()), nil
    76  	}
    77  	return proc.AllocInt64ScalarVector(iv), nil
    78  }