github.com/matrixorigin/matrixone@v1.2.0/pkg/perfcounter/update.go (about)

     1  // Copyright 2023 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 perfcounter
    16  
    17  import (
    18  	"context"
    19  )
    20  
    21  func Update(ctx context.Context, fn func(*CounterSet), extraCounterSets ...*CounterSet) {
    22  	var counterSets CounterSets
    23  
    24  	// from context
    25  	v := ctx.Value(CtxKeyCounters)
    26  	if v != nil {
    27  		counterSets = v.(CounterSets)
    28  		for set := range counterSets {
    29  			fn(set)
    30  		}
    31  	}
    32  
    33  	// extra
    34  	for _, set := range extraCounterSets {
    35  		if set == nil {
    36  			continue
    37  		}
    38  		if counterSets != nil {
    39  			if _, ok := counterSets[set]; ok {
    40  				continue
    41  			}
    42  		}
    43  		fn(set)
    44  	}
    45  
    46  	// global
    47  	if _, ok := counterSets[globalCounterSet]; !ok {
    48  		fn(globalCounterSet)
    49  	}
    50  
    51  	// per table TODO
    52  }