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	This change brings a change which was done for the 'mc' package to allow for clean repo and have a cleaner github drop in experience.
		
			
				
	
	
		
			104 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			104 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
/*
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 * Minio Cloud Storage, (C) 2016 Minio, Inc.
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *     http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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package cmd
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import (
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	"testing"
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	"time"
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)
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// Test if tree walker go-routine is removed from the pool after timeout
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// and that is available in the pool before the timeout.
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func TestTreeWalkPoolBasic(t *testing.T) {
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	// Create a treeWalkPool
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	tw := newTreeWalkPool(1 * time.Second)
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	// Create sample params
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	params := listParams{
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		bucket: "test-bucket",
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	}
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	// Add a treeWalk to the pool
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	resultCh := make(chan treeWalkResult)
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	endWalkCh := make(chan struct{})
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	tw.Set(params, resultCh, endWalkCh)
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	// Wait for treeWalkPool timeout to happen
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	<-time.After(2 * time.Second)
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	if c1, _ := tw.Release(params); c1 != nil {
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		t.Error("treeWalk go-routine must have been freed")
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	}
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	// Add the treeWalk back to the pool
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	tw.Set(params, resultCh, endWalkCh)
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	// Release the treeWalk before timeout
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	select {
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	case <-time.After(1 * time.Second):
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		break
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	default:
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		if c1, _ := tw.Release(params); c1 == nil {
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			t.Error("treeWalk go-routine got freed before timeout")
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		}
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	}
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}
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// Test if multiple tree walkers for the same listParams are managed as expected by the pool.
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func TestManyWalksSameParam(t *testing.T) {
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	// Create a treeWalkPool.
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	tw := newTreeWalkPool(5 * time.Second)
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	// Create sample params.
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	params := listParams{
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		bucket: "test-bucket",
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	}
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	select {
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	// This timeout is an upper-bound. This is started
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	// before the first treeWalk go-routine's timeout period starts.
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	case <-time.After(5 * time.Second):
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		break
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	default:
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		// Create many treeWalk go-routines for the same params.
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		for i := 0; i < 10; i++ {
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			resultCh := make(chan treeWalkResult)
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			endWalkCh := make(chan struct{})
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			tw.Set(params, resultCh, endWalkCh)
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		}
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		tw.lock.Lock()
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		if walks, ok := tw.pool[params]; ok {
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			if len(walks) != 10 {
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				t.Error("There aren't as many walks as were Set")
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			}
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		}
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		tw.lock.Unlock()
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		for i := 0; i < 10; i++ {
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			tw.lock.Lock()
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			if walks, ok := tw.pool[params]; ok {
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				// Before ith Release we should have 10-i treeWalk go-routines.
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				if 10-i != len(walks) {
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					t.Error("There aren't as many walks as were Set")
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				}
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			}
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			tw.lock.Unlock()
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			tw.Release(params)
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		}
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	}
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}
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