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			38 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			38 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| // Copyright 2015 Light Code Labs, LLC
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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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| // +build !windows,!plan9,!nacl
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| 
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| package caddy
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| 
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| import (
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| 	"fmt"
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| 	"syscall"
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| )
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| 
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| // checkFdlimit issues a warning if the OS limit for
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| // max file descriptors is below a recommended minimum.
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| func checkFdlimit() {
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| 	const min = 8192
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| 
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| 	// Warn if ulimit is too low for production sites
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| 	rlimit := &syscall.Rlimit{}
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| 	err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, rlimit)
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| 	if err == nil && rlimit.Cur < min {
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| 		fmt.Printf("WARNING: File descriptor limit %d is too low for production servers. "+
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| 			"At least %d is recommended. Fix with \"ulimit -n %d\".\n", rlimit.Cur, min, min)
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| 	}
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| 
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| }
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