c2047754c3
Compiler changes:
* Change map assignment to use mapassign and assign value directly.
* Change string iteration to use decoderune, faster for ASCII strings.
* Change makeslice to take int, and use makeslice64 for larger values.
* Add new noverflow field to hmap struct used for maps.
Unresolved problems, to be fixed later:
* Commented out test in go/types/sizes_test.go that doesn't compile.
* Commented out reflect.TestStructOf test for padding after zero-sized field.
Reviewed-on: https://go-review.googlesource.com/35231
gotools/:
Updates for Go 1.8rc1.
* Makefile.am (go_cmd_go_files): Add bug.go.
(s-zdefaultcc): Write defaultPkgConfig.
* Makefile.in: Rebuild.
From-SVN: r244456
32 lines
644 B
Go
32 lines
644 B
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package net
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import "syscall"
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func maxListenerBacklog() int {
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fd, err := open("/proc/sys/net/core/somaxconn")
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if err != nil {
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return syscall.SOMAXCONN
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}
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defer fd.close()
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l, ok := fd.readLine()
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if !ok {
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return syscall.SOMAXCONN
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}
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f := getFields(l)
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n, _, ok := dtoi(f[0])
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if n == 0 || !ok {
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return syscall.SOMAXCONN
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}
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// Linux stores the backlog in a uint16.
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// Truncate number to avoid wrapping.
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// See issue 5030.
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if n > 1<<16-1 {
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n = 1<<16 - 1
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}
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return n
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}
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