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体验新版 GitCode,发现更多精彩内容 >>
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fca5f9fd
编写于
2月 27, 2019
作者:
P
Péter Szilágyi
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电子邮件补丁
差异文件
common/fdlimit: fix macos file descriptors for Go 1.12
上级
38c30f8d
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
73 addition
and
1 deletion
+73
-1
common/fdlimit/fdlimit_darwin.go
common/fdlimit/fdlimit_darwin.go
+71
-0
common/fdlimit/fdlimit_unix.go
common/fdlimit/fdlimit_unix.go
+1
-1
common/fdlimit/fdlimit_windows.go
common/fdlimit/fdlimit_windows.go
+1
-0
未找到文件。
common/fdlimit/fdlimit_darwin.go
0 → 100644
浏览文件 @
fca5f9fd
// Copyright 2019 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package
fdlimit
import
"syscall"
// hardlimit is the number of file descriptors allowed at max by the kernel.
const
hardlimit
=
10240
// Raise tries to maximize the file descriptor allowance of this process
// to the maximum hard-limit allowed by the OS.
// Returns the size it was set to (may differ from the desired 'max')
func
Raise
(
max
uint64
)
(
uint64
,
error
)
{
// Get the current limit
var
limit
syscall
.
Rlimit
if
err
:=
syscall
.
Getrlimit
(
syscall
.
RLIMIT_NOFILE
,
&
limit
);
err
!=
nil
{
return
0
,
err
}
// Try to update the limit to the max allowance
limit
.
Cur
=
limit
.
Max
if
limit
.
Cur
>
max
{
limit
.
Cur
=
max
}
if
err
:=
syscall
.
Setrlimit
(
syscall
.
RLIMIT_NOFILE
,
&
limit
);
err
!=
nil
{
return
0
,
err
}
// MacOS can silently apply further caps, so retrieve the actually set limit
if
err
:=
syscall
.
Getrlimit
(
syscall
.
RLIMIT_NOFILE
,
&
limit
);
err
!=
nil
{
return
0
,
err
}
return
limit
.
Cur
,
nil
}
// Current retrieves the number of file descriptors allowed to be opened by this
// process.
func
Current
()
(
int
,
error
)
{
var
limit
syscall
.
Rlimit
if
err
:=
syscall
.
Getrlimit
(
syscall
.
RLIMIT_NOFILE
,
&
limit
);
err
!=
nil
{
return
0
,
err
}
return
int
(
limit
.
Cur
),
nil
}
// Maximum retrieves the maximum number of file descriptors this process is
// allowed to request for itself.
func
Maximum
()
(
int
,
error
)
{
// Retrieve the maximum allowed by dynamic OS limits
var
limit
syscall
.
Rlimit
if
err
:=
syscall
.
Getrlimit
(
syscall
.
RLIMIT_NOFILE
,
&
limit
);
err
!=
nil
{
return
0
,
err
}
// Cap it to OPEN_MAX (10240) because macos is a special snowflake
if
limit
.
Max
>
hardlimit
{
limit
.
Max
=
hardlimit
}
return
int
(
limit
.
Max
),
nil
}
common/fdlimit/fdlimit_unix.go
浏览文件 @
fca5f9fd
...
...
@@ -14,7 +14,7 @@
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// +build linux
darwin
netbsd openbsd solaris
// +build linux netbsd openbsd solaris
package
fdlimit
...
...
common/fdlimit/fdlimit_windows.go
浏览文件 @
fca5f9fd
...
...
@@ -18,6 +18,7 @@ package fdlimit
import
"fmt"
// hardlimit is the number of file descriptors allowed at max by the kernel.
const
hardlimit
=
16384
// Raise tries to maximize the file descriptor allowance of this process
...
...
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