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Merge pull request #12750 from ptabor/20210306-mlock
--experimental-memory-mlock support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| // Copyright 2021 The etcd Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
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| //go:build windows | ||
| // +build windows | ||
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| package etcdserver | ||
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|
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| import ( | ||
| "errors" | ||
| ) | ||
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| // MlockAll prevents current and future mmaped memory areas from being swapped out. | ||
| func MlockAll() error { | ||
| return errors.New("Mlockall is supported only on UNIX systems.") | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| // Copyright 2021 The etcd Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos | ||
| // +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos | ||
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| package etcdserver | ||
|
|
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| import ( | ||
| "fmt" | ||
|
|
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| "golang.org/x/sys/unix" | ||
| ) | ||
|
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| // MlockAll prevents current and future mmaped memory areas from being swapped out. | ||
| func MlockAll() error { | ||
| err := unix.Mlockall(unix.MCL_FUTURE | unix.MCL_CURRENT) | ||
| if err != nil { | ||
| return fmt.Errorf("cannot mlockAll: %v", err) | ||
| } | ||
| return nil | ||
| } |
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