Sha256: e447aced6aee16f633b01d87bd8a5282eea75727339afff6d00403b840b16280
Contents?: true
Size: 1.05 KB
Versions: 16
Compression:
Stored size: 1.05 KB
Contents
//go:build go1.18 && (linux || darwin || freebsd || openbsd || netbsd || solaris)
// +build go1.18
// +build linux darwin freebsd openbsd netbsd solaris
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
package blockblob
import (
"fmt"
"os"
"syscall"
)
// mmb is a memory mapped buffer
type mmb []byte
// newMMB creates a new memory mapped buffer with the specified size
func newMMB(size int64) (mmb, error) {
prot, flags := syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_ANON|syscall.MAP_PRIVATE
addr, err := syscall.Mmap(-1, 0, int(size), prot, flags)
if err != nil {
return nil, os.NewSyscallError("Mmap", err)
}
return mmb(addr), nil
}
// delete cleans up the memory mapped buffer
func (m *mmb) delete() {
err := syscall.Munmap(*m)
*m = nil
if err != nil {
// if we get here, there is likely memory corruption.
// please open an issue https://github.com/Azure/azure-sdk-for-go/issues
panic(fmt.Sprintf("Munmap error: %v", err))
}
}
Version data entries
16 entries across 16 versions & 1 rubygems