gotosocial/vendor/modernc.org/libc/nopthreads.go
kim ed46224573
Add SQLite support, fix un-thread-safe DB caches, small performance f… (#172)
* Add SQLite support, fix un-thread-safe DB caches, small performance fixes

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* add SQLite licenses to README

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* appease the linter, and fix my dumbass-ery

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* make requested changes

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* add back comment

Signed-off-by: kim (grufwub) <grufwub@gmail.com>
2021-08-29 16:41:41 +02:00

34 lines
773 B
Go

// Copyright 2021 The Libc Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build windows darwin linux,arm linux,s390x
package libc // import "modernc.org/libc"
import (
"sync/atomic"
"unsafe"
)
var errno0 int32 // Temp errno for NewTLS
type TLS struct {
ID int32
errnop uintptr
reentryGuard int32 // memgrind
stack stackHeader
stackHeaderBalance int32
}
func NewTLS() *TLS {
id := atomic.AddInt32(&tid, 1)
t := &TLS{ID: id, errnop: uintptr(unsafe.Pointer(&errno0))}
if memgrind {
atomic.AddInt32(&tlsBalance, 1)
}
t.errnop = t.Alloc(int(unsafe.Sizeof(int32(0))))
*(*int32)(unsafe.Pointer(t.errnop)) = 0
return t
}