mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-23 10:42:12 +00:00
b3ba1516a7
Bumps codeberg.org/gruf/go-mutexes from 1.3.1 to 1.4.0. --- updated-dependencies: - dependency-name: codeberg.org/gruf/go-mutexes dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
88 lines
2.2 KiB
Go
88 lines
2.2 KiB
Go
package mutexes
|
|
|
|
import (
|
|
"sync"
|
|
"unsafe"
|
|
)
|
|
|
|
// Cond is similar to a sync.Cond{}, but
|
|
// it encompasses the Mutex{} within itself.
|
|
type Cond struct {
|
|
notify notifyList
|
|
sync.Mutex
|
|
}
|
|
|
|
// See: sync.Cond{}.Wait().
|
|
func (c *Cond) Wait() {
|
|
t := runtime_notifyListAdd(&c.notify)
|
|
c.Mutex.Unlock()
|
|
runtime_notifyListWait(&c.notify, t)
|
|
c.Mutex.Lock()
|
|
}
|
|
|
|
// See: sync.Cond{}.Signal().
|
|
func (c *Cond) Signal() { runtime_notifyListNotifyOne(&c.notify) }
|
|
|
|
// See: sync.Cond{}.Broadcast().
|
|
func (c *Cond) Broadcast() { runtime_notifyListNotifyAll(&c.notify) }
|
|
|
|
// RWCond is similar to a sync.Cond{}, but
|
|
// it encompasses the RWMutex{} within itself.
|
|
type RWCond struct {
|
|
notify notifyList
|
|
sync.RWMutex
|
|
}
|
|
|
|
// See: sync.Cond{}.Wait().
|
|
func (c *RWCond) Wait() {
|
|
t := runtime_notifyListAdd(&c.notify)
|
|
c.RWMutex.Unlock()
|
|
runtime_notifyListWait(&c.notify, t)
|
|
c.RWMutex.Lock()
|
|
}
|
|
|
|
// See: sync.Cond{}.Signal().
|
|
func (c *RWCond) Signal() { runtime_notifyListNotifyOne(&c.notify) }
|
|
|
|
// See: sync.Cond{}.Broadcast().
|
|
func (c *RWCond) Broadcast() { runtime_notifyListNotifyAll(&c.notify) }
|
|
|
|
// unused fields left
|
|
// un-named for safety.
|
|
type notifyList struct {
|
|
_ uint32 // wait uint32
|
|
notify uint32 // notify uint32
|
|
_ uintptr // lock mutex
|
|
_ unsafe.Pointer // head *sudog
|
|
_ unsafe.Pointer // tail *sudog
|
|
}
|
|
|
|
// See runtime/sema.go for documentation.
|
|
//
|
|
//go:linkname runtime_notifyListAdd sync.runtime_notifyListAdd
|
|
func runtime_notifyListAdd(l *notifyList) uint32
|
|
|
|
// See runtime/sema.go for documentation.
|
|
//
|
|
//go:linkname runtime_notifyListWait sync.runtime_notifyListWait
|
|
func runtime_notifyListWait(l *notifyList, t uint32)
|
|
|
|
// See runtime/sema.go for documentation.
|
|
//
|
|
//go:linkname runtime_notifyListNotifyOne sync.runtime_notifyListNotifyOne
|
|
func runtime_notifyListNotifyOne(l *notifyList)
|
|
|
|
// See runtime/sema.go for documentation.
|
|
//
|
|
//go:linkname runtime_notifyListNotifyAll sync.runtime_notifyListNotifyAll
|
|
func runtime_notifyListNotifyAll(l *notifyList)
|
|
|
|
// Ensure that sync and runtime agree on size of notifyList.
|
|
//
|
|
//go:linkname runtime_notifyListCheck sync.runtime_notifyListCheck
|
|
func runtime_notifyListCheck(size uintptr)
|
|
func init() {
|
|
var n notifyList
|
|
runtime_notifyListCheck(unsafe.Sizeof(n))
|
|
}
|