github.com/eh-steve/goloader@v0.0.0-20240111193454-90ff3cfdae39/iface.go (about)

     1  package goloader
     2  
     3  import "unsafe"
     4  
     5  // Mutual exclusion locks.  In the uncontended case,
     6  // as fast as spin locks (just a few user-level instructions),
     7  // but on the contention path they sleep in the kernel.
     8  // A zeroed Mutex is unlocked (no need to initialize each lock).
     9  type mutex struct {
    10  	// Futex-based impl treats it as uint32 key,
    11  	// while sema-based impl as M* waitm.
    12  	// Used to be a union, but unions break precise GC.
    13  	key uintptr
    14  }
    15  
    16  //go:linkname lock runtime.lock
    17  func lock(l *mutex)
    18  
    19  //go:linkname unlock runtime.unlock
    20  func unlock(l *mutex)
    21  
    22  //go:linkname atomicstorep runtime.atomicstorep
    23  func atomicstorep(ptr unsafe.Pointer, new unsafe.Pointer)