// Unmaps the shared memory, closes the region and - if the region owns the
// underlying shm object - signals that the shm object can be unlinked
// when its unmapped by all processes.
func (r *region) Close() error {
err := syscall.Munmap(r.bytes)
if err != nil {
rpcLog.Error("Failed to unmap memory: %s", err.Error())
return err
}
err = r.fd.Close()
if err != nil {
rpcLog.Error("Failed to close shared memory handle: %s", err.Error())
return err
}
if r.unlink {
cname := C.CString(r.name)
defer C.free(unsafe.Pointer(cname))
_, err = C.shm_unlink(cname)
if err != nil {
rpcLog.Error("Failed to mark shm block for deletion: %s", err.Error())
return err
}
}
return nil
}
func shm_unlink(name string) error {
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
_, err := C.shm_unlink(cname)
return err
}
func (o Object) Close() error {
if err := o.File.Close(); err != nil {
return err
}
cname := C.CString(o.name)
defer C.free(unsafe.Pointer(cname))
_, err := C.shm_unlink(cname)
return err
}
