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taskmap.go
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taskmap.go
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package core
type TaskMap struct {
RWMutex
_map map[string]*Task
}
func NewTaskMap() (t *TaskMap) {
t = &TaskMap{
_map: make(map[string]*Task),
}
t.RWMutex.Init("TaskMap")
return t
}
//--------task accessor methods-------
func (tm *TaskMap) Len() (length int, err error) {
read_lock, err := tm.RLockNamed("Len")
if err != nil {
return
}
defer tm.RUnlockNamed(read_lock)
length = len(tm._map)
return
}
func (tm *TaskMap) Get(taskid string, lock bool) (task *Task, ok bool, err error) {
if lock {
read_lock, xerr := tm.RLockNamed("Get")
if xerr != nil {
err = xerr
return
}
defer tm.RUnlockNamed(read_lock)
}
task, ok = tm._map[taskid]
return
}
func (tm *TaskMap) GetTasks() (tasks []*Task, err error) {
tasks = []*Task{}
read_lock, err := tm.RLockNamed("GetTasks")
if err != nil {
return
}
defer tm.RUnlockNamed(read_lock)
for _, task := range tm._map {
tasks = append(tasks, task)
}
return
}
func (tm *TaskMap) Delete(taskid string) (task *Task, ok bool) {
tm.LockNamed("Delete")
defer tm.Unlock()
delete(tm._map, taskid) // TODO should get write lock on task first
return
}
func (tm *TaskMap) Add(task *Task) {
tm.LockNamed("Add")
defer tm.Unlock()
tm._map[task.Id] = task // TODO prevent overwriting
return
}