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jobmap.go
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jobmap.go
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package core
import (
"fmt"
"github.com/MG-RAST/AWE/lib/rwmutex"
)
//"fmt"
type JobMap struct {
rwmutex.RWMutex
_map map[string]*Job
}
func NewJobMap() (t *JobMap) {
t = &JobMap{
_map: make(map[string]*Job),
}
t.RWMutex.Init("JobMap")
return t
}
//--------job accessor methods-------
func (jm *JobMap) Len() (length int, err error) {
read_lock, err := jm.RLockNamed("Len")
if err != nil {
return
}
defer jm.RUnlockNamed(read_lock)
length = len(jm._map)
return
}
func (jm *JobMap) Get(jobid string, lock bool) (job *Job, ok bool, err error) {
if lock {
read_lock, xerr := jm.RLockNamed("Get")
if xerr != nil {
err = xerr
return
}
defer jm.RUnlockNamed(read_lock)
}
job, ok = jm._map[jobid]
return
}
func (jm *JobMap) Add(job *Job) (err error) {
err = jm.LockNamed("JobMap/Add")
if err != nil {
return
}
defer jm.Unlock()
_, ok := jm._map[job.Id]
if ok {
err = fmt.Errorf("(JobMap/Add) %s already in JobMap", job.Id)
return
}
jm._map[job.Id] = job // TODO prevent overwriting
return
}
func (jm *JobMap) Delete(jobid string, lock bool) (err error) {
if lock {
err = jm.LockNamed("Delete")
if err != nil {
return
}
defer jm.Unlock()
}
delete(jm._map, jobid)
return
}
func (jm *JobMap) Get_List(lock bool) (jobs []*Job, err error) {
if lock {
var read_lock rwmutex.ReadLock
read_lock, err = jm.RLockNamed("Get_List")
if err != nil {
return
}
defer jm.RUnlockNamed(read_lock)
}
jobs = []*Job{}
for _, job := range jm._map {
jobs = append(jobs, job)
}
return
}