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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style>
body {
background: black;
color: rgb(80, 80, 80);
}
body, pre, #legend span {
font-family: Menlo, monospace;
font-weight: bold;
}
#topbar {
background: black;
position: fixed;
top: 0; left: 0; right: 0;
height: 42px;
border-bottom: 1px solid rgb(80, 80, 80);
}
#content {
margin-top: 50px;
}
#nav, #legend {
float: left;
margin-left: 10px;
}
#legend {
margin-top: 12px;
}
#nav {
margin-top: 10px;
}
#legend span {
margin: 0 5px;
}
.cov0 { color: rgb(192, 0, 0) }
.cov1 { color: rgb(128, 128, 128) }
.cov2 { color: rgb(116, 140, 131) }
.cov3 { color: rgb(104, 152, 134) }
.cov4 { color: rgb(92, 164, 137) }
.cov5 { color: rgb(80, 176, 140) }
.cov6 { color: rgb(68, 188, 143) }
.cov7 { color: rgb(56, 200, 146) }
.cov8 { color: rgb(44, 212, 149) }
.cov9 { color: rgb(32, 224, 152) }
.cov10 { color: rgb(20, 236, 155) }
</style>
</head>
<body>
<div id="topbar">
<div id="nav">
<select id="files">
<option value="file0">github.com/jaeoheeail/godispatch/godispatch.go (100.0%)</option>
<option value="file1">github.com/jaeoheeail/godispatch/worker.go (100.0%)</option>
</select>
</div>
<div id="legend">
<span>not tracked</span>
<span class="cov0">not covered</span>
<span class="cov8">covered</span>
</div>
</div>
<div id="content">
<pre class="file" id="file0" style="display: none">package godispatch
import (
"io/ioutil"
"log"
"os"
"sync"
)
// Dispatcher dispatches work to worker
type Dispatcher struct {
sync.RWMutex
MasterWorkerMap map[Master]*Worker
WorkHandler Handler
debug bool // Set to true for godispatch debug info
}
// NewDispatcher returns a Dispatcher instance
func NewDispatcher(h interface{}, debugOption ...bool) *Dispatcher <span class="cov8" title="1">{
d := &Dispatcher{
MasterWorkerMap: make(map[Master]*Worker),
WorkHandler: h.(Handler),
debug: false, // Default is false
}
log.SetOutput(ioutil.Discard)
if len(debugOption) > 0 </span><span class="cov8" title="1">{
d.debug = debugOption[0]
}</span>
<span class="cov8" title="1">if d.debug == true </span><span class="cov8" title="1">{
log.SetOutput(os.Stdout)
}</span>
<span class="cov8" title="1">log.Println("Dispatcher Created")
return d</span>
}
// Dispatch work to worker that matches WorkID
func (d *Dispatcher) Dispatch(w Work, m Master) <span class="cov8" title="1">{
d.Lock()
_, ok := d.MasterWorkerMap[m]
if ok == false </span><span class="cov8" title="1">{ // Master is not in map
d.MasterWorkerMap[m] = NewWorker()
d.MasterWorkerMap[m].Start(d)
}</span>
<span class="cov8" title="1">workChannel := d.MasterWorkerMap[m].WorkChannel
d.Unlock()
// Send work to worker's Work Channel
workChannel <- w</span>
}
// Close closes all the workers' WorkChannels
func (d *Dispatcher) Close() <span class="cov8" title="1">{
log.Println("Closing Work Channels...")
d.RLock()
for _, worker := range d.MasterWorkerMap </span><span class="cov8" title="1">{
close(worker.WorkChannel) // dispatcher closes worker's channel
worker.QuitChan <- true // sends worker quit signal
}</span>
<span class="cov8" title="1">d.RUnlock()
log.Println("All Work Channel(s) Closed")</span>
}
</pre>
<pre class="file" id="file1" style="display: none">package godispatch
import (
"log"
"sync"
)
// Worker has a work channel to receive work
type Worker struct {
WorkChannel chan Work
QuitChan chan bool
}
// NewWorker returns a Worker instance
func NewWorker() *Worker <span class="cov8" title="1">{
return &Worker{
WorkChannel: make(chan Work),
QuitChan: make(chan bool),
}
}</span>
// Start receiving work from work channel and begin processing
func (w *Worker) Start(d *Dispatcher) <span class="cov8" title="1">{
var wg sync.WaitGroup
go func() </span><span class="cov8" title="1">{
for </span><span class="cov8" title="1">{
select </span>{
<span class="cov8" title="1">case work := <-w.WorkChannel:
if work != nil </span><span class="cov8" title="1">{
log.Printf("Worker: Received Work %v\n", work)
wg.Add(1)
go func() </span><span class="cov8" title="1">{
defer wg.Done()
d.WorkHandler.Handle(work)
}</span>()
<span class="cov8" title="1">wg.Wait()</span>
}
<span class="cov8" title="1">case <-w.QuitChan:
log.Println("Worker: Received Quit Signal")
return</span>
}
}
}()
}
</pre>
</div>
</body>
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