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Use more idiomatic <int> * <const> for intervals

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This commit is contained in:
Mark McGranaghan 2018-02-09 14:14:25 -08:00
parent 1d272218fd
commit 01a5f6de68
15 changed files with 37 additions and 37 deletions
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4
examples/rate-limiting/rate-limiting.go
View File

@ -24,7 +24,7 @@ func main() {
// This `limiter` channel will receive a value
// every 200 milliseconds. This is the regulator in
// our rate limiting scheme.
limiter := time.Tick(time.Millisecond * 200)
limiter := time.Tick(200 * time.Millisecond)
// By blocking on a receive from the `limiter` channel
// before serving each request, we limit ourselves to
@ -49,7 +49,7 @@ func main() {
// Every 200 milliseconds we'll try to add a new
// value to `burstyLimiter`, up to its limit of 3.
go func() {
for t := range time.Tick(time.Millisecond * 200) {
for t := range time.Tick(200 * time.Millisecond) {
burstyLimiter <- t
}
}()

4
examples/rate-limiting/rate-limiting.hash
View File

@ -1,2 +1,2 @@
b8dbdb8d53386f00ff900fea62db400d962b4834
h9TUTv494TN
edad78bf3b36ddc9bec30b344b8a72be4de90f3b
l4uDE-RCDpa

4
examples/select/select.go
View File

@ -17,11 +17,11 @@ func main() {
// of time, to simulate e.g. blocking RPC operations
// executing in concurrent goroutines.
go func() {
time.Sleep(time.Second * 1)
time.Sleep(1 * time.Second)
c1 <- "one"
}()
go func() {
time.Sleep(time.Second * 2)
time.Sleep(2 * time.Second)
c2 <- "two"
}()

4
examples/select/select.hash
View File

@ -1,2 +1,2 @@
72503557ab54ef765eeba153fe8a3446541dfc5f
Vco7d8Lmhn
8d743edffd7de6bf7bccdf4437f45672b6adc75e
ZdSOPe1Gj13

4
examples/tickers/tickers.go
View File

@ -15,7 +15,7 @@ func main() {
// channel that is sent values. Here we'll use the
// `range` builtin on the channel to iterate over
// the values as they arrive every 500ms.
ticker := time.NewTicker(time.Millisecond * 500)
ticker := time.NewTicker(500 * time.Millisecond)
go func() {
for t := range ticker.C {
fmt.Println("Tick at", t)
@ -25,7 +25,7 @@ func main() {
// Tickers can be stopped like timers. Once a ticker
// is stopped it won't receive any more values on its
// channel. We'll stop ours after 1600ms.
time.Sleep(time.Millisecond * 1600)
time.Sleep(1600 * time.Millisecond)
ticker.Stop()
fmt.Println("Ticker stopped")
}

4
examples/tickers/tickers.hash
View File

@ -1,2 +1,2 @@
5d97b8ebdf36a65f0e92040bae0097f60b79e1ed
MO3ndiv5qR
7dc6447323f493f72aa70952bf3e3f2c6156f82f
Rgc_UDvHv6a

8
examples/timeouts/timeouts.go
View File

@ -15,7 +15,7 @@ func main() {
// after 2s.
c1 := make(chan string, 1)
go func() {
time.Sleep(time.Second * 2)
time.Sleep(2 * time.Second)
c1 <- "result 1"
}()
@ -28,7 +28,7 @@ func main() {
select {
case res := <-c1:
fmt.Println(res)
case <-time.After(time.Second * 1):
case <-time.After(1 * time.Second):
fmt.Println("timeout 1")
}
@ -36,13 +36,13 @@ func main() {
// from `c2` will succeed and we'll print the result.
c2 := make(chan string, 1)
go func() {
time.Sleep(time.Second * 2)
time.Sleep(2 * time.Second)
c2 <- "result 2"
}()
select {
case res := <-c2:
fmt.Println(res)
case <-time.After(time.Second * 3):
case <-time.After(3 * time.Second):
fmt.Println("timeout 2")
}
}

4
examples/timeouts/timeouts.hash
View File

@ -1,2 +1,2 @@
5ea69771a4d4c6286fd587f91e03cd386f77cada
NR2GHXUKeM
93343e1aacb14f818c87732914c29ba57afab245
MgcfA-xpJO9

2
examples/timers/timers.go
View File

@ -15,7 +15,7 @@ func main() {
// tell the timer how long you want to wait, and it
// provides a channel that will be notified at that
// time. This timer will wait 2 seconds.
timer1 := time.NewTimer(time.Second * 2)
timer1 := time.NewTimer(2 * time.Second)
// The `<-timer1.C` blocks on the timer's channel `C`
// until it sends a value indicating that the timer

4
examples/timers/timers.hash
View File

@ -1,2 +1,2 @@
a5b44952d93152ba6bfdb100ea30cd8446cad47e
6fSHrYxpMu
e10c601ab3b702dfcea728c1edb31673561484b5
pybl9hRvJq2

6
public/rate-limiting
View File

@ -43,7 +43,7 @@ channels, and <a href="tickers">tickers</a>.</p>
</td>
<td class="code leading">
<a href="http://play.golang.org/p/h9TUTv494TN"><img title="Run code" src="play.png" class="run" /></a>
<a href="http://play.golang.org/p/l4uDE-RCDpa"><img title="Run code" src="play.png" class="run" /></a>
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
</pre></div>
@ -104,7 +104,7 @@ our rate limiting scheme.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">limiter</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Tick</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span> <span class="o">*</span> <span class="mi">200</span><span class="p">)</span>
<div class="highlight"><pre> <span class="nx">limiter</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Tick</span><span class="p">(</span><span class="mi">200</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
</pre></div>
</td>
@ -169,7 +169,7 @@ value to <code>burstyLimiter</code>, up to its limit of 3.</p>
<td class="code leading">
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
<span class="k">for</span> <span class="nx">t</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Tick</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span> <span class="o">*</span> <span class="mi">200</span><span class="p">)</span> <span class="p">{</span>
<span class="k">for</span> <span class="nx">t</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Tick</span><span class="p">(</span><span class="mi">200</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">burstyLimiter</span> <span class="o">&lt;-</span> <span class="nx">t</span>
<span class="p">}</span>
<span class="p">}()</span>

6
public/select
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@ -41,7 +41,7 @@ select is a powerful feature of Go.</p>
</td>
<td class="code leading">
<a href="http://play.golang.org/p/Vco7d8Lmhn"><img title="Run code" src="play.png" class="run" /></a>
<a href="http://play.golang.org/p/ZdSOPe1Gj13"><img title="Run code" src="play.png" class="run" /></a>
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
</pre></div>
@ -97,11 +97,11 @@ executing in concurrent goroutines.</p>
<td class="code leading">
<div class="highlight"><pre> <span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span> <span class="o">*</span> <span class="mi">1</span><span class="p">)</span>
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="mi">1</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
<span class="nx">c1</span> <span class="o">&lt;-</span> <span class="s">&quot;one&quot;</span>
<span class="p">}()</span>
<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span> <span class="o">*</span> <span class="mi">2</span><span class="p">)</span>
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
<span class="nx">c2</span> <span class="o">&lt;-</span> <span class="s">&quot;two&quot;</span>
<span class="p">}()</span>
</pre></div>

6
public/tickers
View File

@ -43,7 +43,7 @@ periodically until we stop it.</p>
</td>
<td class="code leading">
<a href="http://play.golang.org/p/MO3ndiv5qR"><img title="Run code" src="play.png" class="run" /></a>
<a href="http://play.golang.org/p/Rgc_UDvHv6a"><img title="Run code" src="play.png" class="run" /></a>
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
</pre></div>
@ -85,7 +85,7 @@ the values as they arrive every 500ms.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">ticker</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">NewTicker</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span> <span class="o">*</span> <span class="mi">500</span><span class="p">)</span>
<div class="highlight"><pre> <span class="nx">ticker</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">NewTicker</span><span class="p">(</span><span class="mi">500</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
<span class="k">for</span> <span class="nx">t</span> <span class="o">:=</span> <span class="k">range</span> <span class="nx">ticker</span><span class="p">.</span><span class="nx">C</span> <span class="p">{</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&quot;Tick at&quot;</span><span class="p">,</span> <span class="nx">t</span><span class="p">)</span>
@ -105,7 +105,7 @@ channel. We&rsquo;ll stop ours after 1600ms.</p>
</td>
<td class="code">
<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span> <span class="o">*</span> <span class="mi">1600</span><span class="p">)</span>
<div class="highlight"><pre> <span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="mi">1600</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Millisecond</span><span class="p">)</span>
<span class="nx">ticker</span><span class="p">.</span><span class="nx">Stop</span><span class="p">()</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&quot;Ticker stopped&quot;</span><span class="p">)</span>
<span class="p">}</span>

10
public/timeouts
View File

@ -42,7 +42,7 @@ elegant thanks to channels and <code>select</code>.</p>
</td>
<td class="code leading">
<a href="http://play.golang.org/p/NR2GHXUKeM"><img title="Run code" src="play.png" class="run" /></a>
<a href="http://play.golang.org/p/MgcfA-xpJO9"><img title="Run code" src="play.png" class="run" /></a>
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
</pre></div>
@ -85,7 +85,7 @@ after 2s.</p>
<div class="highlight"><pre> <span class="nx">c1</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span> <span class="o">*</span> <span class="mi">2</span><span class="p">)</span>
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
<span class="nx">c1</span> <span class="o">&lt;-</span> <span class="s">&quot;result 1&quot;</span>
<span class="p">}()</span>
</pre></div>
@ -108,7 +108,7 @@ if the operation takes more than the allowed 1s.</p>
<div class="highlight"><pre> <span class="k">select</span> <span class="p">{</span>
<span class="k">case</span> <span class="nx">res</span> <span class="o">:=</span> <span class="o">&lt;-</span><span class="nx">c1</span><span class="p">:</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">res</span><span class="p">)</span>
<span class="k">case</span> <span class="o">&lt;-</span><span class="nx">time</span><span class="p">.</span><span class="nx">After</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span> <span class="o">*</span> <span class="mi">1</span><span class="p">):</span>
<span class="k">case</span> <span class="o">&lt;-</span><span class="nx">time</span><span class="p">.</span><span class="nx">After</span><span class="p">(</span><span class="mi">1</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">):</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&quot;timeout 1&quot;</span><span class="p">)</span>
<span class="p">}</span>
</pre></div>
@ -126,13 +126,13 @@ from <code>c2</code> will succeed and we&rsquo;ll print the result.</p>
<div class="highlight"><pre> <span class="nx">c2</span> <span class="o">:=</span> <span class="nb">make</span><span class="p">(</span><span class="kd">chan</span> <span class="kt">string</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">go</span> <span class="kd">func</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span> <span class="o">*</span> <span class="mi">2</span><span class="p">)</span>
<span class="nx">time</span><span class="p">.</span><span class="nx">Sleep</span><span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
<span class="nx">c2</span> <span class="o">&lt;-</span> <span class="s">&quot;result 2&quot;</span>
<span class="p">}()</span>
<span class="k">select</span> <span class="p">{</span>
<span class="k">case</span> <span class="nx">res</span> <span class="o">:=</span> <span class="o">&lt;-</span><span class="nx">c2</span><span class="p">:</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">res</span><span class="p">)</span>
<span class="k">case</span> <span class="o">&lt;-</span><span class="nx">time</span><span class="p">.</span><span class="nx">After</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span> <span class="o">*</span> <span class="mi">3</span><span class="p">):</span>
<span class="k">case</span> <span class="o">&lt;-</span><span class="nx">time</span><span class="p">.</span><span class="nx">After</span><span class="p">(</span><span class="mi">3</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">):</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&quot;timeout 2&quot;</span><span class="p">)</span>
<span class="p">}</span>
<span class="p">}</span>

4
public/timers
View File

@ -43,7 +43,7 @@ at <a href="tickers">tickers</a>.</p>
</td>
<td class="code leading">
<a href="http://play.golang.org/p/6fSHrYxpMu"><img title="Run code" src="play.png" class="run" /></a>
<a href="http://play.golang.org/p/pybl9hRvJq2"><img title="Run code" src="play.png" class="run" /></a>
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
</pre></div>
@ -85,7 +85,7 @@ time. This timer will wait 2 seconds.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">timer1</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">NewTimer</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Second</span> <span class="o">*</span> <span class="mi">2</span><span class="p">)</span>
<div class="highlight"><pre> <span class="nx">timer1</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">NewTimer</span><span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Second</span><span class="p">)</span>
</pre></div>
</td>