swift详解之十五------------NSThread线程同步锁

NSThread线程同步锁

NSThread

NSLock

NSCondition

<code class="hljs cs has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">var</span> total = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">100</span> <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//总票数</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">var</span> w1 = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>  <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//窗口1卖出票数</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">var</span> w2 = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>   <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//窗口2卖出票数</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">var</span> isSell = <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">true</span>  <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//是否出售</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">var</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">lock</span>:NSLock?
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">var</span> condition:NSCondition?</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li></ul>

<code class="hljs objectivec has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"> lock = NSLock()
condition = NSCondition()
<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//setTicketValue()</span>
let thread1 = <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSThread</span>(target: <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span>, selector: <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"run"</span>, object: <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">nil</span>)
thread1<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.name</span> = <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"thread-1"</span>
thread1<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.start</span>()

let thread2 = <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSThread</span>(target: <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span>, selector: <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"run"</span>, object: <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">nil</span>)
thread2<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.name</span> = <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"thread-2"</span>
thread2<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.start</span>()</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li></ul>

<code class="hljs http has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;">

<span class="objectivec" style="box-sizing: border-box;">    func run(){
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">while</span>(isSell){
lock?<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.lock</span>()

<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span>(total><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>){
<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSThread</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.sleepForTimeInterval</span>(<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0.2</span>);

total--
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span>(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSThread</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.currentThread</span>()<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.name</span> == <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"thread-1"</span>)
{
w1++
}<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">else</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span>(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSThread</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.currentThread</span>()<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.name</span> == <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"thread-2"</span>){
w2++
}
<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">dispatch_async</span>(dispatch_get_main_queue()) {

<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.setTicketValue</span>()
}

}<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">else</span>{

<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">dispatch_async</span>(dispatch_get_main_queue()) {

<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.totalTicks</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.text</span> = <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"票卖完啦"</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span><span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.isSell</span> = <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">false</span>
}

}

lock?<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.unlock</span>()
}
}</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li><li style="box-sizing: border-box; padding: 0px 5px;">29</li><li style="box-sizing: border-box; padding: 0px 5px;">30</li><li style="box-sizing: border-box; padding: 0px 5px;">31</li><li style="box-sizing: border-box; padding: 0px 5px;">32</li><li style="box-sizing: border-box; padding: 0px 5px;">33</li><li style="box-sizing: border-box; padding: 0px 5px;">34</li></ul>