<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.7"/> <title>ALSA project - the C library reference: /test/timer.c</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/search.js"></script> <script type="text/javascript"> $(document).ready(function() { searchBox.OnSelectItem(0); }); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table 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class="SelectionMark"> </span>Groups</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(10)"><span class="SelectionMark"> </span>Pages</a></div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> <div class="header"> <div class="headertitle"> <div class="title">/test/timer.c</div> </div> </div><!--header--> <div class="contents"> <p><a class="anchor" id="example_test_timer"></a> </p><div class="fragment"><div class="line"><span class="preprocessor">#include <stdio.h></span></div> <div class="line"><span class="preprocessor">#include <stdlib.h></span></div> <div class="line"><span class="preprocessor">#include <string.h></span></div> <div class="line"><span class="preprocessor">#include <sys/time.h></span></div> <div class="line"><span class="preprocessor">#include "../include/asoundlib.h"</span></div> <div class="line"></div> <div class="line"><span class="keywordtype">void</span> show_status(<span class="keywordtype">void</span> *handle)</div> <div class="line">{</div> <div class="line"> <span class="keywordtype">int</span> err;</div> <div class="line"> <a class="code" href="group___timer.html#ga6fe20f2c0d1535e3a200944b1244f855">snd_timer_status_t</a> *status;</div> <div class="line"> </div> <div class="line"> <a name="a0"></a><a class="code" href="group___timer.html#ga6597b8f73b30a3f2bf2aa9f3590b92f2">snd_timer_status_alloca</a>(&status);</div> <div class="line"> <span class="keywordflow">if</span> ((err = <a name="a1"></a><a class="code" href="group___timer.html#gaa78c7089909252ee0ca69f7552fa2804">snd_timer_status</a>(handle, status)) < 0) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"timer status %i (%s)\n"</span>, err, <a name="a2"></a><a class="code" href="group___error.html#ga182bbadf2349e11602bc531e8cf22f7e">snd_strerror</a>(err));</div> <div class="line"> <span class="keywordflow">return</span>;</div> <div class="line"> }</div> <div class="line"> printf(<span class="stringliteral">"STATUS:\n"</span>);</div> <div class="line"> printf(<span class="stringliteral">" resolution = %li\n"</span>, <a name="a3"></a><a class="code" href="group___timer.html#gaaab668cc548b6c4a24236504d63da0a0">snd_timer_status_get_resolution</a>(status));</div> <div class="line"> printf(<span class="stringliteral">" lost = %li\n"</span>, <a name="a4"></a><a class="code" href="group___timer.html#gaa7ad78e8af9855e71d4951147869693b">snd_timer_status_get_lost</a>(status));</div> <div class="line"> printf(<span class="stringliteral">" overrun = %li\n"</span>, <a name="a5"></a><a class="code" href="group___timer.html#gaf3a83c122c2e19059297599d3486c04d">snd_timer_status_get_overrun</a>(status));</div> <div class="line"> printf(<span class="stringliteral">" queue = %li\n"</span>, <a name="a6"></a><a class="code" href="group___timer.html#ga6edb10e32b6b485ecccef73d862ca648">snd_timer_status_get_queue</a>(status));</div> <div class="line">}</div> <div class="line"></div> <div class="line"><span class="keywordtype">void</span> read_loop(<span class="keywordtype">void</span> *handle, <span class="keywordtype">int</span> master_ticks, <span class="keywordtype">int</span> timeout)</div> <div class="line">{</div> <div class="line"> <span class="keywordtype">int</span> count, err;</div> <div class="line"> <span class="keyword">struct </span>pollfd *fds;</div> <div class="line"> <a name="_a7"></a><a class="code" href="structsnd__timer__read__t.html">snd_timer_read_t</a> tr;</div> <div class="line"> </div> <div class="line"> count = <a name="a8"></a><a class="code" href="group___timer.html#gaf035c37343afed7f13c60e950e461cdf">snd_timer_poll_descriptors_count</a>(handle);</div> <div class="line"> fds = calloc(count, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> pollfd));</div> <div class="line"> <span class="keywordflow">if</span> (fds == NULL) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"malloc error\n"</span>);</div> <div class="line"> exit(EXIT_FAILURE);</div> <div class="line"> }</div> <div class="line"> <span class="keywordflow">while</span> (master_ticks-- > 0) {</div> <div class="line"> <span class="keywordflow">if</span> ((err = <a name="a9"></a><a class="code" href="group___timer.html#ga89ec000a41fa7dd1269e332324663f61">snd_timer_poll_descriptors</a>(handle, fds, count)) < 0) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"snd_timer_poll_descriptors error: %s\n"</span>, <a class="code" href="group___error.html#ga182bbadf2349e11602bc531e8cf22f7e">snd_strerror</a>(err));</div> <div class="line"> exit(EXIT_FAILURE);</div> <div class="line"> }</div> <div class="line"> <span class="keywordflow">if</span> ((err = poll(fds, count, timeout)) < 0) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"poll error %i (%s)\n"</span>, err, strerror(err));</div> <div class="line"> exit(EXIT_FAILURE);</div> <div class="line"> }</div> <div class="line"> <span class="keywordflow">if</span> (err == 0) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"timer time out!!\n"</span>);</div> <div class="line"> exit(EXIT_FAILURE);</div> <div class="line"> }</div> <div class="line"> <span class="keywordflow">while</span> (<a name="a10"></a><a class="code" href="group___timer.html#ga724ada94d0bc3564ad77973c0a084682">snd_timer_read</a>(handle, &tr, <span class="keyword">sizeof</span>(tr)) == <span class="keyword">sizeof</span>(tr)) {</div> <div class="line"> printf(<span class="stringliteral">"TIMER: resolution = %uns, ticks = %u\n"</span>,</div> <div class="line"> tr.<a name="a11"></a><a class="code" href="structsnd__timer__read__t.html#a74c2d329a2a2c9c3bc53d5678b0fafe9">resolution</a>, tr.<a name="a12"></a><a class="code" href="structsnd__timer__read__t.html#a6f1deb447c21188ac4590e872358edd9">ticks</a>);</div> <div class="line"> }</div> <div class="line"> }</div> <div class="line"> free(fds);</div> <div class="line">}</div> <div class="line"></div> <div class="line"><span class="keyword">static</span> <span class="keywordtype">void</span> async_callback(<a class="code" href="group___global.html#ga8cd9a1d441e9219ca5f2ff04094c7c6d">snd_async_handler_t</a> *ahandler)</div> <div class="line">{</div> <div class="line"> <a class="code" href="group___timer.html#ga7f514d85bfd93e1e5853a5fded89b668">snd_timer_t</a> *handle = <a name="a13"></a><a class="code" href="group___timer.html#gaa497b2873abd234df7e932ecdefad5e0">snd_async_handler_get_timer</a>(ahandler);</div> <div class="line"> <span class="keywordtype">int</span> *acount = <a name="a14"></a><a class="code" href="group___global.html#gad9c76588a87918901c6273e6bc98a1bc">snd_async_handler_get_callback_private</a>(ahandler);</div> <div class="line"> <a class="code" href="structsnd__timer__read__t.html">snd_timer_read_t</a> tr;</div> <div class="line"> </div> <div class="line"> <span class="keywordflow">while</span> (<a class="code" href="group___timer.html#ga724ada94d0bc3564ad77973c0a084682">snd_timer_read</a>(handle, &tr, <span class="keyword">sizeof</span>(tr)) == <span class="keyword">sizeof</span>(tr)) {</div> <div class="line"> printf(<span class="stringliteral">"TIMER: resolution = %uns, ticks = %u\n"</span>,</div> <div class="line"> tr.<a class="code" href="structsnd__timer__read__t.html#a74c2d329a2a2c9c3bc53d5678b0fafe9">resolution</a>, tr.<a class="code" href="structsnd__timer__read__t.html#a6f1deb447c21188ac4590e872358edd9">ticks</a>);</div> <div class="line"> }</div> <div class="line"> (*acount)++;</div> <div class="line">}</div> <div class="line"></div> <div class="line"><span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[])</div> <div class="line">{</div> <div class="line"> <span class="keywordtype">int</span> idx, err;</div> <div class="line"> <span class="keywordtype">int</span> <span class="keyword">class </span>= <a name="a15"></a><a class="code" href="group___timer.html#ggafcf09894847cdee6925ab6e405c358d9ae7a63ed172c4c38199e4d6b3ed9fd728">SND_TIMER_CLASS_GLOBAL</a>;</div> <div class="line"> <span class="keywordtype">int</span> sclass = <a name="a16"></a><a class="code" href="group___timer.html#ggafcf09894847cdee6925ab6e405c358d9a678ee4a7108ad3653fc49a6fe07ae45f">SND_TIMER_CLASS_NONE</a>;</div> <div class="line"> <span class="keywordtype">int</span> card = 0;</div> <div class="line"> <span class="keywordtype">int</span> device = <a name="a17"></a><a class="code" href="group___timer.html#ga1cda350fb4de9a2f7a137c5649e3793c">SND_TIMER_GLOBAL_SYSTEM</a>;</div> <div class="line"> <span class="keywordtype">int</span> subdevice = 0;</div> <div class="line"> <span class="keywordtype">int</span> list = 0;</div> <div class="line"> <span class="keywordtype">int</span> async = 0;</div> <div class="line"> <span class="keywordtype">int</span> acount = 0;</div> <div class="line"> <a class="code" href="group___timer.html#ga7f514d85bfd93e1e5853a5fded89b668">snd_timer_t</a> *handle;</div> <div class="line"> <a class="code" href="group___timer.html#ga87c7e9656e171a76dada7e7e2da37136">snd_timer_id_t</a> *id;</div> <div class="line"> <a class="code" href="group___timer.html#ga8d2a9e26d1f38ce65160d3cd71a2bce3">snd_timer_info_t</a> *info;</div> <div class="line"> <a class="code" href="group___timer.html#ga3450759fce8e0863ebce3221e82bafca">snd_timer_params_t</a> *params;</div> <div class="line"> <span class="keywordtype">char</span> timername[64];</div> <div class="line"> <a class="code" href="group___global.html#ga8cd9a1d441e9219ca5f2ff04094c7c6d">snd_async_handler_t</a> *ahandler;</div> <div class="line"></div> <div class="line"> <a name="a18"></a><a class="code" href="group___timer.html#gaef1895685cb2f65d1a40cc46fa5a7eb2">snd_timer_id_alloca</a>(&<span class="keywordtype">id</span>);</div> <div class="line"> <a name="a19"></a><a class="code" href="group___timer.html#gafad2100b7f0478b8c3c59f0f4aced23e">snd_timer_info_alloca</a>(&info);</div> <div class="line"> <a name="a20"></a><a class="code" href="group___timer.html#ga2e76b7b6f7fe340b4a06935f080fbbbd">snd_timer_params_alloca</a>(&params);</div> <div class="line"></div> <div class="line"> idx = 1;</div> <div class="line"> <span class="keywordflow">while</span> (idx < argc) {</div> <div class="line"> <span class="keywordflow">if</span> (!strncmp(argv[idx], <span class="stringliteral">"class="</span>, 5)) {</div> <div class="line"> <span class="keyword">class </span>= atoi(argv[idx]+6);</div> <div class="line"> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!strncmp(argv[idx], <span class="stringliteral">"sclass="</span>, 6)) {</div> <div class="line"> sclass = atoi(argv[idx]+7);</div> <div class="line"> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!strncmp(argv[idx], <span class="stringliteral">"card="</span>, 5)) {</div> <div class="line"> card = atoi(argv[idx]+5);</div> <div class="line"> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!strncmp(argv[idx], <span class="stringliteral">"device="</span>, 7)) {</div> <div class="line"> device = atoi(argv[idx]+7);</div> <div class="line"> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!strncmp(argv[idx], <span class="stringliteral">"subdevice="</span>, 10)) {</div> <div class="line"> subdevice = atoi(argv[idx]+10);</div> <div class="line"> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!strcmp(argv[idx], <span class="stringliteral">"list"</span>)) {</div> <div class="line"> list = 1;</div> <div class="line"> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!strcmp(argv[idx], <span class="stringliteral">"async"</span>)) {</div> <div class="line"> async = 1;</div> <div class="line"> }</div> <div class="line"> idx++;</div> <div class="line"> }</div> <div class="line"> <span class="keywordflow">if</span> (<span class="keyword">class</span> == <a name="a21"></a><a class="code" href="group___timer.html#ggafcf09894847cdee6925ab6e405c358d9a532f7292aafb8e4eaa8fce3bb42b7ea1">SND_TIMER_CLASS_SLAVE</a> && sclass == <a name="a22"></a><a class="code" href="group___timer.html#ggad834b328331c3a4a4fb42041e2e61298a93c410a46bba52d680058f0718a32879">SND_TIMER_SCLASS_NONE</a>) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"slave class is not set\n"</span>);</div> <div class="line"> exit(EXIT_FAILURE);</div> <div class="line"> }</div> <div class="line"> <span class="keywordflow">if</span> (list) {</div> <div class="line"> <a class="code" href="group___timer.html#ga279f189051eba2c5e072c30198deb81a">snd_timer_query_t</a> *qhandle;</div> <div class="line"> <span class="keywordflow">if</span> ((err = <a name="a23"></a><a class="code" href="group___timer.html#ga54f6d3838ff4680fcda97952a60376ff">snd_timer_query_open</a>(&qhandle, <span class="stringliteral">"hw"</span>, 0)) < 0) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"snd_timer_query_open error: %s\n"</span>, <a class="code" href="group___error.html#ga182bbadf2349e11602bc531e8cf22f7e">snd_strerror</a>(err));</div> <div class="line"> exit(EXIT_FAILURE);</div> <div class="line"> }</div> <div class="line"> <a name="a24"></a><a class="code" href="group___timer.html#ga93bce2afe5e3f40f9f7adc17339273c4">snd_timer_id_set_class</a>(<span class="keywordtype">id</span>, <a class="code" href="group___timer.html#ggafcf09894847cdee6925ab6e405c358d9a678ee4a7108ad3653fc49a6fe07ae45f">SND_TIMER_CLASS_NONE</a>);</div> <div class="line"> <span class="keywordflow">while</span> (1) {</div> <div class="line"> <span class="keywordflow">if</span> ((err = <a name="a25"></a><a class="code" href="group___timer.html#ga5c10a9b8dc5f4442908fa3d15ab79169">snd_timer_query_next_device</a>(qhandle, <span class="keywordtype">id</span>)) < 0) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"timer next device error: %s\n"</span>, <a class="code" href="group___error.html#ga182bbadf2349e11602bc531e8cf22f7e">snd_strerror</a>(err));</div> <div class="line"> <span class="keywordflow">break</span>;</div> <div class="line"> }</div> <div class="line"> <span class="keywordflow">if</span> (<a name="a26"></a><a class="code" href="group___timer.html#ga42ea98dbaf720519453c0110bd06fb8b">snd_timer_id_get_class</a>(<span class="keywordtype">id</span>) < 0)</div> <div class="line"> <span class="keywordflow">break</span>;</div> <div class="line"> printf(<span class="stringliteral">"Timer device: class %i, sclass %i, card %i, device %i, subdevice %i\n"</span>,</div> <div class="line"> <a class="code" href="group___timer.html#ga42ea98dbaf720519453c0110bd06fb8b">snd_timer_id_get_class</a>(<span class="keywordtype">id</span>),</div> <div class="line"> <a name="a27"></a><a class="code" href="group___timer.html#ga82e2754532fa2b5b28733820eab4d600">snd_timer_id_get_sclass</a>(<span class="keywordtype">id</span>),</div> <div class="line"> <a name="a28"></a><a class="code" href="group___timer.html#ga305324f73fc12e7e42891598613a2d29">snd_timer_id_get_card</a>(<span class="keywordtype">id</span>),</div> <div class="line"> <a name="a29"></a><a class="code" href="group___timer.html#gaa864bb9270989329f8acc86c5aec2093">snd_timer_id_get_device</a>(<span class="keywordtype">id</span>),</div> <div class="line"> <a name="a30"></a><a class="code" href="group___timer.html#ga7f52f12140cd97f267143cbcd0832d02">snd_timer_id_get_subdevice</a>(<span class="keywordtype">id</span>));</div> <div class="line"> }</div> <div class="line"> <a name="a31"></a><a class="code" href="group___timer.html#ga13063464032aae91ab4e72dfdb57cb10">snd_timer_query_close</a>(qhandle);</div> <div class="line"> exit(EXIT_SUCCESS);</div> <div class="line"> }</div> <div class="line"> sprintf(timername, <span class="stringliteral">"hw:CLASS=%i,SCLASS=%i,CARD=%i,DEV=%i,SUBDEV=%i"</span>, <span class="keyword">class</span>, sclass, card, device, subdevice);</div> <div class="line"> <span class="keywordflow">if</span> ((err = <a name="a32"></a><a class="code" href="group___timer.html#ga9fa22f49745d1e383f0d6e5d9e795e2e">snd_timer_open</a>(&handle, timername, <a name="a33"></a><a class="code" href="group___timer.html#gac2c50bf6045560bc13aab81f25b2b740">SND_TIMER_OPEN_NONBLOCK</a>))<0) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"timer open %i (%s)\n"</span>, err, <a class="code" href="group___error.html#ga182bbadf2349e11602bc531e8cf22f7e">snd_strerror</a>(err));</div> <div class="line"> exit(EXIT_FAILURE);</div> <div class="line"> }</div> <div class="line"> printf(<span class="stringliteral">"Using timer class %i, slave class %i, card %i, device %i, subdevice %i\n"</span>, <span class="keyword">class</span>, sclass, card, device, subdevice);</div> <div class="line"> <span class="keywordflow">if</span> ((err = <a name="a34"></a><a class="code" href="group___timer.html#ga608cb266bf1cfd8f3796e6e55a2d5fe8">snd_timer_info</a>(handle, info)) < 0) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"timer info %i (%s)\n"</span>, err, <a class="code" href="group___error.html#ga182bbadf2349e11602bc531e8cf22f7e">snd_strerror</a>(err));</div> <div class="line"> exit(0);</div> <div class="line"> }</div> <div class="line"> printf(<span class="stringliteral">"Timer info:\n"</span>);</div> <div class="line"> printf(<span class="stringliteral">" slave = %s\n"</span>, <a name="a35"></a><a class="code" href="group___timer.html#gaccf0a207b91965e7200355a0daaac6ce">snd_timer_info_is_slave</a>(info) ? <span class="stringliteral">"yes"</span> : <span class="stringliteral">"no"</span>);</div> <div class="line"> printf(<span class="stringliteral">" card = %i\n"</span>, <a name="a36"></a><a class="code" href="group___timer.html#gaddb757aa65e9532ced42ff7e9146ff34">snd_timer_info_get_card</a>(info));</div> <div class="line"> printf(<span class="stringliteral">" id = '%s'\n"</span>, <a name="a37"></a><a class="code" href="group___timer.html#gaf46477b4ca62a7c2bd87926a45ecbd50">snd_timer_info_get_id</a>(info));</div> <div class="line"> printf(<span class="stringliteral">" name = '%s'\n"</span>, <a name="a38"></a><a class="code" href="group___timer.html#ga9360acea37a3351ab9d2c17b7a264395">snd_timer_info_get_name</a>(info));</div> <div class="line"> printf(<span class="stringliteral">" average resolution = %li\n"</span>, <a name="a39"></a><a class="code" href="group___timer.html#ga3b33c3f0af5c93461e9493b0d4a3b81c">snd_timer_info_get_resolution</a>(info));</div> <div class="line"> <a name="a40"></a><a class="code" href="group___timer.html#gac39b36fdcc72cbb05adb909673df04f0">snd_timer_params_set_auto_start</a>(params, 1);</div> <div class="line"> <span class="keywordflow">if</span> (!<a class="code" href="group___timer.html#gaccf0a207b91965e7200355a0daaac6ce">snd_timer_info_is_slave</a>(info)) {</div> <div class="line"> <a name="a41"></a><a class="code" href="group___timer.html#gaa7101edb9ec33fdbbb94e04256388caa">snd_timer_params_set_ticks</a>(params, (1000000000 / <a class="code" href="group___timer.html#ga3b33c3f0af5c93461e9493b0d4a3b81c">snd_timer_info_get_resolution</a>(info)) / 50); <span class="comment">/* 50Hz */</span></div> <div class="line"> <span class="keywordflow">if</span> (<a name="a42"></a><a class="code" href="group___timer.html#ga298418a42230f305c3c4efdf14da3403">snd_timer_params_get_ticks</a>(params) < 1)</div> <div class="line"> <a class="code" href="group___timer.html#gaa7101edb9ec33fdbbb94e04256388caa">snd_timer_params_set_ticks</a>(params, 1);</div> <div class="line"> printf(<span class="stringliteral">"Using %li tick(s)\n"</span>, <a class="code" href="group___timer.html#ga298418a42230f305c3c4efdf14da3403">snd_timer_params_get_ticks</a>(params));</div> <div class="line"> } <span class="keywordflow">else</span> {</div> <div class="line"> <a class="code" href="group___timer.html#gaa7101edb9ec33fdbbb94e04256388caa">snd_timer_params_set_ticks</a>(params, 1);</div> <div class="line"> }</div> <div class="line"> <span class="keywordflow">if</span> ((err = <a name="a43"></a><a class="code" href="group___timer.html#ga3fd358a410688c3aba3e2d69acf027a8">snd_timer_params</a>(handle, params)) < 0) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"timer params %i (%s)\n"</span>, err, <a class="code" href="group___error.html#ga182bbadf2349e11602bc531e8cf22f7e">snd_strerror</a>(err));</div> <div class="line"> exit(0);</div> <div class="line"> }</div> <div class="line"> show_status(handle);</div> <div class="line"> <span class="keywordflow">if</span> (async) {</div> <div class="line"> err = <a name="a44"></a><a class="code" href="group___timer.html#ga076a6bbae3bfdb956b0a1a6ea9daa0a2">snd_async_add_timer_handler</a>(&ahandler, handle, async_callback, &acount);</div> <div class="line"> <span class="keywordflow">if</span> (err < 0) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"unable to add async handler %i (%s)\n"</span>, err, <a class="code" href="group___error.html#ga182bbadf2349e11602bc531e8cf22f7e">snd_strerror</a>(err));</div> <div class="line"> exit(EXIT_FAILURE);</div> <div class="line"> }</div> <div class="line"> }</div> <div class="line"> <span class="keywordflow">if</span> ((err = <a name="a45"></a><a class="code" href="group___timer.html#gafc990117a12e19a729ff10ef217fe2f9">snd_timer_start</a>(handle)) < 0) {</div> <div class="line"> fprintf(stderr, <span class="stringliteral">"timer start %i (%s)\n"</span>, err, <a class="code" href="group___error.html#ga182bbadf2349e11602bc531e8cf22f7e">snd_strerror</a>(err));</div> <div class="line"> exit(EXIT_FAILURE);</div> <div class="line"> }</div> <div class="line"> <span class="keywordflow">if</span> (async) {</div> <div class="line"> <span class="comment">/* because all other work is done in the signal handler,</span></div> <div class="line"><span class="comment"> suspend the process */</span></div> <div class="line"> <span class="keywordflow">while</span> (acount < 25)</div> <div class="line"> sleep(1);</div> <div class="line"> <a name="a46"></a><a class="code" href="group___timer.html#ga6f8147c0679c820a77f98b1dd5b664a5">snd_timer_stop</a>(handle);</div> <div class="line"> } <span class="keywordflow">else</span> {</div> <div class="line"> read_loop(handle, 25, <a class="code" href="group___timer.html#gaccf0a207b91965e7200355a0daaac6ce">snd_timer_info_is_slave</a>(info) ? 10000 : 25);</div> <div class="line"> }</div> <div class="line"> show_status(handle);</div> <div class="line"> <a name="a47"></a><a class="code" href="group___timer.html#ga155e0b5c831a3140f49c04932da9404f">snd_timer_close</a>(handle);</div> <div class="line"> printf(<span class="stringliteral">"Done\n"</span>);</div> <div class="line"> <span class="keywordflow">return</span> EXIT_SUCCESS;</div> <div class="line">}</div> </div><!-- fragment --> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated on Wed Jun 18 2014 05:47:49 for ALSA project - the C library reference by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.7 </small></address> </body> </html>