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<a href="Signal_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*---------------------------------------------------------------------\</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">| ____ _ __ __ ___ |</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">| |__ / \ / / . \ . \ |</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">| / / \ V /| _/ _/ |</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">| / /__ | | | | | | |</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">| /_____||_| |_| |_| |</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">| |</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">\---------------------------------------------------------------------*/</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#ifndef ZYPP_BASE_SIGNAL_H</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#define ZYPP_BASE_SIGNAL_H</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <csignal></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <iosfwd></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span><a class="code" href="namespacezypp.html">zypp</a></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> { </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00025"></a><span class="lineno"><a class="line" href="classzypp_1_1SignalSaver.html"> 25</a></span>  <span class="keyword">class </span><a class="code" href="classzypp_1_1SignalSaver.html">SignalSaver</a></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  {</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="classzypp_1_1SignalSaver.html#a1db507c6f864572da91b2adf5a8040be"> 28</a></span>  <a class="code" href="classzypp_1_1SignalSaver.html#a1db507c6f864572da91b2adf5a8040be">SignalSaver</a>( <span class="keywordtype">int</span> signum_r, sighandler_t handler_r )</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  : <a class="code" href="classzypp_1_1SignalSaver.html#ae761110ece01a85a39d3b6df2de86b46">_signum</a>( signum_r )</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  { <a class="code" href="classzypp_1_1SignalSaver.html#a0e38755c373ca92d13c050ad66cbb534">_orighandler</a> = ::signal( signum_r, handler_r ); }</div><div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="classzypp_1_1SignalSaver.html#ac44fa6a307eb31209ab258076a55f272"> 31</a></span>  <a class="code" href="classzypp_1_1SignalSaver.html#ac44fa6a307eb31209ab258076a55f272">~SignalSaver</a>()</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  { ::signal( <a class="code" href="classzypp_1_1SignalSaver.html#ae761110ece01a85a39d3b6df2de86b46">_signum</a>, <a class="code" href="classzypp_1_1SignalSaver.html#a0e38755c373ca92d13c050ad66cbb534">_orighandler</a> ); }</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="classzypp_1_1SignalSaver.html#ae761110ece01a85a39d3b6df2de86b46"> 34</a></span>  <span class="keywordtype">int</span> <a class="code" href="classzypp_1_1SignalSaver.html#ae761110ece01a85a39d3b6df2de86b46">_signum</a>;</div><div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="classzypp_1_1SignalSaver.html#a0e38755c373ca92d13c050ad66cbb534"> 35</a></span>  ::sighandler_t <a class="code" href="classzypp_1_1SignalSaver.html#a0e38755c373ca92d13c050ad66cbb534">_orighandler</a>;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  };</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="classzypp_1_1SigprocmaskSaver.html"> 41</a></span>  <span class="keyword">class </span><a class="code" href="classzypp_1_1SigprocmaskSaver.html">SigprocmaskSaver</a></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  {</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="classzypp_1_1SigprocmaskSaver.html#a22a279aaa50c96453243d4862c164e2e"> 45</a></span>  <a class="code" href="classzypp_1_1SigprocmaskSaver.html#a22a279aaa50c96453243d4862c164e2e">SigprocmaskSaver</a>()</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  { ::sigprocmask( SIG_SETMASK, NULL, &<a class="code" href="classzypp_1_1SigprocmaskSaver.html#a760a465482b6ec33862f6074e2a60b71">_origmask</a> ); }</div><div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="classzypp_1_1SigprocmaskSaver.html#a07093d7dc30f68e89101c65e6f7dbe02"> 48</a></span>  <a class="code" href="classzypp_1_1SigprocmaskSaver.html#a07093d7dc30f68e89101c65e6f7dbe02">~SigprocmaskSaver</a>()</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  { ::sigprocmask( SIG_SETMASK, &<a class="code" href="classzypp_1_1SigprocmaskSaver.html#a760a465482b6ec33862f6074e2a60b71">_origmask</a>, NULL ); }</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="classzypp_1_1SigprocmaskSaver.html#a10d8413dfa195511c9f9dd9dc7ee946e"> 52</a></span>  <span class="keywordtype">void</span> <a class="code" href="classzypp_1_1SigprocmaskSaver.html#a10d8413dfa195511c9f9dd9dc7ee946e">block</a>( <span class="keywordtype">int</span> signum_r )</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  {</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  ::sigset_t mask;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  ::sigemptyset( & mask );</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  ::sigaddset( & mask, signum_r );</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  ::sigprocmask( SIG_BLOCK, &mask, NULL );</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div><div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="classzypp_1_1SigprocmaskSaver.html#a25d6a09e3ac9d33702f681a57d248ea0"> 60</a></span>  <span class="keywordtype">void</span> <a class="code" href="classzypp_1_1SigprocmaskSaver.html#a25d6a09e3ac9d33702f681a57d248ea0">unblock</a>( <span class="keywordtype">int</span> signum_r )</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  {</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  ::sigset_t mask;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  ::sigemptyset( & mask );</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  ::sigaddset( & mask, signum_r );</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  ::sigprocmask( SIG_UNBLOCK, &mask, NULL );</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div><div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="classzypp_1_1SigprocmaskSaver.html#a22f4b3e18f176688db261ec7f731bae7"> 68</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classzypp_1_1SigprocmaskSaver.html#a22f4b3e18f176688db261ec7f731bae7">pending</a>( <span class="keywordtype">int</span> signum_r )</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  {</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  ::sigset_t mask;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  ::sigpending( &mask );</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  return ::sigismember( &mask, signum_r );</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div><div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="classzypp_1_1SigprocmaskSaver.html#a69354e491002ab17fb039a4df255dd75"> 75</a></span>  <span class="keywordtype">void</span> <a class="code" href="classzypp_1_1SigprocmaskSaver.html#a69354e491002ab17fb039a4df255dd75">suspend</a>()</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  { ::sigsuspend( &<a class="code" href="classzypp_1_1SigprocmaskSaver.html#a760a465482b6ec33862f6074e2a60b71">_origmask</a> ); }</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="classzypp_1_1SigprocmaskSaver.html#a760a465482b6ec33862f6074e2a60b71"> 78</a></span>  ::sigset_t <a class="code" href="classzypp_1_1SigprocmaskSaver.html#a760a465482b6ec33862f6074e2a60b71">_origmask</a>;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  };</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> } <span class="comment">// namespace zypp</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"></span><span class="preprocessor">#endif // ZYPP_BASE_SIGNAL_H</span></div><div class="ttc" id="classzypp_1_1SignalSaver_html_ae761110ece01a85a39d3b6df2de86b46"><div class="ttname"><a href="classzypp_1_1SignalSaver.html#ae761110ece01a85a39d3b6df2de86b46">zypp::SignalSaver::_signum</a></div><div class="ttdeci">int _signum</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00034">Signal.h:34</a></div></div>
<div class="ttc" id="classzypp_1_1SigprocmaskSaver_html_a10d8413dfa195511c9f9dd9dc7ee946e"><div class="ttname"><a href="classzypp_1_1SigprocmaskSaver.html#a10d8413dfa195511c9f9dd9dc7ee946e">zypp::SigprocmaskSaver::block</a></div><div class="ttdeci">void block(int signum_r)</div><div class="ttdoc">Temporary block signal.</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00052">Signal.h:52</a></div></div>
<div class="ttc" id="classzypp_1_1SigprocmaskSaver_html"><div class="ttname"><a href="classzypp_1_1SigprocmaskSaver.html">zypp::SigprocmaskSaver</a></div><div class="ttdoc">Exception safe sigprocmask save/restore.</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00041">Signal.h:41</a></div></div>
<div class="ttc" id="classzypp_1_1SigprocmaskSaver_html_a07093d7dc30f68e89101c65e6f7dbe02"><div class="ttname"><a href="classzypp_1_1SigprocmaskSaver.html#a07093d7dc30f68e89101c65e6f7dbe02">zypp::SigprocmaskSaver::~SigprocmaskSaver</a></div><div class="ttdeci">~SigprocmaskSaver()</div><div class="ttdoc">Dtor restoring the original sigprocmask.</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00048">Signal.h:48</a></div></div>
<div class="ttc" id="classzypp_1_1SigprocmaskSaver_html_a25d6a09e3ac9d33702f681a57d248ea0"><div class="ttname"><a href="classzypp_1_1SigprocmaskSaver.html#a25d6a09e3ac9d33702f681a57d248ea0">zypp::SigprocmaskSaver::unblock</a></div><div class="ttdeci">void unblock(int signum_r)</div><div class="ttdoc">Temporary unblock signal.</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00060">Signal.h:60</a></div></div>
<div class="ttc" id="classzypp_1_1SignalSaver_html_ac44fa6a307eb31209ab258076a55f272"><div class="ttname"><a href="classzypp_1_1SignalSaver.html#ac44fa6a307eb31209ab258076a55f272">zypp::SignalSaver::~SignalSaver</a></div><div class="ttdeci">~SignalSaver()</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00031">Signal.h:31</a></div></div>
<div class="ttc" id="classzypp_1_1SignalSaver_html_a0e38755c373ca92d13c050ad66cbb534"><div class="ttname"><a href="classzypp_1_1SignalSaver.html#a0e38755c373ca92d13c050ad66cbb534">zypp::SignalSaver::_orighandler</a></div><div class="ttdeci">::sighandler_t _orighandler</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00035">Signal.h:35</a></div></div>
<div class="ttc" id="classzypp_1_1SigprocmaskSaver_html_a69354e491002ab17fb039a4df255dd75"><div class="ttname"><a href="classzypp_1_1SigprocmaskSaver.html#a69354e491002ab17fb039a4df255dd75">zypp::SigprocmaskSaver::suspend</a></div><div class="ttdeci">void suspend()</div><div class="ttdoc">Wait for signals not blocked in original sigprocmask.</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00075">Signal.h:75</a></div></div>
<div class="ttc" id="classzypp_1_1SigprocmaskSaver_html_a22a279aaa50c96453243d4862c164e2e"><div class="ttname"><a href="classzypp_1_1SigprocmaskSaver.html#a22a279aaa50c96453243d4862c164e2e">zypp::SigprocmaskSaver::SigprocmaskSaver</a></div><div class="ttdeci">SigprocmaskSaver()</div><div class="ttdoc">Ctor saving the original sigprocmask.</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00045">Signal.h:45</a></div></div>
<div class="ttc" id="classzypp_1_1SignalSaver_html"><div class="ttname"><a href="classzypp_1_1SignalSaver.html">zypp::SignalSaver</a></div><div class="ttdoc">Exception safe signal handler save/restore.</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00025">Signal.h:25</a></div></div>
<div class="ttc" id="namespacezypp_html"><div class="ttname"><a href="namespacezypp.html">zypp</a></div><div class="ttdoc">Easy-to use interface to the ZYPP dependency resolver.</div><div class="ttdef"><b>Definition:</b> <a href="CodePitfalls_8doc_source.html#l00001">CodePitfalls.doc:1</a></div></div>
<div class="ttc" id="classzypp_1_1SignalSaver_html_a1db507c6f864572da91b2adf5a8040be"><div class="ttname"><a href="classzypp_1_1SignalSaver.html#a1db507c6f864572da91b2adf5a8040be">zypp::SignalSaver::SignalSaver</a></div><div class="ttdeci">SignalSaver(int signum_r, sighandler_t handler_r)</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00028">Signal.h:28</a></div></div>
<div class="ttc" id="classzypp_1_1SigprocmaskSaver_html_a760a465482b6ec33862f6074e2a60b71"><div class="ttname"><a href="classzypp_1_1SigprocmaskSaver.html#a760a465482b6ec33862f6074e2a60b71">zypp::SigprocmaskSaver::_origmask</a></div><div class="ttdeci">::sigset_t _origmask</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00078">Signal.h:78</a></div></div>
<div class="ttc" id="classzypp_1_1SigprocmaskSaver_html_a22f4b3e18f176688db261ec7f731bae7"><div class="ttname"><a href="classzypp_1_1SigprocmaskSaver.html#a22f4b3e18f176688db261ec7f731bae7">zypp::SigprocmaskSaver::pending</a></div><div class="ttdeci">bool pending(int signum_r)</div><div class="ttdoc">Whether signal delivery is pending.</div><div class="ttdef"><b>Definition:</b> <a href="Signal_8h_source.html#l00068">Signal.h:68</a></div></div>
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