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<h1>rtptimeutilities.h</h1><a href="rtptimeutilities_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"></span>
<a name="l00003"></a>00003 <span class="comment"> This file is a part of JRTPLIB</span>
<a name="l00004"></a>00004 <span class="comment"> Copyright (c) 1999-2007 Jori Liesenborgs</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment"> Contact: jori.liesenborgs@gmail.com</span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment"> This library was developed at the "Expertisecentrum Digitale Media"</span>
<a name="l00009"></a>00009 <span class="comment"> (http://www.edm.uhasselt.be), a research center of the Hasselt University</span>
<a name="l00010"></a>00010 <span class="comment"> (http://www.uhasselt.be). The library is based upon work done for </span>
<a name="l00011"></a>00011 <span class="comment"> my thesis at the School for Knowledge Technology (Belgium/The Netherlands).</span>
<a name="l00012"></a>00012 <span class="comment"></span>
<a name="l00013"></a>00013 <span class="comment"> Permission is hereby granted, free of charge, to any person obtaining a</span>
<a name="l00014"></a>00014 <span class="comment"> copy of this software and associated documentation files (the "Software"),</span>
<a name="l00015"></a>00015 <span class="comment"> to deal in the Software without restriction, including without limitation</span>
<a name="l00016"></a>00016 <span class="comment"> the rights to use, copy, modify, merge, publish, distribute, sublicense,</span>
<a name="l00017"></a>00017 <span class="comment"> and/or sell copies of the Software, and to permit persons to whom the</span>
<a name="l00018"></a>00018 <span class="comment"> Software is furnished to do so, subject to the following conditions:</span>
<a name="l00019"></a>00019 <span class="comment"></span>
<a name="l00020"></a>00020 <span class="comment"> The above copyright notice and this permission notice shall be included</span>
<a name="l00021"></a>00021 <span class="comment"> in all copies or substantial portions of the Software.</span>
<a name="l00022"></a>00022 <span class="comment"></span>
<a name="l00023"></a>00023 <span class="comment"> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS</span>
<a name="l00024"></a>00024 <span class="comment"> OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span>
<a name="l00025"></a>00025 <span class="comment"> FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL</span>
<a name="l00026"></a>00026 <span class="comment"> THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span>
<a name="l00027"></a>00027 <span class="comment"> LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span>
<a name="l00028"></a>00028 <span class="comment"> FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS</span>
<a name="l00029"></a>00029 <span class="comment"> IN THE SOFTWARE.</span>
<a name="l00030"></a>00030 <span class="comment"></span>
<a name="l00031"></a>00031 <span class="comment">*/</span>
<a name="l00032"></a>00032
<a name="l00037"></a>00037 <span class="preprocessor">#ifndef RTPTIMEUTILITIES_H</span>
<a name="l00038"></a>00038 <span class="preprocessor"></span>
<a name="l00039"></a>00039 <span class="preprocessor">#define RTPTIMEUTILITIES_H</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span>
<a name="l00041"></a>00041 <span class="preprocessor">#include "rtpconfig.h"</span>
<a name="l00042"></a>00042 <span class="preprocessor">#include "rtptypes.h"</span>
<a name="l00043"></a>00043 <span class="preprocessor">#ifndef WIN32</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="preprocessor"> #include <sys/time.h></span>
<a name="l00045"></a>00045 <span class="preprocessor"> #include <time.h></span>
<a name="l00046"></a>00046 <span class="preprocessor">#else</span>
<a name="l00047"></a>00047 <span class="preprocessor"></span><span class="preprocessor"> #ifndef _WIN32_WCE</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span><span class="preprocessor"> #include <sys/timeb.h></span>
<a name="l00049"></a>00049 <span class="preprocessor"> #endif // _WIN32_WINCE</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span><span class="preprocessor">#endif // WIN32</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span>
<a name="l00052"></a>00052 <span class="preprocessor">#define RTP_NTPTIMEOFFSET 2208988800UL</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span>
<a name="l00058"></a><a class="code" href="classRTPNTPTime.html">00058</a> <span class="keyword">class </span><a class="code" href="classRTPNTPTime.html" title="This is a simple wrapper for the most significant word (MSW) and least significant...">RTPNTPTime</a>
<a name="l00059"></a>00059 {
<a name="l00060"></a>00060 <span class="keyword">public</span>:
<a name="l00062"></a><a class="code" href="classRTPNTPTime.html#5233ed6f4f90b5664694d6e16425859f">00062</a> <a class="code" href="classRTPNTPTime.html#5233ed6f4f90b5664694d6e16425859f" title="This constructor creates and instance with MSW m and LSW l.">RTPNTPTime</a>(uint32_t m,uint32_t l) { msw = m ; lsw = l; }
<a name="l00063"></a>00063
<a name="l00065"></a><a class="code" href="classRTPNTPTime.html#356c807fdec2fa2b9776803c2c5380a3">00065</a> uint32_t <a class="code" href="classRTPNTPTime.html#356c807fdec2fa2b9776803c2c5380a3" title="Returns the most significant word.">GetMSW</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> msw; }
<a name="l00066"></a>00066
<a name="l00068"></a><a class="code" href="classRTPNTPTime.html#ea4cdbbd4509acc113bb9419cb9b2215">00068</a> uint32_t <a class="code" href="classRTPNTPTime.html#ea4cdbbd4509acc113bb9419cb9b2215" title="Returns the least significant word.">GetLSW</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> lsw; }
<a name="l00069"></a>00069 <span class="keyword">private</span>:
<a name="l00070"></a>00070 uint32_t msw,lsw;
<a name="l00071"></a>00071 };
<a name="l00072"></a>00072
<a name="l00077"></a><a class="code" href="classRTPTime.html">00077</a> <span class="keyword">class </span><a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a>
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 <span class="keyword">public</span>:
<a name="l00084"></a>00084 <span class="keyword">static</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> <a class="code" href="classRTPTime.html#de5ba279f814edb9894ced694845fdad" title="Returns an RTPTime instance representing the current wallclock time.">CurrentTime</a>();
<a name="l00085"></a>00085
<a name="l00087"></a>00087 <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classRTPTime.html#0ccccb0a8cb82bc4591911dbf17e5f0b" title="This function waits the amount of time specified in delay.">Wait</a>(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &delay);
<a name="l00088"></a>00088
<a name="l00090"></a>00090 <a class="code" href="classRTPTime.html#6451bdaeed0911f7da659b30f0c7c6ac" title="Creates an RTPTime instance representing t, which is expressed in units of seconds...">RTPTime</a>(<span class="keywordtype">double</span> t);
<a name="l00091"></a>00091
<a name="l00097"></a>00097 <a class="code" href="classRTPTime.html#6451bdaeed0911f7da659b30f0c7c6ac" title="Creates an RTPTime instance representing t, which is expressed in units of seconds...">RTPTime</a>(<a class="code" href="classRTPNTPTime.html" title="This is a simple wrapper for the most significant word (MSW) and least significant...">RTPNTPTime</a> ntptime);
<a name="l00098"></a>00098
<a name="l00100"></a><a class="code" href="classRTPTime.html#2f140f54f0f81e473dadd82de0ce9b7e">00100</a> <a class="code" href="classRTPTime.html#2f140f54f0f81e473dadd82de0ce9b7e" title="Creates an instance corresponding to seconds and microseconds.">RTPTime</a>(uint32_t seconds,uint32_t microseconds) { sec = seconds; microsec = microseconds; }
<a name="l00101"></a>00101
<a name="l00103"></a><a class="code" href="classRTPTime.html#3afd8c210166f72a6f4cf578a8eae72f">00103</a> uint32_t <a class="code" href="classRTPTime.html#3afd8c210166f72a6f4cf578a8eae72f" title="Returns the number of seconds stored in this instance.">GetSeconds</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> sec; }
<a name="l00104"></a>00104
<a name="l00106"></a><a class="code" href="classRTPTime.html#f617cd122c7b4bf13d042cf4cfc7d2e0">00106</a> uint32_t <a class="code" href="classRTPTime.html#f617cd122c7b4bf13d042cf4cfc7d2e0" title="Returns the number of microseconds stored in this instance.">GetMicroSeconds</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> microsec; }
<a name="l00107"></a>00107
<a name="l00109"></a><a class="code" href="classRTPTime.html#d6074c69ab1c15e6631c1f9c2100e253">00109</a> <span class="keywordtype">double</span> <a class="code" href="classRTPTime.html#d6074c69ab1c15e6631c1f9c2100e253" title="Returns the time stored in this instance, expressed in units of seconds.">GetDouble</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> (((<span class="keywordtype">double</span>)sec)+(((<span class="keywordtype">double</span>)microsec)/1000000.0)); }
<a name="l00110"></a>00110
<a name="l00112"></a>00112 <a class="code" href="classRTPNTPTime.html" title="This is a simple wrapper for the most significant word (MSW) and least significant...">RTPNTPTime</a> <a class="code" href="classRTPTime.html#1aff29f2ae0d890b75266cd9fe5bd0e5" title="Returns the NTP time corresponding to the time stored in this instance.">GetNTPTime</a>() <span class="keyword">const</span>;
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &operator-=(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &t);
<a name="l00115"></a>00115 <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &operator+=(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &t);
<a name="l00116"></a>00116 <span class="keywordtype">bool</span> operator<(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &t) <span class="keyword">const</span>;
<a name="l00117"></a>00117 <span class="keywordtype">bool</span> operator>(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &t) <span class="keyword">const</span>;
<a name="l00118"></a>00118 <span class="keywordtype">bool</span> operator<=(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &t) <span class="keyword">const</span>;
<a name="l00119"></a>00119 <span class="keywordtype">bool</span> operator>=(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &t) <span class="keyword">const</span>;
<a name="l00120"></a>00120 <span class="keyword">private</span>:
<a name="l00121"></a>00121 <span class="preprocessor">#if (defined(WIN32) || defined(_WIN32_WCE))</span>
<a name="l00122"></a>00122 <span class="preprocessor"></span> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> __int64 CalculateMicroseconds(<span class="keywordtype">unsigned</span> __int64 performancecount,<span class="keywordtype">unsigned</span> __int64 performancefrequency);
<a name="l00123"></a>00123 <span class="preprocessor">#endif // WIN32 || _WIN32_WCE</span>
<a name="l00124"></a>00124 <span class="preprocessor"></span>
<a name="l00125"></a>00125 uint32_t sec,microsec;
<a name="l00126"></a>00126 };
<a name="l00127"></a>00127
<a name="l00128"></a><a class="code" href="classRTPTime.html#6451bdaeed0911f7da659b30f0c7c6ac">00128</a> <span class="keyword">inline</span> <a class="code" href="classRTPTime.html#6451bdaeed0911f7da659b30f0c7c6ac" title="Creates an RTPTime instance representing t, which is expressed in units of seconds...">RTPTime::RTPTime</a>(<span class="keywordtype">double</span> t)
<a name="l00129"></a>00129 {
<a name="l00130"></a>00130 sec = (uint32_t)t;
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keywordtype">double</span> t2 = t-((double)sec);
<a name="l00133"></a>00133 t2 *= 1000000.0;
<a name="l00134"></a>00134 microsec = (uint32_t)t2;
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136
<a name="l00137"></a><a class="code" href="classRTPTime.html#cc289a420936279bac4cf60ac9704389">00137</a> <span class="keyword">inline</span> <a class="code" href="classRTPTime.html#6451bdaeed0911f7da659b30f0c7c6ac" title="Creates an RTPTime instance representing t, which is expressed in units of seconds...">RTPTime::RTPTime</a>(<a class="code" href="classRTPNTPTime.html" title="This is a simple wrapper for the most significant word (MSW) and least significant...">RTPNTPTime</a> ntptime)
<a name="l00138"></a>00138 {
<a name="l00139"></a>00139 <span class="keywordflow">if</span> (ntptime.<a class="code" href="classRTPNTPTime.html#356c807fdec2fa2b9776803c2c5380a3" title="Returns the most significant word.">GetMSW</a>() < RTP_NTPTIMEOFFSET)
<a name="l00140"></a>00140 {
<a name="l00141"></a>00141 sec = 0;
<a name="l00142"></a>00142 microsec = 0;
<a name="l00143"></a>00143 }
<a name="l00144"></a>00144 <span class="keywordflow">else</span>
<a name="l00145"></a>00145 {
<a name="l00146"></a>00146 sec = ntptime.<a class="code" href="classRTPNTPTime.html#356c807fdec2fa2b9776803c2c5380a3" title="Returns the most significant word.">GetMSW</a>() - RTP_NTPTIMEOFFSET;
<a name="l00147"></a>00147
<a name="l00148"></a>00148 <span class="keywordtype">double</span> x = (double)ntptime.<a class="code" href="classRTPNTPTime.html#ea4cdbbd4509acc113bb9419cb9b2215" title="Returns the least significant word.">GetLSW</a>();
<a name="l00149"></a>00149 x /= (65536.0*65536.0);
<a name="l00150"></a>00150 x *= 1000000.0;
<a name="l00151"></a>00151 microsec = (uint32_t)x;
<a name="l00152"></a>00152 }
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154
<a name="l00155"></a>00155 <span class="preprocessor">#if (defined(WIN32) || defined(_WIN32_WCE))</span>
<a name="l00156"></a>00156 <span class="preprocessor"></span>
<a name="l00157"></a>00157 <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> __int64 RTPTime::CalculateMicroseconds(<span class="keywordtype">unsigned</span> __int64 performancecount,<span class="keywordtype">unsigned</span> __int64 performancefrequency)
<a name="l00158"></a>00158 {
<a name="l00159"></a>00159 <span class="keywordtype">unsigned</span> __int64 f = performancefrequency;
<a name="l00160"></a>00160 <span class="keywordtype">unsigned</span> __int64 a = performancecount;
<a name="l00161"></a>00161 <span class="keywordtype">unsigned</span> __int64 b = a/f;
<a name="l00162"></a>00162 <span class="keywordtype">unsigned</span> __int64 c = a%f; <span class="comment">// a = b*f+c => (a*1000000)/f = b*1000000+(c*1000000)/f</span>
<a name="l00163"></a>00163
<a name="l00164"></a>00164 <span class="keywordflow">return</span> b*1000000ui64+(c*1000000ui64)/f;
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166
<a name="l00167"></a>00167 <span class="keyword">inline</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> <a class="code" href="classRTPTime.html#de5ba279f814edb9894ced694845fdad" title="Returns an RTPTime instance representing the current wallclock time.">RTPTime::CurrentTime</a>()
<a name="l00168"></a>00168 {
<a name="l00169"></a>00169 <span class="keyword">static</span> <span class="keywordtype">int</span> inited = 0;
<a name="l00170"></a>00170 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> __int64 microseconds, initmicroseconds;
<a name="l00171"></a>00171 <span class="keyword">static</span> LARGE_INTEGER performancefrequency;
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <span class="keywordtype">unsigned</span> __int64 emulate_microseconds, microdiff;
<a name="l00174"></a>00174 SYSTEMTIME systemtime;
<a name="l00175"></a>00175 FILETIME filetime;
<a name="l00176"></a>00176
<a name="l00177"></a>00177 LARGE_INTEGER performancecount;
<a name="l00178"></a>00178
<a name="l00179"></a>00179 QueryPerformanceCounter(&performancecount);
<a name="l00180"></a>00180
<a name="l00181"></a>00181 <span class="keywordflow">if</span>(!inited){
<a name="l00182"></a>00182 inited = 1;
<a name="l00183"></a>00183 QueryPerformanceFrequency(&performancefrequency);
<a name="l00184"></a>00184 GetSystemTime(&systemtime);
<a name="l00185"></a>00185 SystemTimeToFileTime(&systemtime,&filetime);
<a name="l00186"></a>00186 microseconds = ( ((<span class="keywordtype">unsigned</span> __int64)(filetime.dwHighDateTime) << 32) + (<span class="keywordtype">unsigned</span> __int64)(filetime.dwLowDateTime) ) / 10ui64;
<a name="l00187"></a>00187 microseconds-= 11644473600000000ui64; <span class="comment">// EPOCH</span>
<a name="l00188"></a>00188 initmicroseconds = CalculateMicroseconds(performancecount.QuadPart, performancefrequency.QuadPart);
<a name="l00189"></a>00189 }
<a name="l00190"></a>00190
<a name="l00191"></a>00191 emulate_microseconds = CalculateMicroseconds(performancecount.QuadPart, performancefrequency.QuadPart);
<a name="l00192"></a>00192
<a name="l00193"></a>00193 microdiff = emulate_microseconds - initmicroseconds;
<a name="l00194"></a>00194
<a name="l00195"></a>00195 <span class="keywordflow">return</span> <a class="code" href="classRTPTime.html#6451bdaeed0911f7da659b30f0c7c6ac" title="Creates an RTPTime instance representing t, which is expressed in units of seconds...">RTPTime</a>((uint32_t)((microseconds + microdiff) / 1000000ui64),((uint32_t)((microseconds + microdiff) % 1000000ui64)));
<a name="l00196"></a>00196 }
<a name="l00197"></a>00197
<a name="l00198"></a>00198 <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classRTPTime.html#0ccccb0a8cb82bc4591911dbf17e5f0b" title="This function waits the amount of time specified in delay.">RTPTime::Wait</a>(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &delay)
<a name="l00199"></a>00199 {
<a name="l00200"></a>00200 DWORD t;
<a name="l00201"></a>00201
<a name="l00202"></a>00202 t = ((DWORD)delay.<a class="code" href="classRTPTime.html#3afd8c210166f72a6f4cf578a8eae72f" title="Returns the number of seconds stored in this instance.">GetSeconds</a>())*1000+(((DWORD)delay.<a class="code" href="classRTPTime.html#f617cd122c7b4bf13d042cf4cfc7d2e0" title="Returns the number of microseconds stored in this instance.">GetMicroSeconds</a>())/1000);
<a name="l00203"></a>00203 Sleep(t);
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <span class="keyword">class </span>RTPTimeInitializer
<a name="l00207"></a>00207 {
<a name="l00208"></a>00208 <span class="keyword">public</span>:
<a name="l00209"></a>00209 RTPTimeInitializer();
<a name="l00210"></a>00210 <span class="keywordtype">void</span> Dummy() { dummy++; }
<a name="l00211"></a>00211 <span class="keyword">private</span>:
<a name="l00212"></a>00212 <span class="keywordtype">int</span> dummy;
<a name="l00213"></a>00213 };
<a name="l00214"></a>00214
<a name="l00215"></a>00215 <span class="keyword">extern</span> RTPTimeInitializer timeinit;
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="preprocessor">#else // unix style</span>
<a name="l00218"></a>00218 <span class="preprocessor"></span>
<a name="l00219"></a><a class="code" href="classRTPTime.html#de5ba279f814edb9894ced694845fdad">00219</a> <span class="keyword">inline</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> <a class="code" href="classRTPTime.html#de5ba279f814edb9894ced694845fdad" title="Returns an RTPTime instance representing the current wallclock time.">RTPTime::CurrentTime</a>()
<a name="l00220"></a>00220 {
<a name="l00221"></a>00221 <span class="keyword">struct </span>timeval tv;
<a name="l00222"></a>00222
<a name="l00223"></a>00223 gettimeofday(&tv,0);
<a name="l00224"></a>00224 <span class="keywordflow">return</span> <a class="code" href="classRTPTime.html#6451bdaeed0911f7da659b30f0c7c6ac" title="Creates an RTPTime instance representing t, which is expressed in units of seconds...">RTPTime</a>((uint32_t)tv.tv_sec,(uint32_t)tv.tv_usec);
<a name="l00225"></a>00225 }
<a name="l00226"></a>00226
<a name="l00227"></a><a class="code" href="classRTPTime.html#0ccccb0a8cb82bc4591911dbf17e5f0b">00227</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classRTPTime.html#0ccccb0a8cb82bc4591911dbf17e5f0b" title="This function waits the amount of time specified in delay.">RTPTime::Wait</a>(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &delay)
<a name="l00228"></a>00228 {
<a name="l00229"></a>00229 <span class="keyword">struct </span>timespec req,rem;
<a name="l00230"></a>00230
<a name="l00231"></a>00231 req.tv_sec = (time_t)delay.sec;
<a name="l00232"></a>00232 req.tv_nsec = ((<span class="keywordtype">long</span>)delay.microsec)*1000;
<a name="l00233"></a>00233 nanosleep(&req,&rem);
<a name="l00234"></a>00234 }
<a name="l00235"></a>00235
<a name="l00236"></a>00236 <span class="preprocessor">#endif // WIN32</span>
<a name="l00237"></a>00237 <span class="preprocessor"></span>
<a name="l00238"></a>00238 <span class="keyword">inline</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &RTPTime::operator-=(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &t)
<a name="l00239"></a>00239 {
<a name="l00240"></a>00240 sec -= t.sec;
<a name="l00241"></a>00241 <span class="keywordflow">if</span> (t.microsec > microsec)
<a name="l00242"></a>00242 {
<a name="l00243"></a>00243 sec--;
<a name="l00244"></a>00244 microsec += 1000000;
<a name="l00245"></a>00245 }
<a name="l00246"></a>00246 microsec -= t.microsec;
<a name="l00247"></a>00247 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00248"></a>00248 }
<a name="l00249"></a>00249
<a name="l00250"></a>00250 <span class="keyword">inline</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &RTPTime::operator+=(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &t)
<a name="l00251"></a>00251 {
<a name="l00252"></a>00252 sec += t.sec;
<a name="l00253"></a>00253 microsec += t.microsec;
<a name="l00254"></a>00254 <span class="keywordflow">if</span> (microsec >= 1000000)
<a name="l00255"></a>00255 {
<a name="l00256"></a>00256 sec++;
<a name="l00257"></a>00257 microsec -= 1000000;
<a name="l00258"></a>00258 }
<a name="l00259"></a>00259 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00260"></a>00260 }
<a name="l00261"></a>00261
<a name="l00262"></a><a class="code" href="classRTPTime.html#1aff29f2ae0d890b75266cd9fe5bd0e5">00262</a> <span class="keyword">inline</span> <a class="code" href="classRTPNTPTime.html" title="This is a simple wrapper for the most significant word (MSW) and least significant...">RTPNTPTime</a> <a class="code" href="classRTPTime.html#1aff29f2ae0d890b75266cd9fe5bd0e5" title="Returns the NTP time corresponding to the time stored in this instance.">RTPTime::GetNTPTime</a>()<span class="keyword"> const</span>
<a name="l00263"></a>00263 <span class="keyword"></span>{
<a name="l00264"></a>00264 uint32_t msw = sec+RTP_NTPTIMEOFFSET;
<a name="l00265"></a>00265 uint32_t lsw;
<a name="l00266"></a>00266 <span class="keywordtype">double</span> x;
<a name="l00267"></a>00267
<a name="l00268"></a>00268 x = microsec/1000000.0;
<a name="l00269"></a>00269 x *= (65536.0*65536.0);
<a name="l00270"></a>00270 lsw = (uint32_t)x;
<a name="l00271"></a>00271
<a name="l00272"></a>00272 <span class="keywordflow">return</span> <a class="code" href="classRTPNTPTime.html" title="This is a simple wrapper for the most significant word (MSW) and least significant...">RTPNTPTime</a>(msw,lsw);
<a name="l00273"></a>00273 }
<a name="l00274"></a>00274
<a name="l00275"></a>00275 <span class="keyword">inline</span> <span class="keywordtype">bool</span> RTPTime::operator<(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &t)<span class="keyword"> const</span>
<a name="l00276"></a>00276 <span class="keyword"></span>{
<a name="l00277"></a>00277 <span class="keywordflow">if</span> (sec < t.sec)
<a name="l00278"></a>00278 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00279"></a>00279 <span class="keywordflow">if</span> (sec > t.sec)
<a name="l00280"></a>00280 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00281"></a>00281 <span class="keywordflow">if</span> (microsec < t.microsec)
<a name="l00282"></a>00282 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00283"></a>00283 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00284"></a>00284 }
<a name="l00285"></a>00285
<a name="l00286"></a>00286 <span class="keyword">inline</span> <span class="keywordtype">bool</span> RTPTime::operator>(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &t)<span class="keyword"> const</span>
<a name="l00287"></a>00287 <span class="keyword"></span>{
<a name="l00288"></a>00288 <span class="keywordflow">if</span> (sec > t.sec)
<a name="l00289"></a>00289 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00290"></a>00290 <span class="keywordflow">if</span> (sec < t.sec)
<a name="l00291"></a>00291 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00292"></a>00292 <span class="keywordflow">if</span> (microsec > t.microsec)
<a name="l00293"></a>00293 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00294"></a>00294 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00295"></a>00295 }
<a name="l00296"></a>00296
<a name="l00297"></a>00297 <span class="keyword">inline</span> <span class="keywordtype">bool</span> RTPTime::operator<=(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &t)<span class="keyword"> const</span>
<a name="l00298"></a>00298 <span class="keyword"></span>{
<a name="l00299"></a>00299 <span class="keywordflow">if</span> (sec < t.sec)
<a name="l00300"></a>00300 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00301"></a>00301 <span class="keywordflow">if</span> (sec > t.sec)
<a name="l00302"></a>00302 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00303"></a>00303 <span class="keywordflow">if</span> (microsec <= t.microsec)
<a name="l00304"></a>00304 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00305"></a>00305 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00306"></a>00306 }
<a name="l00307"></a>00307
<a name="l00308"></a>00308 <span class="keyword">inline</span> <span class="keywordtype">bool</span> RTPTime::operator>=(<span class="keyword">const</span> <a class="code" href="classRTPTime.html" title="This class is used to specify wallclock time, delay intervals etc.">RTPTime</a> &t)<span class="keyword"> const</span>
<a name="l00309"></a>00309 <span class="keyword"></span>{
<a name="l00310"></a>00310 <span class="keywordflow">if</span> (sec > t.sec)
<a name="l00311"></a>00311 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00312"></a>00312 <span class="keywordflow">if</span> (sec < t.sec)
<a name="l00313"></a>00313 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00314"></a>00314 <span class="keywordflow">if</span> (microsec >= t.microsec)
<a name="l00315"></a>00315 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00316"></a>00316 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00317"></a>00317 }
<a name="l00318"></a>00318 <span class="preprocessor">#endif // RTPTIMEUTILITIES_H</span>
<a name="l00319"></a>00319 <span class="preprocessor"></span>
</pre></div></div>
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