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<div class="headertitle"><div class="title">icalspanlist.h File Reference</div></div>
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<p>Code that supports collections of free/busy spans of time.
<a href="#details">More...</a></p>
<p><a href="icalspanlist_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="typedef-members" name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:ab56eb13ccdb70ef4a7d6aede068d6fd4"><td class="memItemLeft" align="right" valign="top"><a id="ab56eb13ccdb70ef4a7d6aede068d6fd4" name="ab56eb13ccdb70ef4a7d6aede068d6fd4"></a>
typedef struct <a class="el" href="structicalspanlist__impl.html">icalspanlist_impl</a> </td><td class="memItemRight" valign="bottom"><b>icalspanlist</b></td></tr>
<tr class="separator:ab56eb13ccdb70ef4a7d6aede068d6fd4"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a7075f544806d8dec4696ccf80067f7d7"><td class="memItemLeft" align="right" valign="top">int * </td><td class="memItemRight" valign="bottom"><a class="el" href="icalspanlist_8h.html#a7075f544806d8dec4696ccf80067f7d7">icalspanlist_as_freebusy_matrix</a> (<a class="el" href="structicalspanlist__impl.html">icalspanlist</a> *span, int delta_t)</td></tr>
<tr class="memdesc:a7075f544806d8dec4696ccf80067f7d7"><td class="mdescLeft"> </td><td class="mdescRight">Returns an hour-by-hour array of free/busy times over a given period. <a href="icalspanlist_8h.html#a7075f544806d8dec4696ccf80067f7d7">More...</a><br /></td></tr>
<tr class="separator:a7075f544806d8dec4696ccf80067f7d7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aed5ab46eeb595eb24cb99494f6837267"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structicalcomponent__impl.html">icalcomponent</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="icalspanlist_8h.html#aed5ab46eeb595eb24cb99494f6837267">icalspanlist_as_vfreebusy</a> (<a class="el" href="structicalspanlist__impl.html">icalspanlist</a> *sl, const char *organizer, const char *attendee)</td></tr>
<tr class="memdesc:aed5ab46eeb595eb24cb99494f6837267"><td class="mdescLeft"> </td><td class="mdescRight">Returns a VFREEBUSY component for a spanlist. <a href="icalspanlist_8h.html#aed5ab46eeb595eb24cb99494f6837267">More...</a><br /></td></tr>
<tr class="separator:aed5ab46eeb595eb24cb99494f6837267"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a31a026b29f6b18108e49b15c9593a7fa"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="icalspanlist_8h.html#a31a026b29f6b18108e49b15c9593a7fa">icalspanlist_dump</a> (<a class="el" href="structicalspanlist__impl.html">icalspanlist</a> *sl)</td></tr>
<tr class="memdesc:a31a026b29f6b18108e49b15c9593a7fa"><td class="mdescLeft"> </td><td class="mdescRight">(Debug) print out spanlist to STDOUT. <a href="icalspanlist_8h.html#a31a026b29f6b18108e49b15c9593a7fa">More...</a><br /></td></tr>
<tr class="separator:a31a026b29f6b18108e49b15c9593a7fa"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:acb42d8b7053e8886c8ea895699f6fa9c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="icalspanlist_8h.html#acb42d8b7053e8886c8ea895699f6fa9c">icalspanlist_free</a> (<a class="el" href="structicalspanlist__impl.html">icalspanlist</a> *sl)</td></tr>
<tr class="memdesc:acb42d8b7053e8886c8ea895699f6fa9c"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <a href="icalspanlist_8h.html#acb42d8b7053e8886c8ea895699f6fa9c">More...</a><br /></td></tr>
<tr class="separator:acb42d8b7053e8886c8ea895699f6fa9c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a980cdf00f77540c74dc44f7037aa82a5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structicalspanlist__impl.html">icalspanlist</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="icalspanlist_8h.html#a980cdf00f77540c74dc44f7037aa82a5">icalspanlist_from_vfreebusy</a> (<a class="el" href="structicalcomponent__impl.html">icalcomponent</a> *comp)</td></tr>
<tr class="memdesc:a980cdf00f77540c74dc44f7037aa82a5"><td class="mdescLeft"> </td><td class="mdescRight">Constructs an icalspanlist from a VFREEBUSY component. <a href="icalspanlist_8h.html#a980cdf00f77540c74dc44f7037aa82a5">More...</a><br /></td></tr>
<tr class="separator:a980cdf00f77540c74dc44f7037aa82a5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:acbf0f85b59416bfc8e8a65970e191136"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structicalspanlist__impl.html">icalspanlist</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="icalspanlist_8h.html#acbf0f85b59416bfc8e8a65970e191136">icalspanlist_new</a> (<a class="el" href="structicalset__impl.html">icalset</a> *set, struct <a class="el" href="structicaltimetype.html">icaltimetype</a> start, struct <a class="el" href="structicaltimetype.html">icaltimetype</a> end)</td></tr>
<tr class="memdesc:acbf0f85b59416bfc8e8a65970e191136"><td class="mdescLeft"> </td><td class="mdescRight">Makes a free list from a set of VEVENT components. <a href="icalspanlist_8h.html#acbf0f85b59416bfc8e8a65970e191136">More...</a><br /></td></tr>
<tr class="separator:acbf0f85b59416bfc8e8a65970e191136"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af8686abb751773c3358c1a82fb79606c"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structicalperiodtype.html">icalperiodtype</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="icalspanlist_8h.html#af8686abb751773c3358c1a82fb79606c">icalspanlist_next_free_time</a> (<a class="el" href="structicalspanlist__impl.html">icalspanlist</a> *sl, struct <a class="el" href="structicaltimetype.html">icaltimetype</a> t)</td></tr>
<tr class="memdesc:af8686abb751773c3358c1a82fb79606c"><td class="mdescLeft"> </td><td class="mdescRight">Finds the next free time span in a spanlist. <a href="icalspanlist_8h.html#af8686abb751773c3358c1a82fb79606c">More...</a><br /></td></tr>
<tr class="separator:af8686abb751773c3358c1a82fb79606c"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p >Code that supports collections of free/busy spans of time. </p>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="a7075f544806d8dec4696ccf80067f7d7" name="a7075f544806d8dec4696ccf80067f7d7"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7075f544806d8dec4696ccf80067f7d7">◆ </a></span>icalspanlist_as_freebusy_matrix()</h2>
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<td class="memname">int * icalspanlist_as_freebusy_matrix </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structicalspanlist__impl.html">icalspanlist</a> * </td>
<td class="paramname"><em>span</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>delta_t</em> </td>
</tr>
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<td>)</td>
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<p>Returns an hour-by-hour array of free/busy times over a given period. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">span</td><td>A valid icalspanlist </td></tr>
<tr><td class="paramname">delta_t</td><td>The time slice to divide by, in seconds. Default 3600.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A pointer to an array of integers containing the number of busy events in each delta_t time period. The final entry contains the value -1.</dd></dl>
<p>This calculation is somewhat tricky. This is due to the fact that the time range contains the start time, but does not contain the end time. To perform a proper calculation we subtract one second off the end times to get a true containing time.</p>
<p >Also note that if you supplying a spanlist that does not start or end on a time boundary divisible by delta_t you may get results that are not quite what you expect. </p>
</div>
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<a id="aed5ab46eeb595eb24cb99494f6837267" name="aed5ab46eeb595eb24cb99494f6837267"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aed5ab46eeb595eb24cb99494f6837267">◆ </a></span>icalspanlist_as_vfreebusy()</h2>
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<td class="memname"><a class="el" href="structicalcomponent__impl.html">icalcomponent</a> * icalspanlist_as_vfreebusy </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structicalspanlist__impl.html">icalspanlist</a> * </td>
<td class="paramname"><em>sl</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>organizer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>attendee</em> </td>
</tr>
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<td>)</td>
<td></td><td></td>
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<p>Returns a VFREEBUSY component for a spanlist. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">sl</td><td>A valid icalspanlist, from <a class="el" href="icalspanlist_8h.html#acbf0f85b59416bfc8e8a65970e191136" title="Makes a free list from a set of VEVENT components.">icalspanlist_new()</a> </td></tr>
<tr><td class="paramname">organizer</td><td>The organizer specified as "MAILTO:user@domain" </td></tr>
<tr><td class="paramname">attendee</td><td>The attendee specified as "MAILTO:user@domain"</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A valid icalcomponent or NULL.</dd></dl>
<p>This function returns a VFREEBUSY component for the given spanlist. The start time is mapped to DTSTART, the end time to DTEND. Each busy span is represented as a separate FREEBUSY entry. An attendee parameter is required, and organizer parameter is optional. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a31a026b29f6b18108e49b15c9593a7fa">◆ </a></span>icalspanlist_dump()</h2>
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<td class="memname">void icalspanlist_dump </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structicalspanlist__impl.html">icalspanlist</a> * </td>
<td class="paramname"><em>sl</em></td><td>)</td>
<td></td>
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<p>(Debug) print out spanlist to STDOUT. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">sl</td><td>A valid icalspanlist. </td></tr>
</table>
</dd>
</dl>
</div>
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<a id="acb42d8b7053e8886c8ea895699f6fa9c" name="acb42d8b7053e8886c8ea895699f6fa9c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acb42d8b7053e8886c8ea895699f6fa9c">◆ </a></span>icalspanlist_free()</h2>
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<td class="memname">void icalspanlist_free </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structicalspanlist__impl.html">icalspanlist</a> * </td>
<td class="paramname"><em>sl</em></td><td>)</td>
<td></td>
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<p>Destructor. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">sl</td><td>A valid icalspanlist</td></tr>
</table>
</dd>
</dl>
<p>Frees the memory associated with the spanlist. </p>
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<a id="a980cdf00f77540c74dc44f7037aa82a5" name="a980cdf00f77540c74dc44f7037aa82a5"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a980cdf00f77540c74dc44f7037aa82a5">◆ </a></span>icalspanlist_from_vfreebusy()</h2>
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<td class="memname"><a class="el" href="structicalspanlist__impl.html">icalspanlist</a> * icalspanlist_from_vfreebusy </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structicalcomponent__impl.html">icalcomponent</a> * </td>
<td class="paramname"><em>comp</em></td><td>)</td>
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<p>Constructs an icalspanlist from a VFREEBUSY component. </p>
<p >Constructs an icalspanlist from the VFREEBUSY component of an icalcomponent.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">comp</td><td>A valid icalcomponent.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A valid icalspanlist or NULL if no VFREEBUSY section. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#acbf0f85b59416bfc8e8a65970e191136">◆ </a></span>icalspanlist_new()</h2>
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<td class="memname"><a class="el" href="structicalspanlist__impl.html">icalspanlist</a> * icalspanlist_new </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structicalset__impl.html">icalset</a> * </td>
<td class="paramname"><em>set</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="structicaltimetype.html">icaltimetype</a> </td>
<td class="paramname"><em>start</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">struct <a class="el" href="structicaltimetype.html">icaltimetype</a> </td>
<td class="paramname"><em>end</em> </td>
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<p>Makes a free list from a set of VEVENT components. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">set</td><td>A valid icalset containing VEVENTS </td></tr>
<tr><td class="paramname">start</td><td>The free list starts at this date/time </td></tr>
<tr><td class="paramname">end</td><td>The free list ends at this date/time</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A spanlist corresponding to the VEVENTS</dd></dl>
<p>Given a set of components, a start time and an end time return a spanlist that contains the free/busy times. <code>Start</code> and <code>end</code> should be in UTC. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#af8686abb751773c3358c1a82fb79606c">◆ </a></span>icalspanlist_next_free_time()</h2>
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<td class="memname">struct <a class="el" href="structicalperiodtype.html">icalperiodtype</a> icalspanlist_next_free_time </td>
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<td class="paramtype"><a class="el" href="structicalspanlist__impl.html">icalspanlist</a> * </td>
<td class="paramname"><em>sl</em>, </td>
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<td class="paramtype">struct <a class="el" href="structicaltimetype.html">icaltimetype</a> </td>
<td class="paramname"><em>t</em> </td>
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<td>)</td>
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<p>Finds the next free time span in a spanlist. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">sl</td><td>The spanlist to search. </td></tr>
<tr><td class="paramname">t</td><td>The time to start looking.</td></tr>
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<p>Given a spanlist and a time, finds the next period of time that is free. </p>
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