group__apr__poll.html
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<hr><h2>Function Documentation</h2>
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<td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_poll </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="structapr__pollfd__t.html">apr_pollfd_t</a> * </td>
<td class="mdname" nowrap> <em>aprset</em>, </td>
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<td class="md" nowrap>apr_int32_t </td>
<td class="mdname" nowrap> <em>numsock</em>, </td>
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<td class="md" nowrap>apr_int32_t * </td>
<td class="mdname" nowrap> <em>nsds</em>, </td>
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<td class="md" nowrap><a class="el" href="group__apr__time.html#ga3">apr_interval_time_t</a> </td>
<td class="mdname" nowrap> <em>timeout</em></td>
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<td class="md">) </td>
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Poll the sockets in the poll structure <dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>aprset</em> </td><td>The poll structure we will be using. </td></tr>
<tr><td></td><td valign=top><em>numsock</em> </td><td>The number of sockets we are polling </td></tr>
<tr><td></td><td valign=top><em>nsds</em> </td><td>The number of sockets signalled. </td></tr>
<tr><td></td><td valign=top><em>timeout</em> </td><td>The amount of time in microseconds to wait. This is a maximum, not a minimum. If a socket is signalled, we will wake up before this time. A negative number means wait until a socket is signalled. </td></tr>
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<dl compact><dt><b>Remarks:</b></dt><dd>The number of sockets signalled is returned in the third argument. This is a blocking call, and it will not return until either a socket has been signalled, or the timeout has expired. </dd></dl>
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<a class="anchor" name="ga4" doxytag="apr_poll.h::apr_pollset_add" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_pollset_add </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="group__apr__poll.html#ga1">apr_pollset_t</a> * </td>
<td class="mdname" nowrap> <em>pollset</em>, </td>
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<td class="md" nowrap>const <a class="el" href="structapr__pollfd__t.html">apr_pollfd_t</a> * </td>
<td class="mdname" nowrap> <em>descriptor</em></td>
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Add a socket or file descriptor to a pollset <dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>pollset</em> </td><td>The pollset to which to add the descriptor </td></tr>
<tr><td></td><td valign=top><em>descriptor</em> </td><td>The descriptor to add </td></tr>
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<dl compact><dt><b>Remarks:</b></dt><dd>If you set client_data in the descriptor, that value will be returned in the client_data field whenever this descriptor is signalled in <a class="el" href="group__apr__poll.html#ga6">apr_pollset_poll()</a>. </dd></dl>
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<a class="anchor" name="ga2" doxytag="apr_poll.h::apr_pollset_create" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_pollset_create </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="group__apr__poll.html#ga1">apr_pollset_t</a> ** </td>
<td class="mdname" nowrap> <em>pollset</em>, </td>
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<td class="md" nowrap>apr_uint32_t </td>
<td class="mdname" nowrap> <em>size</em>, </td>
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<td class="md" nowrap><a class="el" href="group__apr__pools.html#ga0">apr_pool_t</a> * </td>
<td class="mdname" nowrap> <em>p</em>, </td>
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<td class="md" nowrap>apr_uint32_t </td>
<td class="mdname" nowrap> <em>flags</em></td>
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Setup a pollset object <dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>pollset</em> </td><td>The pointer in which to return the newly created object </td></tr>
<tr><td></td><td valign=top><em>size</em> </td><td>The maximum number of descriptors that this pollset can hold </td></tr>
<tr><td></td><td valign=top><em>p</em> </td><td>The pool from which to allocate the pollset </td></tr>
<tr><td></td><td valign=top><em>flags</em> </td><td>Optional flags to modify the operation of the pollset.</td></tr>
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<dl compact><dt><b>Remarks:</b></dt><dd>If flags equals APR_POLLSET_THREADSAFE, then a pollset is created on which it is safe to make concurrent calls to <a class="el" href="group__apr__poll.html#ga4">apr_pollset_add()</a>, <a class="el" href="group__apr__poll.html#ga5">apr_pollset_remove()</a> and <a class="el" href="group__apr__poll.html#ga6">apr_pollset_poll()</a> from separate threads. This feature is only supported on some platforms; the <a class="el" href="group__apr__poll.html#ga2">apr_pollset_create()</a> call will fail with APR_ENOTIMPL on platforms where it is not supported. </dd></dl>
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<a class="anchor" name="ga3" doxytag="apr_poll.h::apr_pollset_destroy" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_pollset_destroy </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="group__apr__poll.html#ga1">apr_pollset_t</a> * </td>
<td class="mdname1" valign="top" nowrap> <em>pollset</em> </td>
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Destroy a pollset object <dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>pollset</em> </td><td>The pollset to destroy </td></tr>
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<a class="anchor" name="ga6" doxytag="apr_poll.h::apr_pollset_poll" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_pollset_poll </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="group__apr__poll.html#ga1">apr_pollset_t</a> * </td>
<td class="mdname" nowrap> <em>pollset</em>, </td>
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<td class="mdname" nowrap> <em>timeout</em>, </td>
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<td class="md" nowrap>apr_int32_t * </td>
<td class="mdname" nowrap> <em>num</em>, </td>
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<td class="md" nowrap>const <a class="el" href="structapr__pollfd__t.html">apr_pollfd_t</a> ** </td>
<td class="mdname" nowrap> <em>descriptors</em></td>
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Block for activity on the descriptor(s) in a pollset <dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>pollset</em> </td><td>The pollset to use </td></tr>
<tr><td></td><td valign=top><em>timeout</em> </td><td>Timeout in microseconds </td></tr>
<tr><td></td><td valign=top><em>num</em> </td><td>Number of signalled descriptors (output parameter) </td></tr>
<tr><td></td><td valign=top><em>descriptors</em> </td><td>Array of signalled descriptors (output parameter) </td></tr>
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<a class="anchor" name="ga5" doxytag="apr_poll.h::apr_pollset_remove" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="group__apr__errno.html#ga0">apr_status_t</a> apr_pollset_remove </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="group__apr__poll.html#ga1">apr_pollset_t</a> * </td>
<td class="mdname" nowrap> <em>pollset</em>, </td>
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<td class="md" nowrap>const <a class="el" href="structapr__pollfd__t.html">apr_pollfd_t</a> * </td>
<td class="mdname" nowrap> <em>descriptor</em></td>
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Remove a descriptor from a pollset <dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td></td><td valign=top><em>pollset</em> </td><td>The pollset from which to remove the descriptor </td></tr>
<tr><td></td><td valign=top><em>descriptor</em> </td><td>The descriptor to remove </td></tr>
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<hr size="1"><address style="align: right;"><small>Generated on Mon Feb 7 13:18:25 2005 for Apache Portable Runtime by
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