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<title>Procyon AVRlib: buffer.c File Reference</title>
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<h1>buffer.c File Reference</h1><hr><a name="_details"></a><h2>Detailed Description</h2>
<p>
Definition in file <a class="el" href="buffer_8c-source.html">buffer.c</a>.
<p>
<code>#include "<a class="el" href="buffer_8h-source.html">buffer.h</a>"</code><br>
<code>#include "<a class="el" href="global_8h-source.html">global.h</a>"</code><br>
<code>#include "avr/io.h"</code><br>
<p>
<a href="buffer_8c-source.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a0" doxytag="buffer.c::CRITICAL_SECTION_START"></a>
#define </td><td class="memItemRight" valign="bottom"><b>CRITICAL_SECTION_START</b> unsigned char _sreg = SREG; cli()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a1" doxytag="buffer.c::CRITICAL_SECTION_END"></a>
#define </td><td class="memItemRight" valign="bottom"><b>CRITICAL_SECTION_END</b> SREG = _sreg</td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga1" doxytag="buffer.c::bufferInit"></a>
void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__buffer.html#ga1">bufferInit</a> (<a class="el" href="structstruct__cBuffer.html">cBuffer</a> *buffer, unsigned char *start, unsigned short size)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">initialize a buffer to start at a given address and have given size <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga2" doxytag="buffer.c::bufferGetFromFront"></a>
unsigned char </td><td class="memItemRight" valign="bottom"><a class="el" href="group__buffer.html#ga2">bufferGetFromFront</a> (<a class="el" href="structstruct__cBuffer.html">cBuffer</a> *buffer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">get the first byte from the front of the buffer <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga3" doxytag="buffer.c::bufferDumpFromFront"></a>
void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__buffer.html#ga3">bufferDumpFromFront</a> (<a class="el" href="structstruct__cBuffer.html">cBuffer</a> *buffer, unsigned short numbytes)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">dump (discard) the first numbytes from the front of the buffer <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga4" doxytag="buffer.c::bufferGetAtIndex"></a>
unsigned char </td><td class="memItemRight" valign="bottom"><a class="el" href="group__buffer.html#ga4">bufferGetAtIndex</a> (<a class="el" href="structstruct__cBuffer.html">cBuffer</a> *buffer, unsigned short index)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">get a byte at the specified index in the buffer (kind of like array access) <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga5" doxytag="buffer.c::bufferAddToEnd"></a>
unsigned char </td><td class="memItemRight" valign="bottom"><a class="el" href="group__buffer.html#ga5">bufferAddToEnd</a> (<a class="el" href="structstruct__cBuffer.html">cBuffer</a> *buffer, unsigned char data)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">add a byte to the end of the buffer <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga6" doxytag="buffer.c::bufferIsNotFull"></a>
unsigned short </td><td class="memItemRight" valign="bottom"><a class="el" href="group__buffer.html#ga6">bufferIsNotFull</a> (<a class="el" href="structstruct__cBuffer.html">cBuffer</a> *buffer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">check if the buffer is full/not full (returns zero value if full) <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ga7" doxytag="buffer.c::bufferFlush"></a>
void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__buffer.html#ga7">bufferFlush</a> (<a class="el" href="structstruct__cBuffer.html">cBuffer</a> *buffer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">flush (clear) the contents of the buffer <br></td></tr>
</table>
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