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1.1       misho       1: <html>
                      2: <head>
                      3: <title>pcre_assign_jit_stack specification</title>
                      4: </head>
                      5: <body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB">
                      6: <h1>pcre_assign_jit_stack man page</h1>
                      7: <p>
                      8: Return to the <a href="index.html">PCRE index page</a>.
                      9: </p>
                     10: <p>
                     11: This page is part of the PCRE HTML documentation. It was generated automatically
                     12: from the original man page. If there is any nonsense in it, please consult the
                     13: man page, in case the conversion went wrong.
                     14: <br>
                     15: <br><b>
                     16: SYNOPSIS
                     17: </b><br>
                     18: <P>
                     19: <b>#include &#60;pcre.h&#62;</b>
                     20: </P>
                     21: <P>
                     22: <b>void pcre_assign_jit_stack(pcre_extra *<i>extra</i>,</b>
                     23: <b>pcre_jit_callback <i>callback</i>, void *<i>data</i>);</b>
                     24: </P>
                     25: <br><b>
                     26: DESCRIPTION
                     27: </b><br>
                     28: <P>
                     29: This function provides control over the memory used as a stack at runtime by a
                     30: call to <b>pcre_exec()</b> with a pattern that has been successfully compiled
                     31: with JIT optimization. The arguments are:
                     32: <pre>
                     33:   extra     the data pointer returned by <b>pcre_study()</b>
                     34:   callback  a callback function
                     35:   data      a JIT stack or a value to be passed to the callback
                     36:               function
                     37: </PRE>
                     38: </P>
                     39: <P>
                     40: If <i>callback</i> is NULL and <i>data</i> is NULL, an internal 32K block on
                     41: the machine stack is used.
                     42: </P>
                     43: <P>
                     44: If <i>callback</i> is NULL and <i>data</i> is not NULL, <i>data</i> must
                     45: be a valid JIT stack, the result of calling <b>pcre_jit_stack_alloc()</b>.
                     46: </P>
                     47: <P>
                     48: If <i>callback</i> not NULL, it is called with <i>data</i> as an argument at
                     49: the start of matching, in order to set up a JIT stack. If the result is NULL,
                     50: the internal 32K stack is used; otherwise the return value must be a valid JIT
                     51: stack, the result of calling <b>pcre_jit_stack_alloc()</b>.
                     52: </P>
                     53: <P>
                     54: You may safely assign the same JIT stack to multiple patterns, as long as they
                     55: are all matched in the same thread. In a multithread application, each thread
                     56: must use its own JIT stack. For more details, see the
                     57: <a href="pcrejit.html"><b>pcrejit</b></a>
                     58: page.
                     59: </P>
                     60: <P>
                     61: There is a complete description of the PCRE native API in the
                     62: <a href="pcreapi.html"><b>pcreapi</b></a>
                     63: page and a description of the POSIX API in the
                     64: <a href="pcreposix.html"><b>pcreposix</b></a>
                     65: page.
                     66: <p>
                     67: Return to the <a href="index.html">PCRE index page</a>.
                     68: </p>
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