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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 <pcre.h></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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