1PCRE_ASSIGN_JIT_STACK(3)   Library Functions Manual   PCRE_ASSIGN_JIT_STACK(3)
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NAME

6       PCRE - Perl-compatible regular expressions
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SYNOPSIS

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10       #include <pcre.h>
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12       void pcre_assign_jit_stack(pcre_extra *extra,
13            pcre_jit_callback callback, void *data);
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15       void pcre16_assign_jit_stack(pcre16_extra *extra,
16            pcre16_jit_callback callback, void *data);
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18       void pcre32_assign_jit_stack(pcre32_extra *extra,
19            pcre32_jit_callback callback, void *data);
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DESCRIPTION

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23       This  function provides control over the memory used as a stack at run-
24       time by a call to pcre[16|32]_exec() with a pattern that has been  suc‐
25       cessfully compiled with JIT optimization. The arguments are:
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27         extra     the data pointer returned by pcre[16|32]_study()
28         callback  a callback function
29         data      a JIT stack or a value to be passed to the callback
30                     function
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32       If  callback  is  NULL  and  data is NULL, an internal 32K block on the
33       machine stack is used.
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35       If callback is NULL and data is not NULL, data  must  be  a  valid  JIT
36       stack, the result of calling pcre[16|32]_jit_stack_alloc().
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38       If  callback  not  NULL,  it  is called with data as an argument at the
39       start of matching, in order to set up a JIT stack.  If  the  result  is
40       NULL,  the  internal 32K stack is used; otherwise the return value must
41       be    a    valid    JIT    stack,     the     result     of     calling
42       pcre[16|32]_jit_stack_alloc().
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44       You  may safely assign the same JIT stack to multiple patterns, as long
45       as they are all matched in the same thread. In a  multithread  applica‐
46       tion, each thread must use its own JIT stack. For more details, see the
47       pcrejit page.
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49       There is a complete description of the PCRE native API in  the  pcreapi
50       page and a description of the POSIX API in the pcreposix page.
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54PCRE 8.30                        24 June 2012         PCRE_ASSIGN_JIT_STACK(3)
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