PCRE_ASSIGN_JIT_STACK(3) Library Functions Manual PCRE_ASSIGN_JIT_STACK(3)
NAME
PCRE - Perl-compatible regular expressions
SYNOPSIS
#include <pcre.h>
void pcre_assign_jit_stack(pcre_extra *extra,
pcre_jit_callback callback, void *data);
void pcre16_assign_jit_stack(pcre16_extra *extra,
pcre16_jit_callback callback, void *data);
void pcre32_assign_jit_stack(pcre32_extra *extra,
pcre32_jit_callback callback, void *data);
DESCRIPTION
This function provides control over the memory used as a stack at run-
time by a call to pcre[16|32]_exec() with a pattern that has been suc-
cessfully compiled with JIT optimization. The arguments are:
extra the data pointer returned by pcre[16|32]_study()
callback a callback function
data a JIT stack or a value to be passed to the callback
function
If callback is NULL and data is NULL, an internal 32K block on the ma-
chine stack is used.
If callback is NULL and data is not NULL, data must be a valid JIT
stack, the result of calling pcre[16|32]_jit_stack_alloc().
If callback not NULL, it is called with data as an argument at the
start of matching, in order to set up a JIT stack. If the result is
NULL, the internal 32K stack is used; otherwise the return value must
be a valid JIT stack, the result of calling pcre[16|32]_jit_stack_al-
loc().
You may safely assign the same JIT stack to multiple patterns, as long
as they are all matched in the same thread. In a multithread applica-
tion, each thread must use its own JIT stack. For more details, see the
pcrejit page.
There is a complete description of the PCRE native API in the pcreapi
page and a description of the POSIX API in the pcreposix page.
PCRE 8.30 24 June 2012 PCRE_ASSIGN_JIT_STACK(3)
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