2014-07-04 22:28:24 +00:00
|
|
|
.TH PCRE_ASSIGN_JIT_STACK 3 "24 June 2012" "PCRE 8.30"
|
|
|
|
|
.SH NAME
|
|
|
|
|
PCRE - Perl-compatible regular expressions
|
|
|
|
|
.SH SYNOPSIS
|
|
|
|
|
.rs
|
|
|
|
|
.sp
|
|
|
|
|
.B #include <pcre.h>
|
|
|
|
|
.PP
|
2014-07-05 11:53:30 +00:00
|
|
|
.nf
|
2014-07-04 22:28:24 +00:00
|
|
|
.B void pcre_assign_jit_stack(pcre_extra *\fIextra\fP,
|
2014-07-05 11:53:30 +00:00
|
|
|
.B " pcre_jit_callback \fIcallback\fP, void *\fIdata\fP);"
|
|
|
|
|
.sp
|
2014-07-04 22:28:24 +00:00
|
|
|
.B void pcre16_assign_jit_stack(pcre16_extra *\fIextra\fP,
|
2014-07-05 11:53:30 +00:00
|
|
|
.B " pcre16_jit_callback \fIcallback\fP, void *\fIdata\fP);"
|
|
|
|
|
.sp
|
2014-07-04 22:28:24 +00:00
|
|
|
.B void pcre32_assign_jit_stack(pcre32_extra *\fIextra\fP,
|
2014-07-05 11:53:30 +00:00
|
|
|
.B " pcre32_jit_callback \fIcallback\fP, void *\fIdata\fP);"
|
|
|
|
|
.fi
|
2014-07-04 22:28:24 +00:00
|
|
|
.
|
|
|
|
|
.SH DESCRIPTION
|
|
|
|
|
.rs
|
|
|
|
|
.sp
|
|
|
|
|
This function provides control over the memory used as a stack at run-time by a
|
|
|
|
|
call to \fBpcre[16|32]_exec()\fP with a pattern that has been successfully
|
|
|
|
|
compiled with JIT optimization. The arguments are:
|
|
|
|
|
.sp
|
|
|
|
|
extra the data pointer returned by \fBpcre[16|32]_study()\fP
|
|
|
|
|
callback a callback function
|
|
|
|
|
data a JIT stack or a value to be passed to the callback
|
|
|
|
|
function
|
|
|
|
|
.P
|
|
|
|
|
If \fIcallback\fP is NULL and \fIdata\fP is NULL, an internal 32K block on
|
|
|
|
|
the machine stack is used.
|
|
|
|
|
.P
|
|
|
|
|
If \fIcallback\fP is NULL and \fIdata\fP is not NULL, \fIdata\fP must
|
|
|
|
|
be a valid JIT stack, the result of calling \fBpcre[16|32]_jit_stack_alloc()\fP.
|
|
|
|
|
.P
|
|
|
|
|
If \fIcallback\fP not NULL, it is called with \fIdata\fP 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 \fBpcre[16|32]_jit_stack_alloc()\fP.
|
|
|
|
|
.P
|
|
|
|
|
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 application, each thread
|
|
|
|
|
must use its own JIT stack. For more details, see the
|
|
|
|
|
.\" HREF
|
|
|
|
|
\fBpcrejit\fP
|
|
|
|
|
.\"
|
|
|
|
|
page.
|
|
|
|
|
.P
|
|
|
|
|
There is a complete description of the PCRE native API in the
|
|
|
|
|
.\" HREF
|
|
|
|
|
\fBpcreapi\fP
|
|
|
|
|
.\"
|
|
|
|
|
page and a description of the POSIX API in the
|
|
|
|
|
.\" HREF
|
|
|
|
|
\fBpcreposix\fP
|
|
|
|
|
.\"
|
|
|
|
|
page.
|
