1B::Hooks::OP::PPAddr(3)User Contributed Perl DocumentatioBn::Hooks::OP::PPAddr(3)
2
3
4

NAME

6       B::Hooks::OP::PPAddr - Hook into opcode execution
7

VERSION

9       version 0.06
10

SYNOPSIS

12           #include "hook_op_check.h"
13           #include "hook_op_ppaddr.h"
14
15           STATIC OP *
16           execute_entereval (pTHX_ OP *op, void *user_data) {
17               ...
18           }
19
20           STATIC OP *
21           check_entereval (pTHX_ OP *op, void *user_data) {
22               hook_op_ppaddr (op, execute_entereval, NULL);
23           }
24
25           hook_op_check (OP_ENTEREVAL, check_entereval, NULL);
26

DESCRIPTION

28       This module provides a C API for XS modules to hook into the execution
29       of perl opcodes.
30
31       ExtUtils::Depends is used to export all functions for other XS modules
32       to use. Include the following in your Makefile.PL:
33
34           my $pkg = ExtUtils::Depends->new('Your::XSModule', 'B::Hooks::OP::PPAddr');
35           WriteMakefile(
36               ... # your normal makefile flags
37               $pkg->get_makefile_vars,
38           );
39
40       Your XS module can now include "hook_op_ppaddr.h".
41

TYPES

43   OP
44           typedef OP *(*hook_op_ppaddr_cb_t) (pTHX_ OP *, void *user_data)
45
46       Type that callbacks need to implement.
47

FUNCTIONS

49   hook_op_ppaddr
50           void hook_op_ppaddr (OP *op, hook_op_ppaddr_cb_t cb, void *user_data)
51
52       Replace the function to execute "op" with the callback "cb".
53       "user_data" will be passed to the callback as the last argument.
54
55   hook_op_ppaddr_around
56           void hook_op_ppaddr_around (OP *op, hook_op_ppaddr_cb_t before, hook_op_ppaddr_cb_t after, void *user_data)
57
58       Register the callbacks "before" and "after" to be called before and
59       after the execution of "op". "user_data" will be passed to the callback
60       as the last argument.
61

SEE ALSO

63       •   B::Hooks::OP::Check
64

SUPPORT

66       Bugs may be submitted through the RT bug tracker
67       <https://rt.cpan.org/Public/Dist/Display.html?Name=B-Hooks-OP-PPAddr>
68       (or bug-B-Hooks-OP-PPAddr@rt.cpan.org <mailto:bug-B-Hooks-OP-
69       PPAddr@rt.cpan.org>).
70

AUTHOR

72       Florian Ragwitz <rafl@debian.org>
73

CONTRIBUTORS

75       •   Karen Etheridge <ether@cpan.org>
76
77       •   Alexandr Ciornii <alexchorny@gmail.com>
78
79       •   Stephan Loyd <stephanloyd9@gmail.com>
80

82       This software is copyright (c) 2008 by Florian Ragwitz.
83
84       This is free software; you can redistribute it and/or modify it under
85       the same terms as the Perl 5 programming language system itself.
86
87
88
89perl v5.36.0                      2022-07-22           B::Hooks::OP::PPAddr(3)
Impressum