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1858 lines
48 KiB
1858 lines
48 KiB
@rem = '--*-Perl-*--
|
|
@echo off
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|
if "%OS%" == "Windows_NT" goto WinNT
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|
perl -x -S "%0" %1 %2 %3 %4 %5 %6 %7 %8 %9
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|
goto endofperl
|
|
:WinNT
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|
perl -x -S %0 %*
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|
if NOT "%COMSPEC%" == "%SystemRoot%\system32\cmd.exe" goto endofperl
|
|
if %errorlevel% == 9009 echo You do not have Perl in your PATH.
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|
if errorlevel 1 goto script_failed_so_exit_with_non_zero_val 2>nul
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|
goto endofperl
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|
@rem ';
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|
#!perl
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#line 15
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eval 'exec C:\Perl\bin\perl.exe -S $0 ${1+"$@"}'
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if $running_under_some_shell;
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|
|
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=head1 NAME
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|
|
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h2xs - convert .h C header files to Perl extensions
|
|
|
|
=head1 SYNOPSIS
|
|
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B<h2xs> [B<-ACOPXacdfkmx>] [B<-F> addflags] [B<-M> fmask] [B<-n> module_name] [B<-o> tmask] [B<-p> prefix] [B<-s> subs] [B<-v> version] [headerfile ... [extra_libraries]]
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|
|
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B<h2xs> B<-h>
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|
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=head1 DESCRIPTION
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I<h2xs> builds a Perl extension from C header files. The extension
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|
will include functions which can be used to retrieve the value of any
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#define statement which was in the C header files.
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|
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The I<module_name> will be used for the name of the extension. If
|
|
module_name is not supplied then the name of the first header file
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will be used, with the first character capitalized.
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|
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If the extension might need extra libraries, they should be included
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|
here. The extension Makefile.PL will take care of checking whether
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|
the libraries actually exist and how they should be loaded.
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|
The extra libraries should be specified in the form -lm -lposix, etc,
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|
just as on the cc command line. By default, the Makefile.PL will
|
|
search through the library path determined by Configure. That path
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|
can be augmented by including arguments of the form B<-L/another/library/path>
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|
in the extra-libraries argument.
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|
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|
=head1 OPTIONS
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=over 5
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=item B<-A>
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Omit all autoload facilities. This is the same as B<-c> but also removes the
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|
S<C<use AutoLoader>> statement from the .pm file.
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|
=item B<-C>
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Omits creation of the F<Changes> file, and adds a HISTORY section to
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|
the POD template.
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|
=item B<-F> I<addflags>
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|
Additional flags to specify to C preprocessor when scanning header for
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|
function declarations. Should not be used without B<-x>.
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|
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|
=item B<-M> I<regular expression>
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|
|
|
selects functions/macros to process.
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|
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|
=item B<-O>
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|
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|
Allows a pre-existing extension directory to be overwritten.
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|
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|
=item B<-P>
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|
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|
Omit the autogenerated stub POD section.
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|
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|
=item B<-X>
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|
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Omit the XS portion. Used to generate templates for a module which is not
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XS-based. C<-c> and C<-f> are implicitly enabled.
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=item B<-a>
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|
Generate an accessor method for each element of structs and unions. The
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|
generated methods are named after the element name; will return the current
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|
value of the element if called without additional arguments; and will set
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|
the element to the supplied value (and return the new value) if called with
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|
an additional argument. Embedded structures and unions are returned as a
|
|
pointer rather than the complete structure, to facilitate chained calls.
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|
|
|
These methods all apply to the Ptr type for the structure; additionally
|
|
two methods are constructed for the structure type itself, C<_to_ptr>
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|
which returns a Ptr type pointing to the same structure, and a C<new>
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|
method to construct and return a new structure, initialised to zeroes.
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|
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|
=item B<-c>
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|
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|
Omit C<constant()> from the .xs file and corresponding specialised
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|
C<AUTOLOAD> from the .pm file.
|
|
|
|
=item B<-d>
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|
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|
Turn on debugging messages.
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|
|
|
=item B<-f>
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|
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|
Allows an extension to be created for a header even if that header is
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|
not found in standard include directories.
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|
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|
=item B<-h>
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Print the usage, help and version for this h2xs and exit.
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|
|
|
=item B<-k>
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|
|
|
For function arguments declared as C<const>, omit the const attribute in the
|
|
generated XS code.
|
|
|
|
=item B<-m>
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|
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|
B<Experimental>: for each variable declared in the header file(s), declare
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|
a perl variable of the same name magically tied to the C variable.
|
|
|
|
=item B<-n> I<module_name>
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|
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|
Specifies a name to be used for the extension, e.g., S<-n RPC::DCE>
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|
|
|
=item B<-o> I<regular expression>
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|
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|
Use "opaque" data type for the C types matched by the regular
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|
expression, even if these types are C<typedef>-equivalent to types
|
|
from typemaps. Should not be used without B<-x>.
|
|
|
|
This may be useful since, say, types which are C<typedef>-equivalent
|
|
to integers may represent OS-related handles, and one may want to work
|
|
with these handles in OO-way, as in C<$handle-E<gt>do_something()>.
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|
Use C<-o .> if you want to handle all the C<typedef>ed types as opaque types.
|
|
|
|
The type-to-match is whitewashed (except for commas, which have no
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|
whitespace before them, and multiple C<*> which have no whitespace
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|
between them).
|
|
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|
=item B<-p> I<prefix>
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|
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|
Specify a prefix which should be removed from the Perl function names, e.g., S<-p sec_rgy_>
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|
This sets up the XS B<PREFIX> keyword and removes the prefix from functions that are
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|
autoloaded via the C<constant()> mechanism.
|
|
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|
=item B<-s> I<sub1,sub2>
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|
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|
Create a perl subroutine for the specified macros rather than autoload with the constant() subroutine.
|
|
These macros are assumed to have a return type of B<char *>, e.g., S<-s sec_rgy_wildcard_name,sec_rgy_wildcard_sid>.
|
|
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|
=item B<-v> I<version>
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|
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|
Specify a version number for this extension. This version number is added
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|
to the templates. The default is 0.01.
|
|
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|
=item B<-x>
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|
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|
Automatically generate XSUBs basing on function declarations in the
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|
header file. The package C<C::Scan> should be installed. If this
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|
option is specified, the name of the header file may look like
|
|
C<NAME1,NAME2>. In this case NAME1 is used instead of the specified string,
|
|
but XSUBs are emitted only for the declarations included from file NAME2.
|
|
|
|
Note that some types of arguments/return-values for functions may
|
|
result in XSUB-declarations/typemap-entries which need
|
|
hand-editing. Such may be objects which cannot be converted from/to a
|
|
pointer (like C<long long>), pointers to functions, or arrays. See
|
|
also the section on L<LIMITATIONS of B<-x>>.
|
|
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|
=item B<-b> I<version>
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|
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|
Generates a .pm file which is backwards compatible with the specified
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|
perl version.
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|
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|
For versions < 5.6.0, the changes are.
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|
- no use of 'our' (uses 'use vars' instead)
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|
- no 'use warnings'
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|
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|
Specifying a compatibility version higher than the version of perl you
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|
are using to run h2xs will have no effect.
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|
=back
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|
=head1 EXAMPLES
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|
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# Default behavior, extension is Rusers
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h2xs rpcsvc/rusers
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# Same, but extension is RUSERS
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h2xs -n RUSERS rpcsvc/rusers
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# Extension is rpcsvc::rusers. Still finds <rpcsvc/rusers.h>
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h2xs rpcsvc::rusers
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# Extension is ONC::RPC. Still finds <rpcsvc/rusers.h>
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|
h2xs -n ONC::RPC rpcsvc/rusers
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|
# Without constant() or AUTOLOAD
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|
h2xs -c rpcsvc/rusers
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|
# Creates templates for an extension named RPC
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|
h2xs -cfn RPC
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|
# Extension is ONC::RPC.
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|
h2xs -cfn ONC::RPC
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|
# Makefile.PL will look for library -lrpc in
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|
# additional directory /opt/net/lib
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|
h2xs rpcsvc/rusers -L/opt/net/lib -lrpc
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|
|
# Extension is DCE::rgynbase
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|
# prefix "sec_rgy_" is dropped from perl function names
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|
h2xs -n DCE::rgynbase -p sec_rgy_ dce/rgynbase
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|
|
|
# Extension is DCE::rgynbase
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|
# prefix "sec_rgy_" is dropped from perl function names
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|
# subroutines are created for sec_rgy_wildcard_name and sec_rgy_wildcard_sid
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|
h2xs -n DCE::rgynbase -p sec_rgy_ \
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|
-s sec_rgy_wildcard_name,sec_rgy_wildcard_sid dce/rgynbase
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|
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|
# Make XS without defines in perl.h, but with function declarations
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|
# visible from perl.h. Name of the extension is perl1.
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|
# When scanning perl.h, define -DEXT=extern -DdEXT= -DINIT(x)=
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|
# Extra backslashes below because the string is passed to shell.
|
|
# Note that a directory with perl header files would
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|
# be added automatically to include path.
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|
h2xs -xAn perl1 -F "-DEXT=extern -DdEXT= -DINIT\(x\)=" perl.h
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|
|
|
# Same with function declaration in proto.h as visible from perl.h.
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|
h2xs -xAn perl2 perl.h,proto.h
|
|
|
|
# Same but select only functions which match /^av_/
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|
h2xs -M '^av_' -xAn perl2 perl.h,proto.h
|
|
|
|
# Same but treat SV* etc as "opaque" types
|
|
h2xs -o '^[S]V \*$' -M '^av_' -xAn perl2 perl.h,proto.h
|
|
|
|
=head2 Extension based on F<.h> and F<.c> files
|
|
|
|
Suppose that you have some C files implementing some functionality,
|
|
and the corresponding header files. How to create an extension which
|
|
makes this functionality accessable in Perl? The example below
|
|
assumes that the header files are F<interface_simple.h> and
|
|
I<interface_hairy.h>, and you want the perl module be named as
|
|
C<Ext::Ension>. If you need some preprocessor directives and/or
|
|
linking with external libraries, see the flags C<-F>, C<-L> and C<-l>
|
|
in L<"OPTIONS">.
|
|
|
|
=over
|
|
|
|
=item Find the directory name
|
|
|
|
Start with a dummy run of h2xs:
|
|
|
|
h2xs -Afn Ext::Ension
|
|
|
|
The only purpose of this step is to create the needed directories, and
|
|
let you know the names of these directories. From the output you can
|
|
see that the directory for the extension is F<Ext/Ension>.
|
|
|
|
=item Copy C files
|
|
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|
Copy your header files and C files to this directory F<Ext/Ension>.
|
|
|
|
=item Create the extension
|
|
|
|
Run h2xs, overwriting older autogenerated files:
|
|
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|
h2xs -Oxan Ext::Ension interface_simple.h interface_hairy.h
|
|
|
|
h2xs looks for header files I<after> changing to the extension
|
|
directory, so it will find your header files OK.
|
|
|
|
=item Archive and test
|
|
|
|
As usual, run
|
|
|
|
cd Ext/Ension
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|
perl Makefile.PL
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|
make dist
|
|
make
|
|
make test
|
|
|
|
=item Hints
|
|
|
|
It is important to do C<make dist> as early as possible. This way you
|
|
can easily merge(1) your changes to autogenerated files if you decide
|
|
to edit your C<.h> files and rerun h2xs.
|
|
|
|
Do not forget to edit the documentation in the generated F<.pm> file.
|
|
|
|
Consider the autogenerated files as skeletons only, you may invent
|
|
better interfaces than what h2xs could guess.
|
|
|
|
Consider this section as a guideline only, some other options of h2xs
|
|
may better suit your needs.
|
|
|
|
=back
|
|
|
|
=head1 ENVIRONMENT
|
|
|
|
No environment variables are used.
|
|
|
|
=head1 AUTHOR
|
|
|
|
Larry Wall and others
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<perl>, L<perlxstut>, L<ExtUtils::MakeMaker>, and L<AutoLoader>.
|
|
|
|
=head1 DIAGNOSTICS
|
|
|
|
The usual warnings if it cannot read or write the files involved.
|
|
|
|
=head1 LIMITATIONS of B<-x>
|
|
|
|
F<h2xs> would not distinguish whether an argument to a C function
|
|
which is of the form, say, C<int *>, is an input, output, or
|
|
input/output parameter. In particular, argument declarations of the
|
|
form
|
|
|
|
int
|
|
foo(n)
|
|
int *n
|
|
|
|
should be better rewritten as
|
|
|
|
int
|
|
foo(n)
|
|
int &n
|
|
|
|
if C<n> is an input parameter.
|
|
|
|
Additionally, F<h2xs> has no facilities to intuit that a function
|
|
|
|
int
|
|
foo(addr,l)
|
|
char *addr
|
|
int l
|
|
|
|
takes a pair of address and length of data at this address, so it is better
|
|
to rewrite this function as
|
|
|
|
int
|
|
foo(sv)
|
|
SV *addr
|
|
PREINIT:
|
|
STRLEN len;
|
|
char *s;
|
|
CODE:
|
|
s = SvPV(sv,len);
|
|
RETVAL = foo(s, len);
|
|
OUTPUT:
|
|
RETVAL
|
|
|
|
or alternately
|
|
|
|
static int
|
|
my_foo(SV *sv)
|
|
{
|
|
STRLEN len;
|
|
char *s = SvPV(sv,len);
|
|
|
|
return foo(s, len);
|
|
}
|
|
|
|
MODULE = foo PACKAGE = foo PREFIX = my_
|
|
|
|
int
|
|
foo(sv)
|
|
SV *sv
|
|
|
|
See L<perlxs> and L<perlxstut> for additional details.
|
|
|
|
=cut
|
|
|
|
use strict;
|
|
|
|
|
|
my( $H2XS_VERSION ) = ' $Revision: 1.21 $ ' =~ /\$Revision:\s+([^\s]+)/;
|
|
my $TEMPLATE_VERSION = '0.01';
|
|
my @ARGS = @ARGV;
|
|
my $compat_version = $];
|
|
|
|
use Getopt::Std;
|
|
|
|
sub usage{
|
|
warn "@_\n" if @_;
|
|
die "h2xs [-ACOPXacdfhkmx] [-F addflags] [-M fmask] [-n module_name] [-o tmask] [-p prefix] [-s subs] [-v version] [headerfile [extra_libraries]]
|
|
version: $H2XS_VERSION
|
|
-A Omit all autoloading facilities (implies -c).
|
|
-C Omit creating the Changes file, add HISTORY heading to stub POD.
|
|
-F Additional flags for C preprocessor (used with -x).
|
|
-M Mask to select C functions/macros (default is select all).
|
|
-O Allow overwriting of a pre-existing extension directory.
|
|
-P Omit the stub POD section.
|
|
-X Omit the XS portion (implies both -c and -f).
|
|
-a Generate get/set accessors for struct and union members (used with -x).
|
|
-c Omit the constant() function and specialised AUTOLOAD from the XS file.
|
|
-d Turn on debugging messages.
|
|
-f Force creation of the extension even if the C header does not exist.
|
|
-h Display this help message
|
|
-k Omit 'const' attribute on function arguments (used with -x).
|
|
-m Generate tied variables for access to declared variables.
|
|
-n Specify a name to use for the extension (recommended).
|
|
-o Regular expression for \"opaque\" types.
|
|
-p Specify a prefix which should be removed from the Perl function names.
|
|
-s Create subroutines for specified macros.
|
|
-v Specify a version number for this extension.
|
|
-x Autogenerate XSUBs using C::Scan.
|
|
-b Specify a perl version to be backwards compatibile with
|
|
extra_libraries
|
|
are any libraries that might be needed for loading the
|
|
extension, e.g. -lm would try to link in the math library.
|
|
";
|
|
}
|
|
|
|
|
|
getopts("ACF:M:OPXacdfhkmn:o:p:s:v:xb:") || usage;
|
|
use vars qw($opt_A $opt_C $opt_F $opt_M $opt_O $opt_P $opt_X $opt_a $opt_c $opt_d
|
|
$opt_f $opt_h $opt_k $opt_m $opt_n $opt_o $opt_p $opt_s $opt_v $opt_x
|
|
$opt_b);
|
|
|
|
usage if $opt_h;
|
|
|
|
if( $opt_b ){
|
|
usage "You cannot use -b and -m at the same time.\n" if ($opt_b && $opt_m);
|
|
$opt_b =~ /^\d+\.\d+\.\d+/ ||
|
|
usage "You must provide the backwards compatibility version in X.Y.Z form. " .
|
|
"(i.e. 5.5.0)\n";
|
|
my ($maj,$min,$sub) = split(/\./,$opt_b,3);
|
|
$compat_version = sprintf("%d.%03d%02d",$maj,$min,$sub);
|
|
}
|
|
|
|
if( $opt_v ){
|
|
$TEMPLATE_VERSION = $opt_v;
|
|
}
|
|
|
|
# -A implies -c.
|
|
$opt_c = 1 if $opt_A;
|
|
|
|
# -X implies -c and -f
|
|
$opt_c = $opt_f = 1 if $opt_X;
|
|
|
|
my %const_xsub = map { $_,1 } split(/,+/, $opt_s) if $opt_s;
|
|
my $extralibs;
|
|
my @path_h;
|
|
|
|
while (my $arg = shift) {
|
|
if ($arg =~ /^-l/i) {
|
|
$extralibs = "$arg @ARGV";
|
|
last;
|
|
}
|
|
push(@path_h, $arg);
|
|
}
|
|
|
|
usage "Must supply header file or module name\n"
|
|
unless (@path_h or $opt_n);
|
|
|
|
my $fmask;
|
|
my $tmask;
|
|
|
|
$fmask = qr{$opt_M} if defined $opt_M;
|
|
$tmask = qr{$opt_o} if defined $opt_o;
|
|
my $tmask_all = $tmask && $opt_o eq '.';
|
|
|
|
if ($opt_x) {
|
|
eval {require C::Scan; 1}
|
|
or die <<EOD;
|
|
C::Scan required if you use -x option.
|
|
To install C::Scan, execute
|
|
perl -MCPAN -e "install C::Scan"
|
|
EOD
|
|
unless ($tmask_all) {
|
|
$C::Scan::VERSION >= 0.70
|
|
or die <<EOD;
|
|
C::Scan v. 0.70 or later required unless you use -o . option.
|
|
You have version $C::Scan::VERSION installed as $INC{'C/Scan.pm'}.
|
|
To install C::Scan, execute
|
|
perl -MCPAN -e "install C::Scan"
|
|
EOD
|
|
}
|
|
if (($opt_m || $opt_a) && $C::Scan::VERSION < 0.73) {
|
|
die <<EOD;
|
|
C::Scan v. 0.73 or later required to use -m or -a options.
|
|
You have version $C::Scan::VERSION installed as $INC{'C/Scan.pm'}.
|
|
To install C::Scan, execute
|
|
perl -MCPAN -e "install C::Scan"
|
|
EOD
|
|
}
|
|
}
|
|
elsif ($opt_o or $opt_F) {
|
|
warn <<EOD;
|
|
Options -o and -F do not make sense without -x.
|
|
EOD
|
|
}
|
|
|
|
my @path_h_ini = @path_h;
|
|
my ($name, %fullpath, %prefix, %seen_define, %prefixless, %const_names);
|
|
|
|
my $module = $opt_n;
|
|
|
|
if( @path_h ){
|
|
use Config;
|
|
use File::Spec;
|
|
my @paths;
|
|
if ($^O eq 'VMS') { # Consider overrides of default location
|
|
# XXXX This is not equivalent to what the older version did:
|
|
# it was looking at $hadsys header-file per header-file...
|
|
my($hadsys) = grep s!^sys/!!i , @path_h;
|
|
@paths = qw( Sys$Library VAXC$Include );
|
|
push @paths, ($hadsys ? 'GNU_CC_Include[vms]' : 'GNU_CC_Include[000000]');
|
|
push @paths, qw( DECC$Library_Include DECC$System_Include );
|
|
}
|
|
else {
|
|
@paths = (File::Spec->curdir(), $Config{usrinc},
|
|
(split ' ', $Config{locincpth}), '/usr/include');
|
|
}
|
|
foreach my $path_h (@path_h) {
|
|
$name ||= $path_h;
|
|
$module ||= do {
|
|
$name =~ s/\.h$//;
|
|
if ( $name !~ /::/ ) {
|
|
$name =~ s#^.*/##;
|
|
$name = "\u$name";
|
|
}
|
|
$name;
|
|
};
|
|
|
|
if( $path_h =~ s#::#/#g && $opt_n ){
|
|
warn "Nesting of headerfile ignored with -n\n";
|
|
}
|
|
$path_h .= ".h" unless $path_h =~ /\.h$/;
|
|
my $fullpath = $path_h;
|
|
$path_h =~ s/,.*$// if $opt_x;
|
|
$fullpath{$path_h} = $fullpath;
|
|
|
|
# Minor trickery: we can't chdir() before we processed the headers
|
|
# (so know the name of the extension), but the header may be in the
|
|
# extension directory...
|
|
my $tmp_path_h = $path_h;
|
|
my $rel_path_h = $path_h;
|
|
my @dirs = @paths;
|
|
if (not -f $path_h) {
|
|
my $found;
|
|
for my $dir (@paths) {
|
|
$found++, last
|
|
if -f ($path_h = File::Spec->catfile($dir, $tmp_path_h));
|
|
}
|
|
if ($found) {
|
|
$rel_path_h = $path_h;
|
|
} else {
|
|
(my $epath = $module) =~ s,::,/,g;
|
|
$epath = File::Spec->catdir('ext', $epath) if -d 'ext';
|
|
$rel_path_h = File::Spec->catfile($epath, $tmp_path_h);
|
|
$path_h = $tmp_path_h; # Used during -x
|
|
push @dirs, $epath;
|
|
}
|
|
}
|
|
|
|
if (!$opt_c) {
|
|
die "Can't find $tmp_path_h in @dirs\n"
|
|
if ( ! $opt_f && ! -f "$rel_path_h" );
|
|
# Scan the header file (we should deal with nested header files)
|
|
# Record the names of simple #define constants into const_names
|
|
# Function prototypes are processed below.
|
|
open(CH, "<$rel_path_h") || die "Can't open $rel_path_h: $!\n";
|
|
defines:
|
|
while (<CH>) {
|
|
if (/^[ \t]*#[ \t]*define\s+([\$\w]+)\b(?!\()\s*(?=[^" \t])(.*)/) {
|
|
my $def = $1;
|
|
my $rest = $2;
|
|
$rest =~ s!/\*.*?(\*/|\n)|//.*!!g; # Remove comments
|
|
$rest =~ s/^\s+//;
|
|
$rest =~ s/\s+$//;
|
|
# Cannot do: (-1) and ((LHANDLE)3) are OK:
|
|
#print("Skip non-wordy $def => $rest\n"),
|
|
# next defines if $rest =~ /[^\w\$]/;
|
|
if ($rest =~ /"/) {
|
|
print("Skip stringy $def => $rest\n") if $opt_d;
|
|
next defines;
|
|
}
|
|
print "Matched $_ ($def)\n" if $opt_d;
|
|
$seen_define{$def} = $rest;
|
|
$_ = $def;
|
|
next if /^_.*_h_*$/i; # special case, but for what?
|
|
if (defined $opt_p) {
|
|
if (!/^$opt_p(\d)/) {
|
|
++$prefix{$_} if s/^$opt_p//;
|
|
}
|
|
else {
|
|
warn "can't remove $opt_p prefix from '$_'!\n";
|
|
}
|
|
}
|
|
$prefixless{$def} = $_;
|
|
if (!$fmask or /$fmask/) {
|
|
print "... Passes mask of -M.\n" if $opt_d and $fmask;
|
|
$const_names{$_}++;
|
|
}
|
|
}
|
|
}
|
|
close(CH);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
my ($ext, $nested, @modparts, $modfname, $modpname);
|
|
(chdir 'ext', $ext = 'ext/') if -d 'ext';
|
|
|
|
if( $module =~ /::/ ){
|
|
$nested = 1;
|
|
@modparts = split(/::/,$module);
|
|
$modfname = $modparts[-1];
|
|
$modpname = join('/',@modparts);
|
|
}
|
|
else {
|
|
$nested = 0;
|
|
@modparts = ();
|
|
$modfname = $modpname = $module;
|
|
}
|
|
|
|
|
|
if ($opt_O) {
|
|
warn "Overwriting existing $ext$modpname!!!\n" if -e $modpname;
|
|
}
|
|
else {
|
|
die "Won't overwrite existing $ext$modpname\n" if -e $modpname;
|
|
}
|
|
if( $nested ){
|
|
my $modpath = "";
|
|
foreach (@modparts){
|
|
mkdir("$modpath$_", 0777);
|
|
$modpath .= "$_/";
|
|
}
|
|
}
|
|
mkdir($modpname, 0777);
|
|
chdir($modpname) || die "Can't chdir $ext$modpname: $!\n";
|
|
|
|
my %types_seen;
|
|
my %std_types;
|
|
my $fdecls = [];
|
|
my $fdecls_parsed = [];
|
|
my $typedef_rex;
|
|
my %typedefs_pre;
|
|
my %known_fnames;
|
|
my %structs;
|
|
|
|
my @fnames;
|
|
my @fnames_no_prefix;
|
|
my %vdecl_hash;
|
|
my @vdecls;
|
|
|
|
if( ! $opt_X ){ # use XS, unless it was disabled
|
|
open(XS, ">$modfname.xs") || die "Can't create $ext$modpname/$modfname.xs: $!\n";
|
|
if ($opt_x) {
|
|
require Config; # Run-time directive
|
|
warn "Scanning typemaps...\n";
|
|
get_typemap();
|
|
my @td;
|
|
my @good_td;
|
|
my $addflags = $opt_F || '';
|
|
|
|
foreach my $filename (@path_h) {
|
|
my $c;
|
|
my $filter;
|
|
|
|
if ($fullpath{$filename} =~ /,/) {
|
|
$filename = $`;
|
|
$filter = $';
|
|
}
|
|
warn "Scanning $filename for functions...\n";
|
|
$c = new C::Scan 'filename' => $filename, 'filename_filter' => $filter,
|
|
'add_cppflags' => $addflags, 'c_styles' => [qw(C++ C9X)];
|
|
$c->set('includeDirs' => ["$Config::Config{archlib}/CORE"]);
|
|
|
|
push @$fdecls_parsed, @{ $c->get('parsed_fdecls') };
|
|
push(@$fdecls, @{$c->get('fdecls')});
|
|
|
|
push @td, @{$c->get('typedefs_maybe')};
|
|
if ($opt_a) {
|
|
my $structs = $c->get('typedef_structs');
|
|
@structs{keys %$structs} = values %$structs;
|
|
}
|
|
|
|
if ($opt_m) {
|
|
%vdecl_hash = %{ $c->get('vdecl_hash') };
|
|
@vdecls = sort keys %vdecl_hash;
|
|
for (local $_ = 0; $_ < @vdecls; ++$_) {
|
|
my $var = $vdecls[$_];
|
|
my($type, $post) = @{ $vdecl_hash{$var} };
|
|
if (defined $post) {
|
|
warn "Can't handle variable '$type $var $post', skipping.\n";
|
|
splice @vdecls, $_, 1;
|
|
redo;
|
|
}
|
|
$type = normalize_type($type);
|
|
$vdecl_hash{$var} = $type;
|
|
}
|
|
}
|
|
|
|
unless ($tmask_all) {
|
|
warn "Scanning $filename for typedefs...\n";
|
|
my $td = $c->get('typedef_hash');
|
|
# eval {require 'dumpvar.pl'; ::dumpValue($td)} or warn $@ if $opt_d;
|
|
my @f_good_td = grep $td->{$_}[1] eq '', keys %$td;
|
|
push @good_td, @f_good_td;
|
|
@typedefs_pre{@f_good_td} = map $_->[0], @$td{@f_good_td};
|
|
}
|
|
}
|
|
{ local $" = '|';
|
|
$typedef_rex = qr(\b(?<!struct )(?:@good_td)\b) if @good_td;
|
|
}
|
|
%known_fnames = map @$_[1,3], @$fdecls_parsed; # [1,3] is NAME, FULLTEXT
|
|
if ($fmask) {
|
|
my @good;
|
|
for my $i (0..$#$fdecls_parsed) {
|
|
next unless $fdecls_parsed->[$i][1] =~ /$fmask/; # [1] is NAME
|
|
push @good, $i;
|
|
print "... Function $fdecls_parsed->[$i][1] passes -M mask.\n"
|
|
if $opt_d;
|
|
}
|
|
$fdecls = [@$fdecls[@good]];
|
|
$fdecls_parsed = [@$fdecls_parsed[@good]];
|
|
}
|
|
@fnames = sort map $_->[1], @$fdecls_parsed; # 1 is NAME
|
|
# Sort declarations:
|
|
{
|
|
my %h = map( ($_->[1], $_), @$fdecls_parsed);
|
|
$fdecls_parsed = [ @h{@fnames} ];
|
|
}
|
|
@fnames_no_prefix = @fnames;
|
|
@fnames_no_prefix
|
|
= sort map { ++$prefix{$_} if s/^$opt_p(?!\d)//; $_ } @fnames_no_prefix;
|
|
# Remove macros which expand to typedefs
|
|
print "Typedefs are @td.\n" if $opt_d;
|
|
my %td = map {($_, $_)} @td;
|
|
# Add some other possible but meaningless values for macros
|
|
for my $k (qw(char double float int long short unsigned signed void)) {
|
|
$td{"$_$k"} = "$_$k" for ('', 'signed ', 'unsigned ');
|
|
}
|
|
# eval {require 'dumpvar.pl'; ::dumpValue( [\@td, \%td] ); 1} or warn $@;
|
|
my $n = 0;
|
|
my %bad_macs;
|
|
while (keys %td > $n) {
|
|
$n = keys %td;
|
|
my ($k, $v);
|
|
while (($k, $v) = each %seen_define) {
|
|
# print("found '$k'=>'$v'\n"),
|
|
$bad_macs{$k} = $td{$k} = $td{$v} if exists $td{$v};
|
|
}
|
|
}
|
|
# Now %bad_macs contains names of bad macros
|
|
for my $k (keys %bad_macs) {
|
|
delete $const_names{$prefixless{$k}};
|
|
print "Ignoring macro $k which expands to a typedef name '$bad_macs{$k}'\n" if $opt_d;
|
|
}
|
|
}
|
|
}
|
|
my @const_names = sort keys %const_names;
|
|
|
|
open(PM, ">$modfname.pm") || die "Can't create $ext$modpname/$modfname.pm: $!\n";
|
|
|
|
$" = "\n\t";
|
|
warn "Writing $ext$modpname/$modfname.pm\n";
|
|
|
|
if ( $compat_version < 5.006 ) {
|
|
print PM <<"END";
|
|
package $module;
|
|
|
|
use $compat_version;
|
|
use strict;
|
|
END
|
|
}
|
|
else {
|
|
print PM <<"END";
|
|
package $module;
|
|
|
|
use 5.006;
|
|
use strict;
|
|
use warnings;
|
|
END
|
|
}
|
|
|
|
unless( $opt_X || $opt_c || $opt_A ){
|
|
# we'll have an AUTOLOAD(), and it will have $AUTOLOAD and
|
|
# will want Carp.
|
|
print PM <<'END';
|
|
use Carp;
|
|
END
|
|
}
|
|
|
|
print PM <<'END';
|
|
|
|
require Exporter;
|
|
END
|
|
|
|
print PM <<"END" if ! $opt_X; # use DynaLoader, unless XS was disabled
|
|
require DynaLoader;
|
|
END
|
|
|
|
|
|
# Are we using AutoLoader or not?
|
|
unless ($opt_A) { # no autoloader whatsoever.
|
|
unless ($opt_c) { # we're doing the AUTOLOAD
|
|
print PM "use AutoLoader;\n";
|
|
}
|
|
else {
|
|
print PM "use AutoLoader qw(AUTOLOAD);\n"
|
|
}
|
|
}
|
|
|
|
if ( $compat_version < 5.006 ) {
|
|
if ( $opt_X || $opt_c || $opt_A ) {
|
|
print PM 'use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);';
|
|
} else {
|
|
print PM 'use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $AUTOLOAD);';
|
|
}
|
|
}
|
|
|
|
# Determine @ISA.
|
|
my $myISA = 'our @ISA = qw(Exporter'; # We seem to always want this.
|
|
$myISA .= ' DynaLoader' unless $opt_X; # no XS
|
|
$myISA .= ');';
|
|
$myISA =~ s/^our // if $compat_version < 5.006;
|
|
|
|
print PM "\n$myISA\n\n";
|
|
|
|
my @exported_names = (@const_names, @fnames_no_prefix, map '$'.$_, @vdecls);
|
|
|
|
my $tmp=<<"END";
|
|
# Items to export into callers namespace by default. Note: do not export
|
|
# names by default without a very good reason. Use EXPORT_OK instead.
|
|
# Do not simply export all your public functions/methods/constants.
|
|
|
|
# This allows declaration use $module ':all';
|
|
# If you do not need this, moving things directly into \@EXPORT or \@EXPORT_OK
|
|
# will save memory.
|
|
our %EXPORT_TAGS = ( 'all' => [ qw(
|
|
@exported_names
|
|
) ] );
|
|
|
|
our \@EXPORT_OK = ( \@{ \$EXPORT_TAGS{'all'} } );
|
|
|
|
our \@EXPORT = qw(
|
|
@const_names
|
|
);
|
|
our \$VERSION = '$TEMPLATE_VERSION';
|
|
|
|
END
|
|
|
|
$tmp =~ s/^our //mg if $compat_version < 5.006;
|
|
print PM $tmp;
|
|
|
|
if (@vdecls) {
|
|
printf PM "our(@{[ join ', ', map '$'.$_, @vdecls ]});\n\n";
|
|
}
|
|
|
|
|
|
$tmp = ( $compat_version < 5.006 ? "" : "our \$AUTOLOAD;" );
|
|
print PM <<"END" unless $opt_c or $opt_X;
|
|
sub AUTOLOAD {
|
|
# This AUTOLOAD is used to 'autoload' constants from the constant()
|
|
# XS function. If a constant is not found then control is passed
|
|
# to the AUTOLOAD in AutoLoader.
|
|
|
|
my \$constname;
|
|
$tmp
|
|
(\$constname = \$AUTOLOAD) =~ s/.*:://;
|
|
croak "&$module::constant not defined" if \$constname eq 'constant';
|
|
my \$val = constant(\$constname, \@_ ? \$_[0] : 0);
|
|
if (\$! != 0) {
|
|
if (\$! =~ /Invalid/ || \$!{EINVAL}) {
|
|
\$AutoLoader::AUTOLOAD = \$AUTOLOAD;
|
|
goto &AutoLoader::AUTOLOAD;
|
|
}
|
|
else {
|
|
croak "Your vendor has not defined $module macro \$constname";
|
|
}
|
|
}
|
|
{
|
|
no strict 'refs';
|
|
# Fixed between 5.005_53 and 5.005_61
|
|
if (\$] >= 5.00561) {
|
|
*\$AUTOLOAD = sub () { \$val };
|
|
}
|
|
else {
|
|
*\$AUTOLOAD = sub { \$val };
|
|
}
|
|
}
|
|
goto &\$AUTOLOAD;
|
|
}
|
|
|
|
END
|
|
|
|
if( ! $opt_X ){ # print bootstrap, unless XS is disabled
|
|
print PM <<"END";
|
|
bootstrap $module \$VERSION;
|
|
END
|
|
}
|
|
|
|
# tying the variables can happen only after bootstrap
|
|
if (@vdecls) {
|
|
printf PM <<END;
|
|
{
|
|
@{[ join "\n", map " _tievar_$_(\$$_);", @vdecls ]}
|
|
}
|
|
|
|
END
|
|
}
|
|
|
|
my $after;
|
|
if( $opt_P ){ # if POD is disabled
|
|
$after = '__END__';
|
|
}
|
|
else {
|
|
$after = '=cut';
|
|
}
|
|
|
|
print PM <<"END";
|
|
|
|
# Preloaded methods go here.
|
|
END
|
|
|
|
print PM <<"END" unless $opt_A;
|
|
|
|
# Autoload methods go after $after, and are processed by the autosplit program.
|
|
END
|
|
|
|
print PM <<"END";
|
|
|
|
1;
|
|
__END__
|
|
END
|
|
|
|
my $author = "A. U. Thor";
|
|
my $email = '[email protected]';
|
|
|
|
my $revhist = '';
|
|
$revhist = <<EOT if $opt_C;
|
|
#
|
|
#=head1 HISTORY
|
|
#
|
|
#=over 8
|
|
#
|
|
#=item $TEMPLATE_VERSION
|
|
#
|
|
#Original version; created by h2xs $H2XS_VERSION with options
|
|
#
|
|
# @ARGS
|
|
#
|
|
#=back
|
|
#
|
|
EOT
|
|
|
|
my $exp_doc = <<EOD;
|
|
#
|
|
#=head2 EXPORT
|
|
#
|
|
#None by default.
|
|
#
|
|
EOD
|
|
|
|
if (@const_names and not $opt_P) {
|
|
$exp_doc .= <<EOD;
|
|
#=head2 Exportable constants
|
|
#
|
|
# @{[join "\n ", @const_names]}
|
|
#
|
|
EOD
|
|
}
|
|
|
|
if (defined $fdecls and @$fdecls and not $opt_P) {
|
|
$exp_doc .= <<EOD;
|
|
#=head2 Exportable functions
|
|
#
|
|
EOD
|
|
|
|
# $exp_doc .= <<EOD if $opt_p;
|
|
#When accessing these functions from Perl, prefix C<$opt_p> should be removed.
|
|
#
|
|
#EOD
|
|
$exp_doc .= <<EOD;
|
|
# @{[join "\n ", @known_fnames{@fnames}]}
|
|
#
|
|
EOD
|
|
}
|
|
|
|
my $meth_doc = '';
|
|
|
|
if ($opt_x && $opt_a) {
|
|
my($name, $struct);
|
|
$meth_doc .= accessor_docs($name, $struct)
|
|
while ($name, $struct) = each %structs;
|
|
}
|
|
|
|
my $pod = <<"END" unless $opt_P;
|
|
## Below is stub documentation for your module. You better edit it!
|
|
#
|
|
#=head1 NAME
|
|
#
|
|
#$module - Perl extension for blah blah blah
|
|
#
|
|
#=head1 SYNOPSIS
|
|
#
|
|
# use $module;
|
|
# blah blah blah
|
|
#
|
|
#=head1 DESCRIPTION
|
|
#
|
|
#Stub documentation for $module, created by h2xs. It looks like the
|
|
#author of the extension was negligent enough to leave the stub
|
|
#unedited.
|
|
#
|
|
#Blah blah blah.
|
|
$exp_doc$meth_doc$revhist
|
|
#=head1 AUTHOR
|
|
#
|
|
#$author, E<lt>${email}E<gt>
|
|
#
|
|
#=head1 SEE ALSO
|
|
#
|
|
#L<perl>.
|
|
#
|
|
#=cut
|
|
END
|
|
|
|
$pod =~ s/^\#//gm unless $opt_P;
|
|
print PM $pod unless $opt_P;
|
|
|
|
close PM;
|
|
|
|
|
|
if( ! $opt_X ){ # print XS, unless it is disabled
|
|
warn "Writing $ext$modpname/$modfname.xs\n";
|
|
|
|
print XS <<"END";
|
|
#include "EXTERN.h"
|
|
#include "perl.h"
|
|
#include "XSUB.h"
|
|
|
|
END
|
|
if( @path_h ){
|
|
foreach my $path_h (@path_h_ini) {
|
|
my($h) = $path_h;
|
|
$h =~ s#^/usr/include/##;
|
|
if ($^O eq 'VMS') { $h =~ s#.*vms\]#sys/# or $h =~ s#.*[:>\]]##; }
|
|
print XS qq{#include <$h>\n};
|
|
}
|
|
print XS "\n";
|
|
}
|
|
|
|
my %pointer_typedefs;
|
|
my %struct_typedefs;
|
|
|
|
sub td_is_pointer {
|
|
my $type = shift;
|
|
my $out = $pointer_typedefs{$type};
|
|
return $out if defined $out;
|
|
my $otype = $type;
|
|
$out = ($type =~ /\*$/);
|
|
# This converts only the guys which do not have trailing part in the typedef
|
|
if (not $out
|
|
and $typedef_rex and $type =~ s/($typedef_rex)/$typedefs_pre{$1}/go) {
|
|
$type = normalize_type($type);
|
|
print "Is-Pointer: Type mutation via typedefs: $otype ==> $type\n"
|
|
if $opt_d;
|
|
$out = td_is_pointer($type);
|
|
}
|
|
return ($pointer_typedefs{$otype} = $out);
|
|
}
|
|
|
|
sub td_is_struct {
|
|
my $type = shift;
|
|
my $out = $struct_typedefs{$type};
|
|
return $out if defined $out;
|
|
my $otype = $type;
|
|
$out = ($type =~ /^(struct|union)\b/) && !td_is_pointer($type);
|
|
# This converts only the guys which do not have trailing part in the typedef
|
|
if (not $out
|
|
and $typedef_rex and $type =~ s/($typedef_rex)/$typedefs_pre{$1}/go) {
|
|
$type = normalize_type($type);
|
|
print "Is-Struct: Type mutation via typedefs: $otype ==> $type\n"
|
|
if $opt_d;
|
|
$out = td_is_struct($type);
|
|
}
|
|
return ($struct_typedefs{$otype} = $out);
|
|
}
|
|
|
|
# Some macros will bomb if you try to return them from a double-returning func.
|
|
# Say, ((char *)0), or strlen (if somebody #define STRLEN strlen).
|
|
# Fortunately, we can detect both these cases...
|
|
sub protect_convert_to_double {
|
|
my $in = shift;
|
|
my $val;
|
|
return '' unless defined ($val = $seen_define{$in});
|
|
return '(IV)' if $known_fnames{$val};
|
|
# OUT_t of ((OUT_t)-1):
|
|
return '' unless $val =~ /^\s*(\(\s*)?\(\s*([^()]*?)\s*\)/;
|
|
td_is_pointer($2) ? '(IV)' : '';
|
|
}
|
|
|
|
# For each of the generated functions, length($pref) leading
|
|
# letters are already checked. Moreover, it is recommended that
|
|
# the generated functions uses switch on letter at offset at least
|
|
# $off + length($pref).
|
|
#
|
|
# The given list has length($pref) chars removed at front, it is
|
|
# guarantied that $off leading chars in the rest are the same for all
|
|
# elts of the list.
|
|
#
|
|
# Returns: how at which offset it was decided to make a switch, or -1 if none.
|
|
|
|
sub write_const;
|
|
|
|
sub write_const {
|
|
my ($fh, $pref, $off, $list) = (shift,shift,shift,shift);
|
|
my %leading;
|
|
my $offarg = length $pref;
|
|
|
|
if (@$list == 0) { # Can happen on the initial iteration only
|
|
print $fh <<"END";
|
|
static double
|
|
constant(char *name, int len, int arg)
|
|
{
|
|
errno = EINVAL;
|
|
return 0;
|
|
}
|
|
END
|
|
return -1;
|
|
}
|
|
|
|
if (@$list == 1) { # Can happen on the initial iteration only
|
|
my $protect = protect_convert_to_double("$pref$list->[0]");
|
|
|
|
print $fh <<"END";
|
|
static double
|
|
constant(char *name, int len, int arg)
|
|
{
|
|
errno = 0;
|
|
if (strEQ(name + $offarg, "$list->[0]")) { /* $pref removed */
|
|
#ifdef $pref$list->[0]
|
|
return $protect$pref$list->[0];
|
|
#else
|
|
errno = ENOENT;
|
|
return 0;
|
|
#endif
|
|
}
|
|
errno = EINVAL;
|
|
return 0;
|
|
}
|
|
END
|
|
return -1;
|
|
}
|
|
|
|
for my $n (@$list) {
|
|
my $c = substr $n, $off, 1;
|
|
$leading{$c} = [] unless exists $leading{$c};
|
|
push @{$leading{$c}}, substr $n, $off + 1;
|
|
}
|
|
|
|
if (keys(%leading) == 1) {
|
|
return 1 + write_const $fh, $pref, $off + 1, $list;
|
|
}
|
|
|
|
my $leader = substr $list->[0], 0, $off;
|
|
foreach my $letter (keys %leading) {
|
|
write_const $fh, "$pref$leader$letter", 0, $leading{$letter}
|
|
if @{$leading{$letter}} > 1;
|
|
}
|
|
|
|
my $npref = "_$pref";
|
|
$npref = '' if $pref eq '';
|
|
|
|
print $fh <<"END";
|
|
static double
|
|
constant$npref(char *name, int len, int arg)
|
|
{
|
|
END
|
|
|
|
print $fh <<"END" if $npref eq '';
|
|
errno = 0;
|
|
END
|
|
|
|
if ($off) {
|
|
my $null = 0;
|
|
|
|
foreach my $letter (keys %leading) {
|
|
if ($letter eq '') {
|
|
$null = 1;
|
|
last;
|
|
}
|
|
}
|
|
|
|
my $cmp = $null ? '>' : '>=';
|
|
|
|
print $fh <<"END"
|
|
if ($offarg + $off $cmp len ) {
|
|
errno = EINVAL;
|
|
return 0;
|
|
}
|
|
END
|
|
}
|
|
|
|
print $fh <<"END";
|
|
switch (name[$offarg + $off]) {
|
|
END
|
|
|
|
foreach my $letter (sort keys %leading) {
|
|
my $let = $letter;
|
|
$let = '\0' if $letter eq '';
|
|
|
|
print $fh <<EOP;
|
|
case '$let':
|
|
EOP
|
|
if (@{$leading{$letter}} > 1) {
|
|
# It makes sense to call a function
|
|
if ($off) {
|
|
print $fh <<EOP;
|
|
if (!strnEQ(name + $offarg,"$leader", $off))
|
|
break;
|
|
EOP
|
|
}
|
|
print $fh <<EOP;
|
|
return constant_$pref$leader$letter(name, len, arg);
|
|
EOP
|
|
}
|
|
else {
|
|
# Do it ourselves
|
|
my $protect
|
|
= protect_convert_to_double("$pref$leader$letter$leading{$letter}[0]");
|
|
|
|
print $fh <<EOP;
|
|
if (strEQ(name + $offarg, "$leader$letter$leading{$letter}[0]")) { /* $pref removed */
|
|
#ifdef $pref$leader$letter$leading{$letter}[0]
|
|
return $protect$pref$leader$letter$leading{$letter}[0];
|
|
#else
|
|
goto not_there;
|
|
#endif
|
|
}
|
|
EOP
|
|
}
|
|
}
|
|
print $fh <<"END";
|
|
}
|
|
errno = EINVAL;
|
|
return 0;
|
|
|
|
not_there:
|
|
errno = ENOENT;
|
|
return 0;
|
|
}
|
|
|
|
END
|
|
|
|
}
|
|
|
|
if( ! $opt_c ) {
|
|
print XS <<"END";
|
|
static int
|
|
not_here(char *s)
|
|
{
|
|
croak("$module::%s not implemented on this architecture", s);
|
|
return -1;
|
|
}
|
|
|
|
END
|
|
|
|
write_const(\*XS, '', 0, \@const_names);
|
|
}
|
|
|
|
print_tievar_subs(\*XS, $_, $vdecl_hash{$_}) for @vdecls;
|
|
|
|
my $prefix;
|
|
$prefix = "PREFIX = $opt_p" if defined $opt_p;
|
|
|
|
# Now switch from C to XS by issuing the first MODULE declaration:
|
|
print XS <<"END";
|
|
|
|
MODULE = $module PACKAGE = $module $prefix
|
|
|
|
END
|
|
|
|
foreach (sort keys %const_xsub) {
|
|
print XS <<"END";
|
|
char *
|
|
$_()
|
|
|
|
CODE:
|
|
#ifdef $_
|
|
RETVAL = $_;
|
|
#else
|
|
croak("Your vendor has not defined the $module macro $_");
|
|
#endif
|
|
|
|
OUTPUT:
|
|
RETVAL
|
|
|
|
END
|
|
}
|
|
|
|
# If a constant() function was written then output a corresponding
|
|
# XS declaration:
|
|
print XS <<"END" unless $opt_c;
|
|
|
|
double
|
|
constant(sv,arg)
|
|
PREINIT:
|
|
STRLEN len;
|
|
INPUT:
|
|
SV * sv
|
|
char * s = SvPV(sv, len);
|
|
int arg
|
|
CODE:
|
|
RETVAL = constant(s,len,arg);
|
|
OUTPUT:
|
|
RETVAL
|
|
|
|
END
|
|
|
|
my %seen_decl;
|
|
my %typemap;
|
|
|
|
sub print_decl {
|
|
my $fh = shift;
|
|
my $decl = shift;
|
|
my ($type, $name, $args) = @$decl;
|
|
return if $seen_decl{$name}++; # Need to do the same for docs as well?
|
|
|
|
my @argnames = map {$_->[1]} @$args;
|
|
my @argtypes = map { normalize_type( $_->[0], 1 ) } @$args;
|
|
if ($opt_k) {
|
|
s/^\s*const\b\s*// for @argtypes;
|
|
}
|
|
my @argarrays = map { $_->[4] || '' } @$args;
|
|
my $numargs = @$args;
|
|
if ($numargs and $argtypes[-1] eq '...') {
|
|
$numargs--;
|
|
$argnames[-1] = '...';
|
|
}
|
|
local $" = ', ';
|
|
$type = normalize_type($type, 1);
|
|
|
|
print $fh <<"EOP";
|
|
|
|
$type
|
|
$name(@argnames)
|
|
EOP
|
|
|
|
for my $arg (0 .. $numargs - 1) {
|
|
print $fh <<"EOP";
|
|
$argtypes[$arg] $argnames[$arg]$argarrays[$arg]
|
|
EOP
|
|
}
|
|
}
|
|
|
|
sub print_tievar_subs {
|
|
my($fh, $name, $type) = @_;
|
|
print $fh <<END;
|
|
I32
|
|
_get_$name(IV index, SV *sv) {
|
|
dSP;
|
|
PUSHMARK(SP);
|
|
XPUSHs(sv);
|
|
PUTBACK;
|
|
(void)call_pv("$module\::_get_$name", G_DISCARD);
|
|
return (I32)0;
|
|
}
|
|
|
|
I32
|
|
_set_$name(IV index, SV *sv) {
|
|
dSP;
|
|
PUSHMARK(SP);
|
|
XPUSHs(sv);
|
|
PUTBACK;
|
|
(void)call_pv("$module\::_set_$name", G_DISCARD);
|
|
return (I32)0;
|
|
}
|
|
|
|
END
|
|
}
|
|
|
|
sub print_tievar_xsubs {
|
|
my($fh, $name, $type) = @_;
|
|
print $fh <<END;
|
|
void
|
|
_tievar_$name(sv)
|
|
SV* sv
|
|
PREINIT:
|
|
struct ufuncs uf;
|
|
CODE:
|
|
uf.uf_val = &_get_$name;
|
|
uf.uf_set = &_set_$name;
|
|
uf.uf_index = (IV)&_get_$name;
|
|
sv_magic(sv, 0, 'U', (char*)&uf, sizeof(uf));
|
|
|
|
void
|
|
_get_$name(THIS)
|
|
$type THIS = NO_INIT
|
|
CODE:
|
|
THIS = $name;
|
|
OUTPUT:
|
|
SETMAGIC: DISABLE
|
|
THIS
|
|
|
|
void
|
|
_set_$name(THIS)
|
|
$type THIS
|
|
CODE:
|
|
$name = THIS;
|
|
|
|
END
|
|
}
|
|
|
|
sub print_accessors {
|
|
my($fh, $name, $struct) = @_;
|
|
return unless defined $struct && $name !~ /\s|_ANON/;
|
|
$name = normalize_type($name);
|
|
my $ptrname = normalize_type("$name *");
|
|
print $fh <<"EOF";
|
|
|
|
MODULE = $module PACKAGE = ${name} $prefix
|
|
|
|
$name *
|
|
_to_ptr(THIS)
|
|
$name THIS = NO_INIT
|
|
PROTOTYPE: \$
|
|
CODE:
|
|
if (sv_derived_from(ST(0), "$name")) {
|
|
STRLEN len;
|
|
char *s = SvPV((SV*)SvRV(ST(0)), len);
|
|
if (len != sizeof(THIS))
|
|
croak("Size \%d of packed data != expected \%d",
|
|
len, sizeof(THIS));
|
|
RETVAL = ($name *)s;
|
|
}
|
|
else
|
|
croak("THIS is not of type $name");
|
|
OUTPUT:
|
|
RETVAL
|
|
|
|
$name
|
|
new(CLASS)
|
|
char *CLASS = NO_INIT
|
|
PROTOTYPE: \$
|
|
CODE:
|
|
Zero((void*)&RETVAL, sizeof(RETVAL), char);
|
|
OUTPUT:
|
|
RETVAL
|
|
|
|
MODULE = $module PACKAGE = ${name}Ptr $prefix
|
|
|
|
EOF
|
|
my @items = @$struct;
|
|
while (@items) {
|
|
my $item = shift @items;
|
|
if ($item->[0] =~ /_ANON/) {
|
|
if (defined $item->[2]) {
|
|
push @items, map [
|
|
@$_[0, 1], "$item->[2]_$_->[2]", "$item->[2].$_->[2]",
|
|
], @{ $structs{$item->[0]} };
|
|
} else {
|
|
push @items, @{ $structs{$item->[0]} };
|
|
}
|
|
} else {
|
|
my $type = normalize_type($item->[0]);
|
|
my $ttype = $structs{$type} ? normalize_type("$type *") : $type;
|
|
print $fh <<"EOF";
|
|
$ttype
|
|
$item->[2](THIS, __value = NO_INIT)
|
|
$ptrname THIS
|
|
$type __value
|
|
PROTOTYPE: \$;\$
|
|
CODE:
|
|
if (items > 1)
|
|
THIS->$item->[-1] = __value;
|
|
RETVAL = @{[
|
|
$type eq $ttype ? "THIS->$item->[-1]" : "&(THIS->$item->[-1])"
|
|
]};
|
|
OUTPUT:
|
|
RETVAL
|
|
|
|
EOF
|
|
}
|
|
}
|
|
}
|
|
|
|
sub accessor_docs {
|
|
my($name, $struct) = @_;
|
|
return unless defined $struct && $name !~ /\s|_ANON/;
|
|
$name = normalize_type($name);
|
|
my $ptrname = $name . 'Ptr';
|
|
my @items = @$struct;
|
|
my @list;
|
|
while (@items) {
|
|
my $item = shift @items;
|
|
if ($item->[0] =~ /_ANON/) {
|
|
if (defined $item->[2]) {
|
|
push @items, map [
|
|
@$_[0, 1], "$item->[2]_$_->[2]", "$item->[2].$_->[2]",
|
|
], @{ $structs{$item->[0]} };
|
|
} else {
|
|
push @items, @{ $structs{$item->[0]} };
|
|
}
|
|
} else {
|
|
push @list, $item->[2];
|
|
}
|
|
}
|
|
my $methods = (join '(...)>, C<', @list) . '(...)';
|
|
|
|
my $pod = <<"EOF";
|
|
#
|
|
#=head2 Object and class methods for C<$name>/C<$ptrname>
|
|
#
|
|
#The principal Perl representation of a C object of type C<$name> is an
|
|
#object of class C<$ptrname> which is a reference to an integer
|
|
#representation of a C pointer. To create such an object, one may use
|
|
#a combination
|
|
#
|
|
# my \$buffer = $name->new();
|
|
# my \$obj = \$buffer->_to_ptr();
|
|
#
|
|
#This exersizes the following two methods, and an additional class
|
|
#C<$name>, the internal representation of which is a reference to a
|
|
#packed string with the C structure. Keep in mind that \$buffer should
|
|
#better survive longer than \$obj.
|
|
#
|
|
#=over
|
|
#
|
|
#=item C<\$object_of_type_$name-E<gt>_to_ptr()>
|
|
#
|
|
#Converts an object of type C<$name> to an object of type C<$ptrname>.
|
|
#
|
|
#=item C<$name-E<gt>new()>
|
|
#
|
|
#Creates an empty object of type C<$name>. The corresponding packed
|
|
#string is zeroed out.
|
|
#
|
|
#=item C<$methods>
|
|
#
|
|
#return the current value of the corresponding element if called
|
|
#without additional arguments. Set the element to the supplied value
|
|
#(and return the new value) if called with an additional argument.
|
|
#
|
|
#Applicable to objects of type C<$ptrname>.
|
|
#
|
|
#=back
|
|
#
|
|
EOF
|
|
$pod =~ s/^\#//gm;
|
|
return $pod;
|
|
}
|
|
|
|
# Should be called before any actual call to normalize_type().
|
|
sub get_typemap {
|
|
# We do not want to read ./typemap by obvios reasons.
|
|
my @tm = qw(../../../typemap ../../typemap ../typemap);
|
|
my $stdtypemap = "$Config::Config{privlib}/ExtUtils/typemap";
|
|
unshift @tm, $stdtypemap;
|
|
my $proto_re = "[" . quotemeta('\$%&*@;') . "]" ;
|
|
|
|
# Start with useful default values
|
|
$typemap{float} = 'T_DOUBLE';
|
|
|
|
foreach my $typemap (@tm) {
|
|
next unless -e $typemap ;
|
|
# skip directories, binary files etc.
|
|
warn " Scanning $typemap\n";
|
|
warn("Warning: ignoring non-text typemap file '$typemap'\n"), next
|
|
unless -T $typemap ;
|
|
open(TYPEMAP, $typemap)
|
|
or warn ("Warning: could not open typemap file '$typemap': $!\n"), next;
|
|
my $mode = 'Typemap';
|
|
while (<TYPEMAP>) {
|
|
next if /^\s*\#/;
|
|
if (/^INPUT\s*$/) { $mode = 'Input'; next; }
|
|
elsif (/^OUTPUT\s*$/) { $mode = 'Output'; next; }
|
|
elsif (/^TYPEMAP\s*$/) { $mode = 'Typemap'; next; }
|
|
elsif ($mode eq 'Typemap') {
|
|
next if /^\s*($|\#)/ ;
|
|
my ($type, $image);
|
|
if ( ($type, $image) =
|
|
/^\s*(.*?\S)\s+(\S+)\s*($proto_re*)\s*$/o
|
|
# This may reference undefined functions:
|
|
and not ($image eq 'T_PACKED' and $typemap eq $stdtypemap)) {
|
|
$typemap{normalize_type($type)} = $image;
|
|
}
|
|
}
|
|
}
|
|
close(TYPEMAP) or die "Cannot close $typemap: $!";
|
|
}
|
|
%std_types = %types_seen;
|
|
%types_seen = ();
|
|
}
|
|
|
|
|
|
sub normalize_type { # Second arg: do not strip const's before \*
|
|
my $type = shift;
|
|
my $do_keep_deep_const = shift;
|
|
# If $do_keep_deep_const this is heuristical only
|
|
my $keep_deep_const = ($do_keep_deep_const ? '\b(?![^(,)]*\*)' : '');
|
|
my $ignore_mods
|
|
= "(?:\\b(?:(?:__const__|const)$keep_deep_const|static|inline|__inline__)\\b\\s*)*";
|
|
if ($do_keep_deep_const) { # Keep different compiled /RExen/o separately!
|
|
$type =~ s/$ignore_mods//go;
|
|
}
|
|
else {
|
|
$type =~ s/$ignore_mods//go;
|
|
}
|
|
$type =~ s/([^\s\w])/ \1 /g;
|
|
$type =~ s/\s+$//;
|
|
$type =~ s/^\s+//;
|
|
$type =~ s/\s+/ /g;
|
|
$type =~ s/\* (?=\*)/*/g;
|
|
$type =~ s/\. \. \./.../g;
|
|
$type =~ s/ ,/,/g;
|
|
$types_seen{$type}++
|
|
unless $type eq '...' or $type eq 'void' or $std_types{$type};
|
|
$type;
|
|
}
|
|
|
|
my $need_opaque;
|
|
|
|
sub assign_typemap_entry {
|
|
my $type = shift;
|
|
my $otype = $type;
|
|
my $entry;
|
|
if ($tmask and $type =~ /$tmask/) {
|
|
print "Type $type matches -o mask\n" if $opt_d;
|
|
$entry = (td_is_struct($type) ? "T_OPAQUE_STRUCT" : "T_PTROBJ");
|
|
}
|
|
elsif ($typedef_rex and $type =~ s/($typedef_rex)/$typedefs_pre{$1}/go) {
|
|
$type = normalize_type $type;
|
|
print "Type mutation via typedefs: $otype ==> $type\n" if $opt_d;
|
|
$entry = assign_typemap_entry($type);
|
|
}
|
|
$entry ||= $typemap{$otype}
|
|
|| (td_is_struct($type) ? "T_OPAQUE_STRUCT" : "T_PTROBJ");
|
|
$typemap{$otype} = $entry;
|
|
$need_opaque = 1 if $entry eq "T_OPAQUE_STRUCT";
|
|
return $entry;
|
|
}
|
|
|
|
for (@vdecls) {
|
|
print_tievar_xsubs(\*XS, $_, $vdecl_hash{$_});
|
|
}
|
|
|
|
if ($opt_x) {
|
|
for my $decl (@$fdecls_parsed) { print_decl(\*XS, $decl) }
|
|
if ($opt_a) {
|
|
while (my($name, $struct) = each %structs) {
|
|
print_accessors(\*XS, $name, $struct);
|
|
}
|
|
}
|
|
}
|
|
|
|
close XS;
|
|
|
|
if (%types_seen) {
|
|
my $type;
|
|
warn "Writing $ext$modpname/typemap\n";
|
|
open TM, ">typemap" or die "Cannot open typemap file for write: $!";
|
|
|
|
for $type (sort keys %types_seen) {
|
|
my $entry = assign_typemap_entry $type;
|
|
print TM $type, "\t" x (5 - int((length $type)/8)), "\t$entry\n"
|
|
}
|
|
|
|
print TM <<'EOP' if $need_opaque; # Older Perls do not have correct entry
|
|
#############################################################################
|
|
INPUT
|
|
T_OPAQUE_STRUCT
|
|
if (sv_derived_from($arg, \"${ntype}\")) {
|
|
STRLEN len;
|
|
char *s = SvPV((SV*)SvRV($arg), len);
|
|
|
|
if (len != sizeof($var))
|
|
croak(\"Size %d of packed data != expected %d\",
|
|
len, sizeof($var));
|
|
$var = *($type *)s;
|
|
}
|
|
else
|
|
croak(\"$var is not of type ${ntype}\")
|
|
#############################################################################
|
|
OUTPUT
|
|
T_OPAQUE_STRUCT
|
|
sv_setref_pvn($arg, \"${ntype}\", (char *)&$var, sizeof($var));
|
|
EOP
|
|
|
|
close TM or die "Cannot close typemap file for write: $!";
|
|
}
|
|
|
|
} # if( ! $opt_X )
|
|
|
|
warn "Writing $ext$modpname/Makefile.PL\n";
|
|
open(PL, ">Makefile.PL") || die "Can't create $ext$modpname/Makefile.PL: $!\n";
|
|
|
|
print PL <<END;
|
|
use ExtUtils::MakeMaker;
|
|
# See lib/ExtUtils/MakeMaker.pm for details of how to influence
|
|
# the contents of the Makefile that is written.
|
|
WriteMakefile(
|
|
'NAME' => '$module',
|
|
'VERSION_FROM' => '$modfname.pm', # finds \$VERSION
|
|
'PREREQ_PM' => {}, # e.g., Module::Name => 1.1
|
|
(\$] >= 5.005 ? ## Add these new keywords supported since 5.005
|
|
(ABSTRACT_FROM => '$modfname.pm', # retrieve abstract from module
|
|
AUTHOR => '$author <$email>') : ()),
|
|
END
|
|
if (!$opt_X) { # print C stuff, unless XS is disabled
|
|
$opt_F = '' unless defined $opt_F;
|
|
my $I = (((glob '*.h') || (glob '*.hh')) ? '-I.' : '');
|
|
my $Ihelp = ($I ? '-I. ' : '');
|
|
my $Icomment = ($I ? '' : <<EOC);
|
|
# Insert -I. if you add *.h files later:
|
|
EOC
|
|
|
|
print PL <<END;
|
|
'LIBS' => ['$extralibs'], # e.g., '-lm'
|
|
'DEFINE' => '$opt_F', # e.g., '-DHAVE_SOMETHING'
|
|
$Icomment 'INC' => '$I', # e.g., '$Ihelp-I/usr/include/other'
|
|
END
|
|
|
|
my $C = grep $_ ne "$modfname.c", (glob '*.c'), (glob '*.cc'), (glob '*.C');
|
|
my $Cpre = ($C ? '' : '# ');
|
|
my $Ccomment = ($C ? '' : <<EOC);
|
|
# Un-comment this if you add C files to link with later:
|
|
EOC
|
|
|
|
print PL <<END;
|
|
$Ccomment $Cpre\'OBJECT' => '\$(O_FILES)', # link all the C files too
|
|
END
|
|
}
|
|
print PL ");\n";
|
|
close(PL) || die "Can't close $ext$modpname/Makefile.PL: $!\n";
|
|
|
|
# Create a simple README since this is a CPAN requirement
|
|
# and it doesnt hurt to have one
|
|
warn "Writing $ext$modpname/README\n";
|
|
open(RM, ">README") || die "Can't create $ext$modpname/README:$!\n";
|
|
my $thisyear = (gmtime)[5] + 1900;
|
|
my $rmhead = "$modpname version $TEMPLATE_VERSION";
|
|
my $rmheadeq = "=" x length($rmhead);
|
|
print RM <<_RMEND_;
|
|
$rmhead
|
|
$rmheadeq
|
|
|
|
The README is used to introduce the module and provide instructions on
|
|
how to install the module, any machine dependencies it may have (for
|
|
example C compilers and installed libraries) and any other information
|
|
that should be provided before the module is installed.
|
|
|
|
A README file is required for CPAN modules since CPAN extracts the
|
|
README file from a module distribution so that people browsing the
|
|
archive can use it get an idea of the modules uses. It is usually a
|
|
good idea to provide version information here so that people can
|
|
decide whether fixes for the module are worth downloading.
|
|
|
|
INSTALLATION
|
|
|
|
To install this module type the following:
|
|
|
|
perl Makefile.PL
|
|
make
|
|
make test
|
|
make install
|
|
|
|
DEPENDENCIES
|
|
|
|
This module requires these other modules and libraries:
|
|
|
|
blah blah blah
|
|
|
|
COPYRIGHT AND LICENCE
|
|
|
|
Put the correct copyright and licence information here.
|
|
|
|
Copyright (C) $thisyear $author
|
|
|
|
This library is free software; you can redistribute it and/or modify
|
|
it under the same terms as Perl itself.
|
|
|
|
_RMEND_
|
|
close(RM) || die "Can't close $ext$modpname/README: $!\n";
|
|
|
|
warn "Writing $ext$modpname/test.pl\n";
|
|
open(EX, ">test.pl") || die "Can't create $ext$modpname/test.pl: $!\n";
|
|
print EX <<'_END_';
|
|
# Before `make install' is performed this script should be runnable with
|
|
# `make test'. After `make install' it should work as `perl test.pl'
|
|
|
|
#########################
|
|
|
|
# change 'tests => 1' to 'tests => last_test_to_print';
|
|
|
|
use Test;
|
|
BEGIN { plan tests => 1 };
|
|
_END_
|
|
print EX <<_END_;
|
|
use $module;
|
|
_END_
|
|
print EX <<'_END_';
|
|
ok(1); # If we made it this far, we're ok.
|
|
|
|
#########################
|
|
|
|
# Insert your test code below, the Test module is use()ed here so read
|
|
# its man page ( perldoc Test ) for help writing this test script.
|
|
|
|
_END_
|
|
close(EX) || die "Can't close $ext$modpname/test.pl: $!\n";
|
|
|
|
unless ($opt_C) {
|
|
warn "Writing $ext$modpname/Changes\n";
|
|
$" = ' ';
|
|
open(EX, ">Changes") || die "Can't create $ext$modpname/Changes: $!\n";
|
|
@ARGS = map {/[\s\"\'\`\$*?^|&<>\[\]\{\}\(\)]/ ? "'$_'" : $_} @ARGS;
|
|
print EX <<EOP;
|
|
Revision history for Perl extension $module.
|
|
|
|
$TEMPLATE_VERSION @{[scalar localtime]}
|
|
\t- original version; created by h2xs $H2XS_VERSION with options
|
|
\t\t@ARGS
|
|
|
|
EOP
|
|
close(EX) || die "Can't close $ext$modpname/Changes: $!\n";
|
|
}
|
|
|
|
warn "Writing $ext$modpname/MANIFEST\n";
|
|
open(MANI,'>MANIFEST') or die "Can't create MANIFEST: $!";
|
|
my @files = <*>;
|
|
if (!@files) {
|
|
eval {opendir(D,'.');};
|
|
unless ($@) { @files = readdir(D); closedir(D); }
|
|
}
|
|
if (!@files) { @files = map {chomp && $_} `ls`; }
|
|
if ($^O eq 'VMS') {
|
|
foreach (@files) {
|
|
# Clip trailing '.' for portability -- non-VMS OSs don't expect it
|
|
s%\.$%%;
|
|
# Fix up for case-sensitive file systems
|
|
s/$modfname/$modfname/i && next;
|
|
$_ = "\U$_" if $_ eq 'manifest' or $_ eq 'changes';
|
|
$_ = 'Makefile.PL' if $_ eq 'makefile.pl';
|
|
}
|
|
}
|
|
print MANI join("\n",@files), "\n";
|
|
close MANI;
|
|
|
|
__END__
|
|
:endofperl
|