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530 lines
20 KiB
530 lines
20 KiB
#!/usr/bin/env perl
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require 5.003;
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use warnings;
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# Global settings
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# (The max_idx parameter is the only thing that needs to be changed when adding
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# support for a new major release. If support for a prior major release
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# is added (like support for 1.4, etc), the min_sup_idx parameter will
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# need to be decremented.)
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# Max. library "index" (0 = v1.0, 1 = 1.2, 2 = 1.4, 3 = 1.6, 4 = 1.8, 5 = 1.10, 6 = 1.12, 7 = 1.14, etc)
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$max_idx = 7;
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# Min. supported previous library version "index" (0 = v1.0, 1 = 1.2, etc)
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$min_sup_idx = 3;
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# Number of spaces to indent preprocessor commands inside ifdefs
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$indent = 2;
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#
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# Copyright by The HDF Group.
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# All rights reserved.
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#
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# This file is part of HDF5. The full HDF5 copyright notice, including
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# terms governing use, modification, and redistribution, is contained in
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# the COPYING file, which can be found at the root of the source code
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# distribution tree, or in https://www.hdfgroup.org/licenses.
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# If you do not have access to either file, you may request a copy from
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# help@hdfgroup.org.
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#
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# Create public symbol version headers
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#
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# Read in the public symbol version description text file and create the
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# appropriate headers needed by the library.
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#
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# Programmer: Quincey Koziol
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# Creation Date: 2007/07/10
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##############################################################################
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# Print the copyright into an open file
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#
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sub print_copyright ($) {
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my $fh = shift;
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print $fh "/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n";
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print $fh " * Copyright by The HDF Group. *\n";
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print $fh " * All rights reserved. *\n";
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print $fh " * *\n";
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print $fh " * This file is part of HDF5. The full HDF5 copyright notice, including *\n";
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print $fh " * terms governing use, modification, and redistribution, is contained in *\n";
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print $fh " * the COPYING file, which can be found at the root of the source code *\n";
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print $fh " * distribution tree, or in https://www.hdfgroup.org/licenses. *\n";
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print $fh " * If you do not have access to either file, you may request a copy from *\n";
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print $fh " * help\@hdfgroup.org. *\n";
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print $fh " * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n";
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}
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##############################################################################
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# Print the "do not change this file" warning
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#
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sub print_warning ($) {
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my $fh = shift;
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print $fh "\n/* Generated automatically by bin/make_vers -- do not edit */\n";
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print $fh "/* Add new versioned symbols to H5vers.txt file */\n\n";
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}
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##############################################################################
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# Print start of ifdef's to prevent a file from being re-included
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#
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sub print_startprotect ($$) {
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my ($fh, $file) = @_;
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# Clip off the ".h" part of the name
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$file =~ s/(\w*)\.h/$1/;
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# Print the ifdef info
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print $fh "\n#ifndef ${file}_H\n";
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print $fh "#define ${file}_H\n";
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}
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##############################################################################
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# Print check for conflicting version macro settings
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#
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sub print_checkoptions ($) {
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my $fh = shift; # File handle for output file
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my $curr_idx; # Current API version index
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# Print the option checking
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print $fh "\n\n/* Issue error if contradicting macros have been defined. */\n";
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print $fh "/* (Can't use an older (deprecated) API version if deprecated symbols have been disabled) */\n";
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# Print the #ifdef
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print $fh "#if (";
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for $curr_idx ($min_sup_idx .. ($max_idx - 1)) {
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print $fh "defined(H5_USE_1", ($curr_idx * 2), "_API)";
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if($curr_idx < ($max_idx - 1)) {
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print $fh " || ";
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}
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}
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print $fh ") && defined(H5_NO_DEPRECATED_SYMBOLS)\n";
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# Print the error for bad API version chosen
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print $fh ' ' x $indent, "#error \"Can't choose old API versions when deprecated APIs are disabled\"\n";
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# Print the #endif
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print $fh "#endif /* (";
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for $curr_idx ($min_sup_idx .. ($max_idx - 1)) {
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print $fh "defined(H5_USE_1", ($curr_idx * 2), "_API)";
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if($curr_idx < ($max_idx - 1)) {
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print $fh " || ";
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}
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}
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print $fh ") && defined(H5_NO_DEPRECATED_SYMBOLS) */\n";
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}
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##############################################################################
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# Print "global" API version macro settings
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#
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sub print_globalapidefvers ($) {
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my $fh = shift; # File handle for output file
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my $curr_idx; # Current API version index
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# Print the descriptive comment
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print $fh "\n\n/* If a particular default \"global\" version of the library's interfaces is\n";
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print $fh " * chosen, set the corresponding version macro for API symbols.\n";
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print $fh " *\n";
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print $fh " */\n";
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for $curr_idx ($min_sup_idx .. ($max_idx - 1)) {
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# Print API version ifdef
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print $fh "\n#if defined(H5_USE_1", ($curr_idx * 2), "_API_DEFAULT) && !defined(H5_USE_1", ($curr_idx * 2), "_API)\n";
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# Print API version definition
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print $fh " " x $indent, "#define H5_USE_1", ($curr_idx * 2), "_API 1\n";
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# Print API version endif
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print $fh "#endif /* H5_USE_1", ($curr_idx * 2), "_API_DEFAULT && !H5_USE_1", ($curr_idx * 2), "_API */\n";
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}
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}
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##############################################################################
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# Print "global" API symbol version macro settings
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#
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sub print_globalapisymbolvers ($) {
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my $fh = shift; # File handle for output file
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my $curr_idx; # Current API version index
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# Print the descriptive comment
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print $fh "\n\n/* If a particular \"global\" version of the library's interfaces is chosen,\n";
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print $fh " * set the versions for the API symbols affected.\n";
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print $fh " *\n";
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print $fh " * Note: If an application has already chosen a particular version for an\n";
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print $fh " * API symbol, the individual API version macro takes priority.\n";
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print $fh " */\n";
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# Loop over supported older library APIs and define the appropriate macros
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for $curr_idx ($min_sup_idx .. ($max_idx - 1)) {
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# Print API version ifdef
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print $fh "\n#ifdef H5_USE_1", ($curr_idx * 2), "_API\n";
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# Print the version macro info for each function that is defined for
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# this API version
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print $fh "\n/*************/\n";
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print $fh "/* Functions */\n";
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print $fh "/*************/\n";
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for $name (sort keys %{$func_vers[$curr_idx]}) {
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print $fh "\n#if !defined(", $name, "_vers)\n";
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print $fh " " x $indent, "#define ", $name, "_vers $func_vers[$curr_idx]{$name}\n";
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print $fh "#endif /* !defined(", $name, "_vers) */\n";
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}
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# Print the version macro info for each typedef that is defined for
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# this API version
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print $fh "\n/************/\n";
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print $fh "/* Typedefs */\n";
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print $fh "/************/\n";
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for $name (sort keys %{$type_vers[$curr_idx]}) {
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print $fh "\n#if !defined(", $name, "_t_vers)\n";
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print $fh " " x $indent, "#define ", $name, "_t_vers $type_vers[$curr_idx]{$name}\n";
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print $fh "#endif /* !defined(", $name, "_t_vers) */\n";
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}
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# Print API version endif
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print $fh "\n#endif /* H5_USE_1", ($curr_idx * 2), "_API */\n";
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}
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}
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##############################################################################
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# Print "default" API version macro settings
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#
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sub print_defaultapivers ($) {
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my $fh = shift; # File handle for output file
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my $curr_name; # Current API function
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# Print the descriptive comment
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print $fh "\n\n/* Choose the correct version of each API symbol, defaulting to the latest\n";
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print $fh " * version of each. The \"best\" name for API parameters/data structures\n";
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print $fh " * that have changed definitions is also set. An error is issued for\n";
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print $fh " * specifying an invalid API version.\n";
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print $fh " */\n";
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# Loop over function names that are versioned and set up the version macros
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print $fh "\n/*************/\n";
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print $fh "/* Functions */\n";
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print $fh "/*************/\n";
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for $curr_name (sort keys %functions) {
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my $curr_vers_name; # Name of version macro for current function
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my $curr_vers; # Version of function
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my @param_list; # Typedefs for the function parameters
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# Set up variables for later use
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$curr_vers_name = $curr_name . "_vers";
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$curr_vers = $functions{$curr_name};
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# Split up parameter info
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@param_list = split(/\s*,\s*/, $func_params{$curr_name});
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#print "print_defaultapivers: param_list=(@param_list)\n";
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# Set up default/latest version name mapping
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print $fh "\n#if !defined($curr_vers_name) || $curr_vers_name == $curr_vers\n";
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print $fh " " x $indent, "#ifndef $curr_vers_name\n";
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print $fh " " x ($indent * 2), "#define $curr_vers_name $curr_vers\n";
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print $fh " " x $indent, "#endif /* $curr_vers_name */\n";
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print $fh " " x $indent, "#define $curr_name $curr_name$curr_vers\n";
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# Print function's dependent parameter types
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foreach(sort(@param_list)) {
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print $fh " " x $indent, "#define ${_}_t $_${curr_vers}_t\n";
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}
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# Loop to print earlier version name mappings
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$curr_vers--;
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while($curr_vers > 0) {
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print $fh "#elif $curr_vers_name == $curr_vers\n";
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print $fh " " x $indent, "#define $curr_name $curr_name$curr_vers\n";
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# Print function's dependent parameter types
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foreach(sort(@param_list)) {
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print $fh " " x $indent, "#define ${_}_t $_${curr_vers}_t\n";
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}
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$curr_vers--;
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}
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# Finish up with error for unknown version and endif
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print $fh "#else /* $curr_vers_name */\n";
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print $fh " " x $indent, "#error \"$curr_vers_name set to invalid value\"\n";
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print $fh "#endif /* $curr_vers_name */\n";
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}
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# Loop over typedefs that are versioned and set up the version macros
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print $fh "\n/************/\n";
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print $fh "/* Typedefs */\n";
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print $fh "/************/\n";
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for $curr_name (sort keys %typedefs) {
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my $curr_vers_name; # Name of version macro for current function
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my $curr_vers; # Version of function
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# Set up variables for later use
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$curr_vers_name = $curr_name . "_t_vers";
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$curr_vers = $typedefs{$curr_name};
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# Set up default/latest version name mapping
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print $fh "\n#if !defined($curr_vers_name) || $curr_vers_name == $curr_vers\n";
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print $fh " " x $indent, "#ifndef $curr_vers_name\n";
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print $fh " " x ($indent * 2), "#define $curr_vers_name $curr_vers\n";
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print $fh " " x $indent, "#endif /* $curr_vers_name */\n";
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print $fh " " x $indent, "#define ${curr_name}_t $curr_name${curr_vers}_t\n";
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# Loop to print earlier version name mappings
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$curr_vers--;
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while($curr_vers > 0) {
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print $fh "#elif $curr_vers_name == $curr_vers\n";
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print $fh " " x $indent, "#define ${curr_name}_t $curr_name${curr_vers}_t\n";
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$curr_vers--;
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}
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# Finish up with error for unknown version and endif
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print $fh "#else /* $curr_vers_name */\n";
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print $fh " " x $indent, "#error \"$curr_vers_name set to invalid value\"\n";
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print $fh "#endif /* $curr_vers_name */\n\n";
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}
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}
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##############################################################################
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# Print end of ifdef's to prevent a file from being re-included
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#
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sub print_endprotect ($$) {
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my ($fh, $file) = @_;
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# Clip off the ".h" part of the name
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$file =~ s/(\w*)\.h/$1/;
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# Print the endif info
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print $fh "#endif /* ${file}_H */\n\n";
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}
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##############################################################################
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# Parse a meaningful line (not a comment or blank line) into the appropriate
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# data structure
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#
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sub parse_line ($) {
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my $line = shift; # Get the line to parse
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# Parse API function lines
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#print "line=$line\n";
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if($line =~ /^\s*FUNCTION:/ || $line =~ /^\s*TYPEDEF:/) {
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my $name; # The name of the function
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my $params; # Typedefs for function parameters
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my $vers; # The version info for the function
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my @vers_list; # Version info, as a list
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my @vers_nums; # Version info, as a numeric list
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my $num_versions; # Number of versions for function
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my %sym_versions; # Versions for a symbol
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my $last_idx; # The previous version index seen for a function
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my $last_vers; # The previous version # seen for a function
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my $line_type; # Type of line we are parsing
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# Determine the type of the line to parse
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if($line =~ /^\s*FUNCTION:/) {
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$line_type = 1;
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# Get the function's name & version info
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($name, $params, $vers) = ($line =~ /^\s*FUNCTION:\s*(\w*);\s*(.*?)\s*;\s*(.*?)\s*$/);
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#print "parse_line: name='$name', params='$params', vers='$vers'\n";
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}
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elsif($line =~ /^\s*TYPEDEF:/) {
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$line_type = 2;
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# Get the typedefs's name & version info
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($name, $vers) = ($line =~ /^\s*TYPEDEF:\s*(\w*);\s*(.*?)\s*$/);
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#print "parse_line: name='$name', vers='$vers'\n";
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}
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#print "parse_line: line_type='$line_type'\n";
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# Check if the name already exists in the list of symbols
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if(exists($functions{$name}) || exists($typedefs{$name})) {
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die "duplicated symbol: $name";
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}
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# Check for no version info given
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if($vers eq "") {
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die "no version information: $name";
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}
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# Split up version info
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@vers_list = split(/\s*,\s*/, $vers);
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#print "parse_line: vers_list=(@vers_list)\n";
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# Parse the version list into numbers, checking for invalid input
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foreach(@vers_list) {
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my $vers_idx; # Index of version in array
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# Do some validation on the input
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# Note: v111 is allowed because H5O functions were prematurely versioned
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# in HDF5 1.10. Because users were affected by this, the versioning
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# was rescinded but the H5O version 2 functions were kept to be
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# called directly. Now that the version macros are added in 1.12,
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# along with a 3rd version of the H5O functions, the H5O function
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# version for default api=v110 should be version 1 to work correctly
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# with 1.10 applications that were using unversioned H5O functions,
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# and the H5O function version should be version 3 for default api=v112
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# (the default api version for 1.12). Allowing a v111 entry and
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# incrementing its index 13 lines below allows a version 2 that is
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# never accessed via the H5O function macros.
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if(!( $_ =~ /v1[02468]/ || $_ =~ /v11[02468]/ || $_ =~ /v111/ )) {
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die "bad version information: $name";
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}
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if(exists($sym_versions{$_})) {
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die "duplicate version information: $name";
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}
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# Store the versions for the function in a local hash table, indexed by the version
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$sym_versions{$_}=$_;
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#print "parse_line: _=$_\n";
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# Get the index of the version
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($vers_idx) = ($_ =~ /v1(\d+)/);
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if($vers_idx == 11) {
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$vers_idx++;
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}
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$vers_idx /= 2;
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#print "parse_line: vers_idx='$vers_idx'\n";
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push(@vers_nums, $vers_idx);
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}
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#print "parse_line: vers_nums=(@vers_nums)\n";
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# Check for invalid version info given
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$last_idx = -1;
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$last_vers = 1;
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foreach(sort(@vers_nums)) {
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#print "parse_line: _=$_ last_idx='$last_idx'\n";
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# Update intermediate versions of the library that included the API routine
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if($last_idx >= 0) {
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#print "parse_line: name='$name'\n";
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#print "parse_line: last_vers='$last_vers'\n";
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#print "parse_line: last_idx='$last_idx'\n";
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# Add the function to the list of API routines available in
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# different versions of the library
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while($last_idx <= $_) {
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if($line_type == 1) {
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$func_vers[$last_idx]{$name} = $last_vers;
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} elsif($line_type == 2) {
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$type_vers[$last_idx]{$name} = $last_vers;
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} else {
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die "unknown line type: $line";
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}
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$last_idx++;
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}
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# Increment the version # of the function
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$last_vers++;
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}
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# Keep track of last version index seen
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$last_idx = $_;
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}
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# Finish updating versions of the library that included the API routine
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if($last_idx >= 0) {
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#print "parse_line: max_idx='$max_idx'\n";
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# Add the function to the list of API routines available in
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# different versions of the library
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while($last_idx <= $max_idx) {
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if($line_type == 1) {
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$func_vers[$last_idx]{$name} = $last_vers;
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} elsif($line_type == 2) {
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$type_vers[$last_idx]{$name} = $last_vers;
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} else {
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die "unknown line type: $line";
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}
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$last_idx++;
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}
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}
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# Store the number of symbol versions in a hash table, indexed by the name
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if($line_type == 1) {
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$functions{$name} = $#vers_list + 1;
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# Store the function's parameter types for later
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$func_params{$name} = $params;
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} elsif($line_type == 2) {
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$typedefs{$name} = $#vers_list + 1;
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} else {
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die "unknown line type: $line";
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}
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}
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# Unknown keyword
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else {
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die "unknown keyword: $line";
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}
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}
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##############################################################################
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# Create the generated portion of the public header file
|
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#
|
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sub create_public ($) {
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my $prefix = shift; # Get the prefix for the generated file
|
|
my $file = "H5version.h"; # Name of file to generate
|
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my $name; # Name of function
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|
|
# Rename previous file
|
|
# rename "${prefix}${file}", "${prefix}${file}~" or die "unable to make backup";
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|
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# Open new header file
|
|
open HEADER, ">${prefix}${file}" or die "unable to modify source";
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|
|
|
# Create file contents
|
|
print_copyright(*HEADER);
|
|
print_warning(*HEADER);
|
|
print_startprotect(*HEADER, $file);
|
|
print_globalapidefvers(*HEADER);
|
|
print_checkoptions(*HEADER);
|
|
print_globalapisymbolvers(*HEADER);
|
|
print_defaultapivers(*HEADER);
|
|
print_endprotect(*HEADER, $file);
|
|
|
|
# Close header file
|
|
close HEADER;
|
|
}
|
|
|
|
##############################################################################
|
|
# Read symbol version file (given as command-line argument) in and process it
|
|
# into internal data structures, then create header files.
|
|
#
|
|
for $file (@ARGV) {
|
|
my $prefix; # Local prefix for generated files
|
|
|
|
#print "file = '$file'\n";
|
|
# Check for directory prefix on input file
|
|
if($file =~ /\//) {
|
|
($prefix) = ($file =~ /(^.*\/)/);
|
|
}
|
|
else {
|
|
$prefix = "";
|
|
}
|
|
#print "prefix = '$prefix'\n";
|
|
# Read in the entire file
|
|
open SOURCE, $file or die "$file: $!\n";
|
|
while ( defined ($line=<SOURCE>) ) {
|
|
# Skip blank lines and those lines whose first character is a '#'
|
|
if(!($line =~ /(^\s*#.*$)|(^\s*$)/)) {
|
|
# Construct data structures for later printing
|
|
parse_line($line);
|
|
}
|
|
}
|
|
close SOURCE;
|
|
|
|
# Create header files
|
|
print "Generating '", $prefix, "H5version.h'\n";
|
|
create_public($prefix);
|
|
|
|
#for $name (sort keys %functions) {
|
|
# print "functions{$name} = $functions{$name}\n";
|
|
#}
|
|
|
|
#for $i (0 .. $#func_vers) {
|
|
# my $vers_name; # Name of indexed version
|
|
# $vers_name = "v1." . ($i * 2);
|
|
# print "$vers_name functions: ";
|
|
# for $name (sort keys %{$func_vers[$i]}) {
|
|
# print "$name$func_vers[$i]{$name} ";
|
|
# }
|
|
# print "\n";
|
|
#}
|
|
|
|
}
|
|
|
|
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