| #!/usr/bin/env ruby |
| # Usage: output_directory xml_spec_file [xml_spec_file...] |
| # |
| $: << '..' |
| require 'cppgen' |
| |
| class CppGen |
| def session_methods |
| excludes = ["connection", "session", "file", "stream"] |
| gen_methods=@amqp.methods_on(@chassis).reject { |m| |
| excludes.include? m.parent.name or m.body_name.include?("010") |
| } |
| end |
| |
| def doxygen(m) |
| doxygen_comment { |
| genl m.doc |
| genl |
| m.fields_c.each { |f| |
| genl "@param #{f.cppname}" |
| genl f.doc if f.doc |
| genl |
| } |
| } |
| end |
| end |
| |
| # Sync vs. async APIs |
| module SyncAsync |
| def sync_prefix() @async ? "Async" : "" end |
| def sync_adjective() @async ? "asynchronous" : "synchronous" end |
| def sync_convert() @async ? "async" : "sync" end |
| |
| |
| def decl_ctor_opeq() |
| genl |
| genl "#{@classname}();" |
| genl "#{@classname}(const #{@version_base}& other);" |
| genl "#{@classname}& operator=(const #{@version_base}& other);" |
| end |
| |
| def defn_ctor_opeq(inline="") |
| genl |
| genl "#{inline} #{@classname}::#{@classname}() {}" |
| scope("#{inline} #{@classname}::#{@classname}(const #{@version_base}& other) {") { |
| genl "*this = other;" |
| } |
| scope("#{inline} #{@classname}& #{@classname}::operator=(const #{@version_base}& other) {") { |
| genl "impl = static_cast<const #{@classname}&>(other).impl;" |
| genl "return *this;" |
| } |
| end |
| end |
| |
| class ContentField # For extra content parameters |
| def cppname() "content" end |
| def signature() "const MethodContent& content" end |
| def sig_default() signature+"="+"DefaultContent(std::string())" end |
| def unpack() "p[arg::content|DefaultContent(std::string())]"; end |
| def doc() "Message content"; end |
| end |
| |
| class AmqpField |
| def unpack() "p[arg::#{cppname}|#{cpptype.default_value}]"; end |
| def sig_default() signature+"="+cpptype.default_value; end |
| end |
| |
| class AmqpMethod |
| def fields_c() content ? fields+[ContentField.new] : fields end |
| def param_names_c() fields_c.map { |f| f.cppname} end |
| def signature_c() fields_c.map { |f| f.signature }; end |
| def sig_c_default() fields_c.map { |f| f.sig_default }; end |
| def argpack_name() "#{parent.cppname}#{name.caps}Parameters"; end |
| def argpack_type() |
| "boost::parameter::parameters<" + |
| fields_c.map { |f| "arg::keyword_tags::"+f.cppname }.join(',') + |
| ">" |
| end |
| |
| def return_type(async) |
| if (async) |
| return "TypedResult<qpid::framing::#{result.cpptype.ret_by_val}>" if (result) |
| return "Completion" |
| else |
| return "qpid::framing::#{result.cpptype.ret_by_val}" if (result) |
| return "void" |
| end |
| end |
| |
| def session_function() "#{parent.name.lcaps}#{name.caps}"; end |
| end |
| |
| class SessionNoKeywordGen < CppGen |
| include SyncAsync |
| |
| def initialize(outdir, amqp, async) |
| super(outdir, amqp) |
| @async=async |
| @chassis="server" |
| @namespace,@classname,@file= |
| parse_classname "qpid::client::no_keyword::#{sync_prefix}Session_#{@amqp.version.bars}" |
| @version_base="SessionBase_#{@amqp.major}_#{@amqp.minor}" |
| end |
| |
| def generate() |
| h_file(@file) { |
| include "qpid/client/#{@version_base}.h" |
| namespace(@namespace) { |
| doxygen_comment { |
| genl "AMQP #{@amqp.version} #{sync_adjective} session API." |
| genl @amqp.class_("session").doc |
| # FIXME aconway 2008-05-23: additional doc on sync/async use. |
| } |
| cpp_class(@classname, "public #{@version_base}") { |
| public |
| decl_ctor_opeq() |
| session_methods.each { |m| |
| genl |
| doxygen(m) |
| args=m.sig_c_default.join(", ") |
| genl "#{m.return_type(@async)} #{m.session_function}(#{args});" |
| } |
| } |
| }} |
| |
| cpp_file(@file) { |
| include @classname |
| include "qpid/framing/all_method_bodies.h" |
| namespace(@namespace) { |
| genl "using namespace framing;" |
| session_methods.each { |m| |
| genl |
| sig=m.signature_c.join(", ") |
| func="#{@classname}::#{m.session_function}" |
| scope("#{m.return_type(@async)} #{func}(#{sig}) {") { |
| args=(["ProtocolVersion(#{@amqp.major},#{@amqp.minor})"]+m.param_names).join(", ") |
| genl "#{m.body_name} body(#{args});"; |
| genl "body.setSync(#{@async ? 'false':'true'});" |
| sendargs="body" |
| sendargs << ", content" if m.content |
| async_retval="#{m.return_type(true)}(impl->send(#{sendargs}), impl)" |
| if @async then |
| genl "return #{async_retval};" |
| else |
| if m.result |
| genl "return #{async_retval}.get();" |
| else |
| genl "#{async_retval}.wait();" |
| end |
| end |
| }} |
| defn_ctor_opeq() |
| }} |
| end |
| end |
| |
| class SessionGen < CppGen |
| include SyncAsync |
| |
| def initialize(outdir, amqp, async) |
| super(outdir, amqp) |
| @async=async |
| @chassis="server" |
| session="#{sync_prefix}Session_#{@amqp.version.bars}" |
| @base="no_keyword::#{session}" |
| @fqclass=FqClass.new "qpid::client::#{session}" |
| @classname=@fqclass.name |
| @fqbase=FqClass.new("qpid::client::#{@base}") |
| @version_base="SessionBase_#{@amqp.major}_#{@amqp.minor}" |
| end |
| |
| def gen_keyword_decl(m) |
| return if m.fields_c.empty? # Inherited function will do. |
| scope("BOOST_PARAMETER_MEMFUN(#{m.return_type(@async)}, #{m.session_function}, 0, #{m.fields_c.size}, #{m.argpack_name}) {") { |
| scope("return #{@base}::#{m.session_function}(",");") { |
| gen m.fields_c.map { |f| f.unpack() }.join(",\n") |
| } |
| } |
| genl |
| end |
| |
| def generate() |
| keyword_methods=session_methods.reject { |m| m.fields_c.empty? } |
| max_arity = keyword_methods.map{ |m| m.fields_c.size }.max |
| |
| h_file("qpid/client/arg.h") { |
| # Generate keyword tag declarations. |
| genl "#define BOOST_PARAMETER_MAX_ARITY #{max_arity}" |
| include "<boost/parameter.hpp>" |
| namespace("qpid::client::arg") { |
| keyword_methods.map{ |m| m.param_names_c }.flatten.uniq.each { |k| |
| genl "BOOST_PARAMETER_KEYWORD(keyword_tags, #{k})" |
| }} |
| } |
| |
| h_file(@fqclass.file) { |
| include @fqbase.file |
| include "qpid/client/arg" |
| namespace("qpid::client") { |
| # Doxygen comment. |
| doxygen_comment { |
| genl "AMQP #{@amqp.version} session API with keyword arguments." |
| genl <<EOS |
| This class provides the same set of functions as #{@base}, but also |
| allows parameters be passed using keywords. The keyword is the |
| parameter name in the namespace "arg". |
| |
| For example given the normal function "foo(int x=0, int y=0, int z=0)" |
| you could call it in either of the following ways: |
| |
| @code |
| session.foo(1,2,3); // Normal no keywords |
| session.foo(arg::z=3, arg::x=1); // Keywords and a default |
| @endcode |
| |
| The keyword functions are easy to use but their declarations are hard |
| to read. You may find it easier to read the documentation for #{@base} |
| which provides the same set of functions using normal non-keyword |
| declarations. |
| |
| \\ingroup clientapi |
| EOS |
| } |
| # Session class. |
| cpp_class(@classname,"public #{@base}") { |
| public |
| decl_ctor_opeq() |
| private |
| keyword_methods.each { |m| typedef m.argpack_type, m.argpack_name } |
| genl "friend class Connection;" |
| public |
| keyword_methods.each { |m| gen_keyword_decl(m) } |
| } |
| genl "/** Conversion to #{@classname} from another session type */" |
| genl "inline #{@classname} #{sync_convert}(const #{@version_base}& other) { return #{@clasname}(other); }" |
| defn_ctor_opeq("inline") |
| }} |
| end |
| end |
| |
| SessionNoKeywordGen.new(ARGV[0], $amqp, true).generate() |
| SessionNoKeywordGen.new(ARGV[0], $amqp, false).generate() |
| SessionGen.new(ARGV[0], $amqp, true).generate() |
| SessionGen.new(ARGV[0], $amqp, false).generate() |
| |
