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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2009-03-03 06:40:40 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2009-03-03 06:40:40 +0000
commit1001173ccd68f728d28cf7fb8752326bc3ddf3eb (patch)
tree49bf7963d93ebb19a412d74edc7d78d119a8c62f /ext/dl/callback
parent2233d34b39c491d3930ad3a5e970200b6d43c32d (diff)
* ext/dl/dl.c (rb_dl_init_callbacks): autoloads callbacks.
* ext/dl/callback: split from dl. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22722 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/dl/callback')
-rw-r--r--ext/dl/callback/depend18
-rw-r--r--ext/dl/callback/extconf.rb15
-rw-r--r--ext/dl/callback/mkcallback.rb231
3 files changed, 264 insertions, 0 deletions
diff --git a/ext/dl/callback/depend b/ext/dl/callback/depend
new file mode 100644
index 0000000000..aeca53f0cc
--- /dev/null
+++ b/ext/dl/callback/depend
@@ -0,0 +1,18 @@
+callback.o: $(hdrdir)/ruby.h $(hdrdir)/io.h
+
+callback-0.o: callback-0.c $(hdrdir)/ruby.h
+callback-1.o: callback-1.c $(hdrdir)/ruby.h
+callback-2.o: callback-2.c $(hdrdir)/ruby.h
+callback-3.o: callback-3.c $(hdrdir)/ruby.h
+callback-4.o: callback-4.c $(hdrdir)/ruby.h
+callback-5.o: callback-5.c $(hdrdir)/ruby.h
+callback-6.o: callback-6.c $(hdrdir)/ruby.h
+callback-7.o: callback-7.c $(hdrdir)/ruby.h
+callback-8.o: callback-8.c $(hdrdir)/ruby.h
+
+callback-0.c callback-1.c callback-2.c \
+callback-3.c callback-4.c callback-5.c \
+callback-6.c callback-7.c callback-8.c \
+callback.c: $(srcdir)/mkcallback.rb $(srcdir)/../dl.h
+ @echo "generating callback.h"
+ @$(RUBY) $(srcdir)/mkcallback.rb $(srcdir)/../dl.h
diff --git a/ext/dl/callback/extconf.rb b/ext/dl/callback/extconf.rb
new file mode 100644
index 0000000000..46aba28397
--- /dev/null
+++ b/ext/dl/callback/extconf.rb
@@ -0,0 +1,15 @@
+require 'mkmf'
+
+if compiled?("dl")
+ CALLBACKS = (0..8).map{|i| "callback-#{i}"}
+ CALLBACK_SRCS = CALLBACKS.map{|basename| "#{basename}.c"}
+ CALLBACK_OBJS = CALLBACKS.map{|basename| "#{basename}.o"}
+
+ $distcleanfiles += [ "callback.h", *CALLBACK_SRCS ]
+
+ $objs = %w[ callback.o ] + CALLBACK_OBJS
+
+ $INCFLAGS << " -I$(srcdir)/.."
+
+ create_makefile("dl/callback")
+end
diff --git a/ext/dl/callback/mkcallback.rb b/ext/dl/callback/mkcallback.rb
new file mode 100644
index 0000000000..a210a686e1
--- /dev/null
+++ b/ext/dl/callback/mkcallback.rb
@@ -0,0 +1,231 @@
+$out = open("callback.c", "w")
+
+$dl_h = ARGV[0] || "dl.h"
+
+# import DLSTACK_SIZE, DLSTACK_ARGS and so on
+File.open($dl_h){|f|
+ pre = ""
+ f.each{|line|
+ line.chop!
+ if( line[-1] == ?\\ )
+ line.chop!
+ line.concat(" ")
+ pre += line
+ next
+ end
+ if( pre.size > 0 )
+ line = pre + line
+ pre = ""
+ end
+ case line
+ when /#define\s+DLSTACK_SIZE\s+\(?(\d+)\)?/
+ DLSTACK_SIZE = $1.to_i
+ when /#define\s+DLSTACK_ARGS\s+(.+)/
+ DLSTACK_ARGS = $1.to_i
+ when /#define\s+DLTYPE_([A-Z_]+)\s+\(?(\d+)\)?/
+ eval("#{$1} = #{$2}")
+ when /#define\s+MAX_DLTYPE\s+\(?(\d+)\)?/
+ MAX_DLTYPE = $1.to_i
+ when /#define\s+MAX_CALLBACK\s+\(?(\d+)\)?/
+ MAX_CALLBACK = $1.to_i
+ end
+ }
+}
+
+CDECL = "cdecl"
+STDCALL = "stdcall"
+
+CALLTYPES = [CDECL, STDCALL]
+
+DLTYPE = {
+ VOID => {
+ :name => 'void',
+ :type => 'void',
+ :conv => nil,
+ },
+ CHAR => {
+ :name => 'char',
+ :type => 'char',
+ :conv => 'NUM2CHR(%s)'
+ },
+ SHORT => {
+ :name => 'short',
+ :type => 'short',
+ :conv => 'NUM2INT(%s)',
+ },
+ INT => {
+ :name => 'int',
+ :type => 'int',
+ :conv => 'NUM2INT(%s)',
+ },
+ LONG => {
+ :name => 'long',
+ :type => 'long',
+ :conv => 'NUM2LONG(%s)',
+ },
+ LONG_LONG => {
+ :name => 'long_long',
+ :type => 'LONG_LONG',
+ :conv => 'NUM2LL(%s)',
+ },
+ FLOAT => {
+ :name => 'float',
+ :type => 'float',
+ :conv => 'RFLOAT_VALUE(%s)',
+ },
+ DOUBLE => {
+ :name => 'double',
+ :type => 'double',
+ :conv => 'RFLOAT_VALUE(%s)',
+ },
+ VOIDP => {
+ :name => 'ptr',
+ :type => 'void *',
+ :conv => 'NUM2PTR(%s)',
+ },
+}
+
+
+def func_name(ty, argc, n, calltype)
+ "rb_dl_callback_#{DLTYPE[ty][:name]}_#{argc}_#{n}_#{calltype}"
+end
+
+$out << (<<EOS)
+#include "ruby.h"
+
+VALUE rb_DLCdeclCallbackAddrs, rb_DLCdeclCallbackProcs;
+#ifdef FUNC_STDCALL
+VALUE rb_DLStdcallCallbackAddrs, rb_DLStdcallCallbackProcs;
+#endif
+/*static void *cdecl_callbacks[MAX_DLTYPE][MAX_CALLBACK];*/
+#ifdef FUNC_STDCALL
+/*static void *stdcall_callbacks[MAX_DLTYPE][MAX_CALLBACK];*/
+#endif
+ID rb_dl_cb_call;
+EOS
+
+def foreach_proc_entry
+ for calltype in CALLTYPES
+ case calltype
+ when CDECL
+ proc_entry = "rb_DLCdeclCallbackProcs"
+ when STDCALL
+ proc_entry = "rb_DLStdcallCallbackProcs"
+ else
+ raise "unknown calltype: #{calltype}"
+ end
+ yield calltype, proc_entry
+ end
+end
+
+def gencallback(ty, calltype, proc_entry, argc, n)
+ <<-EOS
+#{calltype == STDCALL ? "\n#ifdef FUNC_STDCALL" : ""}
+static #{DLTYPE[ty][:type]}
+FUNC_#{calltype.upcase}(#{func_name(ty,argc,n,calltype)})(#{(0...argc).collect{|i| "DLSTACK_TYPE stack" + i.to_s}.join(", ")})
+{
+ VALUE ret, cb#{argc > 0 ? ", args[#{argc}]" : ""};
+#{
+ (0...argc).collect{|i|
+ " args[%d] = LONG2NUM(stack%d);" % [i,i]
+ }.join("\n")
+}
+ cb = rb_ary_entry(rb_ary_entry(#{proc_entry}, #{ty}), #{(n * DLSTACK_SIZE) + argc});
+ ret = rb_funcall2(cb, rb_dl_cb_call, #{argc}, #{argc > 0 ? 'args' : 'NULL'});
+ return #{DLTYPE[ty][:conv] ? DLTYPE[ty][:conv] % "ret" : ""};
+}
+#{calltype == STDCALL ? "#endif\n" : ""}
+ EOS
+end
+
+def gen_push_proc_ary(ty, aryname)
+ sprintf(" rb_ary_push(#{aryname}, rb_ary_new3(%d,%s));",
+ MAX_CALLBACK * DLSTACK_SIZE,
+ (0...MAX_CALLBACK).collect{
+ (0...DLSTACK_SIZE).collect{ "Qnil" }.join(",")
+ }.join(","))
+end
+
+def gen_push_addr_ary(ty, aryname, calltype)
+ sprintf(" rb_ary_push(#{aryname}, rb_ary_new3(%d,%s));",
+ MAX_CALLBACK * DLSTACK_SIZE,
+ (0...MAX_CALLBACK).collect{|i|
+ (0...DLSTACK_SIZE).collect{|argc|
+ "PTR2NUM(%s)" % func_name(ty,argc,i,calltype)
+ }.join(",")
+ }.join(","))
+end
+
+def gen_callback_file(ty)
+ filename = "callback-#{ty}.c"
+ initname = "rb_dl_init_callbacks_#{ty}"
+ open(filename, "w") {|f|
+ f.puts <<-EOS
+#include "dl.h"
+
+extern VALUE rb_DLCdeclCallbackAddrs, rb_DLCdeclCallbackProcs;
+#ifdef FUNC_STDCALL
+extern VALUE rb_DLStdcallCallbackAddrs, rb_DLStdcallCallbackProcs;
+#endif
+extern ID rb_dl_cb_call;
+ EOS
+ yield f
+ f.puts <<-EOS
+void
+#{initname}()
+{
+#{gen_push_proc_ary(ty, "rb_DLCdeclCallbackProcs")}
+#{gen_push_addr_ary(ty, "rb_DLCdeclCallbackAddrs", CDECL)}
+#ifdef FUNC_STDCALL
+#{gen_push_proc_ary(ty, "rb_DLStdcallCallbackProcs")}
+#{gen_push_addr_ary(ty, "rb_DLStdcallCallbackAddrs", STDCALL)}
+#endif
+}
+ EOS
+ }
+ initname
+end
+
+for ty in 0...MAX_DLTYPE
+ initname = gen_callback_file(ty) {|f|
+ foreach_proc_entry do |calltype, proc_entry|
+ for argc in 0...DLSTACK_SIZE
+ for n in 0...MAX_CALLBACK
+ f << gencallback(ty, calltype, proc_entry, argc, n)
+ end
+ end
+ end
+ }
+ $out << "void #{initname}();\n"
+end
+
+$out << (<<EOS)
+void
+Init_callback(void)
+{
+ VALUE tmp;
+ VALUE rb_mDL = rb_path2class("DL");
+
+ rb_dl_cb_call = rb_intern("call");
+
+ tmp = rb_DLCdeclCallbackProcs = rb_ary_new();
+ rb_define_const(rb_mDL, "CdeclCallbackProcs", tmp);
+
+ tmp = rb_DLCdeclCallbackAddrs = rb_ary_new();
+ rb_define_const(rb_mDL, "CdeclCallbackAddrs", tmp);
+
+#ifdef FUNC_STDCALL
+ tmp = rb_DLStdcallCallbackProcs = rb_ary_new();
+ rb_define_const(rb_mDL, "StdcallCallbackProcs", tmp);
+
+ tmp = rb_DLStdcallCallbackAddrs = rb_ary_new();
+ rb_define_const(rb_mDL, "StdcallCallbackAddrs", tmp);
+#endif
+
+#{
+ (0...MAX_DLTYPE).collect{|ty|
+ " rb_dl_init_callbacks_#{ty}();"
+ }.join("\n")
+}
+}
+EOS