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|
$out ||= $stdout
$dl_h = ARGV[0] || "dl.h"
# import DLSTACK_SIZE, DLSTACK_ARGS and so on
File.open($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)
VALUE rb_DLCdeclCallbackAddrs, rb_DLCdeclCallbackProcs;
VALUE rb_DLStdcallCallbackAddrs, rb_DLStdcallCallbackProcs;
/*static void *cdecl_callbacks[MAX_DLTYPE][MAX_CALLBACK];*/
/*static void *stdcall_callbacks[MAX_DLTYPE][MAX_CALLBACK];*/
static ID cb_call;
EOS
for calltype in CALLTYPES
case calltype
when CDECL
proc_entry = "rb_DLCdeclCallbackProcs"
when STDCALL
proc_entry = "rb_DLStdcallCallbackProcs"
else
raise "unknown calltype: #{calltype}"
end
for ty in 0..(MAX_DLTYPE-1)
for argc in 0..(DLSTACK_SIZE-1)
for n in 0..(MAX_CALLBACK-1)
$out << (<<-EOS)
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, cb_call, #{argc}, #{argc > 0 ? 'args' : 'NULL'});
return #{DLTYPE[ty][:conv] ? DLTYPE[ty][:conv] % "ret" : ""};
}
EOS
end
end
end
end
$out << (<<EOS)
static void
rb_dl_init_callbacks()
{
cb_call = rb_intern("call");
rb_DLCdeclCallbackProcs = rb_ary_new();
rb_DLCdeclCallbackAddrs = rb_ary_new();
rb_DLStdcallCallbackProcs = rb_ary_new();
rb_DLStdcallCallbackAddrs = rb_ary_new();
rb_define_const(rb_mDL, "CdeclCallbackProcs", rb_DLCdeclCallbackProcs);
rb_define_const(rb_mDL, "CdeclCallbackAddrs", rb_DLCdeclCallbackAddrs);
rb_define_const(rb_mDL, "StdcallCallbackProcs", rb_DLStdcallCallbackProcs);
rb_define_const(rb_mDL, "StdcallCallbackAddrs", rb_DLStdcallCallbackAddrs);
#{
(0...MAX_DLTYPE).collect{|ty|
sprintf(" rb_ary_push(rb_DLCdeclCallbackProcs, rb_ary_new3(%d,%s));",
MAX_CALLBACK * DLSTACK_SIZE,
(0...MAX_CALLBACK).collect{
(0...DLSTACK_SIZE).collect{ "Qnil" }.join(",")
}.join(","))
}.join("\n")
}
#{
(0...MAX_DLTYPE).collect{|ty|
sprintf(" rb_ary_push(rb_DLCdeclCallbackAddrs, 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,CDECL)
}.join(",")
}.join(","))
}.join("\n")
}
#{
(0...MAX_DLTYPE).collect{|ty|
sprintf(" rb_ary_push(rb_DLStdcallCallbackProcs, rb_ary_new3(%d,%s));",
MAX_CALLBACK * DLSTACK_SIZE,
(0...MAX_CALLBACK).collect{
(0...DLSTACK_SIZE).collect{ "Qnil" }.join(",")
}.join(","))
}.join("\n")
}
#{
(0...MAX_DLTYPE).collect{|ty|
sprintf(" rb_ary_push(rb_DLStdcallCallbackAddrs, 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,STDCALL)
}.join(",")
}.join(","))
}.join("\n")
}
}
EOS
|
