Trouble with ruby_options() on win32 and ruby 1.8.2

ruby-talk
1

David Craine wrote:

Lähettäjä: David Craine <dave@infoether.com>
Aihe: trouble with ruby_options() on win32 and ruby 1.8.2

I'm trying to embed ruby into a win32 application; however, when
calling the ruby_options() method my process simply hangs. I am trying
to use ruby_options() to pass the -C argument to ruby to set the
current directory. My code looks like this:

UINT launchRuby()
{
char *argv[3] =
{
"ruby",
"-C..\\Release",
"test.rb"
}

ruby_init();
ruby_options(3, argv);
ruby_run();
}

My program compiles and links properly; however, when I run it it just
hangs right after the ruby_options() call (I've integrated some
diagnostic code to determine this). This same technique worked fine on
OSX, so I'm wondering if there is some issue with the Windows platform.

See http://www.ruby-doc.org/doxygen/1.8.1/eval_8c-source.html#l01345
and http://www.ruby-doc.org/doxygen/1.8.1/ruby_8c-source.html#l01104
and http://www.ruby-doc.org/doxygen/1.8.1/ruby_8c-source.html#l00425

It looks like the first argument may have to be the script name.

E

Actually, the source code indicates that the first argument should be
the ruby program name, i.e., "ruby". This is how it worked on OSX and
should be the same on win32. thanks for the idea, though.

Hm, strange. I did just quickly read it, maybe it's simply confusingly
expressed. You may well be right, it's just superfluous in that case :slight_smile:

01103 void
01104 ruby_process_options(argc, argv)
01105 int argc;
01106 char **argv;
01107 {
01108 origargc = argc; origargv = argv;
01109
01110 ruby_script(argv[0]); // <== This here
01111 rb_argv0 = rb_progname;
01112 #if defined(USE_DLN_A_OUT)
01113 dln_argv0 = argv[0];
01114 #endif
01115 proc_options(argc, argv);
01116
01117 if (do_check && ruby_nerrs == 0) {
01118 printf("Syntax OK\n");
01119 exit(0);
01120 }
01121 if (do_print) {
01122 rb_parser_append_print();
01123 }
01124 if (do_loop) {
01125 rb_parser_while_loop(do_line, do_split);
01126 }
01127 }
01128

...

01002 void
01003 ruby_script(name)
01004 char *name;
01005 {
01006 if (name) {
01007 rb_progname = rb_tainted_str_new2(name);
01008 ruby_sourcefile = rb_source_filename(name);
01009 }
01010 }

···

On Jan 18, 2005, at 5:18 PM, E S wrote: