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Some global variables can be accessed from ractors

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Some global variables should be used from non-main Ractors.
[Bug #17268]

```ruby
     # ractor-local (derived from created ractor): debug
     '$DEBUG' => $DEBUG,
     '$-d' => $-d,

     # ractor-local (derived from created ractor): verbose
     '$VERBOSE' => $VERBOSE,
     '$-w' => $-w,
     '$-W' => $-W,
     '$-v' => $-v,

     # process-local (readonly): other commandline parameters
     '$-p' => $-p,
     '$-l' => $-l,
     '$-a' => $-a,

     # process-local (readonly): getpid
     '$$'  => $$,

     # thread local: process result
     '$?'  => $?,

     # scope local: match
     '$~'  => $~.inspect,
     '$&'  => $&,
     '$`'  => $`,
     '$\''  => $',
     '$+'  => $+,
     '$1'  => $1,

     # scope local: last line
     '$_' => $_,

     # scope local: last backtrace
     '$@' => $@,
     '$!' => $!,

     # ractor local: stdin, out, err
     '$stdin'  => $stdin.inspect,
     '$stdout' => $stdout.inspect,
     '$stderr' => $stderr.inspect,
```
This commit is contained in:
Koichi Sasada 2020-10-20 10:46:43 +09:00
parent 9ced5fae6d
commit 99310e3eb5
Notes: git 2020-10-20 15:39:18 +09:00
11 changed files with 131 additions and 24 deletions
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4
ractor.c
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@ -1373,6 +1373,10 @@ ractor_create(rb_execution_context_t *ec, VALUE self, VALUE loc, VALUE name, VAL
r->r_stdout = rb_io_prep_stdout();
r->r_stderr = rb_io_prep_stderr();
rb_ractor_t *cr = rb_ec_ractor_ptr(ec);
r->verbose = cr->verbose;
r->debug = cr->debug;
rb_thread_create_ractor(r, args, block);
RB_GC_GUARD(rv);