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Provide a file-like object to send data to attached process #77

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merged 1 commit into from
Mar 11, 2020
Merged

Provide a file-like object to send data to attached process #77

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Provide a file-like object to send data to attached process
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@danielwaterworth
danielwaterworth committed Mar 10, 2020
commit e0bcba4f1a675307db7de9b849a0052455b82a58
17 changes: 17 additions & 0 deletions ext/rbtrace.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1102,9 +1102,26 @@ signal_handler_wrapper(VALUE arg, VALUE ctx)
}
#endif

static VALUE
send_write(VALUE klass, VALUE val) {
if (TYPE(val) == T_STRING) {
rbtrace__send_event(1,
"write",
's', RSTRING_PTR(val)
);
}

return Qnil;
}

void
Init_rbtrace()
{
VALUE mod = rb_define_module("RBTrace");
VALUE output = rb_define_module_under(mod, "OUT");

rb_define_singleton_method(output, "write", send_write, 1);

// hook into the gc
gc_hook = Data_Wrap_Struct(rb_cObject, rbtrace_gc_mark, NULL, NULL);
rb_global_variable(&gc_hook);
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4 changes: 4 additions & 0 deletions lib/rbtrace/rbtracer.rb
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Expand Up @@ -575,6 +575,10 @@ def process_line(line)
puts if @watch_slow
end

when 'write'
data, = *cmd
STDOUT.write(data)

else
puts "unknown event #{event}: #{cmd.inspect}"

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