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| | #ifndef NOGVL_COMPAT_H
#define NOGVL_COMPAT_H
/*
* Compatibility layer for various GVL-releasing wrappers.
*
* This layer will be updated to favor compatibility with the latest
* Matz Ruby C API, currently Ruby 2.0.0 (as of 2013-04-05).
*
* rb_thread_call_without_gvl was detectable via have_func in 1.9.3,
* but not usable. So we must check for ruby/thread.h and use
* rb_thread_blocking_region if ruby/thread.h is not available
*
* HAVE_RUBY_THREAD_H is defined by ruby.h in 2.0.0, NOT using
* extconf.rb since that may find ruby/thread.h in a different
* installation
*/
#if defined(HAVE_RB_THREAD_CALL_WITHOUT_GVL) && \
defined(HAVE_RUBY_THREAD_H) && HAVE_RUBY_THREAD_H /* Ruby 2.0.0 */
# include <ruby/thread.h>
# define NOGVL(fn,data1,ubf,data2) \
rb_thread_call_without_gvl((fn),(data1),(ubf),(data2))
#elif defined(HAVE_RB_THREAD_BLOCKING_REGION) /* Ruby 1.9.x */
# define COMPAT_FN (VALUE (*)(void *))
# define NOGVL(fn,data1,ubf,data2) \
(void *)rb_thread_blocking_region(COMPAT_FN(fn),(data1),(ubf),(data2))
#else /* Ruby 1.8 */
/*
* Ruby 1.8 does not have a GVL, we'll just enable signal interrupts
* here in case we make interruptible syscalls
*/
# define RUBY_UBF_IO ((rb_unblock_function_t *)-1)
# include "rubysig.h"
typedef void rb_unblock_function_t(void *);
typedef void *rb_blocking_function_t(void *);
static void *
fake_nogvl(fn, data1, ubf, data2)
rb_blocking_function_t fn;
void *data1;
rb_unblock_function_t ubf;
void *data2;
{
void *rv;
TRAP_BEG;
rv = fn(data1);
TRAP_END;
return rv;
}
# define NOGVL(fn,data1,ubf,data2) fake_nogvl((fn),(data1),(ubf),(data2))
#endif
#endif /* NOGVL_COMPAT_H */
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