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| | /* common splice and copy_file_range-related definitions */
#ifndef SSIZET2NUM
# define SSIZET2NUM(x) LONG2NUM(x)
#endif
#ifndef NUM2SIZET
# define NUM2SIZET(x) NUM2ULONG(x)
#endif
#if defined(HAVE_RB_THREAD_CALL_WITHOUT_GVL) && defined(HAVE_RUBY_THREAD_H)
/* Ruby 2.0+ */
# include <ruby/thread.h>
# define WITHOUT_GVL(fn,a,ubf,b) \
rb_thread_call_without_gvl((fn),(a),(ubf),(b))
#elif defined(HAVE_RB_THREAD_BLOCKING_REGION)
typedef VALUE (*my_blocking_fn_t)(void*);
# define WITHOUT_GVL(fn,a,ubf,b) \
rb_thread_blocking_region((my_blocking_fn_t)(fn),(a),(ubf),(b))
#else /* Ruby 1.8 */
# error Ruby 1.8 not supported
#endif /* ! HAVE_RB_THREAD_BLOCKING_REGION */
#define IO_RUN(fn,data) WITHOUT_GVL((fn),(data),RUBY_UBF_IO,0)
struct copy_args {
int fd_in;
int fd_out;
off_t *off_in;
off_t *off_out;
size_t len;
unsigned flags;
};
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