[ViewVC] Diff of: cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.490 by root, Thu Jun 20 22:44:59 2019 UTC vs.
Revision 1.492 by root, Sat Jun 22 16:25:53 2019 UTC

 # else
 #  undef EV_USE_EPOLL
 #  define EV_USE_EPOLL 0
 # endif
+# if HAVE_LINUX_AIO_ABI_H
+#  ifndef EV_USE_LINUXAIO
+#   define EV_USE_LINUXAIO EV_FEATURE_BACKENDS
+#  endif
+# else
+#  undef EV_USE_LINUXAIO
+#  define EV_USE_LINUXAIO 0
+# endif
 # if HAVE_KQUEUE && HAVE_SYS_EVENT_H
 #  ifndef EV_USE_KQUEUE
 #   define EV_USE_KQUEUE EV_FEATURE_BACKENDS
 #  endif
 # else
 #ifndef EV_USE_PORT
 # define EV_USE_PORT 0
 #endif
 #ifndef EV_USE_LINUXAIO
+# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
+#  define EV_USE_LINUXAIO 1
+# else
-# define EV_USE_LINUXAIO 0
+#  define EV_USE_LINUXAIO 0
+# endif
 #endif
 #ifndef EV_USE_INOTIFY
 # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
 #  define EV_USE_INOTIFY EV_FEATURE_OS
 #if !EV_USE_NANOSLEEP
 /* hp-ux has it in sys/time.h, which we unconditionally include above */
 # if !defined _WIN32 && !defined __hpux
 #  include <sys/select.h>
+# endif
+#endif
+#if EV_USE_LINUXAIO
+# include <sys/syscall.h>
+# if !SYS_io_getevents
+#  undef EV_USE_LINUXAIO
+#  define EV_USE_LINUXAIO 0
 # endif
 #endif
 #if EV_USE_INOTIFY
 # include <sys/statfs.h>
 #endif
 #ifdef __FreeBSD__
   flags &= ~EVBACKEND_POLL;   /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
 #endif
+  /* TODO: linuxaio is very experimental */
+  flags &= ~EVBACKEND_LINUXAIO;
   return flags;
 }
 ecb_cold
 unsigned int

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