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-rw-r--r--erts/emulator/beam/erl_drv_nif.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_drv_nif.h b/erts/emulator/beam/erl_drv_nif.h
index 2489099b5c..e4ebcdb1d4 100644
--- a/erts/emulator/beam/erl_drv_nif.h
+++ b/erts/emulator/beam/erl_drv_nif.h
@@ -49,6 +49,13 @@ typedef enum {
ERL_DIRTY_JOB_IO_BOUND = 2
} ErlDirtyJobFlags;
+/* Values for enif_select AND mode arg for driver_select() */
+enum ErlNifSelectFlags {
+ ERL_NIF_SELECT_READ = (1 << 0),
+ ERL_NIF_SELECT_WRITE = (1 << 1),
+ ERL_NIF_SELECT_STOP = (1 << 2)
+};
+
#ifdef SIZEOF_CHAR
# define SIZEOF_CHAR_SAVED__ SIZEOF_CHAR
# undef SIZEOF_CHAR