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-rw-r--r--erts/emulator/beam/erl_driver.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/erts/emulator/beam/erl_driver.h b/erts/emulator/beam/erl_driver.h
index f43f5a766e..d2a11cce05 100644
--- a/erts/emulator/beam/erl_driver.h
+++ b/erts/emulator/beam/erl_driver.h
@@ -133,7 +133,7 @@ typedef struct {
#define ERL_DRV_EXTENDED_MARKER (0xfeeeeeed)
#define ERL_DRV_EXTENDED_MAJOR_VERSION 2
-#define ERL_DRV_EXTENDED_MINOR_VERSION 1
+#define ERL_DRV_EXTENDED_MINOR_VERSION 2
/*
* The emulator will refuse to load a driver with different major
@@ -644,6 +644,8 @@ EXTERN int erl_drv_send_term(ErlDrvTermData port,
int len);
/* Async IO functions */
+EXTERN unsigned int driver_async_port_key(ErlDrvPort port);
+
EXTERN long driver_async(ErlDrvPort ix,
unsigned int* key,
void (*async_invoke)(void*),