Merge branch 'rickard/atomic-type/OTP-8974' into dev

* rickard/atomic-type/OTP-8974:
  Use 32-bit atomics for system block
  Use 32-bit atomics for misc scheduling specific information
  Use 32-bit atomic for uaflgs in thread specific events
  Use 32-bit atomics for process lock flags
  Add 32-bit atomics to emulator APIs
  Use new atomic types in emulator
  Use 32-bit atomics for ethr_thr_create
  Use 32-bit atomics for mutex and rwmutex flags
  Use 32-bit atomics for events
  Add support for 32-bit atomics
  Move atomic API into own files
  Add support for 64-bit atomics on Windows
  Remove unused ethread time functionality
  Introduce ethr_sint_t and use it for atomics

1 files changed, 27 insertions, 26 deletions

diff --git a/erts/emulator/beam/erl_driver.h b/erts/emulator/beam/erl_driver.h
index 9733c0e5b5..13a73e01bb 100644
--- a/erts/emulator/beam/erl_driver.h
+++ b/erts/emulator/beam/erl_driver.h
@@ -150,6 +150,27 @@ typedef struct {
 #define ERL_DRV_FLAG_SOFT_BUSY		(1 << 1)
 
 /*
+ * Integer types
+ */
+
+typedef unsigned long ErlDrvTermData;
+typedef unsigned long ErlDrvUInt;
+typedef signed long ErlDrvSInt;
+
+#if defined(__WIN32__)
+typedef unsigned __int64 ErlDrvUInt64;
+typedef __int64 ErlDrvSInt64;
+#elif SIZEOF_LONG == 8
+typedef unsigned long ErlDrvUInt64;
+typedef long ErlDrvSInt64;
+#elif SIZEOF_LONG_LONG == 8
+typedef unsigned long long ErlDrvUInt64;
+typedef long long ErlDrvSInt64;
+#else
+#error No 64-bit integer type
+#endif
+
+/*
  * A binary as seen in a driver. Note that a binary should never be
  * altered by the driver when it has been sent to Erlang.
  */
@@ -179,26 +200,6 @@ struct erl_drv_event_data {
 #endif
 typedef struct erl_drv_event_data *ErlDrvEventData; /* Event data */
 
-/* 
- * Used in monitors...
- */
-typedef unsigned long ErlDrvTermData;
-typedef unsigned long ErlDrvUInt;
-typedef signed long ErlDrvSInt;
-
-#if defined(__WIN32__)
-typedef unsigned __int64 ErlDrvUInt64;
-typedef __int64 ErlDrvSInt64;
-#elif SIZEOF_LONG == 8
-typedef unsigned long ErlDrvUInt64;
-typedef long ErlDrvSInt64;
-#elif SIZEOF_LONG_LONG == 8
-typedef unsigned long long ErlDrvUInt64;
-typedef long long ErlDrvSInt64;
-#else
-#error No 64-bit integer type
-#endif
-
 /*
  * A driver monitor
  */
@@ -394,9 +395,9 @@ EXTERN int driver_exit (ErlDrvPort port, int err);
 EXTERN ErlDrvPDL driver_pdl_create(ErlDrvPort);
 EXTERN void driver_pdl_lock(ErlDrvPDL);
 EXTERN void driver_pdl_unlock(ErlDrvPDL);
-EXTERN long driver_pdl_get_refc(ErlDrvPDL);
-EXTERN long driver_pdl_inc_refc(ErlDrvPDL);
-EXTERN long driver_pdl_dec_refc(ErlDrvPDL);
+EXTERN ErlDrvSInt driver_pdl_get_refc(ErlDrvPDL);
+EXTERN ErlDrvSInt driver_pdl_inc_refc(ErlDrvPDL);
+EXTERN ErlDrvSInt driver_pdl_dec_refc(ErlDrvPDL);
 
 /*
  * Process monitors
@@ -432,9 +433,9 @@ EXTERN ErlDrvBinary* driver_realloc_binary(ErlDrvBinary *bin, int size);
 EXTERN void driver_free_binary(ErlDrvBinary *bin);
 
 /* Referenc count on driver binaries */
-EXTERN long driver_binary_get_refc(ErlDrvBinary *dbp);
-EXTERN long driver_binary_inc_refc(ErlDrvBinary *dbp);
-EXTERN long driver_binary_dec_refc(ErlDrvBinary *dbp);
+EXTERN ErlDrvSInt driver_binary_get_refc(ErlDrvBinary *dbp);
+EXTERN ErlDrvSInt driver_binary_inc_refc(ErlDrvBinary *dbp);
+EXTERN ErlDrvSInt driver_binary_dec_refc(ErlDrvBinary *dbp);
 
 /* Allocation interface */
 EXTERN void *driver_alloc(size_t size);