Merge branch 'rickard/port-optimizations/OTP-10336' into rickard/r16/port-optimizations/OTP-10336

* rickard/port-optimizations/OTP-10336:
  Change annotate level for emacs-22 in cerl
  Update etp-commands
  Add documentation on communication in Erlang
  Add support for busy port message queue
  Add driver callback epilogue
  Implement true asynchronous signaling between processes and ports
  Add erl_drv_[send|output]_term
  Move busy port flag
  Use rwlock for driver list
  Optimize management of port tasks
  Improve configuration of process and port tables
  Remove R9 compatibility features
  Use ptab functionality also for ports
  Prepare for use of ptab functionality also for ports
  Atomic port state
  Generalize process table implementation
  Implement functionality for delaying thread progress from unmanaged threads

Conflicts:
	erts/doc/src/erl_driver.xml
	erts/doc/src/erlang.xml
	erts/emulator/beam/beam_bif_load.c
	erts/emulator/beam/beam_bp.c
	erts/emulator/beam/beam_emu.c
	erts/emulator/beam/bif.c
	erts/emulator/beam/copy.c
	erts/emulator/beam/erl_alloc.c
	erts/emulator/beam/erl_alloc.types
	erts/emulator/beam/erl_bif_info.c
	erts/emulator/beam/erl_bif_port.c
	erts/emulator/beam/erl_bif_trace.c
	erts/emulator/beam/erl_init.c
	erts/emulator/beam/erl_message.c
	erts/emulator/beam/erl_port_task.c
	erts/emulator/beam/erl_process.c
	erts/emulator/beam/erl_process.h
	erts/emulator/beam/erl_process_lock.c
	erts/emulator/beam/erl_trace.c
	erts/emulator/beam/export.h
	erts/emulator/beam/global.h
	erts/emulator/beam/io.c
	erts/emulator/sys/unix/sys.c
	erts/emulator/sys/vxworks/sys.c
	erts/emulator/test/port_SUITE.erl
	erts/etc/unix/cerl.src
	erts/preloaded/ebin/erlang.beam
	erts/preloaded/ebin/prim_inet.beam
	erts/preloaded/src/prim_inet.erl
	lib/hipe/cerl/erl_bif_types.erl
	lib/kernel/doc/src/inet.xml
	lib/kernel/src/inet.erl

1 files changed, 40 insertions, 0 deletions

diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index f5f10bb616..898a30b010 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -116,6 +116,16 @@ typedef ERTS_SYS_FD_TYPE ErtsSysFdType;
 #  define ERTS_DECLARE_DUMMY(X) X
 #endif
 
+#if !defined(__func__)
+#  if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L
+#    if !defined(__GNUC__) ||  __GNUC__ < 2
+#      define __func__ "[unknown_function]"
+#    else
+#      define __func__ __FUNCTION__
+#    endif
+#  endif
+#endif
+
 #if defined(DEBUG) || defined(ERTS_ENABLE_LOCK_CHECK)
 #  undef ERTS_CAN_INLINE
 #  define ERTS_CAN_INLINE 0
@@ -231,9 +241,11 @@ void erl_assert_error(char* expr, char* file, int line);
 #if SIZEOF_VOID_P == 8
 #undef  ARCH_32
 #define ARCH_64
+#define ERTS_SIZEOF_TERM 8
 #elif SIZEOF_VOID_P == 4
 #define ARCH_32
 #undef  ARCH_64
+#define ERTS_SIZEOF_TERM 4
 #else
 #error Neither 32 nor 64 bit architecture
 #endif
@@ -241,6 +253,8 @@ void erl_assert_error(char* expr, char* file, int line);
 #    define HALFWORD_HEAP 1
 #    define HALFWORD_ASSERT 0
 #    define ASSERT_HALFWORD(COND) ASSERT(COND)
+#    undef ERTS_SIZEOF_TERM
+#    define ERTS_SIZEOF_TERM 4
 #else
 #    define HALFWORD_HEAP 0
 #    define HALFWORD_ASSERT 0
@@ -367,6 +381,27 @@ typedef unsigned char byte;
 #error 64-bit architecture, but no appropriate type to use for Uint64 and Sint64 found 
 #endif
 
+#ifdef WORDS_BIGENDIAN
+#  define ERTS_HUINT_HVAL_HIGH 0
+#  define ERTS_HUINT_HVAL_LOW 1
+#else
+#  define ERTS_HUINT_HVAL_HIGH 1
+#  define ERTS_HUINT_HVAL_LOW 0
+#endif
+#if ERTS_SIZEOF_TERM == 8
+typedef union {
+    Uint val;
+    Uint32 hval[2];
+} HUint;
+#elif ERTS_SIZEOF_TERM == 4
+typedef union {
+    Uint val;
+    Uint16 hval[2];
+} HUint;
+#else
+#error "Unsupported size of term"
+#endif
+
 #  define ERTS_EXTRA_DATA_ALIGN_SZ(X) \
     (((size_t) 8) - (((size_t) (X)) & ((size_t) 7)))
 
@@ -505,6 +540,10 @@ __decl_noreturn void __noreturn erl_exit(int n, char*, ...);
 #define ERTS_ABORT_EXIT	(INT_MIN + 1)	/* no crash dump; only abort() */
 #define ERTS_DUMP_EXIT	(INT_MIN + 2)	/* crash dump; then exit() */
 
+#define ERTS_INTERNAL_ERROR(What) \
+    erl_exit(ERTS_ABORT_EXIT, "%s:%d:%s(): Internal error: %s\n", \
+	     __FILE__, __LINE__, __func__, What)
+
 Eterm erts_check_io_info(void *p);
 
 /* Size of misc memory allocated from system dependent code */
@@ -579,6 +618,7 @@ typedef struct _SysDriverOpts {
     char *wd;			/* Working directory. */
     unsigned spawn_type;        /* Bitfield of ERTS_SPAWN_DRIVER | 
 				   ERTS_SPAWN_EXTERNAL | both*/ 
+    int parallelism;            /* Optimize for parallelism */
 } SysDriverOpts;
 
 extern char *erts_default_arg0;