Use fewer locks when accessing stdio

* src/alloc.c, src/bidi.c, src/emacs-module.c, src/pdumper.c:
* src/regex-emacs.c, src/unexhp9k800.c, src/unexmacosx.c:
* src/widget.c, src/xdisp.c, src/xselect.c, src/xterm.c:
Include sysstdio.h instead of stdio.h, to avoid locking
stdio streams in many cases.
* src/alloc.c (test_setjmp):
* src/bidi.c (bidi_dump_cached_states):
* src/cm.c (calccost):
* src/dispnew.c (init_display_interactive):
* src/emacs.c (main):
* src/image.c (convert_mono_to_color_image):
* src/minibuf.c (read_minibuf_noninteractive):
* src/nsfont.m (ns_descriptor_to_entity)
(ns_dump_glyphstring):
* src/nsterm.h (NSTRACE_MSG_NO_DASHES):
* src/nsterm.m (ns_mouse_position)
(sendEvent:, keyDown:, performDragOperation:):
* src/pdumper.c (dump_fingerprint, print_paths_to_root_1):
* src/print.c (debug_print):
* src/regex-emacs.c (debug_putchar, print_fastmap)
(print_partial_compiled_pattern, print_compiled_pattern)
(print_double_string, regex_compile):
* src/term.c (vfatal):
* src/unexhp9k800.c (read_header):
* src/unexmacosx.c (unexec_error):
* src/widget.c (EmacsFrameInitialize):
* src/xdisp.c (message_to_stderr, vmessage, dump_glyph_row)
(Fdump_glyph_matrix, Fdump_frame_glyph_matrix, dump_glyph_string):
* src/xfaces.c (Fdump_colors, Fdump_face):
* src/xselect.c (x_clipboard_manager_error_2):
* src/xterm.c (x_initialize):
* src/xwidget.c (WEBKIT_FN_INIT):
Prefer unlocked calls like fputs to locked calls like fprintf.
* src/charset.c (read_hex):
* src/cm.c (cmputc, cmcheckmagic):
* src/dispnew.c (update_frame, update_frame_with_menu)
(update_frame_1, Fsend_string_to_terminal, Fding)
(bitch_at_user):
* src/emacs.c (main, Fdump_emacs):
* src/emacs-module.c (module_abort):
* src/fileio.c (Fdo_auto_save):
* src/image.c (slurp_file)
(png_read_from_file, png_load_body, our_stdio_fill_input_buffer):
* src/keyboard.c (record_char, kbd_buffer_get_event)
(handle_interrupt):
* src/lread.c (readbyte_from_stdio, read1):
* src/minibuf.c (read_minibuf_noninteractive):
* src/print.c (printchar_to_stream, strout)
(Fredirect_debugging_output):
* src/sysdep.c (reset_sys_modes, close_output_streams)
(procfs_ttyname, procfs_get_total_memory):
* src/term.c (tty_ring_bell, tty_send_additional_strings)
(tty_set_terminal_modes, tty_reset_terminal_modes)
(tty_update_end, tty_clear_end_of_line, tty_write_glyphs)
(tty_write_glyphs_with_face, tty_insert_glyphs)
(tty_menu_activate):
* src/xfaces.c (Fx_load_color_file):
Simplify by using ordinary calls like putc to explicitly-unlocked
calls like putc_unlocked, since the ordinary calls are now
unlocked anyway.
* src/emacs.c (main, Fdump_emacs):
* src/pdumper.c (Fdump_emacs_portable):
Coalesce adjacent printfs.
* src/nsterm.h: Include sysstdio.h as this file’s macros rely on it.
* src/regex-emacs.c (print_compiled_pattern):
Omit redundant fflush.
* src/sysstdio.h: Include unlocked-io.h.
(clearerr_unlocked, feof_unlocked, ferror_unlocked)
(fflush_unlocked, fgets_unlocked, fputc_unlocked)
(fputs_unlocked, fread_unlocked, fwrite_unlocked)
(getc_unlocked, getchar_unlocked, putc_unlocked)
(putchar_unlocked): Remove these macros; now done by unlocked-io.h.
* src/xwidget.c: Include sysstdio.h.

1 files changed, 8 insertions, 9 deletions

diff --git a/src/keyboard.c b/src/keyboard.c
index 56916e0cb4e..c47eecab9fb 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -3311,7 +3311,7 @@ record_char (Lisp_Object c)
       if (FIXNUMP (c))
 	{
 	  if (XUFIXNUM (c) < 0x100)
-	    putc_unlocked (XUFIXNUM (c), dribble);
+	    putc (XUFIXNUM (c), dribble);
 	  else
 	    fprintf (dribble, " 0x%"pI"x", XUFIXNUM (c));
 	}
@@ -3324,15 +3324,14 @@ record_char (Lisp_Object c)
 
 	  if (SYMBOLP (dribblee))
 	    {
-	      putc_unlocked ('<', dribble);
-	      fwrite_unlocked (SDATA (SYMBOL_NAME (dribblee)), sizeof (char),
-			       SBYTES (SYMBOL_NAME (dribblee)),
-			       dribble);
-	      putc_unlocked ('>', dribble);
+	      putc ('<', dribble);
+	      fwrite (SDATA (SYMBOL_NAME (dribblee)), sizeof (char),
+		      SBYTES (SYMBOL_NAME (dribblee)), dribble);
+	      putc ('>', dribble);
 	    }
 	}
 
-      fflush_unlocked (dribble);
+      fflush (dribble);
       unblock_input ();
     }
 }
@@ -3769,7 +3768,7 @@ kbd_buffer_get_event (KBOARD **kbp,
 	 detaching from the terminal.  */
       || (IS_DAEMON && DAEMON_RUNNING))
     {
-      int c = getchar_unlocked ();
+      int c = getchar ();
       XSETINT (obj, c);
       *kbp = current_kboard;
       return obj;
@@ -10394,7 +10393,7 @@ handle_interrupt (bool in_signal_handler)
 	  sigemptyset (&blocked);
 	  sigaddset (&blocked, SIGINT);
 	  pthread_sigmask (SIG_BLOCK, &blocked, 0);
-	  fflush_unlocked (stdout);
+	  fflush (stdout);
 	}
 
       reset_all_sys_modes ();