emacs_write: Accept and return EMACS_INT for sizes.

diff --cc src/ChangeLog
index 706751bbdfab2b2eaf4f7080388a1f21ad705592,3025e459fd0c99c781953de9db2452f0bf47f008..200c20fc3bf0ce5f5ce4866b63bfce61eba802b3
--- 1/src/ChangeLog
--- 2/src/ChangeLog
+++ b/src/ChangeLog
@@@ -1,3 -1,30 +1,30 @@@
 -      Return size_t, not int.
+ 2011-04-15  Paul Eggert  <eggert@cs.ucla.edu>
+ 
+       emacs_write: Accept and return EMACS_INT for sizes.
+       See http://lists.gnu.org/archive/html/emacs-devel/2011-04/msg00514.html
+       et seq.
+       * gnutls.c, gnutls.h (emacs_gnutls_read, emacs_gnutls_write):
+       Accept and return EMACS_INT.
+       (emacs_gnutls_write): Return the number of bytes written on
+       partial writes.
+       * sysdep.c, lisp.h (emacs_read, emacs_write): Likewise.
+       (emacs_read, emacs_write): Remove check for negative size, as the
+       Emacs source code has been audited now.
+       * sysdep.c (MAX_RW_COUNT): New macro, to work around kernel bugs.
+       (emacs_read, emacs_write): Use it.
+       * process.c (send_process): Adjust to the new signatures of
+       emacs_write and emacs_gnutls_write.  Do not attempt to store
+       a byte offset into an 'int'; it might overflow.
+       See http://lists.gnu.org/archive/html/emacs-devel/2011-04/msg00483.html
+ 
+       * sound.c: Don't assume sizes fit in 'int'.
+       (struct sound_device.period_size, alsa_period_size):
 -      Accept size_t, not int.
 -      (wav_play, au_play): Use size_t to store sizes, and ssize_t to
++      Return EMACS_INT, not int.
+       (struct sound_device.write, vox_write, alsa_write):
++      Accept EMACS_INT, not int.
++      (wav_play, au_play): Use EMACS_INT to store sizes and to
+       record read return values.
+ 
  2011-04-15  Ben Key  <bkey76@gmail.com>
  
        * keyboard.c (Qundefined):  Don't declare static since it is