SAFE_ALLOCA updated

[bpt/emacs.git] / src / callproc.c

diff --git a/src/callproc.c b/src/callproc.c
index 9e60ba1..70afbed 100644 (file)
--- a/src/callproc.c
+++ b/src/callproc.c
@@ -105,29 +105,6 @@ enum
 
 static Lisp_Object call_process (ptrdiff_t, Lisp_Object *, int, ptrdiff_t);
 \f
-
-#ifndef MSDOS
-/* Block SIGCHLD.  */
-
-void
-block_child_signal (void)
-{
-  sigset_t blocked;
-  sigemptyset (&blocked);
-  sigaddset (&blocked, SIGCHLD);
-  pthread_sigmask (SIG_BLOCK, &blocked, 0);
-}
-
-/* Unblock SIGCHLD.  */
-
-void
-unblock_child_signal (void)
-{
-  pthread_sigmask (SIG_SETMASK, &empty_mask, 0);
-}
-
-#endif /* !MSDOS */
-
 /* Return the current buffer's working directory, or the home
    directory if it's unreachable, as a string suitable for a system call.
    Signal an error if the result would not be an accessible directory.  */
@@ -167,7 +144,8 @@ void
 record_kill_process (struct Lisp_Process *p, Lisp_Object tempfile)
 {
 #ifndef MSDOS
-  block_child_signal ();
+  sigset_t oldset;
+  block_child_signal (&oldset);
 
   if (p->alive)
     {
@@ -176,7 +154,7 @@ record_kill_process (struct Lisp_Process *p, Lisp_Object tempfile)
       kill (- p->pid, SIGKILL);
     }
 
-  unblock_child_signal ();
+  unblock_child_signal (&oldset);
 #endif /* !MSDOS */
 }
 
@@ -321,6 +299,7 @@ call_process (ptrdiff_t nargs, Lisp_Object *args, int filefd,
   char *tempfile = NULL;
   int pid;
 #else
+  sigset_t oldset;
   pid_t pid;
 #endif
   int child_errno;
@@ -637,7 +616,7 @@ call_process (ptrdiff_t nargs, Lisp_Object *args, int filefd,
 #ifndef MSDOS
 
   block_input ();
-  block_child_signal ();
+  block_child_signal (&oldset);
 
 #ifdef WINDOWSNT
   pid = child_setup (filefd, fd_output, fd_error, new_argv, 0, current_dir);
@@ -649,11 +628,9 @@ call_process (ptrdiff_t nargs, Lisp_Object *args, int filefd,
     Lisp_Object volatile coding_systems_volatile = coding_systems;
     Lisp_Object volatile current_dir_volatile = current_dir;
     bool volatile display_p_volatile = display_p;
-    bool volatile sa_must_free_volatile = sa_must_free;
     int volatile fd_error_volatile = fd_error;
     int volatile filefd_volatile = filefd;
     ptrdiff_t volatile count_volatile = count;
-    ptrdiff_t volatile sa_count_volatile = sa_count;
     char **volatile new_argv_volatile = new_argv;
     int volatile callproc_fd_volatile[CALLPROC_FDS];
     for (i = 0; i < CALLPROC_FDS; i++)
@@ -665,11 +642,9 @@ call_process (ptrdiff_t nargs, Lisp_Object *args, int filefd,
     coding_systems = coding_systems_volatile;
     current_dir = current_dir_volatile;
     display_p = display_p_volatile;
-    sa_must_free = sa_must_free_volatile;
     fd_error = fd_error_volatile;
     filefd = filefd_volatile;
     count = count_volatile;
-    sa_count = sa_count_volatile;
     new_argv = new_argv_volatile;
 
     for (i = 0; i < CALLPROC_FDS; i++)
@@ -679,7 +654,7 @@ call_process (ptrdiff_t nargs, Lisp_Object *args, int filefd,
 
   if (pid == 0)
     {
-      unblock_child_signal ();
+      unblock_child_signal (&oldset);
 
       setsid ();
 
@@ -715,7 +690,7 @@ call_process (ptrdiff_t nargs, Lisp_Object *args, int filefd,
        }
     }
 
-  unblock_child_signal ();
+  unblock_child_signal (&oldset);
   unblock_input ();
 
   if (pid < 0)
@@ -826,8 +801,10 @@ call_process (ptrdiff_t nargs, Lisp_Object *args, int filefd,
          /* Now NREAD is the total amount of data in the buffer.  */
          immediate_quit = 0;
 
-         if (NILP (BVAR (current_buffer, enable_multibyte_characters))
-             && ! CODING_MAY_REQUIRE_DECODING (&process_coding))
+         if (!nread)
+           ;
+         else if (NILP (BVAR (current_buffer, enable_multibyte_characters))
+                  && ! CODING_MAY_REQUIRE_DECODING (&process_coding))
            insert_1_both (buf, nread, nread, 0, 1, 0);
          else
            {                   /* We have to decode the input.  */
@@ -835,6 +812,7 @@ call_process (ptrdiff_t nargs, Lisp_Object *args, int filefd,
              ptrdiff_t count1 = SPECPDL_INDEX ();
 
              XSETBUFFER (curbuf, current_buffer);
+             /* FIXME: Call signal_after_change!  */
              prepare_to_modify_buffer (PT, PT, NULL);
              /* We cannot allow after-change-functions be run
                 during decoding, because that might modify the
@@ -1625,13 +1603,13 @@ init_callproc (void)
 
       srcdir = Fexpand_file_name (build_string ("../src/"), lispdir);
 
-      tem = Fexpand_file_name (build_string ("GNU"), Vdata_directory);
+      tem = Fexpand_file_name (build_string ("NEWS"), Vdata_directory);
       tem1 = Ffile_exists_p (tem);
       if (!NILP (Fequal (srcdir, Vinvocation_directory)) || NILP (tem1))
        {
          Lisp_Object newdir;
          newdir = Fexpand_file_name (build_string ("../etc/"), lispdir);
-         tem = Fexpand_file_name (build_string ("GNU"), newdir);
+         tem = Fexpand_file_name (build_string ("NEWS"), newdir);
          tem1 = Ffile_exists_p (tem);
          if (!NILP (tem1))
            Vdata_directory = newdir;
@@ -1678,6 +1656,8 @@ set_initial_environment (void)
 void
 syms_of_callproc (void)
 {
+#include "callproc.x"
+
 #ifndef DOS_NT
   Vtemp_file_name_pattern = build_string ("emacsXXXXXX");
 #else  /* DOS_NT */
@@ -1765,8 +1745,4 @@ use.
 
 See `setenv' and `getenv'.  */);
   Vprocess_environment = Qnil;
-
-  defsubr (&Scall_process);
-  defsubr (&Sgetenv_internal);
-  defsubr (&Scall_process_region);
 }