1 files changed, 28 insertions, 13 deletions

diff --git a/src/process.c b/src/process.c
index 8b1da4ac5cc..6d84d4c4a87 100644
--- a/src/process.c
+++ b/src/process.c
@@ -817,7 +817,7 @@ nil, indicating the current buffer's process.  */)
       Lisp_Object symbol;
       /* Assignment to EMACS_INT stops GCC whining about limited range
          of data type.  */
-      EMACS_INT pid = p->pid;;
+      EMACS_INT pid = p->pid;
 
       /* No problem storing the pid here, as it is still in Vprocess_alist.  */
       deleted_pid_list = Fcons (make_fixnum_or_float (pid),
@@ -830,7 +830,8 @@ nil, indicating the current buffer's process.  */)
       if (CONSP (p->status))
         symbol = XCAR (p->status);
       if (EQ (symbol, Qsignal) || EQ (symbol, Qexit))
-        Fdelete (make_fixnum_or_float (pid), deleted_pid_list);
+        deleted_pid_list
+          = Fdelete (make_fixnum_or_float (pid), deleted_pid_list);
       else
 #endif
         {
@@ -1818,7 +1819,8 @@ create_process (process, new_argv, current_dir)
      char **new_argv;
      Lisp_Object current_dir;
 {
-  int pid, inchannel, outchannel;
+  int inchannel, outchannel;
+  pid_t pid;
   int sv[2];
 #ifdef POSIX_SIGNALS
   sigset_t procmask;
@@ -3339,13 +3341,17 @@ usage: (make-network-process &rest ARGS)  */)
 #endif
     }
 
+  immediate_quit = 0;
+
 #ifdef HAVE_GETADDRINFO
   if (res != &ai)
-    freeaddrinfo (res);
+    {
+      BLOCK_INPUT;
+      freeaddrinfo (res);
+      UNBLOCK_INPUT;
+    }
 #endif
 
-  immediate_quit = 0;
-
   /* Discard the unwind protect for closing S, if any.  */
   specpdl_ptr = specpdl + count1;
 
@@ -6491,7 +6497,7 @@ sigchld_handler (signo)
 
   while (1)
     {
-      register EMACS_INT pid;
+      pid_t pid;
       WAITTYPE w;
       Lisp_Object tail;
 
@@ -6500,12 +6506,17 @@ sigchld_handler (signo)
 #define WUNTRACED 0
 #endif /* no WUNTRACED */
       /* Keep trying to get a status until we get a definitive result.  */
-      do
+      while (1)
         {
           errno = 0;
           pid = wait3 (&w, WNOHANG | WUNTRACED, 0);
+          if (! (pid < 0 && errno == EINTR))
+            break;
+          /* Avoid a busyloop: wait3 is a system call, so we do not want
+             to prevent the kernel from actually sending SIGCHLD to emacs
+             by asking for it all the time.  */
+          sleep (1);
         }
-      while (pid < 0 && errno == EINTR);
 
       if (pid <= 0)
         {
@@ -6531,11 +6542,15 @@ sigchld_handler (signo)
       /* Find the process that signaled us, and record its status.  */
 
       /* The process can have been deleted by Fdelete_process.  */
-      tail = Fmember (make_fixnum_or_float (pid), deleted_pid_list);
-      if (!NILP (tail))
+      for (tail = deleted_pid_list; GC_CONSP (tail); tail = XCDR (tail))
         {
-          Fsetcar (tail, Qnil);
-          goto sigchld_end_of_loop;
+          Lisp_Object xpid = XCAR (tail);
+          if ((GC_INTEGERP (xpid) && pid == (pid_t) XINT (xpid))
+              || (GC_FLOATP (xpid) && pid == (pid_t) XFLOAT_DATA (xpid)))
+            {
+              XSETCAR (tail, Qnil);
+              goto sigchld_end_of_loop;
+            }
         }
 
       /* Otherwise, if it is asynchronous, it is in Vprocess_alist.  */