* defs.h (wait_to_die_with_timeout): Declare.

	* utils.c: #include "gdb_wait.h".
	(sigalrm_handler, wait_to_die_with_timeout): New functions.
	* ser-pipe.c: Don't #include "gdb_wait.h".
	(pipe_close): Give child a chance to die on its own after closing
	its stdin before SIGTERM'ing it.

1 files changed, 20 insertions, 5 deletions

diff --git a/gdb/ser-pipe.c b/gdb/ser-pipe.c
index 9bf0d04..7f71987 100644
--- a/gdb/ser-pipe.c
+++ b/gdb/ser-pipe.c
@@ -31,7 +31,6 @@
 #include <sys/time.h>
 #include <fcntl.h>
 #include "gdb_string.h"
-#include "gdb_wait.h"
 
 #include <signal.h>
 
@@ -163,14 +162,30 @@ pipe_close (struct serial *scb)
 
   if (state != NULL)
     {
-      int status;
-      kill (state->pid, SIGTERM);
-#ifdef HAVE_WAITPID
+      int wait_result, status;
+
+      /* Don't kill the task right away, give it a chance to shut down cleanly.
+	 But don't wait forever though.  */
+#define PIPE_CLOSE_TIMEOUT 5
+
       /* Assume the program will exit after SIGTERM.  Might be
 	 useful to print any remaining stderr output from
 	 scb->error_fd while waiting.  */
-      waitpid (state->pid, &status, 0);
+#define SIGTERM_TIMEOUT INT_MAX
+
+      wait_result = -1;
+#ifdef HAVE_WAITPID
+      wait_result = wait_to_die_with_timeout (state->pid, &status,
+					      PIPE_CLOSE_TIMEOUT);
 #endif
+      if (wait_result == -1)
+	{
+	  kill (state->pid, SIGTERM);
+#ifdef HAVE_WAITPID
+	  wait_to_die_with_timeout (state->pid, &status, SIGTERM_TIMEOUT);
+#endif
+	}
+
       if (scb->error_fd != -1)
 	close (scb->error_fd);
       scb->error_fd = -1;