* autoload.cc (LoadDLLinitfunc): Remove debugging statement.

* exceptions.cc (sig_handle_tty_stop): Move setting of PID_STOPPED to earlier
in interrupt.
((interrupt_setup): i.e., here.
(sig_handle): Don't queue multiple SIGSTOPS.
* fhandler.h (bg_check_types): Enumerate return value of bg_check for clarity.
* signal.cc (kill_pgrp): Minor cleanup.
* fhandler_termios.cc (fhandler_termios::bg_check): Use enumerated type for
function return.  Don't raise signal if a signal is already queued.
* fhandler_console.cc (fhandler_console::read): Use enumerated return type for
bg_check.
* select.cc: Ditto, throughout.
* read.cc: Ditto, throughout.
* termios.cc: Ditto, throughout.
(_read): YA interrupt detect simplification.
* wait.cc (wait4): Ditto.

1 files changed, 10 insertions, 2 deletions

diff --git a/winsup/cygwin/fhandler.h b/winsup/cygwin/fhandler.h
index 356eb6beb..92cf8c300 100644
--- a/winsup/cygwin/fhandler.h
+++ b/winsup/cygwin/fhandler.h
@@ -122,6 +122,14 @@ class select_record;
 class path_conv;
 class fhandler_disk_file;
 
+enum bg_check_types
+{
+  bg_error = -1,
+  bg_eof = 0,
+  bg_ok = 1,
+  bg_signalled = 2
+};
+
 class fhandler_base
 {
 private:
@@ -310,7 +318,7 @@ public:
   {
     return windows_device_names[FHDEVN (status)];
   }
-  virtual int bg_check (int) {return 1;}
+  virtual bg_check_types bg_check (int) {return bg_ok;}
   void clear_readahead ()
   {
     raixput = raixget = ralen = rabuflen = 0;
@@ -562,7 +570,7 @@ public:
   int tcgetpgrp ();
   int tcsetpgrp (int pid);
   void set_ctty (int ttynum, int flags);
-  int bg_check (int sig);
+  bg_check_types bg_check (int sig);
   virtual DWORD __acquire_output_mutex (const char *fn, int ln, DWORD ms) {return 1;}
   virtual void __release_output_mutex (const char *fn, int ln) {}
 };