Fix some fd issues when running subprocesses.

[bpt/emacs.git] / src / process.h

diff --git a/src/process.h b/src/process.h
index 3f86e5f..b312f7f 100644 (file)
--- a/src/process.h
+++ b/src/process.h
@@ -31,6 +31,11 @@ INLINE_HEADER_BEGIN
 # define PROCESS_INLINE INLINE
 #endif
 
+/* Bound on number of file descriptors opened on behalf of a process,
+   that need to be closed.  */
+
+enum { PROCESS_OPEN_FDS = 6 };
+
 /* This structure records information about a subprocess
    or network connection.  */
 
@@ -115,6 +120,9 @@ struct Lisp_Process
     int infd;
     /* Descriptor by which we write to this process */
     int outfd;
+    /* Descriptors that were created for this process and that need
+       closing.  Unused entries are negative.  */
+    int open_fd[PROCESS_OPEN_FDS];
     /* Event-count of last event in which this process changed status.  */
     EMACS_INT tick;
     /* Event-count of last such event reported.  */
@@ -198,17 +206,28 @@ extern Lisp_Object QCspeed;
 extern Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven;
 extern Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary;
 
+/* Exit statuses for GNU programs that exec other programs.  */
+enum
+{
+  EXIT_CANCELED = 125, /* Internal error prior to exec attempt.  */
+  EXIT_CANNOT_INVOKE = 126, /* Program located, but not usable.  */
+  EXIT_ENOENT = 127 /* Could not find program to exec.  */
+};
+
 /* Defined in callproc.c.  */
 
 extern void block_child_signal (void);
 extern void unblock_child_signal (void);
-extern void record_kill_process (struct Lisp_Process *);
+extern void record_kill_process (struct Lisp_Process *, Lisp_Object);
 
-/* Defined in process.c.  */
+/* Defined in sysdep.c.  */
 
 extern Lisp_Object list_system_processes (void);
 extern Lisp_Object system_process_attributes (Lisp_Object);
 
+/* Defined in process.c.  */
+
+extern void record_deleted_pid (pid_t, Lisp_Object);
 extern void hold_keyboard_input (void);
 extern void unhold_keyboard_input (void);
 extern bool kbd_on_hold_p (void);
@@ -219,6 +238,8 @@ extern void add_read_fd (int fd, fd_callback func, void *data);
 extern void delete_read_fd (int fd);
 extern void add_write_fd (int fd, fd_callback func, void *data);
 extern void delete_write_fd (int fd);
+#ifdef NS_IMPL_GNUSTEP
 extern void catch_child_signal (void);
+#endif
 
 INLINE_HEADER_END