1 files changed, 97 insertions, 0 deletions
diff --git a/sourcecodes/localscore/eventloop.h b/sourcecodes/localscore/eventloop.h
new file mode 100644
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+++ b/sourcecodes/localscore/eventloop.h
@@ -0,0 +1,97 @@
+/*
+ *  R : A Computer Language for Statistical Data Analysis
+ *  Copyright (C) 2000-2007 The R Core Team.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 2.1 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this program; if not, a copy is available at
+ *  http://www.r-project.org/Licenses/
+ */
+
+/* 
+   For use by alternative front-ends and packages which need to share
+   the R event loop (on all platforms).
+
+   Not part of the API and subject to change without notice.
+ */
+
+#ifndef R_EXT_EVENTLOOP_H
+#define R_EXT_EVENTLOOP_H
+
+#ifndef NO_C_HEADERS
+#ifdef HAVE_SYS_SELECT_H
+# include <sys/select.h>	/* for fd_set according to recent POSIX */
+#endif
+/* NOTE: Needed at least on FreeBSD so that fd_set is defined. */
+# include <sys/types.h>
+#endif
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+#define XActivity 1
+#define StdinActivity 2
+
+typedef void (*InputHandlerProc)(void *userData); 
+
+typedef struct _InputHandler {
+
+  int activity;
+  int fileDescriptor;
+  InputHandlerProc handler;
+
+  struct _InputHandler *next;
+
+    /* Whether we should be listening to this file descriptor or not. */
+  int active;
+
+    /* Data that can be passed to the routine as its only argument.
+       This might be a user-level function or closure when we implement
+       a callback to R mechanism. 
+     */
+  void *userData;
+
+} InputHandler;
+
+
+extern InputHandler *initStdinHandler(void);
+extern void consoleInputHandler(unsigned char *buf, int len);
+
+extern InputHandler *addInputHandler(InputHandler *handlers, int fd, InputHandlerProc handler, int activity);
+extern InputHandler *getInputHandler(InputHandler *handlers, int fd);
+extern int           removeInputHandler(InputHandler **handlers, InputHandler *it);
+extern InputHandler *getSelectedHandler(InputHandler *handlers, fd_set *mask);
+extern fd_set *R_checkActivity(int usec, int ignore_stdin);
+extern fd_set *R_checkActivityEx(int usec, int ignore_stdin, void (*intr)(void));
+extern void R_runHandlers(InputHandler *handlers, fd_set *mask);
+
+extern int R_SelectEx(int  n,  fd_set  *readfds,  fd_set  *writefds,
+		      fd_set *exceptfds, struct timeval *timeout,
+		      void (*intr)(void));
+
+#ifdef __SYSTEM__
+#ifndef __cplusplus   /* Would get duplicate conflicting symbols*/
+InputHandler *R_InputHandlers;
+#endif
+#else
+extern InputHandler *R_InputHandlers;
+#endif
+
+extern void (* R_PolledEvents)(void);
+extern int R_wait_usec;
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif /* R_EXT_EVENTLOOP_H */