From ab8cc85adde879fb963c94d15675783f2cf4b183 Mon Sep 17 00:00:00 2001
From: dos-reis <gdr@axiomatics.org>
Date: Tue, 14 Aug 2007 05:14:52 +0000
Subject: Initial population.

---
 src/graph/viewman/sselect.c.pamphlet | 124 +++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 src/graph/viewman/sselect.c.pamphlet

(limited to 'src/graph/viewman/sselect.c.pamphlet')

diff --git a/src/graph/viewman/sselect.c.pamphlet b/src/graph/viewman/sselect.c.pamphlet
new file mode 100644
index 00000000..6236fa01
--- /dev/null
+++ b/src/graph/viewman/sselect.c.pamphlet
@@ -0,0 +1,124 @@
+\documentclass{article}
+\usepackage{axiom}
+\begin{document}
+\title{\$SPAD/src/graph/viewman sselect.c}
+\author{The Axiom Team}
+\maketitle
+\begin{abstract}
+\end{abstract}
+\eject
+\tableofcontents
+\eject
+\section{License}
+<<license>>=
+/*
+Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    - Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    - Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in
+      the documentation and/or other materials provided with the
+      distribution.
+
+    - Neither the name of The Numerical ALgorithms Group Ltd. nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+@
+<<*>>=
+<<license>>
+
+#define _SSELECT_C
+#include "axiom-c-macros.h"
+#include "useproto.h"
+
+#include <stdio.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <signal.h>
+
+#include "viewman.h"
+#include "bsdsignal.h"
+
+#include "sockio-c.H1"
+#include "bsdsignal.H1"
+#include "cleanup.H1"
+#include "sselect.H1"
+
+/*******************************************
+ * int superSelect(n, rd, wr, ex, timeout) *
+ *                                         *
+ * superselect! if select returns a -1     *
+ * due to an interrupt (EINTR), this       *
+ * routine checks to see if it's a         *
+ * child viewport that has closed.         *
+ * Expected global variables:              *
+ *   int  checkClosedChild                 *
+ *******************************************/
+ 
+int 
+#ifdef _NO_PROTO
+superSelect(n, rd, wr, ex, timeout)
+     int n;
+     int *rd, *wr, *ex;
+     char *timeout;
+#else
+superSelect(int n, int *rd, int *wr, int *ex, char *timeout)
+#endif
+{
+  
+  int waiting;
+  viewManager *viewport;
+  int ret_val;
+  
+  ret_val = select(n, (void *)rd, (void *)wr, (void *)ex, (void *)timeout);
+  while (ret_val == -1 && errno == EINTR) {
+    /* checkClosedChild gets set by the SIGCHLD handler */
+    if (checkClosedChild) {
+      while ((waiting = wait(0)) == -1 );
+      viewport = viewports;
+      while ((viewport) && (viewport->PID != waiting))
+	viewport = viewport->nextViewport;
+      if (viewport) {
+	/* we shouldn't really be doing this since child is dead */
+	/* rmViewMgr(viewport); */
+	/* flush(spadSock); */
+        /* send_int(spadSock,1);   acknowledge to spad */
+        checkClosedChild = no;
+#if defined(BSDplatform) || defined(MACOSXplatform)
+        bsdSignal(SIGCHLD,endChild,DontRestartSystemCalls);
+#else
+        bsdSignal(SIGCLD,endChild,DontRestartSystemCalls);
+#endif
+      }
+    }
+    ret_val = select(n, (void *)rd, (void *)wr, (void *)ex, (void *)timeout);
+  }
+  return ret_val;
+}
+@
+\eject
+\begin{thebibliography}{99}
+\bibitem{1} nothing
+\end{thebibliography}
+\end{document}
-- 
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