1 files changed, 106 insertions, 0 deletions
diff --git a/libtecla-1.6.3/chrqueue.h b/libtecla-1.6.3/chrqueue.h
new file mode 100644
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+++ b/libtecla-1.6.3/chrqueue.h
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+#ifndef chrqueue_h
+#define chrqueue_h
+
+/*
+ * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2012 by Martin C. Shepherd.
+ * 
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, and/or sell copies of the Software, and to permit persons
+ * to whom the Software is furnished to do so, provided that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the Software and that both the above copyright notice(s) and this
+ * permission notice appear in supporting documentation.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+ * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
+ * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
+ * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ * 
+ * Except as contained in this notice, the name of a copyright holder
+ * shall not be used in advertising or otherwise to promote the sale, use
+ * or other dealings in this Software without prior written authorization
+ * of the copyright holder.
+ */
+
+/*-----------------------------------------------------------------------
+ * This module implements a queue of characters to be processed in some
+ * way. It is used by gl_get_line() to maintain a queue of characters
+ * to be sent to a remote terminal. Characters are recorded in a
+ * dynamically extensible list of fixed sized buffers.
+ */
+
+typedef struct GlCharQueue GlCharQueue;
+
+/*
+ * Create a new character queue.
+ */
+GlCharQueue *_new_GlCharQueue(void);
+
+/*
+ * Delete a redundant character queue.
+ */
+GlCharQueue *_del_GlCharQueue(GlCharQueue *cq);
+
+/*
+ * Append an array of n characters to a character queue.
+ */
+int _glq_append_chars(GlCharQueue *cq, const char *chars, int n,
+		      GlWriteFn *write_fn, void *data);
+
+/*
+ * Clear a character queue.
+ */
+void _glq_empty_queue(GlCharQueue *cq);
+
+/*
+ * Return a count of the number of characters in the queue.
+ */
+int _glq_char_count(GlCharQueue *cq);
+
+/*
+ * A structure of the following type is used by _glq_peek_chars() to
+ * return characters at the start of the queue.
+ */
+typedef struct {
+  const char *buff;  /* A pointer to the first undeleted byte in the */
+                     /*  first buffer of the queue. */
+  int nbuff;         /* The number of characters in buff[] */
+} GlCharQueueBuff;
+
+/*
+ * Enumerator values of the following type are returned by
+ * _glq_flush_queue() to indicate the status of the flush operation.
+ */
+typedef enum {
+  GLQ_FLUSH_DONE,   /* The flush operation completed successfully */
+  GLQ_FLUSH_AGAIN,  /* The flush operation couldn't be completed on this */
+                    /*  call. Call this function again when the output */
+                    /*  channel can accept further output. */
+  GLQ_FLUSH_ERROR   /* Unrecoverable error. */
+} GlqFlushState;
+
+/*
+ * Transfer as much of the contents of a character queue to an output
+ * channel as possible, returning before the queue is empty if the
+ * write_fn() callback says that it can't currently write anymore.
+ */
+GlqFlushState _glq_flush_queue(GlCharQueue *cq, GlWriteFn *write_fn,
+			       void *data);
+
+/*
+ * Provide information about the last error that occurred while calling
+ * any of the above functions.
+ */
+const char *_glq_last_error(GlCharQueue *cq);
+
+#endif