1 files changed, 81 insertions, 0 deletions
diff --git a/gs/base/strmio.h b/gs/base/strmio.h
new file mode 100644
index 000000000..5921470fa
--- /dev/null
+++ b/gs/base/strmio.h
@@ -0,0 +1,81 @@
+/* Copyright (C) 2006 Artifex Software, Inc.
+   All Rights Reserved.
+  
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* $Id$ */
+/* Interface for streams that mimic stdio functions (fopen, fread, fseek, ftell) */
+/* Requires stream.h */
+
+#ifndef strmio_INCLUDED
+#  define strmio_INCLUDED
+
+#ifndef stream_DEFINED
+#  define stream_DEFINED
+typedef struct stream_s stream;
+#endif /* stream_DEFINED */
+
+#ifndef gs_memory_DEFINED
+#  define gs_memory_DEFINED
+typedef struct gs_memory_s gs_memory_t;
+#endif /* gs_memory_DEFINED */
+
+/*
+ * Open a stream using a filename that can include a PS style IODevice prefix
+ * If iodev_default is the '%os' device, then the file will be on the host
+ * file system transparently to the caller. The "%os%" prefix can be used
+ * to explicilty access the host file system.
+ */
+stream * sfopen(const char *path, const char *mode, gs_memory_t *mem);
+
+/*
+ * Read a number of bytes from a stream, returning number read. Return count
+ * will be less than count if EOF or error. Return count is number of elements.
+ */
+int sfread(void *ptr, size_t size, size_t count, stream *s);	
+
+/*
+ * Read a byte from a stream
+ */
+int sfgetc(stream *s);
+
+/*
+ * Seek to a position in the stream. Returns the 0, or -1 if error
+ */
+int sfseek(stream *s, long offset, int whence);
+
+/*
+ * Seek to beginning of the file
+ */
+int srewind(stream *s);;
+
+/*
+ * Return the current position in the stream or -1 if error.
+ */
+long sftell(stream *s);
+
+/*
+ * Return the EOF status, or 0 if not at EOF.
+ */
+int sfeof(stream *s);
+
+/*
+ * Return the error status, or 0 if no error
+ */
+int sferror(stream *s);
+
+/*
+ * close and free the stream. Any further access (including another call to sfclose())
+ * to  the  stream results in undefined behaviour (reference to freed memory);
+ */
+int sfclose(stream *s);
+
+#endif /* strmio_INCLUDED */