/* -*- c++ -*- */
/*
- * Copyright 2004 Free Software Foundation, Inc.
+ * Copyright 2004,2007 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
#ifndef INCLUDED_IO_SIGNATURE_H
#define INCLUDED_IO_SIGNATURE_H
-#include <gr_runtime.h>
+#include <gr_runtime_types.h>
/*!
- * \brief i/o signature for input and output ports.
+ * \brief Create an i/o signature
+ *
+ * \ingroup internal
+ * \param min_streams specify minimum number of streams (>= 0)
+ * \param max_streams specify maximum number of streams (>= min_streams or -1 -> infinite)
+ * \param sizeof_stream_item specify the size of the items in each stream
+ */
+gr_io_signature_sptr
+gr_make_io_signature(int min_streams, int max_streams,
+ int sizeof_stream_item);
+
+/*!
+ * \brief Create an i/o signature
+ *
+ * \param min_streams specify minimum number of streams (>= 0)
+ * \param max_streams specify maximum number of streams (>= min_streams or -1 -> infinite)
+ * \param sizeof_stream_item1 specify the size of the items in the first stream
+ * \param sizeof_stream_item2 specify the size of the items in the second and subsequent streams
+ */
+gr_io_signature_sptr
+gr_make_io_signature2(int min_streams, int max_streams,
+ int sizeof_stream_item1,
+ int sizeof_stream_item2
+ );
+
+/*!
+ * \brief Create an i/o signature
+ *
+ * \param min_streams specify minimum number of streams (>= 0)
+ * \param max_streams specify maximum number of streams (>= min_streams or -1 -> infinite)
+ * \param sizeof_stream_item1 specify the size of the items in the first stream
+ * \param sizeof_stream_item2 specify the size of the items in the second stream
+ * \param sizeof_stream_item3 specify the size of the items in the third and subsequent streams
+ */
+gr_io_signature_sptr
+gr_make_io_signature3(int min_streams, int max_streams,
+ int sizeof_stream_item1,
+ int sizeof_stream_item2,
+ int sizeof_stream_item3
+ );
+
+/*!
+ * \brief Create an i/o signature
*
- * For now, we restrict all streams to be the same type.
- * We can fix this later.
+ * \param min_streams specify minimum number of streams (>= 0)
+ * \param max_streams specify maximum number of streams (>= min_streams or -1 -> infinite)
+ * \param sizeof_stream_items specify the size of the items in the streams
+ *
+ * If there are more streams than there are entries in sizeof_stream_items, the
+ * value of the last entry in sizeof_stream_items is used for the missing values.
+ * sizeof_stream_items must contain at least 1 entry.
+ */
+gr_io_signature_sptr
+gr_make_io_signaturev(int min_streams, int max_streams,
+ const std::vector<int> &sizeof_stream_items);
+
+
+/*!
+ * \brief i/o signature for input and output ports.
+ * \brief misc
*/
-
class gr_io_signature {
+ int d_min_streams;
+ int d_max_streams;
+ std::vector<int> d_sizeof_stream_item;
+
+ gr_io_signature(int min_streams, int max_streams,
+ const std::vector<int> &sizeof_stream_items);
+
+ friend gr_io_signature_sptr
+ gr_make_io_signaturev(int min_streams,
+ int max_streams,
+ const std::vector<int> &sizeof_stream_items);
+
public:
static const int IO_INFINITE = -1;
int min_streams () const { return d_min_streams; }
int max_streams () const { return d_max_streams; }
- size_t sizeof_stream_item (int index) const { return d_sizeof_stream_item; }
-
- // ----------------------------------------------------------------------------
-
- private:
-
- int d_min_streams;
- int d_max_streams;
- size_t d_sizeof_stream_item;
-
- gr_io_signature (int min_streams, int max_streams, size_t sizeof_stream_item);
-
- friend gr_io_signature_sptr gr_make_io_signature (int min_streams,
- int max_streams,
- size_t sizeof_stream_item);
+ int sizeof_stream_item (int index) const;
+ std::vector<int> sizeof_stream_items() const;
};
-gr_io_signature_sptr
-gr_make_io_signature (int min_streams, int max_streams, size_t sizeof_stream_item);
-
#endif /* INCLUDED_IO_SIGNATURE_H */