1 files changed, 123 insertions, 0 deletions
diff --git a/frontend/xsane-rc-io.h b/frontend/xsane-rc-io.h
new file mode 100644
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+++ b/frontend/xsane-rc-io.h
@@ -0,0 +1,123 @@
+/* xsane -- a graphical (X11, gtk) scanner-oriented SANE frontend
+
+   xsane-rc-io.h
+
+   Oliver Rauch <Oliver.Rauch@Wolfsburg.DE>
+   Copyright (C) 1998-2000 Oliver Rauch
+   This file is part of the XSANE package.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */ 
+
+/* ---------------------------------------------------------------------------------------------------------------- */
+
+#ifndef xsane_rc_io_h
+#define xsane_rc_io_h
+
+#include <sys/types.h>
+
+/* ---------------------------------------------------------------------------------------------------------------------- */
+
+#define XSANE_EOF -1   
+
+/* ---------------------------------------------------------------------------------------------------------------- */
+
+typedef enum
+  {
+    WIRE_ENCODE = 0,
+    WIRE_DECODE,
+    WIRE_FREE
+  }
+WireDirection;
+
+/* ---------------------------------------------------------------------------------------------------------------- */
+
+struct Wire;
+
+/* ---------------------------------------------------------------------------------------------------------------- */
+
+typedef void (*WireCodecFunc) (struct Wire *w, void *val_ptr);
+typedef ssize_t (*WireReadFunc) (int fd, void * buf, size_t len);
+typedef ssize_t (*WireWriteFunc) (int fd, const void * buf, size_t len);
+
+/* ---------------------------------------------------------------------------------------------------------------- */
+
+typedef struct Wire
+  {
+    int version;		/* protocol version in use */
+    WireDirection direction;
+    int status;
+    struct
+      {
+	WireCodecFunc w_byte;
+	WireCodecFunc w_char;
+	WireCodecFunc w_word;
+	WireCodecFunc w_string;
+      }
+    codec;
+    struct
+      {
+	size_t size;
+	char *curr;
+	char *start;
+	char *end;
+      }
+    buffer;
+    struct
+      {
+	int fd;
+	WireReadFunc read;
+	WireWriteFunc write;
+      }
+    io;
+  }
+Wire;
+
+/* ---------------------------------------------------------------------------------------------------------------- */
+
+extern void xsane_rc_io_w_init(Wire *w);
+extern void xsane_rc_io_w_space(Wire *w, size_t howmuch);
+extern void xsane_rc_io_w_skip_newline(Wire *w);
+extern void xsane_rc_io_w_void(Wire *w);
+extern void xsane_rc_io_w_byte(Wire *w, SANE_Byte *v);
+extern void xsane_rc_io_w_char(Wire *w, SANE_Char *v);
+extern void xsane_rc_io_w_word(Wire *w, SANE_Word *v);
+extern void xsane_rc_io_w_string(Wire *w, SANE_String *v);
+extern void xsane_rc_io_w_status(Wire *w, SANE_Status *v);
+extern void xsane_rc_io_w_constraint_type(Wire *w, SANE_Constraint_Type *v);
+extern void xsane_rc_io_w_value_type(Wire *w, SANE_Value_Type *v);
+extern void xsane_rc_io_w_unit(Wire *w, SANE_Unit *v);
+extern void xsane_rc_io_w_action(Wire *w, SANE_Action *v);
+extern void xsane_rc_io_w_frame(Wire *w, SANE_Frame *v);
+extern void xsane_rc_io_w_range(Wire *w, SANE_Range *v);
+extern void xsane_rc_io_w_range_ptr(Wire *w, SANE_Range **v);
+extern void xsane_rc_io_w_device(Wire *w, SANE_Device *v);
+extern void xsane_rc_io_w_device_ptr(Wire *w, SANE_Device **v);
+extern void xsane_rc_io_w_option_descriptor(Wire *w, SANE_Option_Descriptor *v);
+extern void xsane_rc_io_w_option_descriptor_ptr(Wire *w, SANE_Option_Descriptor **v);
+extern void xsane_rc_io_w_parameters(Wire *w, SANE_Parameters *v);
+extern void xsane_rc_io_w_array(Wire *w, SANE_Word *len, void **v, WireCodecFunc w_element, size_t element_size);
+extern void xsane_rc_io_w_flush(Wire *w);
+extern void xsane_rc_io_w_set_dir(Wire *w, WireDirection dir);
+extern void xsane_rc_io_w_call(Wire *w, SANE_Word proc_num, WireCodecFunc w_arg, void *arg, WireCodecFunc w_reply, void *reply);
+extern void xsane_rc_io_w_reply(Wire *w, WireCodecFunc w_reply, void *reply);
+extern void xsane_rc_io_w_free(Wire *w, WireCodecFunc w_reply, void *reply);
+
+extern void xsane_rc_pref_string(Wire *w, void *p, long offset);
+extern void xsane_rc_pref_double(Wire *w, void *p, long offset);
+extern void xsane_rc_pref_int(Wire *w, void *p, long offset);
+
+/* ---------------------------------------------------------------------------------------------------------------- */
+
+#endif /* xsane_rc_io_wire_h */