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authorJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
commit6e9c41a892ed0e0da326e0278b3221ce3f5713b8 (patch)
tree2e301d871bbeeb44aa57ff9cc070fcf3be484487 /backend/gt68xx_shm_channel.h
Initial import of sane-backends version 1.0.24-1.2
Diffstat (limited to 'backend/gt68xx_shm_channel.h')
-rw-r--r--backend/gt68xx_shm_channel.h106
1 files changed, 106 insertions, 0 deletions
diff --git a/backend/gt68xx_shm_channel.h b/backend/gt68xx_shm_channel.h
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+++ b/backend/gt68xx_shm_channel.h
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+/* sane - Scanner Access Now Easy.
+
+ Copyright (C) 2002 Sergey Vlasov <vsu@altlinux.ru>
+
+ This file is part of the SANE 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., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, the authors of SANE give permission for
+ additional uses of the libraries contained in this release of SANE.
+
+ The exception is that, if you link a SANE library with other files
+ to produce an executable, this does not by itself cause the
+ resulting executable to be covered by the GNU General Public
+ License. Your use of that executable is in no way restricted on
+ account of linking the SANE library code into it.
+
+ This exception does not, however, invalidate any other reasons why
+ the executable file might be covered by the GNU General Public
+ License.
+
+ If you submit changes to SANE to the maintainers to be included in
+ a subsequent release, you agree by submitting the changes that
+ those changes may be distributed with this exception intact.
+
+ If you write modifications of your own for SANE, it is your choice
+ whether to permit this exception to apply to your modifications.
+ If you do not wish that, delete this exception notice.
+*/
+
+#ifndef GT68XX_SHM_CHANNEL_H
+#define GT68XX_SHM_CHANNEL_H
+
+/** @file
+ * @brief Shared memory channel support.
+ */
+
+#include "../include/sane/sane.h"
+
+typedef struct Shm_Channel Shm_Channel;
+
+static SANE_Status
+shm_channel_new (SANE_Int buf_size,
+ SANE_Int buf_count, Shm_Channel ** shm_channel_return);
+
+static SANE_Status shm_channel_free (Shm_Channel * shm_channel);
+
+
+static SANE_Status shm_channel_writer_init (Shm_Channel * shm_channel);
+
+static SANE_Status
+shm_channel_writer_get_buffer (Shm_Channel * shm_channel,
+ SANE_Int * buffer_id_return,
+ SANE_Byte ** buffer_addr_return);
+
+static SANE_Status
+shm_channel_writer_put_buffer (Shm_Channel * shm_channel,
+ SANE_Int buffer_id, SANE_Int buffer_bytes);
+
+static SANE_Status shm_channel_writer_close (Shm_Channel * shm_channel);
+
+
+static SANE_Status shm_channel_reader_init (Shm_Channel * shm_channel);
+
+#if 0
+static SANE_Status
+shm_channel_reader_set_io_mode (Shm_Channel * shm_channel,
+ SANE_Bool non_blocking);
+
+static SANE_Status
+shm_channel_reader_get_select_fd (Shm_Channel * shm_channel,
+ SANE_Int * fd_return);
+
+#endif
+
+static SANE_Status shm_channel_reader_start (Shm_Channel * shm_channel);
+
+static SANE_Status
+shm_channel_reader_get_buffer (Shm_Channel * shm_channel,
+ SANE_Int * buffer_id_return,
+ SANE_Byte ** buffer_addr_return,
+ SANE_Int * buffer_bytes_return);
+
+static SANE_Status
+shm_channel_reader_put_buffer (Shm_Channel * shm_channel, SANE_Int buffer_id);
+
+#if 0
+static SANE_Status shm_channel_reader_close (Shm_Channel * shm_channel);
+#endif
+
+#endif /* not GT68XX_SHM_CHANNEL_H */
+
+/* vim: set sw=2 cino=>2se-1sn-1s{s^-1st0(0u0 smarttab expandtab: */