kopia lustrzana https://gitlab.com/sane-project/backends
105 wiersze
3.4 KiB
C
105 wiersze
3.4 KiB
C
/* sane - Scanner Access Now Easy.
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Copyright (C) 2002 Sergey Vlasov <vsu@altlinux.ru>
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This file is part of the SANE package.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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As a special exception, the authors of SANE give permission for
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additional uses of the libraries contained in this release of SANE.
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The exception is that, if you link a SANE library with other files
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to produce an executable, this does not by itself cause the
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resulting executable to be covered by the GNU General Public
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License. Your use of that executable is in no way restricted on
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account of linking the SANE library code into it.
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This exception does not, however, invalidate any other reasons why
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the executable file might be covered by the GNU General Public
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License.
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If you submit changes to SANE to the maintainers to be included in
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a subsequent release, you agree by submitting the changes that
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those changes may be distributed with this exception intact.
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If you write modifications of your own for SANE, it is your choice
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whether to permit this exception to apply to your modifications.
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If you do not wish that, delete this exception notice.
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*/
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#ifndef GT68XX_SHM_CHANNEL_H
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#define GT68XX_SHM_CHANNEL_H
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/** @file
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* @brief Shared memory channel support.
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*/
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#include "../include/sane/sane.h"
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typedef struct Shm_Channel Shm_Channel;
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static SANE_Status
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shm_channel_new (SANE_Int buf_size,
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SANE_Int buf_count, Shm_Channel ** shm_channel_return);
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static SANE_Status shm_channel_free (Shm_Channel * shm_channel);
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static SANE_Status shm_channel_writer_init (Shm_Channel * shm_channel);
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static SANE_Status
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shm_channel_writer_get_buffer (Shm_Channel * shm_channel,
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SANE_Int * buffer_id_return,
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SANE_Byte ** buffer_addr_return);
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static SANE_Status
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shm_channel_writer_put_buffer (Shm_Channel * shm_channel,
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SANE_Int buffer_id, SANE_Int buffer_bytes);
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static SANE_Status shm_channel_writer_close (Shm_Channel * shm_channel);
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static SANE_Status shm_channel_reader_init (Shm_Channel * shm_channel);
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#if 0
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static SANE_Status
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shm_channel_reader_set_io_mode (Shm_Channel * shm_channel,
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SANE_Bool non_blocking);
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static SANE_Status
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shm_channel_reader_get_select_fd (Shm_Channel * shm_channel,
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SANE_Int * fd_return);
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#endif
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static SANE_Status shm_channel_reader_start (Shm_Channel * shm_channel);
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static SANE_Status
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shm_channel_reader_get_buffer (Shm_Channel * shm_channel,
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SANE_Int * buffer_id_return,
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SANE_Byte ** buffer_addr_return,
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SANE_Int * buffer_bytes_return);
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static SANE_Status
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shm_channel_reader_put_buffer (Shm_Channel * shm_channel, SANE_Int buffer_id);
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#if 0
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static SANE_Status shm_channel_reader_close (Shm_Channel * shm_channel);
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#endif
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#endif /* not GT68XX_SHM_CHANNEL_H */
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/* vim: set sw=2 cino=>2se-1sn-1s{s^-1st0(0u0 smarttab expandtab: */
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