go-nbdkit/wrappers.h

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2021-09-27 14:14:58 +00:00
/* cgo wrappers.
* Copyright (C) 2013-2020 Red Hat Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
extern void wrapper_load ();
extern void wrapper_unload ();
extern void wrapper_dump_plugin ();
extern int wrapper_config (const char *key, const char *value);
extern int wrapper_config_complete (void);
extern int wrapper_get_ready (void);
extern int wrapper_preconnect (int readonly);
extern void * wrapper_open (int readonly);
extern void wrapper_close (void *handle);
extern int64_t wrapper_get_size (void *handle);
extern int wrapper_can_write (void *handle);
extern int wrapper_can_flush (void *handle);
extern int wrapper_is_rotational (void *handle);
extern int wrapper_can_trim (void *handle);
extern int wrapper_can_zero (void *handle);
extern int wrapper_can_multi_conn (void *handle);
extern int wrapper_pread (void *handle, void *buf,
uint32_t count, uint64_t offset, uint32_t flags);
extern int wrapper_pwrite (void *handle, const void *buf,
uint32_t count, uint64_t offset, uint32_t flags);
extern int wrapper_flush (void *handle, uint32_t flags);
extern int wrapper_trim (void *handle,
uint32_t count, uint64_t offset, uint32_t flags);
extern int wrapper_zero (void *handle,
uint32_t count, uint64_t offset, uint32_t flags);