You've already forked mariadb-columnstore-engine
mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-08-17 09:41:06 +03:00
119 lines
3.5 KiB
C
119 lines
3.5 KiB
C
/*
|
|
* Drizzle Client & Protocol Library
|
|
*
|
|
* Copyright (C) 2008 Eric Day (eday@oddments.org)
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* * The names of its contributors may not be used to endorse or
|
|
* promote products derived from this software without specific prior
|
|
* written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT
|
|
* OWNER 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.
|
|
*
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
/**
|
|
* @file
|
|
* @brief Local Connection Declarations
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* @addtogroup drizzle_con_local Local Connection Declarations
|
|
* @ingroup drizzle_con
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* Clear address info, freeing structs if needed.
|
|
*
|
|
* @param[in] con Connection structure previously initialized with
|
|
* drizzle_con_create(), drizzle_con_clone(), or related functions.
|
|
*/
|
|
DRIZZLE_LOCAL
|
|
void drizzle_con_reset_addrinfo(drizzle_con_st *con);
|
|
|
|
/**
|
|
* Check if state stack is empty.
|
|
*
|
|
* @param[in] con Connection structure previously initialized with
|
|
* drizzle_con_create(), drizzle_con_clone(), or related functions.
|
|
* @return True if empty, false if something is on the stack.
|
|
*/
|
|
static inline bool drizzle_state_none(drizzle_con_st *con)
|
|
{
|
|
return con->state_current == 0;
|
|
}
|
|
|
|
/**
|
|
* Push a function onto the stack.
|
|
*
|
|
* @param[in] con Connection structure previously initialized with
|
|
* drizzle_con_create(), drizzle_con_clone(), or related functions.
|
|
* @param[in] function Function to push.
|
|
*/
|
|
static inline void drizzle_state_push(drizzle_con_st *con,
|
|
drizzle_state_fn *function)
|
|
{
|
|
/* The maximum stack depth can be determined at compile time, so bump this
|
|
constant if needed to avoid the dynamic memory management. */
|
|
assert(con->state_current < DRIZZLE_STATE_STACK_SIZE);
|
|
con->state_stack[con->state_current]= function;
|
|
con->state_current++;
|
|
}
|
|
|
|
/**
|
|
* Pop a function off of the stack.
|
|
*
|
|
* @param[in] con Connection structure previously initialized with
|
|
* drizzle_con_create(), drizzle_con_clone(), or related functions.
|
|
*/
|
|
static inline void drizzle_state_pop(drizzle_con_st *con)
|
|
{
|
|
con->state_current--;
|
|
}
|
|
|
|
/**
|
|
* Reset the stack so it is empty.
|
|
*
|
|
* @param[in] con Connection structure previously initialized with
|
|
* drizzle_con_create(), drizzle_con_clone(), or related functions.
|
|
*/
|
|
static inline void drizzle_state_reset(drizzle_con_st *con)
|
|
{
|
|
con->state_current= 0;
|
|
}
|
|
|
|
/** @} */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|