/* Copyright (C) 2003 MySQL AB 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 */ #ifndef NDB_CONDITION_H #define NDB_CONDITION_H #include "NdbMutex.h" #ifdef __cplusplus extern "C" { #endif struct NdbCondition; /** * Create a condition * * returnvalue: pointer to the condition structure */ struct NdbCondition* NdbCondition_Create(void); /** * Wait for a condition, allows a thread to wait for * a condition and atomically releases the associated mutex. * * p_cond: pointer to the condition structure * p_mutex: pointer to the mutex structure * returnvalue: 0 = succeeded, 1 = failed */ int NdbCondition_Wait(struct NdbCondition* p_cond, NdbMutex* p_mutex); /* * Wait for a condition with timeout, allows a thread to * wait for a condition and atomically releases the associated mutex. * * @param p_cond - pointer to the condition structure * @param p_mutex - pointer to the mutex structure * @param msec - Wait for msec milli seconds the most * @return 0 = succeeded, 1 = failed * @ */ int NdbCondition_WaitTimeout(struct NdbCondition* p_cond, NdbMutex* p_mutex, int msec); /** * Signal a condition * * p_cond: pointer to the condition structure * returnvalue: 0 = succeeded, 1 = failed */ int NdbCondition_Signal(struct NdbCondition* p_cond); /** * Broadcast a condition * * p_cond: pointer to the condition structure * returnvalue: 0 = succeeded, 1 = failed */ int NdbCondition_Broadcast(struct NdbCondition* p_cond); /** * Destroy a condition * * p_cond: pointer to the condition structure * returnvalue: 0 = succeeded, 1 = failed */ int NdbCondition_Destroy(struct NdbCondition* p_cond); #ifdef __cplusplus } #endif #endif