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Diffstat (limited to 'storage/ndb/include/portlib/NdbCondition.h')
-rw-r--r-- | storage/ndb/include/portlib/NdbCondition.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/storage/ndb/include/portlib/NdbCondition.h b/storage/ndb/include/portlib/NdbCondition.h new file mode 100644 index 00000000000..3d959a0db41 --- /dev/null +++ b/storage/ndb/include/portlib/NdbCondition.h @@ -0,0 +1,94 @@ +/* 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 + + |