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/* 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; version 2 of the License.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
#ifndef NDB_THREAD_H
#define NDB_THREAD_H
#include <ndb_global.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef enum NDB_THREAD_PRIO_ENUM {
NDB_THREAD_PRIO_HIGHEST,
NDB_THREAD_PRIO_HIGH,
NDB_THREAD_PRIO_MEAN,
NDB_THREAD_PRIO_LOW,
NDB_THREAD_PRIO_LOWEST
} NDB_THREAD_PRIO;
typedef void* (NDB_THREAD_FUNC)(void*);
typedef void* NDB_THREAD_ARG;
typedef size_t NDB_THREAD_STACKSIZE;
struct NdbThread;
/*
Method to block/unblock thread from receiving KILL signal with
signum set in g_ndb_shm_signum in a portable manner.
*/
#ifdef NDB_SHM_TRANSPORTER
void NdbThread_set_shm_sigmask(my_bool block);
#endif
/**
* Create a thread
*
* * p_thread_func: pointer of the function to run in the thread
* * p_thread_arg: pointer to argument to be passed to the thread
* * thread_stack_size: stack size for this thread
* * p_thread_name: pointer to name of this thread
* * returnvalue: pointer to the created thread
*/
struct NdbThread* NdbThread_Create(NDB_THREAD_FUNC *p_thread_func,
NDB_THREAD_ARG *p_thread_arg,
const NDB_THREAD_STACKSIZE thread_stack_size,
const char* p_thread_name,
NDB_THREAD_PRIO thread_prio);
/**
* Destroy a thread
* Deallocates memory for thread
* And NULL the pointer
*
*/
void NdbThread_Destroy(struct NdbThread** p_thread);
/**
* Waitfor a thread, suspend the execution of the calling thread
* until the wait_thread_id completes
*
* * p_wait_thread, pointer to the thread to wait for
* * status: exit code from thread waited for
* * returnvalue: true = succeded, false = failed
*/
int NdbThread_WaitFor(struct NdbThread* p_wait_thread, void** status);
/**
* Exit thread, terminates the calling thread
*
* * status: exit code
*/
void NdbThread_Exit(void *status);
/**
* Set thread concurrency level
*
* *
*/
int NdbThread_SetConcurrencyLevel(int level);
#ifdef __cplusplus
}
#endif
#endif
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