buf0dump.h

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/** @file include/buf0dump.h
 Implements a buffer pool dump/load.
 
 Created April 08, 2011 Vasil Dimov
 *******************************************************/
 
#ifndef buf0dump_h
#define buf0dump_h
 
#include "univ.i"
 
/** Wakes up the buffer pool dump/load thread and instructs it to start
 a dump. This function is called by MySQL code via buffer_pool_dump_now()
 and it should return immediately because the whole MySQL is frozen during
 its execution. */
void buf_dump_start();
 
/** Wakes up the buffer pool dump/load thread and instructs it to start
 a load. This function is called by MySQL code via buffer_pool_load_now()
 and it should return immediately because the whole MySQL is frozen during
 its execution. */
void buf_load_start();
 
/** Aborts a currently running buffer pool load. This function is called by
 MySQL code via buffer_pool_load_abort() and it should return immediately
 because the whole MySQL is frozen during its execution. */
void buf_load_abort();
 
/** This is the main thread for buffer pool dump/load. It waits for an
event and when waked up either performs a dump or load and sleeps
again. */
void buf_dump_thread();
 
/** Generate the path to the buffer pool dump/load file.
@param[out]     path            generated path
@param[in]      path_size       size of 'path', used as in snprintf(3). */
void buf_dump_generate_path(char *path, size_t path_size);
 
#endif /* buf0dump_h */