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Viewing changes to storage/myisam/myisamdef.h

  • Committer: Brian Aker
  • Date: 2009-01-24 09:43:35 UTC
  • Revision ID: brian@gir-3.local-20090124094335-6qdtvc35gl5fvivz
Adding in an example singe thread scheduler

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storage/myisam/myisamdef.h
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/* This file is included by all internal myisam files */
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#ifndef PLUGIN_MYISAM_MYISAM_PRIV_H
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#define PLUGIN_MYISAM_MYISAM_PRIV_H
 
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#ifndef MYISAMDEF_H
 
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#define MYISAMDEF_H
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#include "config.h"
 
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#include <drizzled/global.h>
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#include "myisam.h"                     /* Structs & some defines */
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#include "myisampack.h"                 /* packing of keys */
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#include "drizzled/tree.h"
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#include "drizzled/internal/my_pthread.h"
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#include <drizzled/thr_lock.h>
 
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#include <mysys/my_tree.h>
 
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#include <mysys/my_pthread.h>
 
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#include <mysys/thr_lock.h>
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#include <drizzled/common.h>
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#include <assert.h>
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#include <fcntl.h>
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#include <string.h>
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#include <list>
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#if defined(my_write)
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#undef my_write                         /* undef map from my_nosys; We need test-if-disk full */
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#endif
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#ifdef  __cplusplus
 
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extern "C" {
 
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#endif
 
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typedef struct st_mi_status_info
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{
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  drizzled::ha_rows records;                    /* Rows in table */
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  drizzled::ha_rows del;                                /* Removed rows */
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  drizzled::internal::my_off_t empty;                   /* lost space in datafile */
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  drizzled::internal::my_off_t key_empty;                       /* lost space in indexfile */
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  drizzled::internal::my_off_t key_file_length;
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  drizzled::internal::my_off_t data_file_length;
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  drizzled::internal::ha_checksum checksum;
 
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  ha_rows records;                      /* Rows in table */
 
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  ha_rows del;                          /* Removed rows */
 
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  my_off_t empty;                       /* lost space in datafile */
 
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  my_off_t key_empty;                   /* lost space in indexfile */
 
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  my_off_t key_file_length;
 
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  my_off_t data_file_length;
 
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  ha_checksum checksum;
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} MI_STATUS_INFO;
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typedef struct st_mi_state_info
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  } header;
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  MI_STATUS_INFO state;
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  drizzled::ha_rows split;                      /* number of split blocks */
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  drizzled::internal::my_off_t dellink;                 /* Link to next removed block */
 
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  ha_rows split;                        /* number of split blocks */
 
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  my_off_t dellink;                     /* Link to next removed block */
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  uint64_t auto_increment;
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  ulong process;                        /* process that updated table last */
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  ulong unique;                         /* Unique number for this process */
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  ulong update_count;                   /* Updated for each write lock */
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  ulong status;
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  ulong *rec_per_key_part;
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  drizzled::internal::my_off_t *key_root;                       /* Start of key trees */
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  drizzled::internal::my_off_t *key_del;                        /* delete links for trees */
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  drizzled::internal::my_off_t rec_per_key_rows;                /* Rows when calculating rec_per_key */
 
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  my_off_t *key_root;                   /* Start of key trees */
 
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  my_off_t *key_del;                    /* delete links for trees */
 
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  my_off_t rec_per_key_rows;            /* Rows when calculating rec_per_key */
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  ulong sec_index_changed;              /* Updated when new sec_index */
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  ulong sec_index_used;                 /* which extra index are in use */
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  uint64_t key_map;                     /* Which keys are in use */
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  drizzled::internal::ha_checksum checksum;                 /* Table checksum */
 
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  ha_checksum checksum;                 /* Table checksum */
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  ulong version;                        /* timestamp of create */
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  time_t create_time;                   /* Time when created database */
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  time_t recover_time;                  /* Time for last recover */
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typedef struct st_mi_base_info
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{
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  drizzled::internal::my_off_t keystart;                        /* Start of keys */
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  drizzled::internal::my_off_t max_data_file_length;
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  drizzled::internal::my_off_t max_key_file_length;
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  drizzled::internal::my_off_t margin_key_file_length;
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  drizzled::ha_rows records,reloc;              /* Create information */
 
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  my_off_t keystart;                    /* Start of keys */
 
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  my_off_t max_data_file_length;
 
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  my_off_t max_key_file_length;
 
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  my_off_t margin_key_file_length;
 
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  ha_rows records,reloc;                /* Create information */
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  ulong mean_row_length;                /* Create information */
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  ulong reclength;                      /* length of unpacked record */
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  ulong pack_reclength;                 /* Length of full packed rec. */
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#define MAX_NONMAPPED_INSERTS 1000
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namespace drizzled { class Session; }
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typedef struct st_mi_isam_share {       /* Shared between opens */
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  MI_STATE_INFO state;
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  MI_BASE_INFO base;
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  MI_KEYDEF  *keyinfo;                  /* Key definitions */
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  MI_UNIQUEDEF *uniqueinfo;             /* unique definitions */
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  HA_KEYSEG *keyparts;                  /* key part info */
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  drizzled::MI_COLUMNDEF *rec;                  /* Pointer to field information */
 
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  MI_COLUMNDEF *rec;                    /* Pointer to field information */
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  MI_PACK    pack;                      /* Data about packed records */
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  MI_BLOB    *blobs;                    /* Pointer to blobs */
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  std::list<drizzled::Session *> *in_use;         /* List of threads using this table */
 
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  LIST *in_use;                         /* List of threads using this table */
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  char  *unique_file_name;              /* realpath() of index file */
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  char  *data_file_name,                /* Resolved path names from symlinks */
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        *index_file_name;
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  unsigned char *file_map;                      /* mem-map of file if possible */
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  drizzled::KEY_CACHE *key_cache;                       /* ref to the current key cache */
 
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  KEY_CACHE *key_cache;                 /* ref to the current key cache */
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  MI_DECODE_TREE *decode_trees;
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  uint16_t *decode_tables;
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  int (*read_record)(struct st_myisam_info*, drizzled::internal::my_off_t, unsigned char*);
 
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  int (*read_record)(struct st_myisam_info*, my_off_t, unsigned char*);
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  int (*write_record)(struct st_myisam_info*, const unsigned char*);
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  int (*update_record)(struct st_myisam_info*, drizzled::internal::my_off_t, const unsigned char*);
 
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  int (*update_record)(struct st_myisam_info*, my_off_t, const unsigned char*);
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  int (*delete_record)(struct st_myisam_info*);
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  int (*read_rnd)(struct st_myisam_info*, unsigned char*, drizzled::internal::my_off_t, bool);
 
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  int (*read_rnd)(struct st_myisam_info*, unsigned char*, my_off_t, bool);
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  int (*compare_record)(struct st_myisam_info*, const unsigned char *);
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  /* Function to use for a row checksum. */
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  drizzled::internal::ha_checksum (*calc_checksum)(struct st_myisam_info*, const unsigned char *);
 
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  ha_checksum (*calc_checksum)(struct st_myisam_info*, const unsigned char *);
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  int (*compare_unique)(struct st_myisam_info*, MI_UNIQUEDEF *,
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                        const unsigned char *record, drizzled::internal::my_off_t pos);
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  size_t (*file_read)(MI_INFO *, unsigned char *, size_t, drizzled::internal::my_off_t, drizzled::myf);
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  size_t (*file_write)(MI_INFO *, const unsigned char *, size_t, drizzled::internal::my_off_t, drizzled::myf);
 
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                        const unsigned char *record, my_off_t pos);
 
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  size_t (*file_read)(MI_INFO *, unsigned char *, size_t, my_off_t, myf);
 
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  size_t (*file_write)(MI_INFO *, const unsigned char *, size_t, my_off_t, myf);
 
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  invalidator_by_filename invalidator;  /* query cache invalidator */
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  ulong this_process;                   /* processid */
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  ulong last_process;                   /* For table-change-check */
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  ulong last_version;                   /* Version on start */
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  ulong state_diff_length;
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  uint  rec_reflength;                  /* rec_reflength in use now */
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  uint32_t  unique_name_length;
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  int   kfile;                          /* Shared keyfile */
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  int   data_file;                      /* Shared data file */
 
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  File  kfile;                          /* Shared keyfile */
 
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  File  data_file;                      /* Shared data file */
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  int   mode;                           /* mode of file on open */
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  uint  reopen;                         /* How many times reopened */
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  uint  w_locks,r_locks,tot_locks;      /* Number of read/write locks */
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  uint  blocksize;                      /* blocksize of keyfile */
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  drizzled::myf write_flag;
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  enum drizzled::data_file_type data_file_type;
 
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  myf write_flag;
 
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  enum data_file_type data_file_type;
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  /* Below flag is needed to make log tables work with concurrent insert */
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  bool is_log_table;
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    not_flushed,
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    temporary,delay_key_write,
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    concurrent_insert;
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  drizzled::THR_LOCK lock;
 
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  THR_LOCK lock;
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  pthread_mutex_t intern_lock;          /* Locking for use with _locking */
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  pthread_rwlock_t *key_root_lock;
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  drizzled::internal::my_off_t mmaped_length;
 
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  my_off_t mmaped_length;
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  uint32_t     nonmmaped_inserts;           /* counter of writing in non-mmaped
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                                           area */
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  pthread_rwlock_t mmap_lock;
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  MI_BLOB     *blobs;                   /* Pointer to blobs */
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  MI_BIT_BUFF  bit_buff;
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  /* accumulate indexfile changes between write's */
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  drizzled::TREE                *bulk_insert;
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  drizzled::Session *in_use;                      /* Thread using this table          */
 
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  TREE          *bulk_insert;
 
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  LIST in_use;                          /* Thread using this table          */
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  char *filename;                       /* parameter to open filename       */
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  unsigned char *buff,                          /* Temp area for key                */
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        *lastkey,*lastkey2;             /* Last used search key             */
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        *int_maxpos;                    /*  -""-  */
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  uint32_t  int_nod_flag;                       /*  -""-  */
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  uint32_t int_keytree_version;         /*  -""-  */
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  int (*read_record)(struct st_myisam_info*, drizzled::internal::my_off_t, unsigned char*);
 
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  int (*read_record)(struct st_myisam_info*, my_off_t, unsigned char*);
 
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  invalidator_by_filename invalidator;  /* query cache invalidator */
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  ulong this_unique;                    /* uniq filenumber or thread */
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  ulong last_unique;                    /* last unique number */
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  ulong this_loop;                      /* counter for this open */
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  ulong last_loop;                      /* last used counter */
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  drizzled::internal::my_off_t lastpos,                 /* Last record position */
 
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  my_off_t lastpos,                     /* Last record position */
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        nextpos;                        /* Position to next record */
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  drizzled::internal::my_off_t save_lastpos;
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  drizzled::internal::my_off_t pos;                             /* Intern variable */
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  drizzled::internal::my_off_t last_keypage;            /* Last key page read */
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  drizzled::internal::my_off_t last_search_keypage;             /* Last keypage when searching */
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  drizzled::internal::my_off_t dupp_key_pos;
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  drizzled::internal::ha_checksum checksum;                 /* Temp storage for row checksum */
 
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  my_off_t save_lastpos;
 
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  my_off_t pos;                         /* Intern variable */
 
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  my_off_t last_keypage;                /* Last key page read */
 
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  my_off_t last_search_keypage;         /* Last keypage when searching */
 
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  my_off_t dupp_key_pos;
 
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  ha_checksum checksum;                 /* Temp storage for row checksum */
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  /* QQ: the folloing two xxx_length fields should be removed,
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     as they are not compatible with parallel repair */
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  ulong packed_length,blob_length;      /* Length of found, packed record */
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  int   lastinx;                        /* Last used index */
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  uint  lastkey_length;                 /* Length of key in lastkey */
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  uint  last_rkey_length;               /* Last length in mi_rkey() */
281
 
  enum drizzled::ha_rkey_function last_key_func;  /* CONTAIN, OVERLAP, etc */
 
282
  enum ha_rkey_function last_key_func;  /* CONTAIN, OVERLAP, etc */
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  uint32_t  save_lastkey_length;
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  uint32_t  pack_key_length;                /* For MYISAMMRG */
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  uint16_t last_used_keyseg;              /* For MyISAMMRG */
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  uint  data_changed;                   /* Somebody has changed data */
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  uint  save_update;                    /* When using KEY_READ */
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  int   save_lastinx;
291
 
  drizzled::internal::IO_CACHE rec_cache;                       /* When cacheing records */
 
292
  LIST  open_list;
 
293
  IO_CACHE rec_cache;                   /* When cacheing records */
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  uint32_t  preload_buff_size;              /* When preloading indexes */
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  drizzled::myf lock_wait;                      /* is 0 or MY_DONT_WAIT */
 
295
  myf lock_wait;                        /* is 0 or MY_DONT_WAIT */
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  bool was_locked;                      /* Was locked in panic */
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  bool append_insert_at_end;            /* Set if concurrent insert */
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  bool quick_mode;
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  index_cond_func_t index_cond_func;   /* Index condition function */
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  void *index_cond_func_arg;           /* parameter for the func */
303
 
  drizzled::THR_LOCK_DATA lock;
 
305
  THR_LOCK_DATA lock;
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  unsigned char  *rtree_recursion_state;        /* For RTREE */
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  int     rtree_recursion_depth;
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};
307
309
 
308
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typedef struct st_buffpek {
309
 
  off_t file_pos;                    /* Where we are in the sort file */
 
311
  my_off_t file_pos;                    /* Where we are in the sort file */
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  unsigned char *base,*key;                     /* Key pointers */
311
 
  drizzled::ha_rows count;                        /* Number of rows in table */
 
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  ha_rows count;                        /* Number of rows in table */
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  ulong mem_count;                      /* numbers of keys in memory */
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  ulong max_keys;                       /* Max keys in buffert */
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} BUFFPEK;
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typedef struct st_mi_sort_param
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{
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  pthread_t  thr;
319
 
  drizzled::internal::IO_CACHE read_cache, tempfile, tempfile_for_exceptions;
320
 
  drizzled::DYNAMIC_ARRAY buffpek;
 
321
  IO_CACHE read_cache, tempfile, tempfile_for_exceptions;
 
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  DYNAMIC_ARRAY buffpek;
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  MI_BIT_BUFF   bit_buff;               /* For parallel repair of packrec. */
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324
 
323
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  /*
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  uint64_t unique[MI_MAX_KEY_SEG+1];
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  uint64_t notnull[MI_MAX_KEY_SEG+1];
329
331
 
330
 
  drizzled::internal::my_off_t pos,max_pos,filepos,start_recpos;
 
332
  my_off_t pos,max_pos,filepos,start_recpos;
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  uint32_t key, key_length,real_key_length,sortbuff_size;
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  uint32_t maxbuffers, keys, find_length, sort_keys_length;
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  bool fix_datafile, master;
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  unsigned char **sort_keys;
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  unsigned char *rec_buff;
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  void *wordlist, *wordptr;
341
 
  drizzled::memory::Root wordroot;
 
343
  MEM_ROOT wordroot;
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  unsigned char *record;
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  int (*key_cmp)(struct st_mi_sort_param *, const void *, const void *);
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  int (*key_read)(struct st_mi_sort_param *,void *);
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  int (*key_write)(struct st_mi_sort_param *, const void *);
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  void (*lock_in_memory)(MI_CHECK *);
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  int (*write_keys)(struct st_mi_sort_param *, register unsigned char **,
348
 
                     uint32_t , struct st_buffpek *, drizzled::internal::IO_CACHE *);
349
 
  unsigned int (*read_to_buffer)(drizzled::internal::IO_CACHE *,struct st_buffpek *, uint);
350
 
  int (*write_key)(struct st_mi_sort_param *, drizzled::internal::IO_CACHE *,unsigned char *,
 
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                     uint32_t , struct st_buffpek *, IO_CACHE *);
 
351
  unsigned int (*read_to_buffer)(IO_CACHE *,struct st_buffpek *, uint);
 
352
  int (*write_key)(struct st_mi_sort_param *, IO_CACHE *,unsigned char *,
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                       uint, uint);
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} MI_SORT_PARAM;
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        /* Some extern variables */
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466
 
extern std::list<MI_INFO *> myisam_open_list;
 
468
extern LIST *myisam_open_list;
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extern unsigned char  myisam_file_magic[], myisam_pack_file_magic[];
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470
extern uint32_t  myisam_read_vec[], myisam_readnext_vec[];
469
471
extern uint32_t myisam_quick_table_bits;
484
486
 
485
487
        /* Prototypes for intern functions */
486
488
 
487
 
extern int _mi_read_dynamic_record(MI_INFO *info,drizzled::internal::my_off_t filepos,unsigned char *buf);
 
489
extern int _mi_read_dynamic_record(MI_INFO *info,my_off_t filepos,unsigned char *buf);
488
490
extern int _mi_write_dynamic_record(MI_INFO*, const unsigned char*);
489
 
extern int _mi_update_dynamic_record(MI_INFO*, drizzled::internal::my_off_t, const unsigned char*);
 
491
extern int _mi_update_dynamic_record(MI_INFO*, my_off_t, const unsigned char*);
490
492
extern int _mi_delete_dynamic_record(MI_INFO *info);
491
493
extern int _mi_cmp_dynamic_record(MI_INFO *info,const unsigned char *record);
492
 
extern int _mi_read_rnd_dynamic_record(MI_INFO *, unsigned char *,drizzled::internal::my_off_t, bool);
 
494
extern int _mi_read_rnd_dynamic_record(MI_INFO *, unsigned char *,my_off_t, bool);
493
495
extern int _mi_write_blob_record(MI_INFO*, const unsigned char*);
494
 
extern int _mi_update_blob_record(MI_INFO*, drizzled::internal::my_off_t, const unsigned char*);
495
 
extern int _mi_read_static_record(MI_INFO *info, drizzled::internal::my_off_t filepos,unsigned char *buf);
 
496
extern int _mi_update_blob_record(MI_INFO*, my_off_t, const unsigned char*);
 
497
extern int _mi_read_static_record(MI_INFO *info, my_off_t filepos,unsigned char *buf);
496
498
extern int _mi_write_static_record(MI_INFO*, const unsigned char*);
497
 
extern int _mi_update_static_record(MI_INFO*, drizzled::internal::my_off_t, const unsigned char*);
 
499
extern int _mi_update_static_record(MI_INFO*, my_off_t, const unsigned char*);
498
500
extern int _mi_delete_static_record(MI_INFO *info);
499
501
extern int _mi_cmp_static_record(MI_INFO *info,const unsigned char *record);
500
 
extern int _mi_read_rnd_static_record(MI_INFO*, unsigned char *,drizzled::internal::my_off_t, bool);
 
502
extern int _mi_read_rnd_static_record(MI_INFO*, unsigned char *,my_off_t, bool);
501
503
extern int _mi_ck_write(MI_INFO *info,uint32_t keynr,unsigned char *key,uint32_t length);
502
504
extern int _mi_ck_real_write_btree(MI_INFO *info, MI_KEYDEF *keyinfo,
503
505
                                   unsigned char *key, uint32_t key_length,
504
 
                                   drizzled::internal::my_off_t *root, uint32_t comp_flag);
505
 
extern int _mi_enlarge_root(MI_INFO *info,MI_KEYDEF *keyinfo,unsigned char *key, drizzled::internal::my_off_t *root);
 
506
                                   my_off_t *root, uint32_t comp_flag);
 
507
extern int _mi_enlarge_root(MI_INFO *info,MI_KEYDEF *keyinfo,unsigned char *key, my_off_t *root);
506
508
extern int _mi_insert(MI_INFO *info,MI_KEYDEF *keyinfo,unsigned char *key,
507
509
                      unsigned char *anc_buff,unsigned char *key_pos,unsigned char *key_buff,
508
510
                      unsigned char *father_buff, unsigned char *father_keypos,
509
 
                      drizzled::internal::my_off_t father_page, bool insert_last);
 
511
                      my_off_t father_page, bool insert_last);
510
512
extern int _mi_split_page(MI_INFO *info,MI_KEYDEF *keyinfo,unsigned char *key,
511
513
                          unsigned char *buff,unsigned char *key_buff, bool insert_last);
512
514
extern unsigned char *_mi_find_half_pos(uint32_t nod_flag,MI_KEYDEF *keyinfo,unsigned char *page,
547
549
extern int _mi_decrement_open_count(MI_INFO *info);
548
550
extern int _mi_check_index(MI_INFO *info,int inx);
549
551
extern int _mi_search(MI_INFO *info,MI_KEYDEF *keyinfo,unsigned char *key,uint32_t key_len,
550
 
                      uint32_t nextflag,drizzled::internal::my_off_t pos);
 
552
                      uint32_t nextflag,my_off_t pos);
551
553
extern int _mi_bin_search(struct st_myisam_info *info,MI_KEYDEF *keyinfo,
552
554
                          unsigned char *page,unsigned char *key,uint32_t key_len,uint32_t comp_flag,
553
555
                          unsigned char * *ret_pos,unsigned char *buff, bool *was_last_key);
557
559
extern int _mi_prefix_search(MI_INFO *info,MI_KEYDEF *keyinfo,unsigned char *page,
558
560
                          unsigned char *key,uint32_t key_len,uint32_t comp_flag,
559
561
                          unsigned char **ret_pos,unsigned char *buff, bool *was_last_key);
560
 
extern drizzled::internal::my_off_t _mi_kpos(uint32_t nod_flag,unsigned char *after_key);
561
 
extern void _mi_kpointer(MI_INFO *info,unsigned char *buff,drizzled::internal::my_off_t pos);
562
 
extern drizzled::internal::my_off_t _mi_dpos(MI_INFO *info, uint32_t nod_flag,unsigned char *after_key);
563
 
extern drizzled::internal::my_off_t _mi_rec_pos(MYISAM_SHARE *info, unsigned char *ptr);
564
 
void _mi_dpointer(MI_INFO *info, unsigned char *buff,drizzled::internal::my_off_t pos);
 
562
extern my_off_t _mi_kpos(uint32_t nod_flag,unsigned char *after_key);
 
563
extern void _mi_kpointer(MI_INFO *info,unsigned char *buff,my_off_t pos);
 
564
extern my_off_t _mi_dpos(MI_INFO *info, uint32_t nod_flag,unsigned char *after_key);
 
565
extern my_off_t _mi_rec_pos(MYISAM_SHARE *info, unsigned char *ptr);
 
566
void _mi_dpointer(MI_INFO *info, unsigned char *buff,my_off_t pos);
565
567
extern uint32_t _mi_get_static_key(MI_KEYDEF *keyinfo,uint32_t nod_flag,unsigned char * *page,
566
568
                               unsigned char *key);
567
569
extern uint32_t _mi_get_pack_key(MI_KEYDEF *keyinfo,uint32_t nod_flag,unsigned char * *page,
578
580
                               HA_KEYSEG *end);
579
581
extern unsigned char *_mi_move_key(MI_KEYDEF *keyinfo,unsigned char *to,unsigned char *from);
580
582
extern int _mi_search_next(MI_INFO *info,MI_KEYDEF *keyinfo,unsigned char *key,
581
 
                           uint32_t key_length,uint32_t nextflag,drizzled::internal::my_off_t pos);
582
 
extern int _mi_search_first(MI_INFO *info,MI_KEYDEF *keyinfo,drizzled::internal::my_off_t pos);
583
 
extern int _mi_search_last(MI_INFO *info,MI_KEYDEF *keyinfo,drizzled::internal::my_off_t pos);
584
 
extern unsigned char *_mi_fetch_keypage(MI_INFO *info,MI_KEYDEF *keyinfo,drizzled::internal::my_off_t page,
 
583
                           uint32_t key_length,uint32_t nextflag,my_off_t pos);
 
584
extern int _mi_search_first(MI_INFO *info,MI_KEYDEF *keyinfo,my_off_t pos);
 
585
extern int _mi_search_last(MI_INFO *info,MI_KEYDEF *keyinfo,my_off_t pos);
 
586
extern unsigned char *_mi_fetch_keypage(MI_INFO *info,MI_KEYDEF *keyinfo,my_off_t page,
585
587
                                int level,unsigned char *buff,int return_buffer);
586
 
extern int _mi_write_keypage(MI_INFO *info,MI_KEYDEF *keyinfo,drizzled::internal::my_off_t page,
 
588
extern int _mi_write_keypage(MI_INFO *info,MI_KEYDEF *keyinfo,my_off_t page,
587
589
                             int level, unsigned char *buff);
588
 
extern int _mi_dispose(MI_INFO *info,MI_KEYDEF *keyinfo,drizzled::internal::my_off_t pos,
 
590
extern int _mi_dispose(MI_INFO *info,MI_KEYDEF *keyinfo,my_off_t pos,
589
591
                      int level);
590
 
extern drizzled::internal::my_off_t _mi_new(MI_INFO *info,MI_KEYDEF *keyinfo,int level);
 
592
extern my_off_t _mi_new(MI_INFO *info,MI_KEYDEF *keyinfo,int level);
591
593
extern uint32_t _mi_make_key(MI_INFO *info,uint32_t keynr,unsigned char *key,
592
 
                         const unsigned char *record,drizzled::internal::my_off_t filepos);
 
594
                         const unsigned char *record,my_off_t filepos);
593
595
extern uint32_t _mi_pack_key(register MI_INFO *info, uint32_t keynr, unsigned char *key,
594
 
                         unsigned char *old, drizzled::key_part_map keypart_map,
 
596
                         unsigned char *old, key_part_map keypart_map,
595
597
                         HA_KEYSEG **last_used_keyseg);
596
 
extern int _mi_read_key_record(MI_INFO *info,drizzled::internal::my_off_t filepos,unsigned char *buf);
597
 
extern int _mi_read_cache(drizzled::internal::IO_CACHE *info,unsigned char *buff,drizzled::internal::my_off_t pos,
 
598
extern int _mi_read_key_record(MI_INFO *info,my_off_t filepos,unsigned char *buf);
 
599
extern int _mi_read_cache(IO_CACHE *info,unsigned char *buff,my_off_t pos,
598
600
                          uint32_t length,int re_read_if_possibly);
599
601
extern uint64_t retrieve_auto_increment(MI_INFO *info,const unsigned char *record);
600
602
 
609
611
                            ulong reclength);
610
612
extern bool _mi_rec_check(MI_INFO *info,const unsigned char *record, unsigned char *packpos,
611
613
                             ulong packed_length, bool with_checkum);
612
 
extern int _mi_write_part_record(MI_INFO *info,drizzled::internal::my_off_t filepos,ulong length,
613
 
                                 drizzled::internal::my_off_t next_filepos,unsigned char **record,
 
614
extern int _mi_write_part_record(MI_INFO *info,my_off_t filepos,ulong length,
 
615
                                 my_off_t next_filepos,unsigned char **record,
614
616
                                 ulong *reclength,int *flag);
615
617
extern void _mi_print_key(FILE *stream,HA_KEYSEG *keyseg,const unsigned char *key,
616
618
                          uint32_t length);
617
619
extern bool _mi_read_pack_info(MI_INFO *info,bool fix_keys);
618
 
extern int _mi_read_pack_record(MI_INFO *info,drizzled::internal::my_off_t filepos,unsigned char *buf);
619
 
extern int _mi_read_rnd_pack_record(MI_INFO*, unsigned char *,drizzled::internal::my_off_t, bool);
 
620
extern int _mi_read_pack_record(MI_INFO *info,my_off_t filepos,unsigned char *buf);
 
621
extern int _mi_read_rnd_pack_record(MI_INFO*, unsigned char *,my_off_t, bool);
620
622
extern int _mi_pack_rec_unpack(MI_INFO *info, MI_BIT_BUFF *bit_buff,
621
623
                               unsigned char *to, unsigned char *from, ulong reclength);
 
624
extern uint64_t mi_safe_mul(uint64_t a,uint64_t b);
622
625
 
623
626
struct st_sort_info;
624
627
 
629
632
  ulong data_len;
630
633
  ulong block_len;
631
634
  ulong blob_len;
632
 
  drizzled::internal::my_off_t filepos;
633
 
  drizzled::internal::my_off_t next_filepos;
634
 
  drizzled::internal::my_off_t prev_filepos;
 
635
  my_off_t filepos;
 
636
  my_off_t next_filepos;
 
637
  my_off_t prev_filepos;
635
638
  uint32_t second_read;
636
639
  uint32_t offset;
637
640
} MI_BLOCK_INFO;
648
651
#define NEED_MEM        ((uint) 10*4*(IO_SIZE+32)+32) /* Nead for recursion */
649
652
#define MAXERR                  20
650
653
#define BUFFERS_WHEN_SORTING    16              /* Alloc for sort-key-tree */
651
 
#define WRITE_COUNT             1000
 
654
#define WRITE_COUNT             MY_HOW_OFTEN_TO_WRITE
652
655
#define INDEX_TMP_EXT           ".TMM"
653
656
#define DATA_TMP_EXT            ".TMD"
654
657
 
666
669
#define fast_mi_writeinfo(INFO) if (!(INFO)->s->tot_locks) (void) _mi_writeinfo((INFO),0)
667
670
#define fast_mi_readinfo(INFO) ((INFO)->lock_type == F_UNLCK) && _mi_readinfo((INFO),F_RDLCK,1)
668
671
 
669
 
extern uint32_t _mi_get_block_info(MI_BLOCK_INFO *,int, drizzled::internal::my_off_t);
 
672
extern uint32_t _mi_get_block_info(MI_BLOCK_INFO *,File, my_off_t);
670
673
extern uint32_t _mi_rec_pack(MI_INFO *info,unsigned char *to,const unsigned char *from);
671
674
extern uint32_t _mi_pack_get_block_info(MI_INFO *myisam, MI_BIT_BUFF *bit_buff,
672
675
                                    MI_BLOCK_INFO *info, unsigned char **rec_buff_p,
673
 
                                    int file, drizzled::internal::my_off_t filepos);
 
676
                                    File file, my_off_t filepos);
674
677
extern void _my_store_blob_length(unsigned char *pos,uint32_t pack_length,uint32_t length);
675
678
extern void mi_report_error(int errcode, const char *file_name);
676
679
extern size_t mi_mmap_pread(MI_INFO *info, unsigned char *Buffer,
677
 
                            size_t Count, drizzled::internal::my_off_t offset, drizzled::myf MyFlags);
 
680
                            size_t Count, my_off_t offset, myf MyFlags);
678
681
extern size_t mi_mmap_pwrite(MI_INFO *info, const unsigned char *Buffer,
679
 
                             size_t Count, drizzled::internal::my_off_t offset, drizzled::myf MyFlags);
 
682
                             size_t Count, my_off_t offset, myf MyFlags);
680
683
extern size_t mi_nommap_pread(MI_INFO *info, unsigned char *Buffer,
681
 
                              size_t Count, drizzled::internal::my_off_t offset, drizzled::myf MyFlags);
 
684
                              size_t Count, my_off_t offset, myf MyFlags);
682
685
extern size_t mi_nommap_pwrite(MI_INFO *info, const unsigned char *Buffer,
683
 
                               size_t Count, drizzled::internal::my_off_t offset, drizzled::myf MyFlags);
 
686
                               size_t Count, my_off_t offset, myf MyFlags);
684
687
 
685
 
uint32_t mi_state_info_write(int file, MI_STATE_INFO *state, uint32_t pWrite);
686
 
uint32_t mi_state_info_read_dsk(int file, MI_STATE_INFO *state, bool pRead);
687
 
uint32_t mi_base_info_write(int file, MI_BASE_INFO *base);
688
 
int mi_keyseg_write(int file, const HA_KEYSEG *keyseg);
689
 
uint32_t mi_keydef_write(int file, MI_KEYDEF *keydef);
690
 
uint32_t mi_uniquedef_write(int file, MI_UNIQUEDEF *keydef);
691
 
uint32_t mi_recinfo_write(int file, drizzled::MI_COLUMNDEF *recinfo);
 
688
uint32_t mi_state_info_write(File file, MI_STATE_INFO *state, uint32_t pWrite);
 
689
unsigned char *mi_state_info_read(unsigned char *ptr, MI_STATE_INFO *state);
 
690
uint32_t mi_state_info_read_dsk(File file, MI_STATE_INFO *state, bool pRead);
 
691
uint32_t mi_base_info_write(File file, MI_BASE_INFO *base);
 
692
unsigned char *my_n_base_info_read(unsigned char *ptr, MI_BASE_INFO *base);
 
693
int mi_keyseg_write(File file, const HA_KEYSEG *keyseg);
 
694
unsigned char *mi_keyseg_read(unsigned char *ptr, HA_KEYSEG *keyseg);
 
695
uint32_t mi_keydef_write(File file, MI_KEYDEF *keydef);
 
696
unsigned char *mi_keydef_read(unsigned char *ptr, MI_KEYDEF *keydef);
 
697
uint32_t mi_uniquedef_write(File file, MI_UNIQUEDEF *keydef);
 
698
unsigned char *mi_uniquedef_read(unsigned char *ptr, MI_UNIQUEDEF *keydef);
 
699
uint32_t mi_recinfo_write(File file, MI_COLUMNDEF *recinfo);
 
700
unsigned char *mi_recinfo_read(unsigned char *ptr, MI_COLUMNDEF *recinfo);
692
701
extern int mi_disable_indexes(MI_INFO *info);
693
702
extern int mi_enable_indexes(MI_INFO *info);
694
703
extern int mi_indexes_are_disabled(MI_INFO *info);
695
704
ulong _my_calc_total_blob_length(MI_INFO *info, const unsigned char *record);
696
 
drizzled::internal::ha_checksum mi_checksum(MI_INFO *info, const unsigned char *buf);
697
 
drizzled::internal::ha_checksum mi_static_checksum(MI_INFO *info, const unsigned char *buf);
 
705
ha_checksum mi_checksum(MI_INFO *info, const unsigned char *buf);
 
706
ha_checksum mi_static_checksum(MI_INFO *info, const unsigned char *buf);
698
707
bool mi_check_unique(MI_INFO *info, MI_UNIQUEDEF *def, unsigned char *record,
699
 
                     drizzled::internal::ha_checksum unique_hash, drizzled::internal::my_off_t pos);
700
 
drizzled::internal::ha_checksum mi_unique_hash(MI_UNIQUEDEF *def, const unsigned char *buf);
 
708
                     ha_checksum unique_hash, my_off_t pos);
 
709
ha_checksum mi_unique_hash(MI_UNIQUEDEF *def, const unsigned char *buf);
701
710
int _mi_cmp_static_unique(MI_INFO *info, MI_UNIQUEDEF *def,
702
 
                           const unsigned char *record, drizzled::internal::my_off_t pos);
 
711
                           const unsigned char *record, my_off_t pos);
703
712
int _mi_cmp_dynamic_unique(MI_INFO *info, MI_UNIQUEDEF *def,
704
 
                           const unsigned char *record, drizzled::internal::my_off_t pos);
 
713
                           const unsigned char *record, my_off_t pos);
705
714
int mi_unique_comp(MI_UNIQUEDEF *def, const unsigned char *a, const unsigned char *b,
706
715
                   bool null_are_equal);
707
716
void mi_get_status(void* param, int concurrent_insert);
712
721
 
713
722
extern MI_INFO *test_if_reopen(char *filename);
714
723
bool check_table_is_closed(const char *name, const char *where);
715
 
int mi_open_datafile(MI_INFO *info, MYISAM_SHARE *share, int file_to_dup);
 
724
int mi_open_datafile(MI_INFO *info, MYISAM_SHARE *share, File file_to_dup);
716
725
int mi_open_keyfile(MYISAM_SHARE *share);
717
726
void mi_setup_functions(register MYISAM_SHARE *share);
718
 
bool mi_dynmap_file(MI_INFO *info, drizzled::internal::my_off_t size);
719
 
void mi_remap_file(MI_INFO *info, drizzled::internal::my_off_t size);
 
727
bool mi_dynmap_file(MI_INFO *info, my_off_t size);
 
728
void mi_remap_file(MI_INFO *info, my_off_t size);
720
729
 
721
730
int mi_check_index_cond(register MI_INFO *info, uint32_t keynr, unsigned char *record);
722
731
 
727
736
void mi_check_print_info(MI_CHECK *param, const char *fmt,...);
728
737
int flush_pending_blocks(MI_SORT_PARAM *param);
729
738
int thr_write_keys(MI_SORT_PARAM *sort_param);
730
 
/* needs extern "C" because we pass it to pthread_create */
731
 
extern "C" pthread_handler_t thr_find_all_keys(void *arg);
732
 
int flush_blocks(MI_CHECK *param, drizzled::KEY_CACHE *key_cache, int file);
 
739
pthread_handler_t thr_find_all_keys(void *arg);
 
740
int flush_blocks(MI_CHECK *param, KEY_CACHE *key_cache, File file);
733
741
 
734
742
int sort_write_record(MI_SORT_PARAM *sort_param);
735
743
int _create_index_by_sort(MI_SORT_PARAM *info,bool no_messages, size_t);
737
745
extern void mi_set_index_cond_func(MI_INFO *info, index_cond_func_t func,
738
746
                                   void *func_arg);
739
747
/* Just for myisam legacy */
740
 
extern size_t my_pwrite(int Filedes,const unsigned char *Buffer,size_t Count,
741
 
                        drizzled::internal::my_off_t offset,drizzled::myf MyFlags);
742
 
extern size_t my_pread(int Filedes,unsigned char *Buffer,size_t Count,drizzled::internal::my_off_t offset,
743
 
                       drizzled::myf MyFlags);
 
748
extern size_t my_pwrite(File Filedes,const unsigned char *Buffer,size_t Count,
 
749
                      my_off_t offset,myf MyFlags);
 
750
extern size_t my_pread(File Filedes,unsigned char *Buffer,size_t Count,my_off_t offset,
 
751
                     myf MyFlags);
744
752
 
745
753
/* Needed for handler */
746
 
void mi_disable_non_unique_index(MI_INFO *info, drizzled::ha_rows rows);
747
 
void _mi_report_crashed(MI_INFO *file, const char *message, const char *sfile,
748
 
                        uint32_t sline);
749
 
 
750
 
#endif /* PLUGIN_MYISAM_MYISAM_PRIV_H */
 
754
void mi_disable_non_unique_index(MI_INFO *info, ha_rows rows);
 
755
void _mi_report_crashed(MI_INFO *file __attribute__((unused)),
 
756
                        const char *message __attribute__((unused)),
 
757
                        const char *sfile __attribute__((unused)),
 
758
                        uint32_t sline __attribute__((unused)));
 
759
 
 
760
#ifdef __cplusplus
 
761
}
 
762
#endif
 
763
 
 
764
 
 
765
#endif /* MYISAMDEF_H */