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Viewing changes to storage/myisam/mi_locking.c

  • Committer: Brian Aker
  • Date: 2009-02-05 10:38:55 UTC
  • Revision ID: brian@tangent.org-20090205103855-wajzccrbu7zbvmh4
Reworked some classes out of session.h
Also updated ignore file.

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storage/myisam/mi_locking.c
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#include <mystrings/m_ctype.h>
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#include <mysys/my_tree.h>
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#include <mysys/queues.h>
 
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#include <drizzled/util/test.h>
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        /* lock table by F_UNLCK, F_RDLCK or F_WRLCK */
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        (info->s->nonmmaped_inserts > MAX_NONMAPPED_INSERTS))
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    {
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      if (info->s->concurrent_insert)
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        rw_wrlock(&info->s->mmap_lock);
 
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        pthread_rwlock_wrlock(&info->s->mmap_lock);
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      mi_remap_file(info, info->s->state.state.data_file_length);
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      info->s->nonmmaped_inserts= 0;
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      if (info->s->concurrent_insert)
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        rw_unlock(&info->s->mmap_lock);
 
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        pthread_rwlock_unlock(&info->s->mmap_lock);
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    }
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#endif
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          share->state.process= share->last_process=share->this_process;
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        }
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      }
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      _mi_test_if_changed(info);
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      info->lock_type=lock_type;
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      info->invalidator=info->s->invalidator;
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      share->w_locks++;
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    /*
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       Check for bad file descriptors if this table is part
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       of a merge union. Failing to capture this may cause
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       a crash on windows if the table is renamed and 
 
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       a crash on windows if the table is renamed and
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       later on referenced by the merge table.
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     */
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    if( info->owned_by_merge && (info->s)->kfile < 0 )
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  IMPLEMENTATION
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    Allow concurrent inserts if we don't have a hole in the table or
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    if there is no active write lock and there is active read locks and 
 
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    if there is no active write lock and there is active read locks and
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    myisam_concurrent_insert == 2. In this last case the new
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    row('s) are inserted at end of file instead of filling up the hole.
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