diff options
| author | unknown <thek@adventure.(none)> | 2007-10-01 12:44:29 +0200 |
|---|---|---|
| committer | unknown <thek@adventure.(none)> | 2007-10-01 12:44:29 +0200 |
| commit | 319c6ef199118a8cf5431381c7d80551ec5f05c2 (patch) | |
| tree | 51acc090b3821aa94fa62d3c079ad7f02ccee14d /sql/sql_cache.cc | |
| parent | 0d6ec6cdc8c353af7b373df59264e7283e22edc5 (diff) | |
| download | mariadb-git-319c6ef199118a8cf5431381c7d80551ec5f05c2.tar.gz | |
Bug #30768 query cache patch for bug #21074 crashes on windows
"pthread_mutex_trylock" isn't implemented correctly for the Windows platform.
This temporary patch reverts the patch for bug#21074 for Windows until
pthread_mutex_trylock is properly implemented.
sql/sql_cache.cc:
Added code branch for the Windows platform to avoid a faulty pthread_mutex_trylock
implementation.
Diffstat (limited to 'sql/sql_cache.cc')
| -rw-r--r-- | sql/sql_cache.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sql/sql_cache.cc b/sql/sql_cache.cc index 9a29350880e..8c868971911 100644 --- a/sql/sql_cache.cc +++ b/sql/sql_cache.cc @@ -1032,12 +1032,14 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length) Query_cache_block_table *block_table, *block_table_end; ulong tot_length; Query_cache_query_flags flags; +#ifndef __WIN__ const uint spin_treshold= 50000; const double lock_time_treshold= 0.1; /* Time in seconds */ uint spin_count= 0; int lock_status= 0; ulong new_time= 0; ulong stop_time= 0; +#endif DBUG_ENTER("Query_cache::send_result_to_client"); @@ -1085,6 +1087,9 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length) } } +#ifdef __WIN__ + STRUCT_LOCK(&structure_guard_mutex); +#else stop_time= my_clock()+(ulong)lock_time_treshold*CLOCKS_PER_SEC; while ((lock_status= pthread_mutex_trylock(&structure_guard_mutex)) == EBUSY && spin_count < spin_treshold @@ -1107,6 +1112,7 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length) thd->lex->safe_to_cache_query= FALSE; goto err; } +#endif if (query_cache_size == 0 || flush_in_progress) { |