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sqlite3

    1: # 2010 September 17
    2: #
    3: #    May you do good and not evil.
    4: #    May you find forgiveness for yourself and forgive others.
    5: #    May you share freely, never taking more than you give.
    6: #
    7: #***********************************************************************
    8: #
    9: 
   10: set testdir [file dirname $argv0]
   11: source $testdir/tester.tcl
   12: 
   13: ifcapable !fts3||!shared_cache {
   14:   finish_test
   15:   return
   16: }
   17: 
   18: db close
   19: set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
   20: 
   21: # Open two connections to the database in shared-cache mode.
   22: #
   23: sqlite3 db test.db
   24: sqlite3 db2 test.db
   25: 
   26: # Create a virtual FTS3 table. Populate it with some initial data.
   27: #
   28: do_execsql_test fts3shared-1.1 {
   29:   CREATE VIRTUAL TABLE t1 USING fts3(x);
   30:   BEGIN;
   31:   INSERT INTO t1 VALUES('We listened and looked sideways up!');
   32:   INSERT INTO t1 VALUES('Fear at my heart, as at a cup,');
   33:   INSERT INTO t1 VALUES('My life-blood seemed to sip!');
   34:   INSERT INTO t1 VALUES('The stars were dim, and thick the night');
   35:   COMMIT;
   36: } {}
   37: 
   38: # Open a write transaction and insert rows into the FTS3 table. This takes
   39: # a write-lock on the underlying t1_content table.
   40: #
   41: do_execsql_test fts3shared-1.2 {
   42:   BEGIN;
   43:     INSERT INTO t1 VALUES('The steersman''s face by his lamp gleamed white;');
   44: } {}
   45: 
   46: # Now try a SELECT on the full-text table. This particular SELECT does not
   47: # read data from the %_content table. But it still attempts to obtain a lock
   48: # on that table and so the SELECT fails.
   49: #
   50: do_test fts3shared-1.3 {
   51:   catchsql {  
   52:     BEGIN;
   53:       SELECT rowid FROM t1 WHERE t1 MATCH 'stars' 
   54:   } db2
   55: } {1 {database table is locked}}
   56: 
   57: # Verify that the first connection can commit its transaction.
   58: #
   59: do_test fts3shared-1.4 { sqlite3_get_autocommit db } 0
   60: do_execsql_test fts3shared-1.5 { COMMIT } {}
   61: do_test fts3shared-1.6 { sqlite3_get_autocommit db } 1
   62: 
   63: # Verify that the second connection still has an open transaction.
   64: #
   65: do_test fts3shared-1.6 { sqlite3_get_autocommit db2 } 0
   66: 
   67: db close
   68: db2 close
   69: 
   70: sqlite3_enable_shared_cache $::enable_shared_cache
   71: finish_test
   72: