Add //third_party/sqlite to dirs_to_snapshot, remove net_sql.patch

third_party/sqlite/src/test/mmap1.test

Index: third_party/sqlite/src/test/mmap1.test
diff --git a/third_party/sqlite/src/test/mmap1.test b/third_party/sqlite/src/test/mmap1.test
new file mode 100644
index 0000000000000000000000000000000000000000..ece3e0201ed2aceb86cfc48e0adf7d9266a8c4bc
--- /dev/null
+++ b/third_party/sqlite/src/test/mmap1.test
@@ -0,0 +1,331 @@
+# 2013 March 20
+#
+# The author disclaims copyright to this source code.  In place of
+# a legal notice, here is a blessing:
+#
+#    May you do good and not evil.
+#    May you find forgiveness for yourself and forgive others.
+#    May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !mmap {
+  finish_test
+  return
+}
+source $testdir/lock_common.tcl
+set testprefix mmap1
+
+proc nRead {db} {
+  set bt [btree_from_db $db]
+  db_enter $db
+  array set stats [btree_pager_stats $bt]
+  db_leave $db
+  # puts [array get stats]
+  return $stats(read)
+}
+
+proc register_rblob_code {dbname seed} {
+  return [subst -nocommands {
+    set ::rcnt $seed
+    proc rblob {n} {
+      set ::rcnt [expr (([set ::rcnt] << 3) + [set ::rcnt] + 456) & 0xFFFFFFFF]
+      set str [format %.8x [expr [set ::rcnt] ^ 0xbdf20da3]] 
+      string range [string repeat [set str] [expr [set n]/4]] 1 [set n]
+    }
+    $dbname func rblob rblob
+  }]
+}
+
+# For cases 1.1 and 1.4, the number of pages read using xRead() is 4 on
+# unix and 9 on windows. The difference is that windows only ever maps
+# an integer number of OS pages (i.e. creates mappings that are a multiple 
+# of 4KB in size). Whereas on unix any sized mapping may be created.
+#
+foreach {t mmap_size nRead c2init} {
+  1.1 { PRAGMA mmap_size = 67108864 } /[49]/ {PRAGMA mmap_size = 0}
+  1.2 { PRAGMA mmap_size =    53248 } 150    {PRAGMA mmap_size = 0}
+  1.3 { PRAGMA mmap_size =        0 } 344    {PRAGMA mmap_size = 0}
+  1.4 { PRAGMA mmap_size = 67108864 } /[49]/ {PRAGMA mmap_size = 67108864 }
+  1.5 { PRAGMA mmap_size =    53248 } 150    {PRAGMA mmap_size = 67108864 }
+  1.6 { PRAGMA mmap_size =        0 } 344    {PRAGMA mmap_size = 67108864 }
+} {
+
+  do_multiclient_test tn {
+    sql1 {PRAGMA cache_size=2000}
+    sql2 {PRAGMA cache_size=2000}
+
+    sql1 {PRAGMA page_size=1024}
+    sql1 $mmap_size
+    sql2 $c2init
+
+    code2 [register_rblob_code db2 0]
+
+    sql2 {
+      PRAGMA page_size=1024;
+      PRAGMA auto_vacuum = 1;
+      CREATE TABLE t1(a, b, UNIQUE(a, b));
+      INSERT INTO t1 VALUES(rblob(500), rblob(500));
+      INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    2
+      INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    4
+      INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    8
+      INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --   16
+      INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --   32
+    }
+    do_test $t.$tn.1 {
+      sql1 "SELECT count(*) FROM t1; PRAGMA integrity_check ; PRAGMA page_count"
+    } {32 ok 77}
+
+    # Have connection 2 shrink the file. Check connection 1 can still read it.
+    sql2 { DELETE FROM t1 WHERE rowid%2; }
+    do_test $t.$tn.2 {
+      sql1 "SELECT count(*) FROM t1; PRAGMA integrity_check ; PRAGMA page_count"
+    } {16 ok 42}
+
+    # Have connection 2 grow the file. Check connection 1 can still read it.
+    sql2 { INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1 }
+    do_test $t.$tn.3 {
+      sql1 "SELECT count(*) FROM t1; PRAGMA integrity_check ; PRAGMA page_count"
+    } {32 ok 79}
+
+    # Have connection 2 grow the file again. Check connection 1 is still ok.
+    sql2 { INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1 }
+    do_test $t.$tn.4 {
+      sql1 "SELECT count(*) FROM t1; PRAGMA integrity_check ; PRAGMA page_count"
+    } {64 ok 149}
+
+    # Check that the number of pages read by connection 1 indicates that the
+    # "PRAGMA mmap_size" command worked.
+    do_test $t.$tn.5 { nRead db } $nRead
+  }
+}
+
+set ::rcnt 0
+proc rblob {n} {
+  set ::rcnt [expr (($::rcnt << 3) + $::rcnt + 456) & 0xFFFFFFFF]
+  set str [format %.8x [expr $::rcnt ^ 0xbdf20da3]] 
+  string range [string repeat $str [expr $n/4]] 1 $n
+}
+
+reset_db
+db func rblob rblob
+
+do_execsql_test 2.1 {
+  PRAGMA auto_vacuum = 1;
+  PRAGMA mmap_size = 67108864;
+  PRAGMA journal_mode = wal;
+  CREATE TABLE t1(a, b, UNIQUE(a, b));
+  INSERT INTO t1 VALUES(rblob(500), rblob(500));
+  INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    2
+  INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    4
+  INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    8
+  INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --   16
+  INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --   32
+  PRAGMA wal_checkpoint;
+} {67108864 wal 0 103 103}
+
+do_execsql_test 2.2 {
+  PRAGMA auto_vacuum;
+  SELECT count(*) FROM t1;
+} {1 32}
+
+if {[permutation] != "inmemory_journal"} {
+  do_test 2.3 {
+    sqlite3 db2 test.db
+    db2 func rblob rblob
+    db2 eval { 
+      DELETE FROM t1 WHERE (rowid%4);
+        PRAGMA wal_checkpoint;
+    }
+    db2 eval { 
+      INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    16
+      SELECT count(*) FROM t1;
+    }
+  } {16}
+
+  do_execsql_test 2.4 {
+    PRAGMA wal_checkpoint;
+  } {0 24 24}
+  db2 close
+}
+
+reset_db
+execsql { PRAGMA mmap_size = 67108864; }
+db func rblob rblob
+do_execsql_test 3.1 {
+  PRAGMA auto_vacuum = 1;
+
+  CREATE TABLE t1(a, b, UNIQUE(a, b));
+  INSERT INTO t1 VALUES(rblob(500), rblob(500));
+  INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    2
+  INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    4
+  INSERT INTO t1 SELECT rblob(500), rblob(500) FROM t1; --    8
+
+  CREATE TABLE t2(a, b, UNIQUE(a, b));
+  INSERT INTO t2 SELECT * FROM t1;
+} {}
+
+do_test 3.2 {
+  set nRow 0
+  db eval {SELECT * FROM t2 ORDER BY a, b} {
+    if {$nRow==4} { db eval { DELETE FROM t1 } }
+    incr nRow
+  }
+  set nRow
+} {8}
+
+#-------------------------------------------------------------------------
+# Ensure that existing cursors using xFetch() pages see changes made
+# to rows using the incrblob API.
+#
+reset_db
+execsql { PRAGMA mmap_size = 67108864; }
+set aaa [string repeat a 400]
+set bbb [string repeat b 400]
+set ccc [string repeat c 400]
+set ddd [string repeat d 400]
+set eee [string repeat e 400]
+
+do_execsql_test 4.1 {
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES($aaa);
+  INSERT INTO t1 VALUES($bbb);
+  INSERT INTO t1 VALUES($ccc);
+  INSERT INTO t1 VALUES($ddd);
+  SELECT * FROM t1;
+  BEGIN;
+} [list $aaa $bbb $ccc $ddd]
+
+do_test 4.2 {
+  set ::STMT [sqlite3_prepare db "SELECT * FROM t1 ORDER BY rowid" -1 dummy]
+  sqlite3_step $::STMT
+  sqlite3_column_text $::STMT 0
+} $aaa
+
+do_test 4.3 {
+  foreach r {2 3 4} {
+    set fd [db incrblob t1 x $r]
+    puts -nonewline $fd $eee
+    close $fd
+  }
+
+  set res [list]
+  while {"SQLITE_ROW" == [sqlite3_step $::STMT]} {
+    lappend res [sqlite3_column_text $::STMT 0]
+  }
+  set res
+} [list $eee $eee $eee]
+
+do_test 4.4 {
+  sqlite3_finalize $::STMT
+} SQLITE_OK
+
+do_execsql_test 4.5 { COMMIT }
+
+#-------------------------------------------------------------------------
+# Ensure that existing cursors holding xFetch() references are not 
+# confused if those pages are moved to make way for the root page of a
+# new table or index.
+#
+reset_db
+execsql { PRAGMA mmap_size = 67108864; }
+do_execsql_test 5.1 {
+  PRAGMA auto_vacuum = 2;
+  PRAGMA page_size = 1024;
+  CREATE TABLE t1(x);
+  INSERT INTO t1 VALUES($aaa);
+  INSERT INTO t1 VALUES($bbb);
+  INSERT INTO t1 VALUES($ccc);
+  INSERT INTO t1 VALUES($ddd);
+
+  PRAGMA auto_vacuum;
+  SELECT * FROM t1;
+} [list 2 $aaa $bbb $ccc $ddd]
+
+do_test 5.2 {
+  set ::STMT [sqlite3_prepare db "SELECT * FROM t1 ORDER BY rowid" -1 dummy]
+  sqlite3_step $::STMT
+  sqlite3_column_text $::STMT 0
+} $aaa
+
+do_execsql_test 5.3 {
+  CREATE TABLE t2(x);
+  INSERT INTO t2 VALUES('tricked you!');
+  INSERT INTO t2 VALUES('tricked you!');
+}
+
+do_test 5.4 {
+  sqlite3_step $::STMT
+  sqlite3_column_text $::STMT 0
+} $bbb
+
+do_test 5.5 {
+  sqlite3_finalize $::STMT
+} SQLITE_OK
+
+#-------------------------------------------------------------------------
+# Test various mmap_size settings.
+#
+foreach {tn1 mmap1 mmap2} {
+     1 6144       167773
+     2 18432      140399
+     3 43008      401302
+     4 92160      253899
+     5 190464          2
+     6 387072     752431
+     7 780288     291143
+     8 1566720    594306
+     9 3139584    829137
+     10 6285312   793963
+     11 12576768 1015590
+} {
+  do_multiclient_test tn {
+    sql1 {
+      CREATE TABLE t1(a PRIMARY KEY);
+      CREATE TABLE t2(x);
+      INSERT INTO t2 VALUES('');
+    }
+
+    code1 [register_rblob_code db  0]
+    code2 [register_rblob_code db2 444]
+
+    sql1 "PRAGMA mmap_size = $mmap1"
+    sql2 "PRAGMA mmap_size = $mmap2"
+
+    do_test $tn1.$tn { 
+      for {set i 1} {$i <= 100} {incr i} {
+        if {$i % 2} {
+          set c1 sql1
+            set c2 sql2
+        } else {
+          set c1 sql2
+            set c2 sql1
+        }
+
+        $c1 {
+          INSERT INTO t1 VALUES( rblob(5000) );
+          UPDATE t2 SET x = (SELECT md5sum(a) FROM t1);
+        }
+
+        set res [$c2 { 
+            SELECT count(*) FROM t1;
+            SELECT x == (SELECT md5sum(a) FROM t1) FROM t2;
+            PRAGMA integrity_check;
+        }]
+        if {$res != [list $i 1 ok]} {
+          do_test $tn1.$tn.$i {
+            set ::res
+          } [list $i 1 ok]
+        }
+      }
+      set res 1
+    } {1}
+  }
+}
+
+
+finish_test