Change code in malloc_common.tcl (test code) to retry a "file delete -force" if

it fails.

FossilOrigin-Name: ebfb04f00c839601d92d33b9c2305fc4ce869bbc

manifest

@@ -1,8 +1,5 @@
------BEGIN PGP SIGNED MESSAGE-----
-Hash: SHA1
-
-C Updates\sto\sthe\ssqlite3_progress_handler()\sdocumentation.
-D 2010-09-15T23:41:24
+C Change\scode\sin\smalloc_common.tcl\s(test\scode)\sto\sretry\sa\s"file\sdelete\s-force"\sif\nit\sfails.
+D 2010-09-16T15:23:07
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in c599a15d268b1db2aeadea19df2adc3bf2eb6bee
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -525,7 +522,7 @@ F test/mallocH.test 79b65aed612c9b3ed2dcdaa727c85895fd1bfbdb
 F test/mallocI.test a88c2b9627c8506bf4703d8397420043a786cdb6
 F test/mallocJ.test b5d1839da331d96223e5f458856f8ffe1366f62e
 F test/mallocK.test d79968641d1b70d88f6c01bdb9a7eb4a55582cc9
-F test/malloc_common.tcl 9b032b2e9172952400be0910d28f1852d5ca1ed1
+F test/malloc_common.tcl cda732c0d2365a058c2a73778cf6b6da6db54452
 F test/manydb.test b3d3bc4c25657e7f68d157f031eb4db7b3df0d3c
 F test/memdb.test 0825155b2290e900264daaaf0334b6dfe69ea498
 F test/memleak.test 10b9c6c57e19fc68c32941495e9ba1c50123f6e2
@@ -636,7 +633,7 @@ F test/tclsqlite.test 8c154101e704170c2be10f137a5499ac2c6da8d3
 F test/tempdb.test 800c36623d67a2ad1f58784b9c5644e0405af6e6
 F test/temptable.test f42121a0d29a62f00f93274464164177ab1cc24a
 F test/temptrigger.test b0273db072ce5f37cf19140ceb1f0d524bbe9f05
-F test/tester.tcl d2f1bf08719de0d40bde73096c55a03d0a7de503
+F test/tester.tcl d0c7b39c374156f3a37eeeb83af279c41c60ecbc
 F test/thread001.test a3e6a7254d1cb057836cb3145b60c10bf5b7e60f
 F test/thread002.test afd20095e6e845b405df4f2c920cb93301ca69db
 F test/thread003.test b824d4f52b870ae39fc5bae4d8070eca73085dca
@@ -860,14 +857,7 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
-P 14f156632729d1a44ef234f39ff9df32db6b308a
-R d553d625fffd87b4f35a681bb7a245ce
-U drh
-Z 0d39acdb955e95d3736b9e8eb9643b00
------BEGIN PGP SIGNATURE-----
-Version: GnuPG v1.4.6 (GNU/Linux)
-
-iD8DBQFMkVmooxKgR168RlERAgNmAJoDiKM26gmlvaa5t8E8s8hnaY4+pACgim5h
-26XMQhRVu2SUorfyCfdexXo=
-=Y4G6
------END PGP SIGNATURE-----
+P 78f659ee9bb60df3503998301b554fe81fa6bdd3
+R ee96a2d4950e0abaf03c37482918b8c3
+U dan
+Z 9971ebfc8719fca164d2b024c4c43a5a

manifest.uuid

@@ -1 +1 @@
-78f659ee9bb60df3503998301b554fe81fa6bdd3
+ebfb04f00c839601d92d33b9c2305fc4ce869bbc

test/malloc_common.tcl

@@ -143,7 +143,7 @@ proc do_faultsim_test {name args} {
 #   faultsim_delete_and_reopen
 #
 proc faultsim_save {} {
-  foreach f [glob -nocomplain sv_test.db*] { file delete -force $f }
+  foreach f [glob -nocomplain sv_test.db*] { forcedelete $f }
   foreach f [glob -nocomplain test.db*] {
     set f2 "sv_$f"
     file copy -force $f $f2
@@ -155,7 +155,7 @@ proc faultsim_save_and_close {} {
   return ""
 }
 proc faultsim_restore {} {
-  foreach f [glob -nocomplain test.db*] { file delete -force $f }
+  foreach f [glob -nocomplain test.db*] { forcedelete $f }
   foreach f2 [glob -nocomplain sv_test.db*] {
     set f [string range $f2 3 end]
     file copy -force $f2 $f
@@ -422,12 +422,12 @@ proc do_malloc_test {tn args} {
         # 
         catch {db close} 
         catch {db2 close} 
-        catch {file delete -force test.db}
-        catch {file delete -force test.db-journal}
-        catch {file delete -force test.db-wal}
-        catch {file delete -force test2.db}
-        catch {file delete -force test2.db-journal}
-        catch {file delete -force test2.db-wal}
+        forcedelete test.db
+        forcedelete test.db-journal
+        forcedelete test.db-wal
+        forcedelete test2.db
+        forcedelete test2.db-journal
+        forcedelete test2.db-wal
         if {[info exists ::mallocopts(-testdb)]} {
           file copy $::mallocopts(-testdb) test.db
         }

test/tester.tcl

@@ -601,9 +601,21 @@ proc stepsql {dbptr sql} {
 # Delete a file or directory
 #
 proc forcedelete {filename} {
-  if {[catch {file delete -force $filename}]} {
-    exec rm -rf $filename
+  # On windows, sometimes even a [file delete -force] can fail just after
+  # a file is closed. The cause is usually "tag-alongs" - programs like
+  # anti-virus software, automatic backup tools and various explorer
+  # extensions that keep a file open a little longer than we expect, causing
+  # the delete to fail.
+  #
+  # The solution is to wait a short amount of time before retrying the delete.
+  #
+  set nRetry  50                  ;# Maximum number of retries.
+  set nDelay 100                  ;# Delay in ms before retrying.
+  set rc 1
+  for {set i 0} {$i<$nRetry && $rc} {incr i} {
+    set rc [catch {file delete -force $filename} msg]
   }
+  if {$rc} { error $msg }
 }
 
 # Do an integrity check of the entire database