When compiled for WinRT, avoid using MapViewOfFile and GetFileAttributes. Also, reset the private 'sleep' event handle when the VFS is cleaned up.

FossilOrigin-Name: 38df8fc1b49d55b61cb168a61134b4a314a62f21

manifest

@@ -1,5 +1,5 @@
-C When\scompiled\sfor\sWinRT,\savoid\susing\sthe\sFORMAT_MESSAGE_ALLOCATE_BUFFER\sflag\sto\sFormatMessage\s(i.e.\sbecause\sLocalFree\sis\sunavailable).
-D 2012-03-02T23:53:54.759
+C When\scompiled\sfor\sWinRT,\savoid\susing\sMapViewOfFile\sand\sGetFileAttributes.\s\sAlso,\sreset\sthe\sprivate\s'sleep'\sevent\shandle\swhen\sthe\sVFS\sis\scleaned\sup.
+D 2012-03-03T13:15:25.497
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 3f79a373e57c3b92dabf76f40b065e719d31ac34
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -167,7 +167,7 @@ F src/os.h c3a9db9e8e16f564e1a40cea1687dad69634262c
 F src/os_common.h 92815ed65f805560b66166e3583470ff94478f04
 F src/os_os2.c 4a75888ba3dfc820ad5e8177025972d74d7f2440
 F src/os_unix.c 0e3d2942d228d0366fb80a3640f35caf413b66d1
-F src/os_win.c bde6f1867d1fca808dabf43f8caaa7130b3e666a
+F src/os_win.c 26867d8bafe695eeb48b24859bbd7a2d56cbd9fe
 F src/pager.c 3955b62cdb5bb64559607cb474dd12a6c8e1d4a5
 F src/pager.h ef1eaf8593e78f73885c1dfac27ad83bee23bdc5
 F src/parse.y 1ddd71ae55f4b7cbb2672526ea4de023de0f519e
@@ -991,7 +991,7 @@ F tool/tostr.awk e75472c2f98dd76e06b8c9c1367f4ab07e122d06
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
 F tool/warnings-clang.sh 9f406d66e750e8ac031c63a9ef3248aaa347ef2a
 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
-P 3e7ba3ddb956056b8132ed383feed4f329c634e0
-R fa5ae504586a17ee7bea7c3ad368dd9c
+P 9eb331be7e905d11d9075ce1596478b55a7f488b
+R aeb2dd36cdcdc79eb8c1f0db8889436a
 U mistachkin
-Z c2c4f50ec9e4a87a7802b817ca07287e
+Z 3283741a5ac47d4e9a6c7dd3f7a23bf5

manifest.uuid

@@ -1 +1 @@
-9eb331be7e905d11d9075ce1596478b55a7f488b
+38df8fc1b49d55b61cb168a61134b4a314a62f21

src/os_win.c

@@ -666,6 +666,11 @@ static struct win_syscall {
   { "GetFileInformationByHandleEx", (SYSCALL)0,                  0 },
 #endif
 
+  { "MapViewOfFileEx",         (SYSCALL)MapViewOfFileEx,         0 },
+
+#define osMapViewOfFileEx ((LPVOID(WINAPI*)(HANDLE,DWORD,DWORD,DWORD,SIZE_T, \
+        LPVOID))aSyscall[65].pCurrent)
+
 }; /* End of the overrideable system calls */
 
 /*
@@ -2996,9 +3001,15 @@ static int winShmMap(
       if( hMap ){
         int iOffset = pShmNode->nRegion*szRegion;
         int iOffsetShift = iOffset % winSysInfo.dwAllocationGranularity;
+#if SQLITE_OS_WINRT
+        pMap = osMapViewOfFileEx(hMap, FILE_MAP_WRITE | FILE_MAP_READ,
+            0, iOffset - iOffsetShift, szRegion + iOffsetShift, NULL
+        );
+#else
         pMap = osMapViewOfFile(hMap, FILE_MAP_WRITE | FILE_MAP_READ,
             0, iOffset - iOffsetShift, szRegion + iOffsetShift
         );
+#endif
         OSTRACE(("SHM-MAP pid-%d map region=%d offset=%d size=%d %s\n",
                  (int)osGetCurrentProcessId(), pShmNode->nRegion, iOffset,
                  szRegion, pMap ? "ok" : "failed"));
@@ -3419,15 +3430,21 @@ static int winDelete(
   if( zConverted==0 ){
     return SQLITE_IOERR_NOMEM;
   }
+  rc = 1;
   if( isNT() ){
-    rc = 1;
+#if SQLITE_OS_WINRT
+    WIN32_FILE_ATTRIBUTE_DATA sAttrData;
+    memset(&sAttrData, 0, sizeof(sAttrData));
+    while( osGetFileAttributesExW(zConverted, GetFileExInfoStandard,
+                                  &sAttrData) &&
+#else
     while( osGetFileAttributesW(zConverted)!=INVALID_FILE_ATTRIBUTES &&
+#endif
          (rc = osDeleteFileW(zConverted))==0 && retryIoerr(&cnt, &lastErrno) ){}
     rc = rc ? SQLITE_OK : SQLITE_ERROR;
   }
 #ifdef SQLITE_WIN32_HAS_ANSI
   else{
-    rc = 1;
     while( osGetFileAttributesA(zConverted)!=INVALID_FILE_ATTRIBUTES &&
          (rc = osDeleteFileA(zConverted))==0 && retryIoerr(&cnt, &lastErrno) ){}
     rc = rc ? SQLITE_OK : SQLITE_ERROR;
@@ -3834,7 +3851,7 @@ int sqlite3_os_init(void){
 
   /* Double-check that the aSyscall[] array has been constructed
   ** correctly.  See ticket [bb3a86e890c8e96ab] */
-  assert( ArraySize(aSyscall)==65 );
+  assert( ArraySize(aSyscall)==66 );
 
 #if SQLITE_OS_WINRT
   sleepObj = osCreateEventEx(NULL, NULL, CREATE_EVENT_MANUAL_RESET, 
@@ -3855,6 +3872,7 @@ int sqlite3_os_init(void){
 int sqlite3_os_end(void){ 
 #if SQLITE_OS_WINRT
   osCloseHandle(sleepObj);
+  sleepObj = NULL;
 #endif
   return SQLITE_OK;
 }