Remove the code that attempts to find the sector size from the OS and

hardcode the xSectorSize methods of the unix and windows VFSes to return
SQLITE_DEFAULT_SECTOR_SIZE, which is now set to 4096 unless overridden.

FossilOrigin-Name: 03d8362cd2cadab8e1cc5b18a3194152f2bd0a84

manifest

@@ -1,5 +1,5 @@
-C Change\spage\squantities\sin\spcache1.c\sto\sunsigned.
+C Remove\sthe\scode\sthat\sattempts\sto\sfind\sthe\ssector\ssize\sfrom\sthe\sOS\sand\nhardcode\sthe\sxSectorSize\smethods\sof\sthe\sunix\sand\swindows\sVFSes\sto\sreturn\nSQLITE_DEFAULT_SECTOR_SIZE,\swhich\sis\snow\sset\sto\s4096\sunless\soverridden.
-D 2012-01-02T18:00:55.564
+D 2012-01-02T18:20:14.209
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 5b4a3e12a850b021547e43daf886b25133b44c07
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -163,11 +163,11 @@ F src/mutex_unix.c b4f4e923bb8de93ec3f251fadb50855f23df9579
 F src/mutex_w32.c 5e54f3ba275bcb5d00248b8c23107df2e2f73e33
 F src/notify.c 976dd0f6171d4588e89e874fcc765e92914b6d30
 F src/os.c 519bdf7c608c4848024e1d87934f9305454145f4
-F src/os.h 549b1a2e5e0ed1e1499f252dac126c4973e7379c
+F src/os.h c7d888830f168a9b681b3aec30789f4ad2445c17
 F src/os_common.h 92815ed65f805560b66166e3583470ff94478f04
 F src/os_os2.c 4a75888ba3dfc820ad5e8177025972d74d7f2440
-F src/os_unix.c 3a441671f35569df4b72641e928fdb1ab5cd8576
+F src/os_unix.c 51acd5477f7c92321bbc665282a710556f19b4a7
-F src/os_win.c 569fe7448e781bfb8116aa79081df0eadf576fc6
+F src/os_win.c 0d3522dd0ad82b615748d4d391211af62b57ae03
 F src/pager.c a21a3191ab75310ea75bb61149e63b835f77f5f0
 F src/pager.h 5cd760857707529b403837d813d86b68938d6183
 F src/parse.y fabb2e7047417d840e6fdb3ef0988a86849a08ba
@@ -986,7 +986,7 @@ F tool/tostr.awk e75472c2f98dd76e06b8c9c1367f4ab07e122d06
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
 F tool/warnings-clang.sh 9f406d66e750e8ac031c63a9ef3248aaa347ef2a
 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
-P c1691d998a03fee3bef137ccf2e8ca45acac2df4
+P da52e6e8b490508bc1ee4700aa45a79f398363da
-R 84be2ca283aa4d12d0883d5cb3ef90ca
+R a0b8de10aeee04558967b4b25ead4061
 U drh
-Z 981c2603df115cccf0c78e5588d3bb18
+Z d686dcd0a4de73c84f2800d730af321e

manifest.uuid

@@ -1 +1 @@
-da52e6e8b490508bc1ee4700aa45a79f398363da
+03d8362cd2cadab8e1cc5b18a3194152f2bd0a84

src/os.h

@@ -119,7 +119,7 @@
 ** The default size of a disk sector
 */
 #ifndef SQLITE_DEFAULT_SECTOR_SIZE
-# define SQLITE_DEFAULT_SECTOR_SIZE 512
+# define SQLITE_DEFAULT_SECTOR_SIZE 4096
 #endif
 
 /*

src/os_unix.c

@@ -122,9 +122,6 @@
 #ifndef SQLITE_OMIT_WAL
 #include <sys/mman.h>
 #endif
-#ifndef MISSING_STATVFS
-#include <sys/statvfs.h>
-#endif
 
 
 #if SQLITE_ENABLE_LOCKING_STYLE
@@ -215,7 +212,6 @@ struct unixFile {
   int h;                              /* The file descriptor */
   unsigned char eFileLock;            /* The type of lock held on this fd */
   unsigned char ctrlFlags;            /* Behavioral bits.  UNIXFILE_* flags */
-  unsigned char szSector;             /* Sectorsize/512 */
   int lastErrno;                      /* The unix errno from last I/O error */
   void *lockingContext;               /* Locking style specific state */
   UnixUnusedFd *pUnused;              /* Pre-allocated UnixUnusedFd */
@@ -420,14 +416,6 @@ static struct unix_syscall {
   { "rmdir",        (sqlite3_syscall_ptr)rmdir,           0 },
 #define osRmdir     ((int(*)(const char*))aSyscall[19].pCurrent)
 
-#if defined(MISSING_STATVFS)
-  { "statvfs",      (sqlite3_syscall_ptr)0,               0 },
-#define osStatvfs   ((int(*)(const char*,void*))aSyscall[20].pCurrent)
-#else
-  { "statvfs",      (sqlite3_syscall_ptr)statvfs,         0 },
-#define osStatvfs   ((int(*)(const char*,struct statvfs*))aSyscall[20].pCurrent)
-#endif
-
 }; /* End of the overrideable system calls */
 
 /*
@@ -3600,23 +3588,8 @@ static int unixFileControl(sqlite3_file *id, int op, void *pArg){
 ** same for both.
 */
 static int unixSectorSize(sqlite3_file *pFile){
-  unixFile *p = (unixFile*)pFile;
+  (void)pFile;
-  if( p->szSector==0 ){
+  return SQLITE_DEFAULT_SECTOR_SIZE;
-#ifdef MISSING_STATVFS
-    p->szSector = SQLITE_DEFAULT_SECTOR_SIZE/512;
-#else
-    struct statvfs x;
-    int sz;
-    memset(&x, 0, sizeof(x));
-    osStatvfs(p->zPath, &x);
-    sz = (int)x.f_frsize;
-    if( sz<512 || sz>65536 || (sz&(sz-1))!=0 ){
-      sz = SQLITE_DEFAULT_SECTOR_SIZE;
-    }
-    p->szSector = sz/512;
-#endif
-  }
-  return p->szSector*512;
 }
 
 /*
@@ -6833,7 +6806,7 @@ int sqlite3_os_init(void){
 
   /* Double-check that the aSyscall[] array has been constructed
   ** correctly.  See ticket [bb3a86e890c8e96ab] */
-  assert( ArraySize(aSyscall)==21 );
+  assert( ArraySize(aSyscall)==20 );
 
   /* Register all VFSes defined in the aVfs[] array */
   for(i=0; i<(sizeof(aVfs)/sizeof(sqlite3_vfs)); i++){

src/os_win.c

@@ -61,7 +61,6 @@ struct winFile {
   short sharedLockByte;   /* Randomly chosen byte used as a shared lock */
   u8 ctrlFlags;           /* Flags.  See WINFILE_* below */
   DWORD lastErrno;        /* The Windows errno from the last I/O error */
-  DWORD sectorSize;       /* Sector size of the device file is on */
   winShm *pShm;           /* Instance of shared memory on this file */
   const char *zPath;      /* Full pathname of this file */
   int szChunk;            /* Chunk size configured by FCNTL_CHUNK_SIZE */
@@ -151,14 +150,6 @@ static void winMemShutdown(void *pAppData);
 const sqlite3_mem_methods *sqlite3MemGetWin32(void);
 #endif /* SQLITE_WIN32_MALLOC */
 
-/*
-** Forward prototypes.
-*/
-static int getSectorSize(
-    sqlite3_vfs *pVfs,
-    const char *zRelative     /* UTF-8 file name */
-);
-
 /*
 ** The following variable is (normally) set once and never changes
 ** thereafter.  It records whether the operating system is Win9x
@@ -2225,8 +2216,8 @@ static int winFileControl(sqlite3_file *id, int op, void *pArg){
 ** same for both.
 */
 static int winSectorSize(sqlite3_file *id){
-  assert( id!=0 );
+  (void)id;
-  return (int)(((winFile*)id)->sectorSize);
+  return SQLITE_DEFAULT_SECTOR_SIZE;
 }
 
 /*
@@ -3203,7 +3194,6 @@ static int winOpen(
   if( sqlite3_uri_boolean(zName, "psow", SQLITE_POWERSAFE_OVERWRITE) ){
     pFile->ctrlFlags |= WINFILE_PSOW;
   }
-  pFile->sectorSize = getSectorSize(pVfs, zUtf8Name);
 
 #if SQLITE_OS_WINCE
   if( isReadWrite && eType==SQLITE_OPEN_MAIN_DB
@@ -3448,81 +3438,6 @@ static int winFullPathname(
 #endif
 }
 
-/*
-** Get the sector size of the device used to store
-** file.
-*/
-static int getSectorSize(
-    sqlite3_vfs *pVfs,
-    const char *zRelative     /* UTF-8 file name */
-){
-  DWORD bytesPerSector = SQLITE_DEFAULT_SECTOR_SIZE;
-  /* GetDiskFreeSpace is not supported under WINCE */
-#if SQLITE_OS_WINCE
-  UNUSED_PARAMETER(pVfs);
-  UNUSED_PARAMETER(zRelative);
-#else
-  char zFullpath[MAX_PATH+1];
-  int rc;
-  DWORD dwRet = 0;
-  DWORD dwDummy;
-
-  /*
-  ** We need to get the full path name of the file
-  ** to get the drive letter to look up the sector
-  ** size.
-  */
-  SimulateIOErrorBenign(1);
-  sqlite3BeginBenignMalloc();
-  rc = winFullPathname(pVfs, zRelative, MAX_PATH, zFullpath);
-  sqlite3EndBenignMalloc();
-  SimulateIOErrorBenign(0);
-  if( rc == SQLITE_OK )
-  {
-    void *zConverted;
-    sqlite3BeginBenignMalloc();
-    zConverted = convertUtf8Filename(zFullpath);
-    sqlite3EndBenignMalloc();
-    if( zConverted ){
-      if( isNT() ){
-        /* trim path to just drive reference */
-        LPWSTR p = zConverted;
-        for(;*p;p++){
-          if( *p == '\\' ){
-            *p = '\0';
-            break;
-          }
-        }
-        dwRet = osGetDiskFreeSpaceW((LPCWSTR)zConverted,
-                                    &dwDummy,
-                                    &bytesPerSector,
-                                    &dwDummy,
-                                    &dwDummy);
-      }else{
-        /* trim path to just drive reference */
-        char *p = (char *)zConverted;
-        for(;*p;p++){
-          if( *p == '\\' ){
-            *p = '\0';
-            break;
-          }
-        }
-        dwRet = osGetDiskFreeSpaceA((char*)zConverted,
-                                    &dwDummy,
-                                    &bytesPerSector,
-                                    &dwDummy,
-                                    &dwDummy);
-      }
-      sqlite3_free(zConverted);
-    }
-    if( !dwRet ){
-      bytesPerSector = SQLITE_DEFAULT_SECTOR_SIZE;
-    }
-  }
-#endif
-  return (int) bytesPerSector; 
-}
-
 #ifndef SQLITE_OMIT_LOAD_EXTENSION
 /*
 ** Interfaces for opening a shared library, finding entry points