15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** 2011 March 16 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** The author disclaims copyright to this source code. In place of 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** a legal notice, here is a blessing: 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** May you do good and not evil. 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** May you find forgiveness for yourself and forgive others. 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** May you share freely, never taking more than you give. 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)****************************************************************************** 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** This file contains code implements a VFS shim that writes diagnostic 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** output for each VFS call, similar to "strace". 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stdlib.h> 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <string.h> 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "sqlite3.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** An instance of this structure is attached to the each trace VFS to 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** provide auxiliary information. 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef struct vfstrace_info vfstrace_info; 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct vfstrace_info { 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRootVfs; /* The underlying real VFS */ 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int (*xOut)(const char*, void*); /* Send output here */ 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void *pOutArg; /* First argument to xOut */ 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *zVfsName; /* Name of this trace-VFS */ 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pTraceVfs; /* Pointer back to the trace VFS */ 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** The sqlite3_file object for the trace VFS 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)typedef struct vfstrace_file vfstrace_file; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct vfstrace_file { 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_file base; /* Base class. Must be first */ 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo; /* The trace-VFS to which this file belongs */ 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *zFName; /* Base name of the file */ 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_file *pReal; /* The real underlying file */ 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Method declarations for vfstrace_file. 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceClose(sqlite3_file*); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceRead(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst); 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceWrite(sqlite3_file*,const void*,int iAmt, sqlite3_int64); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceTruncate(sqlite3_file*, sqlite3_int64 size); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceSync(sqlite3_file*, int flags); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceFileSize(sqlite3_file*, sqlite3_int64 *pSize); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceLock(sqlite3_file*, int); 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceUnlock(sqlite3_file*, int); 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceCheckReservedLock(sqlite3_file*, int *); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceFileControl(sqlite3_file*, int op, void *pArg); 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceSectorSize(sqlite3_file*); 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceDeviceCharacteristics(sqlite3_file*); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceShmLock(sqlite3_file*,int,int,int); 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceShmMap(sqlite3_file*,int,int,int, void volatile **); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void vfstraceShmBarrier(sqlite3_file*); 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceShmUnmap(sqlite3_file*,int); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Method declarations for vfstrace_vfs. 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceOpen(sqlite3_vfs*, const char *, sqlite3_file*, int , int *); 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceDelete(sqlite3_vfs*, const char *zName, int syncDir); 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceAccess(sqlite3_vfs*, const char *zName, int flags, int *); 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceFullPathname(sqlite3_vfs*, const char *zName, int, char *); 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void *vfstraceDlOpen(sqlite3_vfs*, const char *zFilename); 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void vfstraceDlError(sqlite3_vfs*, int nByte, char *zErrMsg); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void (*vfstraceDlSym(sqlite3_vfs*,void*, const char *zSymbol))(void); 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void vfstraceDlClose(sqlite3_vfs*, void*); 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceRandomness(sqlite3_vfs*, int nByte, char *zOut); 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceSleep(sqlite3_vfs*, int microseconds); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceCurrentTime(sqlite3_vfs*, double*); 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceGetLastError(sqlite3_vfs*, int, char*); 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceCurrentTimeInt64(sqlite3_vfs*, sqlite3_int64*); 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceSetSystemCall(sqlite3_vfs*,const char*, sqlite3_syscall_ptr); 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static sqlite3_syscall_ptr vfstraceGetSystemCall(sqlite3_vfs*, const char *); 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static const char *vfstraceNextSystemCall(sqlite3_vfs*, const char *zName); 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Return a pointer to the tail of the pathname. Examples: 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** /home/drh/xyzzy.txt -> xyzzy.txt 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** xyzzy.txt -> xyzzy.txt 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static const char *fileTail(const char *z){ 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i; 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( z==0 ) return 0; 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) i = strlen(z)-1; 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) while( i>0 && z[i-1]!='/' ){ i--; } 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return &z[i]; 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Send trace output defined by zFormat and subsequent arguments. 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void vfstrace_printf( 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo, 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *zFormat, 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ... 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)){ 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) va_list ap; 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char *zMsg; 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) va_start(ap, zFormat); 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) zMsg = sqlite3_vmprintf(zFormat, ap); 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) va_end(ap); 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->xOut(zMsg, pInfo->pOutArg); 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_free(zMsg); 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Convert value rc into a string and print it using zFormat. zFormat 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** should have exactly one %s 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void vfstrace_print_errcode( 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo, 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *zFormat, 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)){ 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char zBuf[50]; 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char *zVal; 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch( rc ){ 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_OK: zVal = "SQLITE_OK"; break; 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_ERROR: zVal = "SQLITE_ERROR"; break; 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_PERM: zVal = "SQLITE_PERM"; break; 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_ABORT: zVal = "SQLITE_ABORT"; break; 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_BUSY: zVal = "SQLITE_BUSY"; break; 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_NOMEM: zVal = "SQLITE_NOMEM"; break; 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_READONLY: zVal = "SQLITE_READONLY"; break; 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_INTERRUPT: zVal = "SQLITE_INTERRUPT"; break; 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR: zVal = "SQLITE_IOERR"; break; 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_CORRUPT: zVal = "SQLITE_CORRUPT"; break; 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_FULL: zVal = "SQLITE_FULL"; break; 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_CANTOPEN: zVal = "SQLITE_CANTOPEN"; break; 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_PROTOCOL: zVal = "SQLITE_PROTOCOL"; break; 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_EMPTY: zVal = "SQLITE_EMPTY"; break; 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_SCHEMA: zVal = "SQLITE_SCHEMA"; break; 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_CONSTRAINT: zVal = "SQLITE_CONSTRAINT"; break; 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_MISMATCH: zVal = "SQLITE_MISMATCH"; break; 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_MISUSE: zVal = "SQLITE_MISUSE"; break; 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_NOLFS: zVal = "SQLITE_NOLFS"; break; 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_READ: zVal = "SQLITE_IOERR_READ"; break; 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_SHORT_READ: zVal = "SQLITE_IOERR_SHORT_READ"; break; 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_WRITE: zVal = "SQLITE_IOERR_WRITE"; break; 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_FSYNC: zVal = "SQLITE_IOERR_FSYNC"; break; 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_DIR_FSYNC: zVal = "SQLITE_IOERR_DIR_FSYNC"; break; 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_TRUNCATE: zVal = "SQLITE_IOERR_TRUNCATE"; break; 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_FSTAT: zVal = "SQLITE_IOERR_FSTAT"; break; 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_UNLOCK: zVal = "SQLITE_IOERR_UNLOCK"; break; 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_RDLOCK: zVal = "SQLITE_IOERR_RDLOCK"; break; 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_DELETE: zVal = "SQLITE_IOERR_DELETE"; break; 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_BLOCKED: zVal = "SQLITE_IOERR_BLOCKED"; break; 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_NOMEM: zVal = "SQLITE_IOERR_NOMEM"; break; 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_ACCESS: zVal = "SQLITE_IOERR_ACCESS"; break; 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_CHECKRESERVEDLOCK: 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) zVal = "SQLITE_IOERR_CHECKRESERVEDLOCK"; break; 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_LOCK: zVal = "SQLITE_IOERR_LOCK"; break; 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_CLOSE: zVal = "SQLITE_IOERR_CLOSE"; break; 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_DIR_CLOSE: zVal = "SQLITE_IOERR_DIR_CLOSE"; break; 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_SHMOPEN: zVal = "SQLITE_IOERR_SHMOPEN"; break; 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_SHMSIZE: zVal = "SQLITE_IOERR_SHMSIZE"; break; 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_IOERR_SHMLOCK: zVal = "SQLITE_IOERR_SHMLOCK"; break; 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_LOCKED_SHAREDCACHE: zVal = "SQLITE_LOCKED_SHAREDCACHE"; break; 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_BUSY_RECOVERY: zVal = "SQLITE_BUSY_RECOVERY"; break; 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_CANTOPEN_NOTEMPDIR: zVal = "SQLITE_CANTOPEN_NOTEMPDIR"; break; 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) default: { 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", rc); 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) zVal = zBuf; 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, zFormat, zVal); 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Append to a buffer. 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void strappend(char *z, int *pI, const char *zAppend){ 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i = *pI; 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) while( zAppend[0] ){ z[i++] = *(zAppend++); } 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) z[i] = 0; 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *pI = i; 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Close an vfstrace-file. 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceClose(sqlite3_file *pFile){ 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xClose(%s)", pInfo->zVfsName, p->zFName); 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xClose(p->pReal); 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s\n", rc); 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( rc==SQLITE_OK ){ 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_free((void*)p->base.pMethods); 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) p->base.pMethods = 0; 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Read data from an vfstrace-file. 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceRead( 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_file *pFile, 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void *zBuf, 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int iAmt, 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite_int64 iOfst 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)){ 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xRead(%s,n=%d,ofst=%lld)", 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, p->zFName, iAmt, iOfst); 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xRead(p->pReal, zBuf, iAmt, iOfst); 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s\n", rc); 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Write data to an vfstrace-file. 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceWrite( 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_file *pFile, 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const void *zBuf, 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int iAmt, 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite_int64 iOfst 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)){ 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xWrite(%s,n=%d,ofst=%lld)", 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, p->zFName, iAmt, iOfst); 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xWrite(p->pReal, zBuf, iAmt, iOfst); 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s\n", rc); 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Truncate an vfstrace-file. 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceTruncate(sqlite3_file *pFile, sqlite_int64 size){ 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xTruncate(%s,%lld)", pInfo->zVfsName, p->zFName, 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size); 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xTruncate(p->pReal, size); 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, " -> %d\n", rc); 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Sync an vfstrace-file. 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceSync(sqlite3_file *pFile, int flags){ 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i; 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char zBuf[100]; 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memcpy(zBuf, "|0", 3); 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) i = 0; 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( flags & SQLITE_SYNC_FULL ) strappend(zBuf, &i, "|FULL"); 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else if( flags & SQLITE_SYNC_NORMAL ) strappend(zBuf, &i, "|NORMAL"); 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( flags & SQLITE_SYNC_DATAONLY ) strappend(zBuf, &i, "|DATAONLY"); 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( flags & ~(SQLITE_SYNC_FULL|SQLITE_SYNC_DATAONLY) ){ 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_snprintf(sizeof(zBuf)-i, &zBuf[i], "|0x%x", flags); 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xSync(%s,%s)", pInfo->zVfsName, p->zFName, 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &zBuf[1]); 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xSync(p->pReal, flags); 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, " -> %d\n", rc); 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Return the current file-size of an vfstrace-file. 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceFileSize(sqlite3_file *pFile, sqlite_int64 *pSize){ 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xFileSize(%s)", pInfo->zVfsName, p->zFName); 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xFileSize(p->pReal, pSize); 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s,", rc); 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, " size=%lld\n", *pSize); 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Return the name of a lock. 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static const char *lockName(int eLock){ 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *azLockNames[] = { 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "NONE", "SHARED", "RESERVED", "PENDING", "EXCLUSIVE" 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( eLock<0 || eLock>=sizeof(azLockNames)/sizeof(azLockNames[0]) ){ 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return "???"; 3055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }else{ 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return azLockNames[eLock]; 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Lock an vfstrace-file. 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 3135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceLock(sqlite3_file *pFile, int eLock){ 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xLock(%s,%s)", pInfo->zVfsName, p->zFName, 3185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) lockName(eLock)); 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xLock(p->pReal, eLock); 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s\n", rc); 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Unlock an vfstrace-file. 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceUnlock(sqlite3_file *pFile, int eLock){ 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xUnlock(%s,%s)", pInfo->zVfsName, p->zFName, 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) lockName(eLock)); 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xUnlock(p->pReal, eLock); 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s\n", rc); 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Check if another file-handle holds a RESERVED lock on an vfstrace-file. 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceCheckReservedLock(sqlite3_file *pFile, int *pResOut){ 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 3435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 3445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 3455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xCheckReservedLock(%s,%d)", 3465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, p->zFName); 3475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xCheckReservedLock(p->pReal, pResOut); 3485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s", rc); 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, ", out=%d\n", *pResOut); 3505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 3515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 3545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** File control method. For custom operations on an vfstrace-file. 3555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceFileControl(sqlite3_file *pFile, int op, void *pArg){ 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 3595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char zBuf[100]; 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char *zOp; 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch( op ){ 3635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_FCNTL_LOCKSTATE: zOp = "LOCKSTATE"; break; 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_GET_LOCKPROXYFILE: zOp = "GET_LOCKPROXYFILE"; break; 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_SET_LOCKPROXYFILE: zOp = "SET_LOCKPROXYFILE"; break; 3665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_LAST_ERRNO: zOp = "LAST_ERRNO"; break; 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_FCNTL_SIZE_HINT: { 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_snprintf(sizeof(zBuf), zBuf, "SIZE_HINT,%lld", 3695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *(sqlite3_int64*)pArg); 3705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) zOp = zBuf; 3715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 3725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_FCNTL_CHUNK_SIZE: { 3745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_snprintf(sizeof(zBuf), zBuf, "CHUNK_SIZE,%d", *(int*)pArg); 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) zOp = zBuf; 3765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 3775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_FCNTL_FILE_POINTER: zOp = "FILE_POINTER"; break; 3795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case SQLITE_FCNTL_SYNC_OMITTED: zOp = "SYNC_OMITTED"; break; 3805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case 0xca093fa0: zOp = "DB_UNCHANGED"; break; 3815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) default: { 3825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_snprintf(sizeof zBuf, zBuf, "%d", op); 3835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) zOp = zBuf; 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 3855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xFileControl(%s,%s)", 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, p->zFName, zOp); 3895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xFileControl(p->pReal, op, pArg); 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s\n", rc); 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 3955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Return the sector-size in bytes for an vfstrace-file. 3965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 3975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceSectorSize(sqlite3_file *pFile){ 3985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 3995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 4005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 4015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xSectorSize(%s)", pInfo->zVfsName, p->zFName); 4025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xSectorSize(p->pReal); 4035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, " -> %d\n", rc); 4045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 4055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 4085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Return the device characteristic flags supported by an vfstrace-file. 4095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 4105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceDeviceCharacteristics(sqlite3_file *pFile){ 4115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 4125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 4135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 4145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xDeviceCharacteristics(%s)", 4155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, p->zFName); 4165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xDeviceCharacteristics(p->pReal); 4175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, " -> 0x%08x\n", rc); 4185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 4195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 4225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Shared-memory operations. 4235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 4245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceShmLock(sqlite3_file *pFile, int ofst, int n, int flags){ 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 4275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 4285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char zLck[100]; 4295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int i = 0; 4305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memcpy(zLck, "|0", 3); 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( flags & SQLITE_SHM_UNLOCK ) strappend(zLck, &i, "|UNLOCK"); 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( flags & SQLITE_SHM_LOCK ) strappend(zLck, &i, "|LOCK"); 4335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( flags & SQLITE_SHM_SHARED ) strappend(zLck, &i, "|SHARED"); 4345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( flags & SQLITE_SHM_EXCLUSIVE ) strappend(zLck, &i, "|EXCLUSIVE"); 4355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( flags & ~(0xf) ){ 4365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_snprintf(sizeof(zLck)-i, &zLck[i], "|0x%x", flags); 4375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xShmLock(%s,ofst=%d,n=%d,%s)", 4395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, p->zFName, ofst, n, &zLck[1]); 4405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xShmLock(p->pReal, ofst, n, flags); 4415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s\n", rc); 4425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 4435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceShmMap( 4455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_file *pFile, 4465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int iRegion, 4475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int szRegion, 4485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int isWrite, 4495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void volatile **pp 4505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)){ 4515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 4525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 4535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 4545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xShmMap(%s,iRegion=%d,szRegion=%d,isWrite=%d,*)", 4555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, p->zFName, iRegion, szRegion, isWrite); 4565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xShmMap(p->pReal, iRegion, szRegion, isWrite, pp); 4575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s\n", rc); 4585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 4595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void vfstraceShmBarrier(sqlite3_file *pFile){ 4615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 4625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 4635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xShmBarrier(%s)\n", pInfo->zVfsName, p->zFName); 4645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) p->pReal->pMethods->xShmBarrier(p->pReal); 4655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceShmUnmap(sqlite3_file *pFile, int delFlag){ 4675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 4685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = p->pInfo; 4695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 4705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xShmUnmap(%s,delFlag=%d)", 4715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, p->zFName, delFlag); 4725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = p->pReal->pMethods->xShmUnmap(p->pReal, delFlag); 4735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s\n", rc); 4745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 4755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 4805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Open an vfstrace file handle. 4815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 4825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceOpen( 4835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pVfs, 4845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *zName, 4855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_file *pFile, 4865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags, 4875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int *pOutFlags 4885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)){ 4895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 4905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_file *p = (vfstrace_file *)pFile; 4915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 4925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 4935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) p->pInfo = pInfo; 4945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) p->zFName = zName ? fileTail(zName) : "<temp>"; 4955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) p->pReal = (sqlite3_file *)&p[1]; 4965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = pRoot->xOpen(pRoot, zName, p->pReal, flags, pOutFlags); 4975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xOpen(%s,flags=0x%x)", 4985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, p->zFName, flags); 4995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( p->pReal->pMethods ){ 5005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_io_methods *pNew = sqlite3_malloc( sizeof(*pNew) ); 5015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const sqlite3_io_methods *pSub = p->pReal->pMethods; 5025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memset(pNew, 0, sizeof(*pNew)); 5035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->iVersion = pSub->iVersion; 5045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xClose = vfstraceClose; 5055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xRead = vfstraceRead; 5065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xWrite = vfstraceWrite; 5075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xTruncate = vfstraceTruncate; 5085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xSync = vfstraceSync; 5095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xFileSize = vfstraceFileSize; 5105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xLock = vfstraceLock; 5115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xUnlock = vfstraceUnlock; 5125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xCheckReservedLock = vfstraceCheckReservedLock; 5135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xFileControl = vfstraceFileControl; 5145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xSectorSize = vfstraceSectorSize; 5155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xDeviceCharacteristics = vfstraceDeviceCharacteristics; 5165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( pNew->iVersion>=2 ){ 5175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xShmMap = pSub->xShmMap ? vfstraceShmMap : 0; 5185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xShmLock = pSub->xShmLock ? vfstraceShmLock : 0; 5195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xShmBarrier = pSub->xShmBarrier ? vfstraceShmBarrier : 0; 5205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xShmUnmap = pSub->xShmUnmap ? vfstraceShmUnmap : 0; 5215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pFile->pMethods = pNew; 5235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s", rc); 5255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( pOutFlags ){ 5265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, ", outFlags=0x%x\n", *pOutFlags); 5275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }else{ 5285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "\n"); 5295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 5315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 5345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Delete the file located at zPath. If the dirSync argument is true, 5355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** ensure the file-system modifications are synced to disk before 5365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** returning. 5375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 5385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){ 5395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 5405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 5415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 5425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xDelete(\"%s\",%d)", 5435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, zPath, dirSync); 5445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = pRoot->xDelete(pRoot, zPath, dirSync); 5455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s\n", rc); 5465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 5475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 5505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Test for access permissions. Return true if the requested permission 5515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** is available, or false otherwise. 5525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 5535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceAccess( 5545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pVfs, 5555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *zPath, 5565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int flags, 5575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int *pResOut 5585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)){ 5595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 5605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 5615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 5625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xDelete(\"%s\",%d)", 5635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, zPath, flags); 5645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = pRoot->xAccess(pRoot, zPath, flags, pResOut); 5655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s", rc); 5665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, ", out=%d\n", *pResOut); 5675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 5685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 5715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Populate buffer zOut with the full canonical pathname corresponding 5725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** to the pathname in zPath. zOut is guaranteed to point to a buffer 5735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** of at least (DEVSYM_MAX_PATHNAME+1) bytes. 5745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 5755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceFullPathname( 5765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pVfs, 5775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *zPath, 5785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int nOut, 5795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char *zOut 5805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)){ 5815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 5825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 5835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int rc; 5845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xFullPathname(\"%s\")", 5855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, zPath); 5865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) rc = pRoot->xFullPathname(pRoot, zPath, nOut, zOut); 5875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_print_errcode(pInfo, " -> %s", rc); 5885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, ", out=\"%.*s\"\n", nOut, zOut); 5895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return rc; 5905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 5915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 5935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Open the dynamic library located at zPath and return a handle. 5945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 5955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void *vfstraceDlOpen(sqlite3_vfs *pVfs, const char *zPath){ 5965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 5975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 5985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xDlOpen(\"%s\")\n", pInfo->zVfsName, zPath); 5995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return pRoot->xDlOpen(pRoot, zPath); 6005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 6035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Populate the buffer zErrMsg (size nByte bytes) with a human readable 6045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** utf-8 string describing the most recent error encountered associated 6055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** with dynamic libraries. 6065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 6075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void vfstraceDlError(sqlite3_vfs *pVfs, int nByte, char *zErrMsg){ 6085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 6095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 6105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xDlError(%d)", pInfo->zVfsName, nByte); 6115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pRoot->xDlError(pRoot, nByte, zErrMsg); 6125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, " -> \"%s\"", zErrMsg); 6135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 6165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Return a pointer to the symbol zSymbol in the dynamic library pHandle. 6175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 6185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void (*vfstraceDlSym(sqlite3_vfs *pVfs,void *p,const char *zSym))(void){ 6195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 6205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 6215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xDlSym(\"%s\")\n", pInfo->zVfsName, zSym); 6225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return pRoot->xDlSym(pRoot, p, zSym); 6235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 6265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Close the dynamic library handle pHandle. 6275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 6285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static void vfstraceDlClose(sqlite3_vfs *pVfs, void *pHandle){ 6295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 6305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 6315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xDlOpen()\n", pInfo->zVfsName); 6325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pRoot->xDlClose(pRoot, pHandle); 6335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 6365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Populate the buffer pointed to by zBufOut with nByte bytes of 6375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** random data. 6385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 6395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){ 6405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 6415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 6425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.xRandomness(%d)\n", pInfo->zVfsName, nByte); 6435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return pRoot->xRandomness(pRoot, nByte, zBufOut); 6445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 6475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Sleep for nMicro microseconds. Return the number of microseconds 6485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** actually slept. 6495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 6505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceSleep(sqlite3_vfs *pVfs, int nMicro){ 6515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 6525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 6535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return pRoot->xSleep(pRoot, nMicro); 6545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 6575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Return the current time as a Julian Day number in *pTimeOut. 6585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 6595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){ 6605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 6615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 6625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return pRoot->xCurrentTime(pRoot, pTimeOut); 6635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceCurrentTimeInt64(sqlite3_vfs *pVfs, sqlite3_int64 *pTimeOut){ 6655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 6665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 6675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return pRoot->xCurrentTimeInt64(pRoot, pTimeOut); 6685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 6715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Return th3 emost recent error code and message 6725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 6735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceGetLastError(sqlite3_vfs *pVfs, int iErr, char *zErr){ 6745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 6755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 6765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return pRoot->xGetLastError(pRoot, iErr, zErr); 6775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 6805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Override system calls. 6815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 6825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int vfstraceSetSystemCall( 6835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pVfs, 6845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *zName, 6855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_syscall_ptr pFunc 6865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)){ 6875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 6885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 6895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return pRoot->xSetSystemCall(pRoot, zName, pFunc); 6905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static sqlite3_syscall_ptr vfstraceGetSystemCall( 6925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pVfs, 6935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *zName 6945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)){ 6955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 6965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 6975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return pRoot->xGetSystemCall(pRoot, zName); 6985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 6995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static const char *vfstraceNextSystemCall(sqlite3_vfs *pVfs, const char *zName){ 7005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData; 7015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot = pInfo->pRootVfs; 7025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return pRoot->xNextSystemCall(pRoot, zName); 7035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 7045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 7075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Clients invoke this routine to construct a new trace-vfs shim. 7085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** 7095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** Return SQLITE_OK on success. 7105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** 7115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** SQLITE_NOMEM is returned in the case of a memory allocation error. 7125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)** SQLITE_NOTFOUND is returned if zOldVfsName does not exist. 7135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)*/ 7145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int vfstrace_register( 7155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *zTraceName, /* Name of the newly constructed VFS */ 7165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char *zOldVfsName, /* Name of the underlying VFS */ 7175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int (*xOut)(const char*,void*), /* Output routine. ex: fputs */ 7185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void *pOutArg, /* 2nd argument to xOut. ex: stderr */ 7195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int makeDefault /* True to make the new VFS the default */ 7205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)){ 7215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pNew; 7225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sqlite3_vfs *pRoot; 7235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_info *pInfo; 7245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int nName; 7255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int nByte; 7265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 7275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pRoot = sqlite3_vfs_find(zOldVfsName); 7285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( pRoot==0 ) return SQLITE_NOTFOUND; 7295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nName = strlen(zTraceName); 7305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nByte = sizeof(*pNew) + sizeof(*pInfo) + nName + 1; 7315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew = sqlite3_malloc( nByte ); 7325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( pNew==0 ) return SQLITE_NOMEM; 7335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memset(pNew, 0, nByte); 7345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo = (vfstrace_info*)&pNew[1]; 7355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->iVersion = pRoot->iVersion; 7365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->szOsFile = pRoot->szOsFile + sizeof(vfstrace_file); 7375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->mxPathname = pRoot->mxPathname; 7385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->zName = (char*)&pInfo[1]; 7395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memcpy((char*)&pInfo[1], zTraceName, nName+1); 7405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->pAppData = pInfo; 7415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xOpen = vfstraceOpen; 7425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xDelete = vfstraceDelete; 7435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xAccess = vfstraceAccess; 7445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xFullPathname = vfstraceFullPathname; 7455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xDlOpen = pRoot->xDlOpen==0 ? 0 : vfstraceDlOpen; 7465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xDlError = pRoot->xDlError==0 ? 0 : vfstraceDlError; 7475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xDlSym = pRoot->xDlSym==0 ? 0 : vfstraceDlSym; 7485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xDlClose = pRoot->xDlClose==0 ? 0 : vfstraceDlClose; 7495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xRandomness = vfstraceRandomness; 7505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xSleep = vfstraceSleep; 7515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xCurrentTime = vfstraceCurrentTime; 7525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xGetLastError = pRoot->xGetLastError==0 ? 0 : vfstraceGetLastError; 7535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( pNew->iVersion>=2 ){ 7545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xCurrentTimeInt64 = pRoot->xCurrentTimeInt64==0 ? 0 : 7555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstraceCurrentTimeInt64; 7565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if( pNew->iVersion>=3 ){ 7575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xSetSystemCall = pRoot->xSetSystemCall==0 ? 0 : 7585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstraceSetSystemCall; 7595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xGetSystemCall = pRoot->xGetSystemCall==0 ? 0 : 7605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstraceGetSystemCall; 7615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pNew->xNextSystemCall = pRoot->xNextSystemCall==0 ? 0 : 7625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstraceNextSystemCall; 7635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 7655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->pRootVfs = pRoot; 7665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->xOut = xOut; 7675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->pOutArg = pOutArg; 7685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName = pNew->zName; 7695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->pTraceVfs = pNew; 7705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) vfstrace_printf(pInfo, "%s.enabled_for(\"%s\")\n", 7715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pInfo->zVfsName, pRoot->zName); 7725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return sqlite3_vfs_register(pNew, makeDefault); 7735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 774