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Diffstat (limited to 'lib/libsqlite3/src/test_devsym.c')
| -rw-r--r-- | lib/libsqlite3/src/test_devsym.c | 398 |
1 files changed, 0 insertions, 398 deletions
diff --git a/lib/libsqlite3/src/test_devsym.c b/lib/libsqlite3/src/test_devsym.c deleted file mode 100644 index 21f0f684d86..00000000000 --- a/lib/libsqlite3/src/test_devsym.c +++ /dev/null @@ -1,398 +0,0 @@ -/* -** 2008 Jan 22 -** -** The author disclaims copyright to this source code. In place of -** a legal notice, here is a blessing: -** -** May you do good and not evil. -** May you find forgiveness for yourself and forgive others. -** May you share freely, never taking more than you give. -** -****************************************************************************** -** -** This file contains code that modified the OS layer in order to simulate -** different device types (by overriding the return values of the -** xDeviceCharacteristics() and xSectorSize() methods). -*/ -#if SQLITE_TEST /* This file is used for testing only */ - -#include "sqlite3.h" -#include "sqliteInt.h" - -/* -** Maximum pathname length supported by the devsym backend. -*/ -#define DEVSYM_MAX_PATHNAME 512 - -/* -** Name used to identify this VFS. -*/ -#define DEVSYM_VFS_NAME "devsym" - -typedef struct devsym_file devsym_file; -struct devsym_file { - sqlite3_file base; - sqlite3_file *pReal; -}; - -/* -** Method declarations for devsym_file. -*/ -static int devsymClose(sqlite3_file*); -static int devsymRead(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst); -static int devsymWrite(sqlite3_file*,const void*,int iAmt, sqlite3_int64 iOfst); -static int devsymTruncate(sqlite3_file*, sqlite3_int64 size); -static int devsymSync(sqlite3_file*, int flags); -static int devsymFileSize(sqlite3_file*, sqlite3_int64 *pSize); -static int devsymLock(sqlite3_file*, int); -static int devsymUnlock(sqlite3_file*, int); -static int devsymCheckReservedLock(sqlite3_file*, int *); -static int devsymFileControl(sqlite3_file*, int op, void *pArg); -static int devsymSectorSize(sqlite3_file*); -static int devsymDeviceCharacteristics(sqlite3_file*); -static int devsymShmLock(sqlite3_file*,int,int,int); -static int devsymShmMap(sqlite3_file*,int,int,int, void volatile **); -static void devsymShmBarrier(sqlite3_file*); -static int devsymShmUnmap(sqlite3_file*,int); - -/* -** Method declarations for devsym_vfs. -*/ -static int devsymOpen(sqlite3_vfs*, const char *, sqlite3_file*, int , int *); -static int devsymDelete(sqlite3_vfs*, const char *zName, int syncDir); -static int devsymAccess(sqlite3_vfs*, const char *zName, int flags, int *); -static int devsymFullPathname(sqlite3_vfs*, const char *zName, int, char *zOut); -#ifndef SQLITE_OMIT_LOAD_EXTENSION -static void *devsymDlOpen(sqlite3_vfs*, const char *zFilename); -static void devsymDlError(sqlite3_vfs*, int nByte, char *zErrMsg); -static void (*devsymDlSym(sqlite3_vfs*,void*, const char *zSymbol))(void); -static void devsymDlClose(sqlite3_vfs*, void*); -#endif /* SQLITE_OMIT_LOAD_EXTENSION */ -static int devsymRandomness(sqlite3_vfs*, int nByte, char *zOut); -static int devsymSleep(sqlite3_vfs*, int microseconds); -static int devsymCurrentTime(sqlite3_vfs*, double*); - -static sqlite3_vfs devsym_vfs = { - 2, /* iVersion */ - sizeof(devsym_file), /* szOsFile */ - DEVSYM_MAX_PATHNAME, /* mxPathname */ - 0, /* pNext */ - DEVSYM_VFS_NAME, /* zName */ - 0, /* pAppData */ - devsymOpen, /* xOpen */ - devsymDelete, /* xDelete */ - devsymAccess, /* xAccess */ - devsymFullPathname, /* xFullPathname */ -#ifndef SQLITE_OMIT_LOAD_EXTENSION - devsymDlOpen, /* xDlOpen */ - devsymDlError, /* xDlError */ - devsymDlSym, /* xDlSym */ - devsymDlClose, /* xDlClose */ -#else - 0, /* xDlOpen */ - 0, /* xDlError */ - 0, /* xDlSym */ - 0, /* xDlClose */ -#endif /* SQLITE_OMIT_LOAD_EXTENSION */ - devsymRandomness, /* xRandomness */ - devsymSleep, /* xSleep */ - devsymCurrentTime, /* xCurrentTime */ - 0, /* xGetLastError */ - 0 /* xCurrentTimeInt64 */ -}; - -static sqlite3_io_methods devsym_io_methods = { - 2, /* iVersion */ - devsymClose, /* xClose */ - devsymRead, /* xRead */ - devsymWrite, /* xWrite */ - devsymTruncate, /* xTruncate */ - devsymSync, /* xSync */ - devsymFileSize, /* xFileSize */ - devsymLock, /* xLock */ - devsymUnlock, /* xUnlock */ - devsymCheckReservedLock, /* xCheckReservedLock */ - devsymFileControl, /* xFileControl */ - devsymSectorSize, /* xSectorSize */ - devsymDeviceCharacteristics, /* xDeviceCharacteristics */ - devsymShmMap, /* xShmMap */ - devsymShmLock, /* xShmLock */ - devsymShmBarrier, /* xShmBarrier */ - devsymShmUnmap /* xShmUnmap */ -}; - -struct DevsymGlobal { - sqlite3_vfs *pVfs; - int iDeviceChar; - int iSectorSize; -}; -struct DevsymGlobal g = {0, 0, 512}; - -/* -** Close an devsym-file. -*/ -static int devsymClose(sqlite3_file *pFile){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsClose(p->pReal); -} - -/* -** Read data from an devsym-file. -*/ -static int devsymRead( - sqlite3_file *pFile, - void *zBuf, - int iAmt, - sqlite_int64 iOfst -){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsRead(p->pReal, zBuf, iAmt, iOfst); -} - -/* -** Write data to an devsym-file. -*/ -static int devsymWrite( - sqlite3_file *pFile, - const void *zBuf, - int iAmt, - sqlite_int64 iOfst -){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsWrite(p->pReal, zBuf, iAmt, iOfst); -} - -/* -** Truncate an devsym-file. -*/ -static int devsymTruncate(sqlite3_file *pFile, sqlite_int64 size){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsTruncate(p->pReal, size); -} - -/* -** Sync an devsym-file. -*/ -static int devsymSync(sqlite3_file *pFile, int flags){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsSync(p->pReal, flags); -} - -/* -** Return the current file-size of an devsym-file. -*/ -static int devsymFileSize(sqlite3_file *pFile, sqlite_int64 *pSize){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsFileSize(p->pReal, pSize); -} - -/* -** Lock an devsym-file. -*/ -static int devsymLock(sqlite3_file *pFile, int eLock){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsLock(p->pReal, eLock); -} - -/* -** Unlock an devsym-file. -*/ -static int devsymUnlock(sqlite3_file *pFile, int eLock){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsUnlock(p->pReal, eLock); -} - -/* -** Check if another file-handle holds a RESERVED lock on an devsym-file. -*/ -static int devsymCheckReservedLock(sqlite3_file *pFile, int *pResOut){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsCheckReservedLock(p->pReal, pResOut); -} - -/* -** File control method. For custom operations on an devsym-file. -*/ -static int devsymFileControl(sqlite3_file *pFile, int op, void *pArg){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsFileControl(p->pReal, op, pArg); -} - -/* -** Return the sector-size in bytes for an devsym-file. -*/ -static int devsymSectorSize(sqlite3_file *pFile){ - return g.iSectorSize; -} - -/* -** Return the device characteristic flags supported by an devsym-file. -*/ -static int devsymDeviceCharacteristics(sqlite3_file *pFile){ - return g.iDeviceChar; -} - -/* -** Shared-memory methods are all pass-thrus. -*/ -static int devsymShmLock(sqlite3_file *pFile, int ofst, int n, int flags){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsShmLock(p->pReal, ofst, n, flags); -} -static int devsymShmMap( - sqlite3_file *pFile, - int iRegion, - int szRegion, - int isWrite, - void volatile **pp -){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsShmMap(p->pReal, iRegion, szRegion, isWrite, pp); -} -static void devsymShmBarrier(sqlite3_file *pFile){ - devsym_file *p = (devsym_file *)pFile; - sqlite3OsShmBarrier(p->pReal); -} -static int devsymShmUnmap(sqlite3_file *pFile, int delFlag){ - devsym_file *p = (devsym_file *)pFile; - return sqlite3OsShmUnmap(p->pReal, delFlag); -} - - - -/* -** Open an devsym file handle. -*/ -static int devsymOpen( - sqlite3_vfs *pVfs, - const char *zName, - sqlite3_file *pFile, - int flags, - int *pOutFlags -){ - int rc; - devsym_file *p = (devsym_file *)pFile; - p->pReal = (sqlite3_file *)&p[1]; - rc = sqlite3OsOpen(g.pVfs, zName, p->pReal, flags, pOutFlags); - if( p->pReal->pMethods ){ - pFile->pMethods = &devsym_io_methods; - } - return rc; -} - -/* -** Delete the file located at zPath. If the dirSync argument is true, -** ensure the file-system modifications are synced to disk before -** returning. -*/ -static int devsymDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){ - return sqlite3OsDelete(g.pVfs, zPath, dirSync); -} - -/* -** Test for access permissions. Return true if the requested permission -** is available, or false otherwise. -*/ -static int devsymAccess( - sqlite3_vfs *pVfs, - const char *zPath, - int flags, - int *pResOut -){ - return sqlite3OsAccess(g.pVfs, zPath, flags, pResOut); -} - -/* -** Populate buffer zOut with the full canonical pathname corresponding -** to the pathname in zPath. zOut is guaranteed to point to a buffer -** of at least (DEVSYM_MAX_PATHNAME+1) bytes. -*/ -static int devsymFullPathname( - sqlite3_vfs *pVfs, - const char *zPath, - int nOut, - char *zOut -){ - return sqlite3OsFullPathname(g.pVfs, zPath, nOut, zOut); -} - -#ifndef SQLITE_OMIT_LOAD_EXTENSION -/* -** Open the dynamic library located at zPath and return a handle. -*/ -static void *devsymDlOpen(sqlite3_vfs *pVfs, const char *zPath){ - return sqlite3OsDlOpen(g.pVfs, zPath); -} - -/* -** Populate the buffer zErrMsg (size nByte bytes) with a human readable -** utf-8 string describing the most recent error encountered associated -** with dynamic libraries. -*/ -static void devsymDlError(sqlite3_vfs *pVfs, int nByte, char *zErrMsg){ - sqlite3OsDlError(g.pVfs, nByte, zErrMsg); -} - -/* -** Return a pointer to the symbol zSymbol in the dynamic library pHandle. -*/ -static void (*devsymDlSym(sqlite3_vfs *pVfs, void *p, const char *zSym))(void){ - return sqlite3OsDlSym(g.pVfs, p, zSym); -} - -/* -** Close the dynamic library handle pHandle. -*/ -static void devsymDlClose(sqlite3_vfs *pVfs, void *pHandle){ - sqlite3OsDlClose(g.pVfs, pHandle); -} -#endif /* SQLITE_OMIT_LOAD_EXTENSION */ - -/* -** Populate the buffer pointed to by zBufOut with nByte bytes of -** random data. -*/ -static int devsymRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){ - return sqlite3OsRandomness(g.pVfs, nByte, zBufOut); -} - -/* -** Sleep for nMicro microseconds. Return the number of microseconds -** actually slept. -*/ -static int devsymSleep(sqlite3_vfs *pVfs, int nMicro){ - return sqlite3OsSleep(g.pVfs, nMicro); -} - -/* -** Return the current time as a Julian Day number in *pTimeOut. -*/ -static int devsymCurrentTime(sqlite3_vfs *pVfs, double *pTimeOut){ - return g.pVfs->xCurrentTime(g.pVfs, pTimeOut); -} - - -/* -** This procedure registers the devsym vfs with SQLite. If the argument is -** true, the devsym vfs becomes the new default vfs. It is the only publicly -** available function in this file. -*/ -void devsym_register(int iDeviceChar, int iSectorSize){ - if( g.pVfs==0 ){ - g.pVfs = sqlite3_vfs_find(0); - devsym_vfs.szOsFile += g.pVfs->szOsFile; - sqlite3_vfs_register(&devsym_vfs, 0); - } - if( iDeviceChar>=0 ){ - g.iDeviceChar = iDeviceChar; - }else{ - g.iDeviceChar = 0; - } - if( iSectorSize>=0 ){ - g.iSectorSize = iSectorSize; - }else{ - g.iSectorSize = 512; - } -} - -#endif |