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author | 2016-09-23 09:21:58 +0000 | |
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committer | 2016-09-23 09:21:58 +0000 | |
commit | 25e4f8ab5acd0ef40feec6767a572bebbbe294b3 (patch) | |
tree | 20197c0e46bb6d260f4a310b6d5dd73b8d826f01 /lib/libsqlite3/src/os.c | |
parent | remove usr.bin/sqlite3, it has moved back to ports (diff) | |
download | wireguard-openbsd-25e4f8ab5acd0ef40feec6767a572bebbbe294b3.tar.xz wireguard-openbsd-25e4f8ab5acd0ef40feec6767a572bebbbe294b3.zip |
remove lib/libsqlite3, it has moved back to ports
Diffstat (limited to 'lib/libsqlite3/src/os.c')
-rw-r--r-- | lib/libsqlite3/src/os.c | 394 |
1 files changed, 0 insertions, 394 deletions
diff --git a/lib/libsqlite3/src/os.c b/lib/libsqlite3/src/os.c deleted file mode 100644 index 2a2cf13c5ee..00000000000 --- a/lib/libsqlite3/src/os.c +++ /dev/null @@ -1,394 +0,0 @@ -/* -** 2005 November 29 -** -** 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 OS interface code that is common to all -** architectures. -*/ -#define _SQLITE_OS_C_ 1 -#include "sqliteInt.h" -#undef _SQLITE_OS_C_ - -/* -** The default SQLite sqlite3_vfs implementations do not allocate -** memory (actually, os_unix.c allocates a small amount of memory -** from within OsOpen()), but some third-party implementations may. -** So we test the effects of a malloc() failing and the sqlite3OsXXX() -** function returning SQLITE_IOERR_NOMEM using the DO_OS_MALLOC_TEST macro. -** -** The following functions are instrumented for malloc() failure -** testing: -** -** sqlite3OsRead() -** sqlite3OsWrite() -** sqlite3OsSync() -** sqlite3OsFileSize() -** sqlite3OsLock() -** sqlite3OsCheckReservedLock() -** sqlite3OsFileControl() -** sqlite3OsShmMap() -** sqlite3OsOpen() -** sqlite3OsDelete() -** sqlite3OsAccess() -** sqlite3OsFullPathname() -** -*/ -#if defined(SQLITE_TEST) -int sqlite3_memdebug_vfs_oom_test = 1; - #define DO_OS_MALLOC_TEST(x) \ - if (sqlite3_memdebug_vfs_oom_test && (!x || !sqlite3IsMemJournal(x))) { \ - void *pTstAlloc = sqlite3Malloc(10); \ - if (!pTstAlloc) return SQLITE_IOERR_NOMEM; \ - sqlite3_free(pTstAlloc); \ - } -#else - #define DO_OS_MALLOC_TEST(x) -#endif - -/* -** The following routines are convenience wrappers around methods -** of the sqlite3_file object. This is mostly just syntactic sugar. All -** of this would be completely automatic if SQLite were coded using -** C++ instead of plain old C. -*/ -int sqlite3OsClose(sqlite3_file *pId){ - int rc = SQLITE_OK; - if( pId->pMethods ){ - rc = pId->pMethods->xClose(pId); - pId->pMethods = 0; - } - return rc; -} -int sqlite3OsRead(sqlite3_file *id, void *pBuf, int amt, i64 offset){ - DO_OS_MALLOC_TEST(id); - return id->pMethods->xRead(id, pBuf, amt, offset); -} -int sqlite3OsWrite(sqlite3_file *id, const void *pBuf, int amt, i64 offset){ - DO_OS_MALLOC_TEST(id); - return id->pMethods->xWrite(id, pBuf, amt, offset); -} -int sqlite3OsTruncate(sqlite3_file *id, i64 size){ - return id->pMethods->xTruncate(id, size); -} -int sqlite3OsSync(sqlite3_file *id, int flags){ - DO_OS_MALLOC_TEST(id); - return id->pMethods->xSync(id, flags); -} -int sqlite3OsFileSize(sqlite3_file *id, i64 *pSize){ - DO_OS_MALLOC_TEST(id); - return id->pMethods->xFileSize(id, pSize); -} -int sqlite3OsLock(sqlite3_file *id, int lockType){ - DO_OS_MALLOC_TEST(id); - return id->pMethods->xLock(id, lockType); -} -int sqlite3OsUnlock(sqlite3_file *id, int lockType){ - return id->pMethods->xUnlock(id, lockType); -} -int sqlite3OsCheckReservedLock(sqlite3_file *id, int *pResOut){ - DO_OS_MALLOC_TEST(id); - return id->pMethods->xCheckReservedLock(id, pResOut); -} - -/* -** Use sqlite3OsFileControl() when we are doing something that might fail -** and we need to know about the failures. Use sqlite3OsFileControlHint() -** when simply tossing information over the wall to the VFS and we do not -** really care if the VFS receives and understands the information since it -** is only a hint and can be safely ignored. The sqlite3OsFileControlHint() -** routine has no return value since the return value would be meaningless. -*/ -int sqlite3OsFileControl(sqlite3_file *id, int op, void *pArg){ -#ifdef SQLITE_TEST - if( op!=SQLITE_FCNTL_COMMIT_PHASETWO ){ - /* Faults are not injected into COMMIT_PHASETWO because, assuming SQLite - ** is using a regular VFS, it is called after the corresponding - ** transaction has been committed. Injecting a fault at this point - ** confuses the test scripts - the COMMIT comand returns SQLITE_NOMEM - ** but the transaction is committed anyway. - ** - ** The core must call OsFileControl() though, not OsFileControlHint(), - ** as if a custom VFS (e.g. zipvfs) returns an error here, it probably - ** means the commit really has failed and an error should be returned - ** to the user. */ - DO_OS_MALLOC_TEST(id); - } -#endif - return id->pMethods->xFileControl(id, op, pArg); -} -void sqlite3OsFileControlHint(sqlite3_file *id, int op, void *pArg){ - (void)id->pMethods->xFileControl(id, op, pArg); -} - -int sqlite3OsSectorSize(sqlite3_file *id){ - int (*xSectorSize)(sqlite3_file*) = id->pMethods->xSectorSize; - return (xSectorSize ? xSectorSize(id) : SQLITE_DEFAULT_SECTOR_SIZE); -} -int sqlite3OsDeviceCharacteristics(sqlite3_file *id){ - return id->pMethods->xDeviceCharacteristics(id); -} -int sqlite3OsShmLock(sqlite3_file *id, int offset, int n, int flags){ - return id->pMethods->xShmLock(id, offset, n, flags); -} -void sqlite3OsShmBarrier(sqlite3_file *id){ - id->pMethods->xShmBarrier(id); -} -int sqlite3OsShmUnmap(sqlite3_file *id, int deleteFlag){ - return id->pMethods->xShmUnmap(id, deleteFlag); -} -int sqlite3OsShmMap( - sqlite3_file *id, /* Database file handle */ - int iPage, - int pgsz, - int bExtend, /* True to extend file if necessary */ - void volatile **pp /* OUT: Pointer to mapping */ -){ - DO_OS_MALLOC_TEST(id); - return id->pMethods->xShmMap(id, iPage, pgsz, bExtend, pp); -} - -#if SQLITE_MAX_MMAP_SIZE>0 -/* The real implementation of xFetch and xUnfetch */ -int sqlite3OsFetch(sqlite3_file *id, i64 iOff, int iAmt, void **pp){ - DO_OS_MALLOC_TEST(id); - return id->pMethods->xFetch(id, iOff, iAmt, pp); -} -int sqlite3OsUnfetch(sqlite3_file *id, i64 iOff, void *p){ - return id->pMethods->xUnfetch(id, iOff, p); -} -#else -/* No-op stubs to use when memory-mapped I/O is disabled */ -int sqlite3OsFetch(sqlite3_file *id, i64 iOff, int iAmt, void **pp){ - *pp = 0; - return SQLITE_OK; -} -int sqlite3OsUnfetch(sqlite3_file *id, i64 iOff, void *p){ - return SQLITE_OK; -} -#endif - -/* -** The next group of routines are convenience wrappers around the -** VFS methods. -*/ -int sqlite3OsOpen( - sqlite3_vfs *pVfs, - const char *zPath, - sqlite3_file *pFile, - int flags, - int *pFlagsOut -){ - int rc; - DO_OS_MALLOC_TEST(0); - /* 0x87f7f is a mask of SQLITE_OPEN_ flags that are valid to be passed - ** down into the VFS layer. Some SQLITE_OPEN_ flags (for example, - ** SQLITE_OPEN_FULLMUTEX or SQLITE_OPEN_SHAREDCACHE) are blocked before - ** reaching the VFS. */ - rc = pVfs->xOpen(pVfs, zPath, pFile, flags & 0x87f7f, pFlagsOut); - assert( rc==SQLITE_OK || pFile->pMethods==0 ); - return rc; -} -int sqlite3OsDelete(sqlite3_vfs *pVfs, const char *zPath, int dirSync){ - DO_OS_MALLOC_TEST(0); - assert( dirSync==0 || dirSync==1 ); - return pVfs->xDelete(pVfs, zPath, dirSync); -} -int sqlite3OsAccess( - sqlite3_vfs *pVfs, - const char *zPath, - int flags, - int *pResOut -){ - DO_OS_MALLOC_TEST(0); - return pVfs->xAccess(pVfs, zPath, flags, pResOut); -} -int sqlite3OsFullPathname( - sqlite3_vfs *pVfs, - const char *zPath, - int nPathOut, - char *zPathOut -){ - DO_OS_MALLOC_TEST(0); - zPathOut[0] = 0; - return pVfs->xFullPathname(pVfs, zPath, nPathOut, zPathOut); -} -#ifndef SQLITE_OMIT_LOAD_EXTENSION -void *sqlite3OsDlOpen(sqlite3_vfs *pVfs, const char *zPath){ - return pVfs->xDlOpen(pVfs, zPath); -} -void sqlite3OsDlError(sqlite3_vfs *pVfs, int nByte, char *zBufOut){ - pVfs->xDlError(pVfs, nByte, zBufOut); -} -void (*sqlite3OsDlSym(sqlite3_vfs *pVfs, void *pHdle, const char *zSym))(void){ - return pVfs->xDlSym(pVfs, pHdle, zSym); -} -void sqlite3OsDlClose(sqlite3_vfs *pVfs, void *pHandle){ - pVfs->xDlClose(pVfs, pHandle); -} -#endif /* SQLITE_OMIT_LOAD_EXTENSION */ -int sqlite3OsRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){ - return pVfs->xRandomness(pVfs, nByte, zBufOut); -} -int sqlite3OsSleep(sqlite3_vfs *pVfs, int nMicro){ - return pVfs->xSleep(pVfs, nMicro); -} -int sqlite3OsCurrentTimeInt64(sqlite3_vfs *pVfs, sqlite3_int64 *pTimeOut){ - int rc; - /* IMPLEMENTATION-OF: R-49045-42493 SQLite will use the xCurrentTimeInt64() - ** method to get the current date and time if that method is available - ** (if iVersion is 2 or greater and the function pointer is not NULL) and - ** will fall back to xCurrentTime() if xCurrentTimeInt64() is - ** unavailable. - */ - if( pVfs->iVersion>=2 && pVfs->xCurrentTimeInt64 ){ - rc = pVfs->xCurrentTimeInt64(pVfs, pTimeOut); - }else{ - double r; - rc = pVfs->xCurrentTime(pVfs, &r); - *pTimeOut = (sqlite3_int64)(r*86400000.0); - } - return rc; -} - -int sqlite3OsOpenMalloc( - sqlite3_vfs *pVfs, - const char *zFile, - sqlite3_file **ppFile, - int flags, - int *pOutFlags -){ - int rc = SQLITE_NOMEM; - sqlite3_file *pFile; - pFile = (sqlite3_file *)sqlite3MallocZero(pVfs->szOsFile); - if( pFile ){ - rc = sqlite3OsOpen(pVfs, zFile, pFile, flags, pOutFlags); - if( rc!=SQLITE_OK ){ - sqlite3_free(pFile); - }else{ - *ppFile = pFile; - } - } - return rc; -} -int sqlite3OsCloseFree(sqlite3_file *pFile){ - int rc = SQLITE_OK; - assert( pFile ); - rc = sqlite3OsClose(pFile); - sqlite3_free(pFile); - return rc; -} - -/* -** This function is a wrapper around the OS specific implementation of -** sqlite3_os_init(). The purpose of the wrapper is to provide the -** ability to simulate a malloc failure, so that the handling of an -** error in sqlite3_os_init() by the upper layers can be tested. -*/ -int sqlite3OsInit(void){ - void *p = sqlite3_malloc(10); - if( p==0 ) return SQLITE_NOMEM; - sqlite3_free(p); - return sqlite3_os_init(); -} - -/* -** The list of all registered VFS implementations. -*/ -static sqlite3_vfs * SQLITE_WSD vfsList = 0; -#define vfsList GLOBAL(sqlite3_vfs *, vfsList) - -/* -** Locate a VFS by name. If no name is given, simply return the -** first VFS on the list. -*/ -sqlite3_vfs *sqlite3_vfs_find(const char *zVfs){ - sqlite3_vfs *pVfs = 0; -#if SQLITE_THREADSAFE - sqlite3_mutex *mutex; -#endif -#ifndef SQLITE_OMIT_AUTOINIT - int rc = sqlite3_initialize(); - if( rc ) return 0; -#endif -#if SQLITE_THREADSAFE - mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER); -#endif - sqlite3_mutex_enter(mutex); - for(pVfs = vfsList; pVfs; pVfs=pVfs->pNext){ - if( zVfs==0 ) break; - if( strcmp(zVfs, pVfs->zName)==0 ) break; - } - sqlite3_mutex_leave(mutex); - return pVfs; -} - -/* -** Unlink a VFS from the linked list -*/ -static void vfsUnlink(sqlite3_vfs *pVfs){ - assert( sqlite3_mutex_held(sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER)) ); - if( pVfs==0 ){ - /* No-op */ - }else if( vfsList==pVfs ){ - vfsList = pVfs->pNext; - }else if( vfsList ){ - sqlite3_vfs *p = vfsList; - while( p->pNext && p->pNext!=pVfs ){ - p = p->pNext; - } - if( p->pNext==pVfs ){ - p->pNext = pVfs->pNext; - } - } -} - -/* -** Register a VFS with the system. It is harmless to register the same -** VFS multiple times. The new VFS becomes the default if makeDflt is -** true. -*/ -int sqlite3_vfs_register(sqlite3_vfs *pVfs, int makeDflt){ - MUTEX_LOGIC(sqlite3_mutex *mutex;) -#ifndef SQLITE_OMIT_AUTOINIT - int rc = sqlite3_initialize(); - if( rc ) return rc; -#endif -#ifdef SQLITE_ENABLE_API_ARMOR - if( pVfs==0 ) return SQLITE_MISUSE_BKPT; -#endif - - MUTEX_LOGIC( mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER); ) - sqlite3_mutex_enter(mutex); - vfsUnlink(pVfs); - if( makeDflt || vfsList==0 ){ - pVfs->pNext = vfsList; - vfsList = pVfs; - }else{ - pVfs->pNext = vfsList->pNext; - vfsList->pNext = pVfs; - } - assert(vfsList); - sqlite3_mutex_leave(mutex); - return SQLITE_OK; -} - -/* -** Unregister a VFS so that it is no longer accessible. -*/ -int sqlite3_vfs_unregister(sqlite3_vfs *pVfs){ -#if SQLITE_THREADSAFE - sqlite3_mutex *mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER); -#endif - sqlite3_mutex_enter(mutex); - vfsUnlink(pVfs); - sqlite3_mutex_leave(mutex); - return SQLITE_OK; -} |