diff options
Diffstat (limited to 'chromium/third_party/sqlite/sqlite-src-3240000/ext/lsm1/lsm_unix.c')
| -rw-r--r-- | chromium/third_party/sqlite/sqlite-src-3240000/ext/lsm1/lsm_unix.c | 746 |
1 files changed, 0 insertions, 746 deletions
diff --git a/chromium/third_party/sqlite/sqlite-src-3240000/ext/lsm1/lsm_unix.c b/chromium/third_party/sqlite/sqlite-src-3240000/ext/lsm1/lsm_unix.c deleted file mode 100644 index 22240771ea6..00000000000 --- a/chromium/third_party/sqlite/sqlite-src-3240000/ext/lsm1/lsm_unix.c +++ /dev/null @@ -1,746 +0,0 @@ -/* -** 2011-12-03 -** -** 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. -** -************************************************************************* -** -** Unix-specific run-time environment implementation for LSM. -*/ - -#ifndef _WIN32 - -#if defined(__GNUC__) || defined(__TINYC__) -/* workaround for ftruncate() visibility on gcc. */ -# ifndef _XOPEN_SOURCE -# define _XOPEN_SOURCE 500 -# endif -#endif - -#include <unistd.h> -#include <sys/types.h> - -#include <sys/stat.h> -#include <fcntl.h> -#include <assert.h> -#include <string.h> - -#include <stdlib.h> -#include <stdarg.h> -#include <stdio.h> -#include <ctype.h> - -#include <unistd.h> -#include <errno.h> - -#include <sys/mman.h> -#include "lsmInt.h" - -/* There is no fdatasync() call on Android */ -#ifdef __ANDROID__ -# define fdatasync(x) fsync(x) -#endif - -/* -** An open file is an instance of the following object -*/ -typedef struct PosixFile PosixFile; -struct PosixFile { - lsm_env *pEnv; /* The run-time environment */ - const char *zName; /* Full path to file */ - int fd; /* The open file descriptor */ - int shmfd; /* Shared memory file-descriptor */ - void *pMap; /* Pointer to mapping of file fd */ - off_t nMap; /* Size of mapping at pMap in bytes */ - int nShm; /* Number of entries in array apShm[] */ - void **apShm; /* Array of 32K shared memory segments */ -}; - -static char *posixShmFile(PosixFile *p){ - char *zShm; - int nName = strlen(p->zName); - zShm = (char *)lsmMalloc(p->pEnv, nName+4+1); - if( zShm ){ - memcpy(zShm, p->zName, nName); - memcpy(&zShm[nName], "-shm", 5); - } - return zShm; -} - -static int lsmPosixOsOpen( - lsm_env *pEnv, - const char *zFile, - int flags, - lsm_file **ppFile -){ - int rc = LSM_OK; - PosixFile *p; - - p = lsm_malloc(pEnv, sizeof(PosixFile)); - if( p==0 ){ - rc = LSM_NOMEM; - }else{ - int bReadonly = (flags & LSM_OPEN_READONLY); - int oflags = (bReadonly ? O_RDONLY : (O_RDWR|O_CREAT)); - memset(p, 0, sizeof(PosixFile)); - p->zName = zFile; - p->pEnv = pEnv; - p->fd = open(zFile, oflags, 0644); - if( p->fd<0 ){ - lsm_free(pEnv, p); - p = 0; - if( errno==ENOENT ){ - rc = lsmErrorBkpt(LSM_IOERR_NOENT); - }else{ - rc = LSM_IOERR_BKPT; - } - } - } - - *ppFile = (lsm_file *)p; - return rc; -} - -static int lsmPosixOsWrite( - lsm_file *pFile, /* File to write to */ - lsm_i64 iOff, /* Offset to write to */ - void *pData, /* Write data from this buffer */ - int nData /* Bytes of data to write */ -){ - int rc = LSM_OK; - PosixFile *p = (PosixFile *)pFile; - off_t offset; - - offset = lseek(p->fd, (off_t)iOff, SEEK_SET); - if( offset!=iOff ){ - rc = LSM_IOERR_BKPT; - }else{ - ssize_t prc = write(p->fd, pData, (size_t)nData); - if( prc<0 ) rc = LSM_IOERR_BKPT; - } - - return rc; -} - -static int lsmPosixOsTruncate( - lsm_file *pFile, /* File to write to */ - lsm_i64 nSize /* Size to truncate file to */ -){ - PosixFile *p = (PosixFile *)pFile; - int rc = LSM_OK; /* Return code */ - int prc; /* Posix Return Code */ - struct stat sStat; /* Result of fstat() invocation */ - - prc = fstat(p->fd, &sStat); - if( prc==0 && sStat.st_size>nSize ){ - prc = ftruncate(p->fd, (off_t)nSize); - } - if( prc<0 ) rc = LSM_IOERR_BKPT; - - return rc; -} - -static int lsmPosixOsRead( - lsm_file *pFile, /* File to read from */ - lsm_i64 iOff, /* Offset to read from */ - void *pData, /* Read data into this buffer */ - int nData /* Bytes of data to read */ -){ - int rc = LSM_OK; - PosixFile *p = (PosixFile *)pFile; - off_t offset; - - offset = lseek(p->fd, (off_t)iOff, SEEK_SET); - if( offset!=iOff ){ - rc = LSM_IOERR_BKPT; - }else{ - ssize_t prc = read(p->fd, pData, (size_t)nData); - if( prc<0 ){ - rc = LSM_IOERR_BKPT; - }else if( prc<nData ){ - memset(&((u8 *)pData)[prc], 0, nData - prc); - } - - } - - return rc; -} - -static int lsmPosixOsSync(lsm_file *pFile){ - int rc = LSM_OK; - -#ifndef LSM_NO_SYNC - PosixFile *p = (PosixFile *)pFile; - int prc = 0; - - if( p->pMap ){ - prc = msync(p->pMap, p->nMap, MS_SYNC); - } - if( prc==0 ) prc = fdatasync(p->fd); - if( prc<0 ) rc = LSM_IOERR_BKPT; -#else - (void)pFile; -#endif - - return rc; -} - -static int lsmPosixOsSectorSize(lsm_file *pFile){ - return 512; -} - -static int lsmPosixOsRemap( - lsm_file *pFile, - lsm_i64 iMin, - void **ppOut, - lsm_i64 *pnOut -){ - off_t iSz; - int prc; - PosixFile *p = (PosixFile *)pFile; - struct stat buf; - - /* If the file is between 0 and 2MB in size, extend it in chunks of 256K. - ** Thereafter, in chunks of 1MB at a time. */ - const int aIncrSz[] = {256*1024, 1024*1024}; - int nIncrSz = aIncrSz[iMin>(2*1024*1024)]; - - if( p->pMap ){ - munmap(p->pMap, p->nMap); - *ppOut = p->pMap = 0; - *pnOut = p->nMap = 0; - } - - if( iMin>=0 ){ - memset(&buf, 0, sizeof(buf)); - prc = fstat(p->fd, &buf); - if( prc!=0 ) return LSM_IOERR_BKPT; - iSz = buf.st_size; - if( iSz<iMin ){ - iSz = ((iMin + nIncrSz-1) / nIncrSz) * nIncrSz; - prc = ftruncate(p->fd, iSz); - if( prc!=0 ) return LSM_IOERR_BKPT; - } - - p->pMap = mmap(0, iSz, PROT_READ|PROT_WRITE, MAP_SHARED, p->fd, 0); - p->nMap = iSz; - } - - *ppOut = p->pMap; - *pnOut = p->nMap; - return LSM_OK; -} - -static int lsmPosixOsFullpath( - lsm_env *pEnv, - const char *zName, - char *zOut, - int *pnOut -){ - int nBuf = *pnOut; - int nReq; - - if( zName[0]!='/' ){ - char *z; - char *zTmp; - int nTmp = 512; - zTmp = lsmMalloc(pEnv, nTmp); - while( zTmp ){ - z = getcwd(zTmp, nTmp); - if( z || errno!=ERANGE ) break; - nTmp = nTmp*2; - zTmp = lsmReallocOrFree(pEnv, zTmp, nTmp); - } - if( zTmp==0 ) return LSM_NOMEM_BKPT; - if( z==0 ) return LSM_IOERR_BKPT; - assert( z==zTmp ); - - nTmp = strlen(zTmp); - nReq = nTmp + 1 + strlen(zName) + 1; - if( nReq<=nBuf ){ - memcpy(zOut, zTmp, nTmp); - zOut[nTmp] = '/'; - memcpy(&zOut[nTmp+1], zName, strlen(zName)+1); - } - lsmFree(pEnv, zTmp); - }else{ - nReq = strlen(zName)+1; - if( nReq<=nBuf ){ - memcpy(zOut, zName, strlen(zName)+1); - } - } - - *pnOut = nReq; - return LSM_OK; -} - -static int lsmPosixOsFileid( - lsm_file *pFile, - void *pBuf, - int *pnBuf -){ - int prc; - int nBuf; - int nReq; - PosixFile *p = (PosixFile *)pFile; - struct stat buf; - - nBuf = *pnBuf; - nReq = (sizeof(buf.st_dev) + sizeof(buf.st_ino)); - *pnBuf = nReq; - if( nReq>nBuf ) return LSM_OK; - - memset(&buf, 0, sizeof(buf)); - prc = fstat(p->fd, &buf); - if( prc!=0 ) return LSM_IOERR_BKPT; - - memcpy(pBuf, &buf.st_dev, sizeof(buf.st_dev)); - memcpy(&(((u8 *)pBuf)[sizeof(buf.st_dev)]), &buf.st_ino, sizeof(buf.st_ino)); - return LSM_OK; -} - -static int lsmPosixOsUnlink(lsm_env *pEnv, const char *zFile){ - int prc = unlink(zFile); - return prc ? LSM_IOERR_BKPT : LSM_OK; -} - -static int lsmPosixOsLock(lsm_file *pFile, int iLock, int eType){ - int rc = LSM_OK; - PosixFile *p = (PosixFile *)pFile; - static const short aType[3] = { F_UNLCK, F_RDLCK, F_WRLCK }; - struct flock lock; - - assert( aType[LSM_LOCK_UNLOCK]==F_UNLCK ); - assert( aType[LSM_LOCK_SHARED]==F_RDLCK ); - assert( aType[LSM_LOCK_EXCL]==F_WRLCK ); - assert( eType>=0 && eType<array_size(aType) ); - assert( iLock>0 && iLock<=32 ); - - memset(&lock, 0, sizeof(lock)); - lock.l_whence = SEEK_SET; - lock.l_len = 1; - lock.l_type = aType[eType]; - lock.l_start = (4096-iLock); - - if( fcntl(p->fd, F_SETLK, &lock) ){ - int e = errno; - if( e==EACCES || e==EAGAIN ){ - rc = LSM_BUSY; - }else{ - rc = LSM_IOERR_BKPT; - } - } - - return rc; -} - -static int lsmPosixOsTestLock(lsm_file *pFile, int iLock, int nLock, int eType){ - int rc = LSM_OK; - PosixFile *p = (PosixFile *)pFile; - static const short aType[3] = { 0, F_RDLCK, F_WRLCK }; - struct flock lock; - - assert( eType==LSM_LOCK_SHARED || eType==LSM_LOCK_EXCL ); - assert( aType[LSM_LOCK_SHARED]==F_RDLCK ); - assert( aType[LSM_LOCK_EXCL]==F_WRLCK ); - assert( eType>=0 && eType<array_size(aType) ); - assert( iLock>0 && iLock<=32 ); - - memset(&lock, 0, sizeof(lock)); - lock.l_whence = SEEK_SET; - lock.l_len = nLock; - lock.l_type = aType[eType]; - lock.l_start = (4096-iLock-nLock+1); - - if( fcntl(p->fd, F_GETLK, &lock) ){ - rc = LSM_IOERR_BKPT; - }else if( lock.l_type!=F_UNLCK ){ - rc = LSM_BUSY; - } - - return rc; -} - -static int lsmPosixOsShmMap(lsm_file *pFile, int iChunk, int sz, void **ppShm){ - PosixFile *p = (PosixFile *)pFile; - - *ppShm = 0; - assert( sz==LSM_SHM_CHUNK_SIZE ); - if( iChunk>=p->nShm ){ - int i; - void **apNew; - int nNew = iChunk+1; - off_t nReq = nNew * LSM_SHM_CHUNK_SIZE; - struct stat sStat; - - /* If the shared-memory file has not been opened, open it now. */ - if( p->shmfd<=0 ){ - char *zShm = posixShmFile(p); - if( !zShm ) return LSM_NOMEM_BKPT; - p->shmfd = open(zShm, O_RDWR|O_CREAT, 0644); - lsmFree(p->pEnv, zShm); - if( p->shmfd<0 ){ - return LSM_IOERR_BKPT; - } - } - - /* If the shared-memory file is not large enough to contain the - ** requested chunk, cause it to grow. */ - if( fstat(p->shmfd, &sStat) ){ - return LSM_IOERR_BKPT; - } - if( sStat.st_size<nReq ){ - if( ftruncate(p->shmfd, nReq) ){ - return LSM_IOERR_BKPT; - } - } - - apNew = (void **)lsmRealloc(p->pEnv, p->apShm, sizeof(void *) * nNew); - if( !apNew ) return LSM_NOMEM_BKPT; - for(i=p->nShm; i<nNew; i++){ - apNew[i] = 0; - } - p->apShm = apNew; - p->nShm = nNew; - } - - if( p->apShm[iChunk]==0 ){ - p->apShm[iChunk] = mmap(0, LSM_SHM_CHUNK_SIZE, - PROT_READ|PROT_WRITE, MAP_SHARED, p->shmfd, iChunk*LSM_SHM_CHUNK_SIZE - ); - if( p->apShm[iChunk]==0 ) return LSM_IOERR_BKPT; - } - - *ppShm = p->apShm[iChunk]; - return LSM_OK; -} - -static void lsmPosixOsShmBarrier(void){ -} - -static int lsmPosixOsShmUnmap(lsm_file *pFile, int bDelete){ - PosixFile *p = (PosixFile *)pFile; - if( p->shmfd>0 ){ - int i; - for(i=0; i<p->nShm; i++){ - if( p->apShm[i] ){ - munmap(p->apShm[i], LSM_SHM_CHUNK_SIZE); - p->apShm[i] = 0; - } - } - close(p->shmfd); - p->shmfd = 0; - if( bDelete ){ - char *zShm = posixShmFile(p); - if( zShm ) unlink(zShm); - lsmFree(p->pEnv, zShm); - } - } - return LSM_OK; -} - - -static int lsmPosixOsClose(lsm_file *pFile){ - PosixFile *p = (PosixFile *)pFile; - lsmPosixOsShmUnmap(pFile, 0); - if( p->pMap ) munmap(p->pMap, p->nMap); - close(p->fd); - lsm_free(p->pEnv, p->apShm); - lsm_free(p->pEnv, p); - return LSM_OK; -} - -static int lsmPosixOsSleep(lsm_env *pEnv, int us){ -#if 0 - /* Apparently on Android usleep() returns void */ - if( usleep(us) ) return LSM_IOERR; -#endif - usleep(us); - return LSM_OK; -} - -/**************************************************************************** -** Memory allocation routines. -*/ -#define BLOCK_HDR_SIZE ROUND8( sizeof(size_t) ) - -static void *lsmPosixOsMalloc(lsm_env *pEnv, size_t N){ - unsigned char * m; - N += BLOCK_HDR_SIZE; - m = (unsigned char *)malloc(N); - *((size_t*)m) = N; - return m + BLOCK_HDR_SIZE; -} - -static void lsmPosixOsFree(lsm_env *pEnv, void *p){ - if(p){ - free( ((unsigned char *)p) - BLOCK_HDR_SIZE ); - } -} - -static void *lsmPosixOsRealloc(lsm_env *pEnv, void *p, size_t N){ - unsigned char * m = (unsigned char *)p; - if(1>N){ - lsmPosixOsFree( pEnv, p ); - return NULL; - }else if(NULL==p){ - return lsmPosixOsMalloc(pEnv, N); - }else{ - void * re = NULL; - m -= BLOCK_HDR_SIZE; -#if 0 /* arguable: don't shrink */ - size_t * sz = (size_t*)m; - if(*sz >= (size_t)N){ - return p; - } -#endif - re = realloc( m, N + BLOCK_HDR_SIZE ); - if(re){ - m = (unsigned char *)re; - *((size_t*)m) = N; - return m + BLOCK_HDR_SIZE; - }else{ - return NULL; - } - } -} - -static size_t lsmPosixOsMSize(lsm_env *pEnv, void *p){ - unsigned char * m = (unsigned char *)p; - return *((size_t*)(m-BLOCK_HDR_SIZE)); -} -#undef BLOCK_HDR_SIZE - - -#ifdef LSM_MUTEX_PTHREADS -/************************************************************************* -** Mutex methods for pthreads based systems. If LSM_MUTEX_PTHREADS is -** missing then a no-op implementation of mutexes found in lsm_mutex.c -** will be used instead. -*/ -#include <pthread.h> - -typedef struct PthreadMutex PthreadMutex; -struct PthreadMutex { - lsm_env *pEnv; - pthread_mutex_t mutex; -#ifdef LSM_DEBUG - pthread_t owner; -#endif -}; - -#ifdef LSM_DEBUG -# define LSM_PTHREAD_STATIC_MUTEX { 0, PTHREAD_MUTEX_INITIALIZER, 0 } -#else -# define LSM_PTHREAD_STATIC_MUTEX { 0, PTHREAD_MUTEX_INITIALIZER } -#endif - -static int lsmPosixOsMutexStatic( - lsm_env *pEnv, - int iMutex, - lsm_mutex **ppStatic -){ - static PthreadMutex sMutex[2] = { - LSM_PTHREAD_STATIC_MUTEX, - LSM_PTHREAD_STATIC_MUTEX - }; - - assert( iMutex==LSM_MUTEX_GLOBAL || iMutex==LSM_MUTEX_HEAP ); - assert( LSM_MUTEX_GLOBAL==1 && LSM_MUTEX_HEAP==2 ); - - *ppStatic = (lsm_mutex *)&sMutex[iMutex-1]; - return LSM_OK; -} - -static int lsmPosixOsMutexNew(lsm_env *pEnv, lsm_mutex **ppNew){ - PthreadMutex *pMutex; /* Pointer to new mutex */ - pthread_mutexattr_t attr; /* Attributes object */ - - pMutex = (PthreadMutex *)lsmMallocZero(pEnv, sizeof(PthreadMutex)); - if( !pMutex ) return LSM_NOMEM_BKPT; - - pMutex->pEnv = pEnv; - pthread_mutexattr_init(&attr); - pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE); - pthread_mutex_init(&pMutex->mutex, &attr); - pthread_mutexattr_destroy(&attr); - - *ppNew = (lsm_mutex *)pMutex; - return LSM_OK; -} - -static void lsmPosixOsMutexDel(lsm_mutex *p){ - PthreadMutex *pMutex = (PthreadMutex *)p; - pthread_mutex_destroy(&pMutex->mutex); - lsmFree(pMutex->pEnv, pMutex); -} - -static void lsmPosixOsMutexEnter(lsm_mutex *p){ - PthreadMutex *pMutex = (PthreadMutex *)p; - pthread_mutex_lock(&pMutex->mutex); - -#ifdef LSM_DEBUG - assert( !pthread_equal(pMutex->owner, pthread_self()) ); - pMutex->owner = pthread_self(); - assert( pthread_equal(pMutex->owner, pthread_self()) ); -#endif -} - -static int lsmPosixOsMutexTry(lsm_mutex *p){ - int ret; - PthreadMutex *pMutex = (PthreadMutex *)p; - ret = pthread_mutex_trylock(&pMutex->mutex); -#ifdef LSM_DEBUG - if( ret==0 ){ - assert( !pthread_equal(pMutex->owner, pthread_self()) ); - pMutex->owner = pthread_self(); - assert( pthread_equal(pMutex->owner, pthread_self()) ); - } -#endif - return ret; -} - -static void lsmPosixOsMutexLeave(lsm_mutex *p){ - PthreadMutex *pMutex = (PthreadMutex *)p; -#ifdef LSM_DEBUG - assert( pthread_equal(pMutex->owner, pthread_self()) ); - pMutex->owner = 0; - assert( !pthread_equal(pMutex->owner, pthread_self()) ); -#endif - pthread_mutex_unlock(&pMutex->mutex); -} - -#ifdef LSM_DEBUG -static int lsmPosixOsMutexHeld(lsm_mutex *p){ - PthreadMutex *pMutex = (PthreadMutex *)p; - return pMutex ? pthread_equal(pMutex->owner, pthread_self()) : 1; -} -static int lsmPosixOsMutexNotHeld(lsm_mutex *p){ - PthreadMutex *pMutex = (PthreadMutex *)p; - return pMutex ? !pthread_equal(pMutex->owner, pthread_self()) : 1; -} -#endif -/* -** End of pthreads mutex implementation. -*************************************************************************/ -#else -/************************************************************************* -** Noop mutex implementation -*/ -typedef struct NoopMutex NoopMutex; -struct NoopMutex { - lsm_env *pEnv; /* Environment handle (for xFree()) */ - int bHeld; /* True if mutex is held */ - int bStatic; /* True for a static mutex */ -}; -static NoopMutex aStaticNoopMutex[2] = { - {0, 0, 1}, - {0, 0, 1}, -}; - -static int lsmPosixOsMutexStatic( - lsm_env *pEnv, - int iMutex, - lsm_mutex **ppStatic -){ - assert( iMutex>=1 && iMutex<=(int)array_size(aStaticNoopMutex) ); - *ppStatic = (lsm_mutex *)&aStaticNoopMutex[iMutex-1]; - return LSM_OK; -} -static int lsmPosixOsMutexNew(lsm_env *pEnv, lsm_mutex **ppNew){ - NoopMutex *p; - p = (NoopMutex *)lsmMallocZero(pEnv, sizeof(NoopMutex)); - if( p ) p->pEnv = pEnv; - *ppNew = (lsm_mutex *)p; - return (p ? LSM_OK : LSM_NOMEM_BKPT); -} -static void lsmPosixOsMutexDel(lsm_mutex *pMutex) { - NoopMutex *p = (NoopMutex *)pMutex; - assert( p->bStatic==0 && p->pEnv ); - lsmFree(p->pEnv, p); -} -static void lsmPosixOsMutexEnter(lsm_mutex *pMutex){ - NoopMutex *p = (NoopMutex *)pMutex; - assert( p->bHeld==0 ); - p->bHeld = 1; -} -static int lsmPosixOsMutexTry(lsm_mutex *pMutex){ - NoopMutex *p = (NoopMutex *)pMutex; - assert( p->bHeld==0 ); - p->bHeld = 1; - return 0; -} -static void lsmPosixOsMutexLeave(lsm_mutex *pMutex){ - NoopMutex *p = (NoopMutex *)pMutex; - assert( p->bHeld==1 ); - p->bHeld = 0; -} -#ifdef LSM_DEBUG -static int lsmPosixOsMutexHeld(lsm_mutex *pMutex){ - NoopMutex *p = (NoopMutex *)pMutex; - return p ? p->bHeld : 1; -} -static int lsmPosixOsMutexNotHeld(lsm_mutex *pMutex){ - NoopMutex *p = (NoopMutex *)pMutex; - return p ? !p->bHeld : 1; -} -#endif -/***************************************************************************/ -#endif /* else LSM_MUTEX_NONE */ - -/* Without LSM_DEBUG, the MutexHeld tests are never called */ -#ifndef LSM_DEBUG -# define lsmPosixOsMutexHeld 0 -# define lsmPosixOsMutexNotHeld 0 -#endif - -lsm_env *lsm_default_env(void){ - static lsm_env posix_env = { - sizeof(lsm_env), /* nByte */ - 1, /* iVersion */ - /***** file i/o ******************/ - 0, /* pVfsCtx */ - lsmPosixOsFullpath, /* xFullpath */ - lsmPosixOsOpen, /* xOpen */ - lsmPosixOsRead, /* xRead */ - lsmPosixOsWrite, /* xWrite */ - lsmPosixOsTruncate, /* xTruncate */ - lsmPosixOsSync, /* xSync */ - lsmPosixOsSectorSize, /* xSectorSize */ - lsmPosixOsRemap, /* xRemap */ - lsmPosixOsFileid, /* xFileid */ - lsmPosixOsClose, /* xClose */ - lsmPosixOsUnlink, /* xUnlink */ - lsmPosixOsLock, /* xLock */ - lsmPosixOsTestLock, /* xTestLock */ - lsmPosixOsShmMap, /* xShmMap */ - lsmPosixOsShmBarrier, /* xShmBarrier */ - lsmPosixOsShmUnmap, /* xShmUnmap */ - /***** memory allocation *********/ - 0, /* pMemCtx */ - lsmPosixOsMalloc, /* xMalloc */ - lsmPosixOsRealloc, /* xRealloc */ - lsmPosixOsFree, /* xFree */ - lsmPosixOsMSize, /* xSize */ - /***** mutexes *********************/ - 0, /* pMutexCtx */ - lsmPosixOsMutexStatic, /* xMutexStatic */ - lsmPosixOsMutexNew, /* xMutexNew */ - lsmPosixOsMutexDel, /* xMutexDel */ - lsmPosixOsMutexEnter, /* xMutexEnter */ - lsmPosixOsMutexTry, /* xMutexTry */ - lsmPosixOsMutexLeave, /* xMutexLeave */ - lsmPosixOsMutexHeld, /* xMutexHeld */ - lsmPosixOsMutexNotHeld, /* xMutexNotHeld */ - /***** other *********************/ - lsmPosixOsSleep, /* xSleep */ - }; - return &posix_env; -} - -#endif |