diff options
Diffstat (limited to 'db2/os')
| -rw-r--r-- | db2/os/db_os_abs.c | 82 | ||||
| -rw-r--r-- | db2/os/db_os_dir.c | 136 | ||||
| -rw-r--r-- | db2/os/db_os_fid.c | 126 | ||||
| -rw-r--r-- | db2/os/db_os_lseek.c | 60 | ||||
| -rw-r--r-- | db2/os/db_os_mmap.c | 106 | ||||
| -rw-r--r-- | db2/os/db_os_open.c | 147 | ||||
| -rw-r--r-- | db2/os/db_os_rw.c | 75 | ||||
| -rw-r--r-- | db2/os/db_os_sleep.c | 62 | ||||
| -rw-r--r-- | db2/os/db_os_stat.c | 84 | ||||
| -rw-r--r-- | db2/os/db_os_unlink.c | 35 |
10 files changed, 913 insertions, 0 deletions
diff --git a/db2/os/db_os_abs.c b/db2/os/db_os_abs.c new file mode 100644 index 0000000000..8795205839 --- /dev/null +++ b/db2/os/db_os_abs.c @@ -0,0 +1,82 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1997 + * Sleepycat Software. All rights reserved. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)db_os_abs.c 10.5 (Sleepycat) 7/5/97"; +#endif /* not lint */ + +#ifndef NO_SYSTEM_INCLUDES +#include <string.h> +#endif + +#include "db_int.h" +#include "os_ext.h" + +/* + * __db_abspath -- + * Return if a path is an absolute path. + * + * PUBLIC: int __db_abspath __P((const char *)); + */ +int +__db_abspath(path) + const char *path; +{ +#ifdef _WIN32 + /* + * !!! + * Check for drive specifications, e.g., "C:". In addition, the path + * separator used by the win32 DB (PATH_SEPARATOR) is \; look for both + * / and \ since these are user-input paths. + */ + if (isalpha(path[0]) && path[1] == ':') + path += 2; + return (path[0] == '/' || path[0] == '\\'); +#else +#ifdef macintosh + /* + * !!! + * Absolute pathnames always start with a volume name, which must be + * followed by a colon, thus they are of the form: + * volume: or volume:dir1:dir2:file + * + * Relative pathnames are either a single name without colons or a + * path starting with a colon, thus of the form: + * file or :file or :dir1:dir2:file + */ + return (strchr(path, ':') != NULL && path[0] != ':'); +#else + return (path[0] == '/'); +#endif +#endif +} + +/* + * __db_rpath -- + * Return the last path separator in the path or NULL if none found. + * + * PUBLIC: char *__db_rpath __P((const char *)); + */ +char * +__db_rpath(path) + const char *path; +{ + const char *s, *last; + + last = NULL; + if (PATH_SEPARATOR[1] != '\0') { + for (s = path; s[0] != '\0'; ++s) + if (strchr(PATH_SEPARATOR, s[0]) != NULL) + last = s; + } else + for (s = path; s[0] != '\0'; ++s) + if (s[0] == PATH_SEPARATOR[0]) + last = s; + return ((char *)last); +} diff --git a/db2/os/db_os_dir.c b/db2/os/db_os_dir.c new file mode 100644 index 0000000000..23a6a45919 --- /dev/null +++ b/db2/os/db_os_dir.c @@ -0,0 +1,136 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1997 + * Sleepycat Software. All rights reserved. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)db_os_dir.c 10.7 (Sleepycat) 8/23/97"; +#endif /* not lint */ + +#ifndef NO_SYSTEM_INCLUDES +#include <sys/types.h> + +#if HAVE_DIRENT_H +# include <dirent.h> +# define NAMLEN(dirent) strlen((dirent)->d_name) +#else +# define dirent direct +# define NAMLEN(dirent) (dirent)->d_namlen +# if HAVE_SYS_NDIR_H +# include <sys/ndir.h> +# endif +# if HAVE_SYS_DIR_H +# include <sys/dir.h> +# endif +# if HAVE_NDIR_H +# include <ndir.h> +# endif +#endif + +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#endif + +#include "db_int.h" +#include "os_ext.h" +#include "common_ext.h" + +/* + * __db_dir -- + * Return a list of the files in a directory. + * + * PUBLIC: int __db_dir __P((DB_ENV *, char *, char ***, int *)); + */ +int +__db_dir(dbenv, dir, namesp, cntp) + DB_ENV *dbenv; + const char *dir; + char ***namesp; + int *cntp; +{ + int arraysz, cnt; + char **names; +#ifdef _WIN32 + struct _finddata_t fdata; + long dirhandle; + int finished; + + if ((dirhandle = _findfirst(dir,&fdata)) == -1) { + __db_err(dbenv, "%s: %s", dir, strerror(errno)); + return (errno); + } + + names = NULL; + finished = 0; + for (arraysz = cnt = 0; finished != 1; ++cnt) { + if (cnt >= arraysz) { + arraysz += 100; + names = (char **)(names == NULL ? + malloc(arraysz * sizeof(names[0])) : + realloc(names, arraysz * sizeof(names[0]))); + if (names == NULL) + goto nomem; + } + if ((names[cnt] = (char *)strdup(fdata.name)) == NULL) + goto nomem; + if (_findnext(dirhandle,&fdata) != 0) + finished = 1; + } + _findclose(dirhandle); +#else /* !_WIN32 */ + struct dirent *dp; + DIR *dirp; + + if ((dirp = opendir(dir)) == NULL) { + __db_err(dbenv, "%s: %s", dir, strerror(errno)); + return (errno); + } + names = NULL; + for (arraysz = cnt = 0; (dp = readdir(dirp)) != NULL; ++cnt) { + if (cnt >= arraysz) { + arraysz += 100; + names = (char **)(names == NULL ? + malloc(arraysz * sizeof(names[0])) : + realloc(names, arraysz * sizeof(names[0]))); + if (names == NULL) + goto nomem; + } + if ((names[cnt] = (char *)strdup(dp->d_name)) == NULL) + goto nomem; + } + (void)closedir(dirp); +#endif /* !_WIN32 */ + + *namesp = names; + *cntp = cnt; + return (0); + +nomem: if (names != NULL) + __db_dirf(dbenv, names, cnt); + __db_err(dbenv, "%s", strerror(ENOMEM)); + return (ENOMEM); +} + +/* + * __db_dirf -- + * Free the list of files. + * + * PUBLIC: void __db_dirf __P((DB_ENV *, char **, int)); + */ +void +__db_dirf(dbenv, names, cnt) + DB_ENV *dbenv; + char **names; + int cnt; +{ + dbenv = dbenv; /* XXX: Shut the compiler up. */ + while (cnt > 0) + free(names[--cnt]); + free (names); +} diff --git a/db2/os/db_os_fid.c b/db2/os/db_os_fid.c new file mode 100644 index 0000000000..8fa55fa56c --- /dev/null +++ b/db2/os/db_os_fid.c @@ -0,0 +1,126 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1996, 1997 + * Sleepycat Software. All rights reserved. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)db_os_fid.c 10.7 (Sleepycat) 8/21/97"; +#endif /* not lint */ + +#ifndef NO_SYSTEM_INCLUDES +#include <sys/types.h> +#include <sys/stat.h> + +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#endif + +#include "db_int.h" +#include "db_page.h" +#include "os_ext.h" +#include "common_ext.h" + +/* + * __db_fileid -- + * Return a unique identifier for a file. + * + * PUBLIC: int __db_fileid __P((DB_ENV *, const char *, int, u_int8_t *)); + */ +int +__db_fileid(dbenv, fname, timestamp, fidp) + DB_ENV *dbenv; + const char *fname; + int timestamp; + u_int8_t *fidp; +{ + time_t now; + u_int8_t *p; + unsigned int i; + +#ifdef _WIN32 + /* + * The documentation for GetFileInformationByHandle() states that the + * inode-type numbers are not constant between processes. Actually, + * they are, they're the NTFS MFT indexes. So, this works on NTFS, + * but perhaps not on other platforms, and perhaps not over a network. + * Can't think of a better solution right now. + */ + int fd = 0; + HANDLE fh = 0; + BY_HANDLE_FILE_INFORMATION fi; + BOOL retval = FALSE; + + /* Clear the buffer. */ + memset(fidp, 0, DB_FILE_ID_LEN); + + /* first we open the file, because we're not given a handle to it */ + fd = open(fname,_O_RDONLY,_S_IREAD); + if (-1 == fd) { + /* If we can't open it, we're in trouble */ + return (errno); + } + + /* File open, get its info */ + fh = (HANDLE)_get_osfhandle(fd); + if ((HANDLE)(-1) != fh) { + retval = GetFileInformationByHandle(fh,&fi); + } + close(fd); + + /* + * We want the three 32-bit words which tell us the volume ID and + * the file ID. We make a crude attempt to copy the bytes over to + * the callers buffer. + * + * DBDB: really we should ensure that the bytes get packed the same + * way on all compilers, platforms etc. + */ + if ( ((HANDLE)(-1) != fh) && (TRUE == retval) ) { + memcpy(fidp, &fi.nFileIndexLow, sizeof(u_int32_t)); + fidp += sizeof(u_int32_t); + memcpy(fidp, &fi.nFileIndexHigh, sizeof(u_int32_t)); + fidp += sizeof(u_int32_t); + memcpy(fidp, &fi.dwVolumeSerialNumber, sizeof(u_int32_t)); + } +#else + struct stat sb; + + /* Clear the buffer. */ + memset(fidp, 0, DB_FILE_ID_LEN); + + /* Check for the unthinkable. */ + if (sizeof(sb.st_ino) + + sizeof(sb.st_dev) + sizeof(time_t) > DB_FILE_ID_LEN) + return (EINVAL); + + /* On UNIX, use a dev/inode pair. */ + if (stat(fname, &sb)) { + __db_err(dbenv, "%s: %s", fname, strerror(errno)); + return (errno); + } + + /* + * Use the inode first and in reverse order, hopefully putting the + * distinguishing information early in the string. + */ + for (p = (u_int8_t *)&sb.st_ino + + sizeof(sb.st_ino), i = 0; i < sizeof(sb.st_ino); ++i) + *fidp++ = *--p; + for (p = (u_int8_t *)&sb.st_dev + + sizeof(sb.st_dev), i = 0; i < sizeof(sb.st_dev); ++i) + *fidp++ = *--p; +#endif + if (timestamp) { + (void)time(&now); + for (p = (u_int8_t *)&now + + sizeof(now), i = 0; i < sizeof(now); ++i) + *fidp++ = *--p; + } + return (0); +} diff --git a/db2/os/db_os_lseek.c b/db2/os/db_os_lseek.c new file mode 100644 index 0000000000..cecf0e156b --- /dev/null +++ b/db2/os/db_os_lseek.c @@ -0,0 +1,60 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1997 + * Sleepycat Software. All rights reserved. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)db_os_lseek.c 10.3 (Sleepycat) 6/28/97"; +#endif /* not lint */ + +#ifndef NO_SYSTEM_INCLUDES +#include <sys/types.h> + +#include <errno.h> +#include <unistd.h> +#endif + +#include "db_int.h" +#include "os_ext.h" + +/* + * __db_lseek -- + * Seek to a page/byte offset in the file. + * + * PUBLIC: int __db_lseek __P((int, size_t, db_pgno_t, u_long, int)); + */ +int +__db_lseek(fd, pgsize, pageno, relative, whence) + int fd; + size_t pgsize; + db_pgno_t pageno; + u_long relative; + int whence; +{ + /* 64-bit offsets are done differently by different vendors. */ +#undef __LSEEK_SET +#ifdef HAVE_LLSEEK +#define __LSEEK_SET + offset_t offset; /* Solaris. */ + + offset = pgsize * pageno + relative; + return (llseek(fd, offset, whence) == -1 ? errno : 0); +#endif +#ifdef HAVE_LSEEKI +#define __LSEEK_SET + __int64 offset; /* WNT */ + + offset = pgsize * pageno + relative; + return (_lseeki64(fd, offset, whence) == -1 ? errno : 0); +#endif +#ifndef __LSEEK_SET + off_t offset; /* Default. */ + + offset = pgsize * pageno + relative; + return (lseek(fd, offset, whence) == -1 ? errno : 0); +#endif +} diff --git a/db2/os/db_os_mmap.c b/db2/os/db_os_mmap.c new file mode 100644 index 0000000000..0cd8fad0b0 --- /dev/null +++ b/db2/os/db_os_mmap.c @@ -0,0 +1,106 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1996, 1997 + * Sleepycat Software. All rights reserved. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)db_os_mmap.c 10.4 (Sleepycat) 6/28/97"; +#endif /* not lint */ + +#ifndef NO_SYSTEM_INCLUDES +#include <sys/types.h> +#include <sys/mman.h> + +#include <errno.h> +#endif + +#include "db_int.h" +#include "os_ext.h" + +/* + * __db_mmap -- + * Map in some shared memory backed by a file descriptor. + * + * PUBLIC: int __db_mmap __P((int, size_t, int, int, void *)); + */ +int +__db_mmap(fd, len, is_private, rdonly, addr) + int fd, is_private, rdonly; + size_t len; + void *addr; +{ +#ifdef _WIN32 + /* We have not implemented copy-on-write here */ + void * pMemory = 0; + HANDLE hFile = (HANDLE)_get_osfhandle(fd); + HANDLE hMemory = CreateFileMapping( + hFile, + 0, + (rdonly ? PAGE_READONLY : PAGE_READWRITE), + 0, + len, /* This code fails if the library is ever compiled on a 64-bit machine */ + 0 + ); + if (NULL == hMemory) + { + return errno; + } + pMemory = MapViewOfFile( + hMemory, + (rdonly ? FILE_MAP_READ : FILE_MAP_ALL_ACCESS), + 0, + 0, + len + ); + CloseHandle(hMemory); + *(void **)addr = pMemory; + return 0; + +#else /* !_WIN32 */ + + void *p; + int flags, prot; + + flags = is_private ? MAP_PRIVATE : MAP_SHARED; +#ifdef MAP_HASSEMAPHORE + flags += MAP_HASSEMAPHORE; +#endif + prot = PROT_READ | (rdonly ? 0 : PROT_WRITE); + +#ifndef MAP_FAILED /* XXX: Mmap(2) failure return. */ +#define MAP_FAILED -1 +#endif + if ((p = + mmap(NULL, len, prot, flags, fd, (off_t)0)) == (void *)MAP_FAILED) + return (errno); + + *(void **)addr = p; + return (0); +#endif /* _WIN32 */ +} + +/* + * __db_unmap -- + * Release the specified shared memory. + * + * PUBLIC: int __db_munmap __P((void *, size_t)); + */ +int +__db_munmap(addr, len) + void *addr; + size_t len; +{ + /* + * !!! + * The argument len is always the same length as was mapped. + */ +#ifdef _WIN32 + return (!UnmapViewOfFile(addr) ? errno : 0); +#else + return (munmap(addr, len) ? errno : 0); +#endif +} diff --git a/db2/os/db_os_open.c b/db2/os/db_os_open.c new file mode 100644 index 0000000000..1d67ef9508 --- /dev/null +++ b/db2/os/db_os_open.c @@ -0,0 +1,147 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1997 + * Sleepycat Software. All rights reserved. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)db_os_open.c 10.14 (Sleepycat) 7/5/97"; +#endif /* not lint */ + +#ifndef NO_SYSTEM_INCLUDES +#include <sys/types.h> + +#include <errno.h> +#include <fcntl.h> +#include <unistd.h> +#endif + +#include "db_int.h" +#include "os_ext.h" + +/* + * __db_oflags -- + * Convert open(2) flags to DB flags. + * + * PUBLIC: int __db_oflags __P((int)); + */ +int +__db_oflags(oflags) + int oflags; +{ + int dbflags; + + /* + * XXX + * Convert POSIX 1003.1 open(2) flags to DB flags. Not an exact + * science as most POSIX implementations don't have a flag value + * for O_RDONLY, it's simply the lack of a write flag. + */ + dbflags = 0; + if (oflags & O_CREAT) + dbflags |= DB_CREATE; + if (!(oflags & (O_RDWR | O_WRONLY)) || oflags & O_RDONLY) + dbflags |= DB_RDONLY; + if (oflags & O_TRUNC) + dbflags |= DB_TRUNCATE; + return (dbflags); +} + +/* + * __db_fdopen -- + * Open a file descriptor. + * + * PUBLIC: int __db_fdopen __P((const char *, int, int, int, int *)); + */ +int +__db_fdopen(name, arg_flags, ok_flags, mode, fdp) + const char *name; + int arg_flags, ok_flags, mode, *fdp; +{ + int fd, flags; + + if (arg_flags & ~ok_flags) + return (EINVAL); + + flags = 0; + if (arg_flags & DB_CREATE) + flags |= O_CREAT; + + if (arg_flags & DB_EXCL) + flags |= O_EXCL; + + if (arg_flags & DB_RDONLY) + flags |= O_RDONLY; + else + flags |= O_RDWR; + +#ifdef _WIN32 +#ifdef _MSC_VER + if (arg_flags & DB_SEQUENTIAL) + flags |= _O_SEQUENTIAL; + else + flags |= _O_RANDOM; + + if (arg_flags & DB_TEMPORARY) + flags |= _O_TEMPORARY; +#endif + flags |= O_BINARY | O_NOINHERIT; +#endif + + if (arg_flags & DB_TRUNCATE) + flags |= O_TRUNC; + + /* Open the file. */ + if ((fd = open(name, flags, mode)) == -1) + return (errno); + +#ifndef _WIN32 + /* Delete any temporary file; done for Win32 by _O_TEMPORARY. */ + if (arg_flags & DB_TEMPORARY) + (void)unlink(name); +#endif + +#if !defined(_WIN32) && !defined(macintosh) + /* + * Deny access to any child process; done for Win32 by O_NOINHERIT, + * MacOS has neither child processes nor fd inheritance. + */ + if (fcntl(fd, F_SETFD, 1) == -1) { + int ret = errno; + + (void)__db_close(fd); + return (ret); + } +#endif + *fdp = fd; + return (0); +} + +/* + * __db_fsync -- + * Flush a file descriptor. + * + * PUBLIC: int __db_fsync __P((int)); + */ +int +__db_fsync(fd) + int fd; +{ + return (fsync(fd) ? errno : 0); +} + +/* + * __db_close -- + * Close a file descriptor. + * + * PUBLIC: int __db_close __P((int)); + */ +int +__db_close(fd) + int fd; +{ + return (close(fd) ? errno : 0); +} diff --git a/db2/os/db_os_rw.c b/db2/os/db_os_rw.c new file mode 100644 index 0000000000..5a6c2196fd --- /dev/null +++ b/db2/os/db_os_rw.c @@ -0,0 +1,75 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1997 + * Sleepycat Software. All rights reserved. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)db_os_rw.c 10.4 (Sleepycat) 6/28/97"; +#endif /* not lint */ + +#ifndef NO_SYSTEM_INCLUDES +#include <sys/types.h> + +#include <errno.h> +#include <unistd.h> +#endif + +#include "db_int.h" +#include "os_ext.h" + +/* + * __db_read -- + * Read from a file handle. + * + * PUBLIC: int __db_read __P((int, void *, size_t, ssize_t *)); + */ +int +__db_read(fd, addr, len, nrp) + int fd; + void *addr; + size_t len; + ssize_t *nrp; +{ + size_t offset; + ssize_t nr; + u_int8_t *taddr; + + for (taddr = addr, + offset = 0; offset < len; taddr += nr, offset += nr) { + if ((nr = read(fd, taddr, len - offset)) < 0) + return (errno); + if (nr == 0) + break; + } + *nrp = taddr - (u_int8_t *)addr; + return (0); +} + +/* + * __db_write -- + * Write to a file handle. + * + * PUBLIC: int __db_write __P((int, void *, size_t, ssize_t *)); + */ +int +__db_write(fd, addr, len, nwp) + int fd; + void *addr; + size_t len; + ssize_t *nwp; +{ + size_t offset; + ssize_t nw; + u_int8_t *taddr; + + for (taddr = addr, + offset = 0; offset < len; taddr += nw, offset += nw) + if ((nw = write(fd, taddr, len - offset)) < 0) + return (errno); + *nwp = len; + return (0); +} diff --git a/db2/os/db_os_sleep.c b/db2/os/db_os_sleep.c new file mode 100644 index 0000000000..5591789f51 --- /dev/null +++ b/db2/os/db_os_sleep.c @@ -0,0 +1,62 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1997 + * Sleepycat Software. All rights reserved. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)db_os_sleep.c 10.6 (Sleepycat) 6/28/97"; +#endif /* not lint */ + +#ifndef NO_SYSTEM_INCLUDES +#include <sys/types.h> +#ifdef HAVE_SYS_TIME_H +#include <sys/time.h> +#endif +#ifdef HAVE_SYS_SELECT_H +#include <sys/select.h> +#endif + +#include <errno.h> +#ifndef HAVE_SYS_TIME_H +#include <time.h> +#endif +#include <unistd.h> +#endif + +#include "db_int.h" +#include "os_ext.h" + +/* + * __db_sleep -- + * Yield the processor for a period of time. + * + * PUBLIC: int __db_sleep __P((u_long, u_long)); + */ +int +__db_sleep(secs, usecs) + u_long secs, usecs; /* Seconds and microseconds. */ +{ +#ifndef _WIN32 + struct timeval t; +#endif + + /* Don't require that the values be normalized. */ + for (; usecs >= 1000000; ++secs, usecs -= 1000000); + + /* + * It's important that we yield the processor here so that other + * processes or threads are permitted to run. + */ +#ifdef _WIN32 + Sleep(secs * 1000 + usecs / 1000); + return (0); +#else + t.tv_sec = secs; + t.tv_usec = usecs; + return (select(0, NULL, NULL, NULL, &t) == -1 ? errno : 0); +#endif +} diff --git a/db2/os/db_os_stat.c b/db2/os/db_os_stat.c new file mode 100644 index 0000000000..7929b6b754 --- /dev/null +++ b/db2/os/db_os_stat.c @@ -0,0 +1,84 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1997 + * Sleepycat Software. All rights reserved. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)db_os_stat.c 10.6 (Sleepycat) 7/2/97"; +#endif /* not lint */ + +#ifndef NO_SYSTEM_INCLUDES +#include <sys/types.h> +#include <sys/stat.h> + +#include <errno.h> +#include <string.h> +#endif + +#include "db_int.h" +#include "os_ext.h" +#include "common_ext.h" + +/* + * __db_exists -- + * Return if the file exists. + * + * PUBLIC: int __db_exists __P((const char *, int *)); + */ +int +__db_exists(path, isdirp) + const char *path; + int *isdirp; +{ + struct stat sb; + + if (stat(path, &sb) != 0) + return (errno); + if (isdirp != NULL) + *isdirp = S_ISDIR(sb.st_mode); + return (0); +} + +/* + * __db_stat -- + * Return file size and I/O size; abstracted to make it easier + * to replace. + * + * PUBLIC: int __db_stat __P((DB_ENV *, const char *, int, off_t *, off_t *)); + */ +int +__db_stat(dbenv, path, fd, sizep, iop) + DB_ENV *dbenv; + const char *path; + int fd; + off_t *sizep, *iop; +{ + struct stat sb; + + if (fstat(fd, &sb) == -1) { + __db_err(dbenv, "%s: fstat: %s", path, strerror(errno)); + return (errno); + } + + /* Return the size of the file. */ + if (sizep != NULL) + *sizep = sb.st_size; + + /* + * Return the underlying filesystem blocksize, if available. Default + * to 8K on the grounds that most OS's use less than 8K as their VM + * page size. + */ +#ifdef HAVE_ST_BLKSIZE + if (iop != NULL) + *iop = sb.st_blksize; +#else + if (iop != NULL) + *iop = 8 * 1024; +#endif + return (0); +} diff --git a/db2/os/db_os_unlink.c b/db2/os/db_os_unlink.c new file mode 100644 index 0000000000..872beba3cf --- /dev/null +++ b/db2/os/db_os_unlink.c @@ -0,0 +1,35 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1997 + * Sleepycat Software. All rights reserved. + */ + +#include "config.h" + +#ifndef lint +static const char sccsid[] = "@(#)db_os_unlink.c 10.2 (Sleepycat) 6/28/97"; +#endif /* not lint */ + +#ifndef NO_SYSTEM_INCLUDES +#include <sys/types.h> + +#include <errno.h> +#include <unistd.h> +#endif + +#include "db_int.h" +#include "os_ext.h" + +/* + * __db_unlink -- + * Remove a file. + * + * PUBLIC: int __db_unlink __P((const char *)); + */ +int +__db_unlink(path) + const char *path; +{ + return (unlink(path) == -1 ? errno : 0); +} |