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os_fsync.c
Package: mysql-4.1.16-win-src.zip [view]
Upload User: romrleung
Upload Date: 2022-05-23
Package Size: 18897k
Code Size: 1k
Category:
MySQL
Development Platform:
Visual C++
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1997-2002
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char revid[] = "$Id: os_fsync.c,v 11.15 2002/07/12 18:56:54 bostic Exp $";
- #endif /* not lint */
- #ifndef NO_SYSTEM_INCLUDES
- #include <sys/types.h>
- #include <fcntl.h> /* XXX: Required by __hp3000s900 */
- #include <unistd.h>
- #include <string.h>
- #endif
- #include "db_int.h"
- /*
- * __os_fsync --
- * Flush a file descriptor.
- *
- * PUBLIC: int __os_fsync __P((DB_ENV *, DB_FH *));
- */
- int
- __os_fsync(dbenv, fhp)
- DB_ENV *dbenv;
- DB_FH *fhp;
- {
- BOOL success;
- int ret;
- /*
- * Do nothing if the file descriptor has been marked as not requiring
- * any sync to disk.
- */
- if (F_ISSET(fhp, DB_FH_NOSYNC))
- return (0);
- ret = 0;
- do {
- if (DB_GLOBAL(j_fsync) != NULL)
- success = (DB_GLOBAL(j_fsync)(fhp->fd) == 0);
- else {
- success = FlushFileBuffers(fhp->handle);
- if (!success)
- __os_set_errno(__os_win32_errno());
- }
- } while (!success && (ret = __os_get_errno()) == EINTR);
- if (ret != 0)
- __db_err(dbenv, "fsync %s", strerror(ret));
- return (ret);
- }