/*- * See the file LICENSE for redistribution information. * * Copyright (c) 1997-2005 * Sleepycat Software. All rights reserved. * * $Id: os_unlink.c,v 12.3 2005/08/10 15:47:27 bostic Exp $ */ #include "db_config.h" #ifndef NO_SYSTEM_INCLUDES #include <sys/types.h> #include <string.h> #endif #include "db_int.h" /* * __os_region_unlink -- * Remove a shared memory object file. * * PUBLIC: int __os_region_unlink __P((DB_ENV *, const char *)); */ int __os_region_unlink(dbenv, path) DB_ENV *dbenv; const char *path; { #ifdef HAVE_QNX int ret; char *newname; if ((ret = __os_shmname(dbenv, path, &newname)) != 0) goto err; if ((ret = shm_unlink(newname)) != 0) { ret = __os_get_errno(); if (ret != ENOENT) __db_err(dbenv, "shm_unlink: %s: %s", newname, strerror(ret)); } err: if (newname != NULL) __os_free(dbenv, newname); return (ret); #else if (F_ISSET(dbenv, DB_ENV_OVERWRITE)) (void)__db_file_multi_write(dbenv, path); return (__os_unlink(dbenv, path)); #endif } /* * __os_unlink -- * Remove a file. * * PUBLIC: int __os_unlink __P((DB_ENV *, const char *)); */ int __os_unlink(dbenv, path) DB_ENV *dbenv; const char *path; { int ret; if (DB_GLOBAL(j_unlink) != NULL) ret = DB_GLOBAL(j_unlink)(path); else #ifdef HAVE_VXWORKS RETRY_CHK((unlink((char *)path)), ret); #else RETRY_CHK((unlink(path)), ret); #endif /* * !!! * The results of unlink are file system driver specific on VxWorks. * In the case of removing a file that did not exist, some, at least, * return an error, but with an errno of 0, not ENOENT. We do not * have to test for the explicitly, the RETRY_CHK macro resets "ret" * to be the errno, and so we'll just slide right on through. * * XXX * We shouldn't be testing for an errno of ENOENT here, but ENOENT * signals that a file is missing, and we attempt to unlink things * (such as v. 2.x environment regions, in DB_ENV->remove) that we * are expecting not to be there. Reporting errors in these cases * is annoying. */ if (ret != 0 && ret != ENOENT) __db_err(dbenv, "unlink: %s: %s", path, strerror(ret)); return (ret); }