/*- * 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_unlink.c,v 11.24 2002/07/12 18:56:53 bostic Exp $"; #endif /* not lint */ #ifndef NO_SYSTEM_INCLUDES #include <sys/types.h> #include <string.h> #include <unistd.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_overwrite(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; retry: ret = DB_GLOBAL(j_unlink) != NULL ? DB_GLOBAL(j_unlink)(path) : #ifdef HAVE_VXWORKS unlink((char *)path); #else unlink(path); #endif if (ret == -1) { if ((ret = __os_get_errno()) == EINTR) goto retry; /* * XXX * We really shouldn't be looking at this value ourselves, * but ENOENT usually 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're expecting not to * be there. Reporting errors in these cases is annoying. */ #ifdef HAVE_VXWORKS /* * XXX * 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. * * Code below falls through to original if-statement only * we didn't get a "successful" error. */ if (ret != 0) /* FALLTHROUGH */ #endif if (ret != ENOENT) __db_err(dbenv, "unlink: %s: %s", path, strerror(ret)); } return (ret); }