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Annotation of src/usr.bin/cvs/worklist.c, Revision 1.5

1.5     ! ray         1: /*     $OpenBSD: worklist.c,v 1.4 2006/03/15 13:32:41 niallo Exp $     */
1.1       joris       2: /*
                      3:  * Copyright (c) 2006 Joris Vink <joris@openbsd.org>
                      4:  * All rights reserved.
                      5:  *
                      6:  * Redistribution and use in source and binary forms, with or without
                      7:  * modification, are permitted provided that the following conditions
                      8:  * are met:
                      9:  *
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. The name of the author may not be used to endorse or promote products
                     13:  *    derived from this software without specific prior written permission.
                     14:  *
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
                     16:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
                     17:  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
                     18:  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
                     19:  * EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLUDING, BUT NOT LIMITED TO,
                     20:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
                     21:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
                     22:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
                     23:  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
                     24:  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     25:  */
                     26:
                     27: #include "includes.h"
                     28:
                     29: #include "log.h"
                     30: #include "worklist.h"
                     31: #include "xmalloc.h"
                     32:
                     33: /*
1.4       niallo     34:  * adds a path to a worklist.
1.1       joris      35:  */
                     36: void
                     37: cvs_worklist_add(const char *path, struct cvs_wklhead *worklist)
                     38: {
                     39:        size_t len;
                     40:        struct cvs_worklist *wkl;
                     41:        sigset_t old, new;
                     42:
1.5     ! ray        43:        wkl = xcalloc(1, sizeof(*wkl));
1.1       joris      44:
                     45:        len = strlcpy(wkl->wkl_path, path, sizeof(wkl->wkl_path));
                     46:        if (len >= sizeof(wkl->wkl_path))
                     47:                fatal("path truncation in cvs_worklist_add");
                     48:
                     49:        sigfillset(&new);
                     50:        sigprocmask(SIG_BLOCK, &new, &old);
                     51:        SLIST_INSERT_HEAD(worklist, wkl, wkl_list);
                     52:        sigprocmask(SIG_SETMASK, &old, NULL);
                     53: }
                     54:
                     55: /*
                     56:  * run over the given worklist, calling cb for each element.
                     57:  * this is just like cvs_worklist_clean(), except we block signals first.
                     58:  */
                     59: void
                     60: cvs_worklist_run(struct cvs_wklhead *list, void (*cb)(struct cvs_worklist *))
                     61: {
                     62:        sigset_t old, new;
1.2       joris      63:        struct cvs_worklist *wkl;
1.1       joris      64:
                     65:        sigfillset(&new);
                     66:        sigprocmask(SIG_BLOCK, &new, &old);
                     67:
                     68:        cvs_worklist_clean(list, cb);
                     69:
1.2       joris      70:        while ((wkl = SLIST_FIRST(list)) != NULL) {
                     71:                SLIST_REMOVE_HEAD(list, wkl_list);
                     72:                xfree(wkl);
                     73:        }
                     74:
1.1       joris      75:        sigprocmask(SIG_SETMASK, &old, NULL);
                     76: }
                     77:
                     78: /*
1.2       joris      79:  * pass elements to the specified callback, which has to be signal safe.
1.1       joris      80:  */
                     81: void
                     82: cvs_worklist_clean(struct cvs_wklhead *list, void (*cb)(struct cvs_worklist *))
                     83: {
                     84:        struct cvs_worklist *wkl;
                     85:
1.3       niallo     86:        SLIST_FOREACH(wkl, list, wkl_list)
                     87:            cb(wkl);
1.1       joris      88: }
                     89:
                     90: void
                     91: cvs_worklist_unlink(struct cvs_worklist *wkl)
                     92: {
                     93:        (void)unlink(wkl->wkl_path);
                     94: }