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Diffstat (limited to 'winsup/cygwin/delqueue.cc')
-rw-r--r-- | winsup/cygwin/delqueue.cc | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/winsup/cygwin/delqueue.cc b/winsup/cygwin/delqueue.cc deleted file mode 100644 index 08a17fd..0000000 --- a/winsup/cygwin/delqueue.cc +++ /dev/null @@ -1,101 +0,0 @@ -/* delqueue.cc - - Copyright 1996, 1998 Cygnus Solutions. - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#include "winsup.h" - -/* FIXME: this delqueue module is very flawed and should be rewritten. - First, having an array of a fixed size for keeping track of the - unlinked but not yet deleted files is bad. Second, some programs - will unlink files and then create a new one in the same location - and this behavior is not supported in the current code. Probably - we should find a move/rename function that will work on open files, - and move delqueue files to some special location or some such - hack... */ - -void -delqueue_list::init () -{ - empty = 1; - memset(inuse, 0, MAX_DELQUEUES_PENDING); -} - -void -delqueue_list::queue_file (const char *dosname) -{ - char temp[MAX_PATH], *end; - GetFullPathName (dosname, sizeof (temp), temp, &end); - - /* Note about race conditions: The only time we get to this point is - when a delete fails because someone's holding the descriptor open. - In those cases, other programs will be unable to delete the file - also, so any entries referring to that file will not be removed - from the queue while we're here. */ - - if (!empty) - { - /* check for duplicates */ - for (int i=0; i < MAX_DELQUEUES_PENDING; i++) - if (inuse[i] && strcmp(name[i], temp) == 0) - return; - } - - for (int i = 0; i < MAX_DELQUEUES_PENDING; i++) - if (!inuse[i]) - { - /* set the name first, in case someone else is running the - queue they'll get a valid name */ - strcpy(name[i], temp); - inuse[i] = 1; - empty = 0; - debug_printf ("adding '%s' to queue %d", temp, i); - return; - } - - system_printf ("Out of queue slots"); -} - -void -delqueue_list::process_queue () -{ - if (empty) - return; - /* We set empty to 1 here, rather than later, to avoid a race - condition - some other program might queue up a file while we're - processing, and it will zero out empty also. */ - empty = 1; /* but might get set to zero again, below */ - - syscall_printf ("Running delqueue"); - - for (int i = 0; i < MAX_DELQUEUES_PENDING; i++) - if (inuse[i]) - { - if (DeleteFileA (name[i])) - { - syscall_printf ("Deleted %s", name[i]); - inuse[i] = 0; - } - else - { - int res = GetLastError (); - empty = 0; - if (res == ERROR_SHARING_VIOLATION || - (os_being_run != winNT && res == ERROR_ACCESS_DENIED)) - { - /* File still inuse, that's ok */ - syscall_printf ("Still using %s", name[i]); - } - else - { - syscall_printf ("Hmm, don't know what to do with '%s', %E", name[i]); - inuse[i] = 0; - } - } - } -} |