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Annotation of prex-old/usr/lib/posix/file/__file.c, Revision 1.1.1.1

1.1       nbrk        1: /*
                      2:  * Copyright (c) 2007, Kohsuke Ohtani
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  * 3. Neither the name of the author nor the names of any co-contributors
                     14:  *    may be used to endorse or promote products derived from this software
                     15:  *    without specific prior written permission.
                     16:  *
                     17:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
                     18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
                     21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     27:  * SUCH DAMAGE.
                     28:  */
                     29:
                     30: #include <prex/prex.h>
                     31: #include <prex/posix.h>
                     32: #include <server/object.h>
                     33: #include <server/stdmsg.h>
                     34: #include <server/fs.h>
                     35:
                     36: #include <stddef.h>
                     37:
                     38: object_t __fs_obj;
                     39:
                     40: /*
                     41:  * This is called first when task is started
                     42:  */
                     43: void
                     44: __file_init(void)
                     45: {
                     46:        int err;
                     47:
                     48:        /*
                     49:         * Look up file system server
                     50:         */
                     51:        err = object_lookup(OBJNAME_FS, &__fs_obj);
                     52:        if (err)
                     53:                __fs_obj = 0;
                     54: }
                     55:
                     56: /*
                     57:  * Clean up
                     58:  */
                     59: void
                     60: __file_exit(void)
                     61: {
                     62:        struct msg m;
                     63:
                     64:        /* Notify to file system server */
                     65:        if (__fs_obj != 0) {
                     66:                m.hdr.code = FS_EXIT;
                     67:                msg_send(__fs_obj, &m, sizeof(m));
                     68:        }
                     69: }
                     70:
                     71: /*
                     72:  * Notify to file system server.
                     73:  * This routine is used by native task which uses file system.
                     74:  */
                     75: void
                     76: fslib_init(void)
                     77: {
                     78:        struct msg m;
                     79:
                     80:        if (__fs_obj == 0)
                     81:                __file_init();
                     82:
                     83:        m.hdr.code = FS_REGISTER;
                     84:        msg_send(__fs_obj, &m, sizeof(m));
                     85: }
                     86:
                     87:
                     88: /*
                     89:  * Clean up (native task)
                     90:  */
                     91: void
                     92: fslib_exit(void)
                     93: {
                     94:
                     95:        __file_exit();
                     96: }
                     97: