| 1 | /*
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| 2 | * Copyright (c) 2015 Michal Koutny
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup libc
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | */
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| 34 |
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| 35 | #include <errno.h>
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| 36 | #include <ipc/taskman.h>
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| 37 | #include <taskman.h>
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| 38 |
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| 39 | #include <stdio.h>
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| 40 |
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| 41 | //TODO better filename?
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| 42 | #include "private/ns.h"
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| 43 |
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| 44 | static int taskman_ask_callback(async_sess_t *session_tm)
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| 45 | {
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| 46 | async_exch_t *exch = async_exchange_begin(session_tm);
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| 47 | int rc = async_connect_to_me(
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| 48 | exch, TASKMAN_LOADER_CALLBACK, 0, 0, NULL, NULL);
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| 49 | async_exchange_end(exch);
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| 50 |
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| 51 | return rc;
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| 52 | }
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| 53 |
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| 54 | static async_sess_t *taskman_connect_to_ns(async_sess_t *session_tm)
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| 55 | {
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| 56 | async_exch_t *exch = async_exchange_begin(session_tm);
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| 57 | async_sess_t *session_ns = async_connect_me_to(EXCHANGE_ATOMIC,
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| 58 | exch, TASKMAN_LOADER_TO_NS, 0, 0);
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| 59 | async_exchange_end(exch);
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| 60 |
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| 61 | return session_ns;
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| 62 | }
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| 63 |
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| 64 | /** Set up phones upon being spawned by taskman
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| 65 | *
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| 66 | * Assumes primary session exists that is connected to taskman.
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| 67 | * After handshake, taskman is connected to us (see, it's opposite) and broker
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| 68 | * session is set up according to taskman.
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| 69 | *
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| 70 | *
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| 71 | * @return Session to broker (naming service) or NULL (sets errno).
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| 72 | */
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| 73 | async_sess_t *taskman_handshake(void)
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| 74 | {
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| 75 | int rc = taskman_ask_callback(session_primary);
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| 76 | if (rc != EOK) {
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| 77 | errno = rc;
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| 78 | return NULL;
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| 79 | }
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| 80 |
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| 81 | async_sess_t *session_ns = taskman_connect_to_ns(session_primary);
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| 82 | if (session_ns == NULL) {
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| 83 | errno = ENOENT;
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| 84 | }
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| 85 |
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| 86 | return session_ns;
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| 87 | }
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| 88 |
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| 89 | /** @}
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| 90 | */
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