| 1 | /*
|
|---|
| 2 | * Copyright (c) 2012 Vojtech Horky
|
|---|
| 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 | *
|
|---|
| 9 | * - Redistributions of source code must retain the above copyright
|
|---|
| 10 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 11 | * - Redistributions in binary form must reproduce the above copyright
|
|---|
| 12 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 13 | * documentation and/or other materials provided with the distribution.
|
|---|
| 14 | * - The name of the author may not be used to endorse or promote products
|
|---|
| 15 | * derived from this software without specific prior written permission.
|
|---|
| 16 | *
|
|---|
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|---|
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|---|
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|---|
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|---|
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|---|
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|---|
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|---|
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|---|
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|---|
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 27 | */
|
|---|
| 28 |
|
|---|
| 29 | #include <stdio.h>
|
|---|
| 30 | #include <stdlib.h>
|
|---|
| 31 | #include <sys/time.h>
|
|---|
| 32 | #include <io/console.h>
|
|---|
| 33 | #include <async.h>
|
|---|
| 34 | #include "../tester.h"
|
|---|
| 35 |
|
|---|
| 36 | #define DURATION_SECS 30
|
|---|
| 37 |
|
|---|
| 38 | const char *test_starve_ipc(void)
|
|---|
| 39 | {
|
|---|
| 40 | const char *err = NULL;
|
|---|
| 41 | console_ctrl_t *console = console_init(stdin, stdout);
|
|---|
| 42 | if (console == NULL) {
|
|---|
| 43 | return "Failed to init connection with console.";
|
|---|
| 44 | }
|
|---|
| 45 |
|
|---|
| 46 | struct timeval start;
|
|---|
| 47 | if (gettimeofday(&start, NULL) != 0) {
|
|---|
| 48 | err = "Failed getting the time";
|
|---|
| 49 | goto leave;
|
|---|
| 50 | }
|
|---|
| 51 |
|
|---|
| 52 | TPRINTF("Intensive computation shall be imagined (for %ds)...\n", DURATION_SECS);
|
|---|
| 53 | TPRINTF("Press a key to terminate prematurely...\n");
|
|---|
| 54 | while (true) {
|
|---|
| 55 | struct timeval now;
|
|---|
| 56 | if (gettimeofday(&now, NULL) != 0) {
|
|---|
| 57 | err = "Failed getting the time";
|
|---|
| 58 | goto leave;
|
|---|
| 59 | }
|
|---|
| 60 |
|
|---|
| 61 | if (tv_sub(&now, &start) >= DURATION_SECS * 1000000L)
|
|---|
| 62 | break;
|
|---|
| 63 |
|
|---|
| 64 | kbd_event_t ev;
|
|---|
| 65 | suseconds_t timeout = 0;
|
|---|
| 66 | bool has_event = console_get_kbd_event_timeout(console, &ev, &timeout);
|
|---|
| 67 | if (has_event && (ev.type == KEY_PRESS)) {
|
|---|
| 68 | TPRINTF("Key %d pressed, terminating.\n", ev.key);
|
|---|
| 69 | break;
|
|---|
| 70 | }
|
|---|
| 71 | }
|
|---|
| 72 |
|
|---|
| 73 | // FIXME - unless a key was pressed, the answer leaked as no one
|
|---|
| 74 | // will wait for it.
|
|---|
| 75 | // We cannot use async_forget() directly, though. Something like
|
|---|
| 76 | // console_forget_pending_kbd_event() shall come here.
|
|---|
| 77 |
|
|---|
| 78 | TPRINTF("Terminating...\n");
|
|---|
| 79 |
|
|---|
| 80 | leave:
|
|---|
| 81 | console_done(console);
|
|---|
| 82 |
|
|---|
| 83 | return err;
|
|---|
| 84 | }
|
|---|
