66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/*
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* Copyright (C) 2015 Cyril Hrubis <chrubis@suse.cz>
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*
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* Based on futextest (futext_wait_uninitialized_heap.c)
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* written by KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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*
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* Licensed under the GNU GPLv2 or later.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* Wait on uninitialized heap. It shold be zero and FUTEX_WAIT should return
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* immediately. This test tests zero page handling in futex code.
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*/
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#include <errno.h>
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#include "test.h"
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#include "safe_macros.h"
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#include "futextest.h"
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const char *TCID="futex_wait04";
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const int TST_TOTAL=1;
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static struct timespec to = {.tv_sec = 0, .tv_nsec = 10000};
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static void verify_futex_wait(void)
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{
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int res;
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void *buf;
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size_t pagesize = getpagesize();
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buf = SAFE_MMAP(NULL, NULL, pagesize, PROT_READ|PROT_WRITE,
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MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
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res = futex_wait(buf, 1, &to, 0);
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if (res == -1 && errno == EWOULDBLOCK)
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tst_resm(TPASS | TERRNO, "futex_wait() returned %i", res);
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else
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tst_resm(TFAIL | TERRNO, "futex_wait() returned %i", res);
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SAFE_MUNMAP(NULL, buf, pagesize);
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}
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int main(int argc, char *argv[])
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{
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int lc;
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tst_parse_opts(argc, argv, NULL, NULL);
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for (lc = 0; TEST_LOOPING(lc); lc++)
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verify_futex_wait();
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tst_exit();
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}
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