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107 lines
3.3 KiB
107 lines
3.3 KiB
/* |
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* This file is part of vmsplice strace test. |
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* |
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* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include "tests.h" |
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#include <asm/unistd.h> |
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#if defined __NR_vmsplice |
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# include <assert.h> |
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# include <stdio.h> |
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# include <unistd.h> |
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# include <sys/uio.h> |
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int |
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main(void) |
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{ |
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tprintf("%s", ""); |
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int fds[2]; |
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if (pipe(fds)) |
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perror_msg_and_fail("pipe"); |
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assert(0 == fds[0]); |
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assert(1 == fds[1]); |
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static const char w0_c[] = "012"; |
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const char *w0_d = hexdump_strdup(w0_c); |
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void *w0 = tail_memdup(w0_c, LENGTH_OF(w0_c)); |
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static const char w1_c[] = "34567"; |
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const char *w1_d = hexdump_strdup(w1_c); |
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void *w1 = tail_memdup(w1_c, LENGTH_OF(w1_c)); |
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static const char w2_c[] = "89abcde"; |
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const char *w2_d = hexdump_strdup(w2_c); |
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void *w2 = tail_memdup(w2_c, LENGTH_OF(w2_c)); |
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const struct iovec iov_[] = { |
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{ |
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.iov_base = w0, |
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.iov_len = LENGTH_OF(w0_c) |
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}, { |
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.iov_base = w1, |
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.iov_len = LENGTH_OF(w1_c) |
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}, { |
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.iov_base = w2, |
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.iov_len = LENGTH_OF(w2_c) |
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} |
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}; |
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const struct iovec *iov = tail_memdup(iov_, sizeof(iov_)); |
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const unsigned int len = |
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LENGTH_OF(w0_c) + LENGTH_OF(w1_c) + LENGTH_OF(w2_c); |
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tprintf("vmsplice(1, [{iov_base=\"%s\", iov_len=%u}" |
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", {iov_base=\"%s\", iov_len=%u}" |
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", {iov_base=\"%s\", iov_len=%u}], %u, %s) = %u\n" |
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" * %u bytes in buffer 0\n" |
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" | 00000 %-49s %-16s |\n" |
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" * %u bytes in buffer 1\n" |
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" | 00000 %-49s %-16s |\n" |
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" * %u bytes in buffer 2\n" |
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" | 00000 %-49s %-16s |\n", |
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w0_c, LENGTH_OF(w0_c), w1_c, LENGTH_OF(w1_c), |
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w2_c, LENGTH_OF(w2_c), (unsigned int) ARRAY_SIZE(iov_), |
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"SPLICE_F_NONBLOCK", len, |
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LENGTH_OF(w0_c), w0_d, w0_c, |
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LENGTH_OF(w1_c), w1_d, w1_c, LENGTH_OF(w2_c), w2_d, w2_c); |
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const long rc = syscall(__NR_vmsplice, 1, iov, ARRAY_SIZE(iov_), 2); |
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if (rc < 0) |
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perror_msg_and_skip("vmsplice"); |
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assert(rc == (int) len); |
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tprintf("+++ exited with 0 +++\n"); |
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return 0; |
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} |
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#else |
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SKIP_MAIN_UNDEFINED("__NR_vmsplice") |
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#endif
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