mmsg.c revision a50ec349456c79467d58ced70787a44d4c3d309c
138a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin/* 238a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * Copyright (c) 2014 Masatake YAMATO <yamato@redhat.com> 34e66672923bc480d9cb7c158e39e4a67322ab2cfDmitry V. Levin * Copyright (c) 2014-2016 Dmitry V. Levin <ldv@altlinux.org> 438a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * All rights reserved. 538a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * 638a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * Redistribution and use in source and binary forms, with or without 738a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * modification, are permitted provided that the following conditions 838a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * are met: 938a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * 1. Redistributions of source code must retain the above copyright 1038a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * notice, this list of conditions and the following disclaimer. 1138a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * 2. Redistributions in binary form must reproduce the above copyright 1238a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * notice, this list of conditions and the following disclaimer in the 1338a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * documentation and/or other materials provided with the distribution. 1438a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * 3. The name of the author may not be used to endorse or promote products 1538a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * derived from this software without specific prior written permission. 1638a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * 1738a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1838a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1938a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2038a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2138a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2238a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2338a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2438a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2538a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2638a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2738a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin */ 2838a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin 290c8853c3c39fe11f1a80456e744d7db861c39df2Dmitry V. Levin#include "tests.h" 306e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin# include <sys/syscall.h> 314e66672923bc480d9cb7c158e39e4a67322ab2cfDmitry V. Levin 32eb4649a0dc0bfaa0df336de5dc95b41612e0b42dDmitry V. Levin#if (defined __NR_sendmmsg || defined HAVE_SENDMMSG) \ 33eb4649a0dc0bfaa0df336de5dc95b41612e0b42dDmitry V. Levin && (defined __NR_recvmmsg || defined HAVE_RECVMMSG) 344e66672923bc480d9cb7c158e39e4a67322ab2cfDmitry V. Levin 354e66672923bc480d9cb7c158e39e4a67322ab2cfDmitry V. Levin# include <assert.h> 364e66672923bc480d9cb7c158e39e4a67322ab2cfDmitry V. Levin# include <errno.h> 3719d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin# include <stdio.h> 384e66672923bc480d9cb7c158e39e4a67322ab2cfDmitry V. Levin# include <unistd.h> 39993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO 404b38ce956c270a28fd0aa018f448b082371a08b1Dmitry V. Levin# include "msghdr.h" 4119d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin 426e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levinstatic int 436e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levinsend_mmsg(int fd, struct mmsghdr *vec, unsigned int vlen, unsigned int flags) 446e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin{ 456e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin int rc; 466e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin#ifdef __NR_sendmmsg 476e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin rc = syscall(__NR_sendmmsg, (long) fd, vec, (unsigned long) vlen, 486e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin (unsigned long) flags); 496e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin if (rc >= 0 || ENOSYS != errno) 506e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin return rc; 51536a0353ddf11a6edc78c10102c046bc58221ff0Dmitry V. Levin tprintf("sendmmsg(%d, %p, %u, MSG_DONTROUTE|MSG_NOSIGNAL)" 5219d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin " = -1 ENOSYS (%m)\n", fd, vec, vlen); 536e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin#endif 546e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin#ifdef HAVE_SENDMMSG 556e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin rc = sendmmsg(fd, vec, vlen, flags); 566e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin#endif 576e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin return rc; 586e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin} 596e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin 606e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levinstatic int 616e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levinrecv_mmsg(int fd, struct mmsghdr *vec, unsigned int vlen, unsigned int flags, 626e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin struct timespec *timeout) 636e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin{ 646e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin int rc; 65eb4649a0dc0bfaa0df336de5dc95b41612e0b42dDmitry V. Levin#ifdef __NR_recvmmsg 666e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin rc = syscall(__NR_recvmmsg, (long) fd, vec, (unsigned long) vlen, 676e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin (unsigned long) flags, timeout); 686e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin if (rc >= 0 || ENOSYS != errno) 696e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin return rc; 70536a0353ddf11a6edc78c10102c046bc58221ff0Dmitry V. Levin tprintf("recvmmsg(%d, %p, %u, MSG_DONTWAIT, NULL)" 7119d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin " = -1 ENOSYS (%m)\n", fd, vec, vlen); 726e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin#endif 73eb4649a0dc0bfaa0df336de5dc95b41612e0b42dDmitry V. Levin#ifdef HAVE_RECVMMSG 746e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin rc = recvmmsg(fd, vec, vlen, flags, timeout); 756e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin#endif 766e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin return rc; 776e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin} 786e815ce640200462cd29a106197dfc2feee7cc6aDmitry V. Levin 79993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATOint 80993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATOmain(void) 81993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO{ 82536a0353ddf11a6edc78c10102c046bc58221ff0Dmitry V. Levin tprintf("%s", ""); 83536a0353ddf11a6edc78c10102c046bc58221ff0Dmitry V. Levin 84d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin int fds[2]; 85d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin if (socketpair(AF_UNIX, SOCK_DGRAM, 0, fds)) 8635eb03fdf74b67c558b2eef11a041e99a2ae5dd9Dmitry V. Levin perror_msg_and_skip("socketpair"); 87d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin assert(0 == fds[0]); 88d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin assert(1 == fds[1]); 8935eb03fdf74b67c558b2eef11a041e99a2ae5dd9Dmitry V. Levin 90d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin static const char w0_c[] = "012"; 91d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const char *w0_d = hexdump_strdup(w0_c); 92d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin void *w0 = tail_memdup(w0_c, LENGTH_OF(w0_c)); 9319d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin 94d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin static const char w1_c[] = "34567"; 95d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const char *w1_d = hexdump_strdup(w1_c); 96d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin void *w1 = tail_memdup(w1_c, LENGTH_OF(w1_c)); 97993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO 98d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin static const char w2_c[] = "89abcde"; 99d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const char *w2_d = hexdump_strdup(w2_c); 100d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin void *w2 = tail_memdup(w2_c, LENGTH_OF(w2_c)); 101d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin 102d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const struct iovec w0_iov_[] = { 103993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO { 104d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .iov_base = w0, 105d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .iov_len = LENGTH_OF(w0_c) 106993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO }, { 107d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .iov_base = w1, 108d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .iov_len = LENGTH_OF(w1_c) 109993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO } 110993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO }; 111d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin struct iovec *w0_iov = tail_memdup(w0_iov_, sizeof(w0_iov_)); 112993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO 113d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const struct iovec w1_iov_[] = { 114d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin { 115d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .iov_base = w2, 116d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .iov_len = LENGTH_OF(w2_c) 117d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin } 118d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin }; 119d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin struct iovec *w1_iov = tail_memdup(w1_iov_, sizeof(w1_iov_)); 120d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin 121d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const struct mmsghdr w_mmh_[] = { 122993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO { 123993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO .msg_hdr = { 124d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .msg_iov = w0_iov, 125d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .msg_iovlen = ARRAY_SIZE(w0_iov_), 126993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO } 127993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO }, { 128993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO .msg_hdr = { 129d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .msg_iov = w1_iov, 130d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .msg_iovlen = ARRAY_SIZE(w1_iov_), 131993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO } 132993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO } 133993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO }; 134d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin void *w_mmh = tail_memdup(w_mmh_, sizeof(w_mmh_)); 135d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const unsigned int n_w_mmh = ARRAY_SIZE(w_mmh_); 136993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO 137d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin int r = send_mmsg(1, w_mmh, n_w_mmh, MSG_DONTROUTE | MSG_NOSIGNAL); 13895cbf6ebfdbf4739fb9c65d46487cb0210b539a4Dmitry V. Levin if (r < 0 && errno == ENOSYS) 1394e66672923bc480d9cb7c158e39e4a67322ab2cfDmitry V. Levin perror_msg_and_skip("sendmmsg"); 140d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin assert(r == (int) n_w_mmh); 141d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin assert(close(1) == 0); 142a50ec349456c79467d58ced70787a44d4c3d309cDmitry V. Levin tprintf("sendmmsg(1, [{msg_hdr={msg_name=NULL, msg_namelen=0" 14326f90afc686afcf01807e75515541085081f670bDmitry V. Levin ", msg_iov=[{\"%s\", %u}, {\"%s\", %u}], msg_iovlen=%u" 144a50ec349456c79467d58ced70787a44d4c3d309cDmitry V. Levin ", msg_controllen=0, msg_flags=0}, msg_len=%u}" 145a50ec349456c79467d58ced70787a44d4c3d309cDmitry V. Levin ", {msg_hdr={msg_name=NULL, msg_namelen=0" 14626f90afc686afcf01807e75515541085081f670bDmitry V. Levin ", msg_iov=[{\"%s\", %u}], msg_iovlen=%u" 147a50ec349456c79467d58ced70787a44d4c3d309cDmitry V. Levin ", msg_controllen=0, msg_flags=0}, msg_len=%u}], %u" 14819d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin ", MSG_DONTROUTE|MSG_NOSIGNAL) = %d\n" 14919d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin " = %u buffers in vector 0\n" 15019d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin " * %u bytes in buffer 0\n" 151d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin " | 00000 %-49s %-16s |\n" 15219d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin " * %u bytes in buffer 1\n" 153d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin " | 00000 %-49s %-16s |\n" 15419d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin " = %u buffers in vector 1\n" 15519d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin " * %u bytes in buffer 0\n" 156d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin " | 00000 %-49s %-16s |\n", 15726f90afc686afcf01807e75515541085081f670bDmitry V. Levin w0_c, LENGTH_OF(w0_c), 158d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin w1_c, LENGTH_OF(w1_c), 15926f90afc686afcf01807e75515541085081f670bDmitry V. Levin ARRAY_SIZE(w0_iov_), 160d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin LENGTH_OF(w0_c) + LENGTH_OF(w1_c), 16126f90afc686afcf01807e75515541085081f670bDmitry V. Levin w2_c, LENGTH_OF(w2_c), ARRAY_SIZE(w1_iov_), 16226f90afc686afcf01807e75515541085081f670bDmitry V. Levin LENGTH_OF(w2_c), 163d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin n_w_mmh, r, 164d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin ARRAY_SIZE(w0_iov_), LENGTH_OF(w0_c), w0_d, w0_c, 165d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin LENGTH_OF(w1_c), w1_d, w1_c, 166d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin ARRAY_SIZE(w1_iov_), LENGTH_OF(w2_c), w2_d, w2_c); 167d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin 168d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const unsigned int w_len = 169d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin LENGTH_OF(w0_c) + LENGTH_OF(w1_c) + LENGTH_OF(w2_c); 170d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const unsigned int r_len = (w_len + 1) / 2; 171d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin void *r0 = tail_alloc(r_len); 172d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin void *r1 = tail_alloc(r_len); 173d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin void *r2 = tail_alloc(r_len); 174d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const struct iovec r0_iov_[] = { 175d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin { 176d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .iov_base = r0, 177d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .iov_len = r_len 178d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin } 179d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin }; 180d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin struct iovec *r0_iov = tail_memdup(r0_iov_, sizeof(r0_iov_)); 181d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const struct iovec r1_iov_[] = { 182d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin { 183d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .iov_base = r1, 184d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .iov_len = r_len 185d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin }, 186d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin { 187d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .iov_base = r2, 188d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .iov_len = r_len 189d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin } 190d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin }; 191d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin struct iovec *r1_iov = tail_memdup(r1_iov_, sizeof(r1_iov_)); 192d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin 193d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const struct mmsghdr r_mmh_[] = { 194d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin { 195d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .msg_hdr = { 196d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .msg_iov = r0_iov, 197d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .msg_iovlen = ARRAY_SIZE(r0_iov_), 198d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin } 199d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin }, { 200d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .msg_hdr = { 201d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .msg_iov = r1_iov, 202d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin .msg_iovlen = ARRAY_SIZE(r1_iov_), 203d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin } 204d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin } 205d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin }; 206d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin void *r_mmh = tail_memdup(r_mmh_, sizeof(r_mmh_)); 207d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const unsigned int n_r_mmh = ARRAY_SIZE(r_mmh_); 208d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin 209d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin static const char r0_c[] = "01234567"; 210d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const char *r0_d = hexdump_strdup(r0_c); 211d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin static const char r1_c[] = "89abcde"; 212d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin const char *r1_d = hexdump_strdup(r1_c); 213d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin 214d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin assert(recv_mmsg(0, r_mmh, n_r_mmh, MSG_DONTWAIT, NULL) == (int) n_r_mmh); 215d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin assert(close(0) == 0); 216a50ec349456c79467d58ced70787a44d4c3d309cDmitry V. Levin tprintf("recvmmsg(0, [{msg_hdr={msg_name=NULL, msg_namelen=0" 21726f90afc686afcf01807e75515541085081f670bDmitry V. Levin ", msg_iov=[{\"%s\", %u}], msg_iovlen=%u" 218a50ec349456c79467d58ced70787a44d4c3d309cDmitry V. Levin ", msg_controllen=0, msg_flags=0}, msg_len=%u}" 219a50ec349456c79467d58ced70787a44d4c3d309cDmitry V. Levin ", {msg_hdr={msg_name=NULL, msg_namelen=0" 22026f90afc686afcf01807e75515541085081f670bDmitry V. Levin ", msg_iov=[{\"%s\", %u}, {\"\", %u}], msg_iovlen=%u" 221a50ec349456c79467d58ced70787a44d4c3d309cDmitry V. Levin ", msg_controllen=0, msg_flags=0}, msg_len=%u}], %u" 22219d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin ", MSG_DONTWAIT, NULL) = %d (left NULL)\n" 22319d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin " = %u buffers in vector 0\n" 22419d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin " * %u bytes in buffer 0\n" 225d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin " | 00000 %-49s %-16s |\n" 22619d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin " = %u buffers in vector 1\n" 22719d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin " * %u bytes in buffer 0\n" 228d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin " | 00000 %-49s %-16s |\n", 22926f90afc686afcf01807e75515541085081f670bDmitry V. Levin r0_c, r_len, ARRAY_SIZE(r0_iov_), LENGTH_OF(r0_c), 23026f90afc686afcf01807e75515541085081f670bDmitry V. Levin r1_c, r_len, r_len, ARRAY_SIZE(r1_iov_), LENGTH_OF(r1_c), 231d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin n_r_mmh, r, 232d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin ARRAY_SIZE(r0_iov_), LENGTH_OF(r0_c), r0_d, r0_c, 233d44707d889a9a69e3aaebd2535968957cbcddedbDmitry V. Levin ARRAY_SIZE(r1_iov_), LENGTH_OF(r1_c), r1_d, r1_c); 23419d10f89650554eb68050b1247c3018b263e95cbDmitry V. Levin 235536a0353ddf11a6edc78c10102c046bc58221ff0Dmitry V. Levin tprintf("+++ exited with 0 +++\n"); 236993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO return 0; 2374e66672923bc480d9cb7c158e39e4a67322ab2cfDmitry V. Levin} 2384e66672923bc480d9cb7c158e39e4a67322ab2cfDmitry V. Levin 239993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO#else 2404e66672923bc480d9cb7c158e39e4a67322ab2cfDmitry V. Levin 241eb4649a0dc0bfaa0df336de5dc95b41612e0b42dDmitry V. LevinSKIP_MAIN_UNDEFINED("(__NR_sendmmsg || HAVE_SENDMMSG) && (__NR_recvmmsg || HAVE_RECVMMSG)") 2424e66672923bc480d9cb7c158e39e4a67322ab2cfDmitry V. Levin 243993198deb3a0e3311e7a062451d141c5c410406cMasatake YAMATO#endif 244