From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on gnuweeb.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=ALL_TRUSTED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NO_DNS_FOR_FROM,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 Received: from localhost.localdomain (unknown [182.2.38.99]) by gnuweeb.org (Postfix) with ESMTPSA id 59E6E80C19; Fri, 2 Sep 2022 01:18:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gnuweeb.org; s=default; t=1662081490; bh=KoJLZCOZpW4i2JyML4Rng3L4f+a0ef7DGJve5pJ48ik=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sV0Q/iPaUbqF85ibtGiT4jMfhAZaeBhSttSPCTuLM2oFjq2pO+nKDZanCh1l9Vetg AUNpwVgYIw9RNd1vmt9OPgeoMIPmTfcDyeWbfYhcSeKFrsAl7NCApnre50mVoijXEm pQzjdXIkizncM35xqzEIaOoPsOwdBBTBeoWFUzaGt+AqxINFYq6am0nIriy9OsySm2 SjUx0aewOfqjQSHGY7PW15QSIH3UmrGCrSii+pnT7TOb5rsMMD5iSysjdaoHe+Maf3 CywK91BsoSHfbTzWP2PQYPVV31f3QqT6/6Xok2JbfvYMPnJdUknhYUiB3SbVisgdgR sFgAQCVJ2etnQ== From: Ammar Faizi To: Jens Axboe Cc: Ammar Faizi , Dylan Yudaken , Facebook Kernel Team , Pavel Begunkov , io-uring Mailing List , GNU/Weeb Mailing List , Kanna Scarlet , Muhammad Rizki Subject: [RESEND PATCH liburing v1 03/12] t/socket-rw: Don't brute force the port number Date: Fri, 2 Sep 2022 08:17:43 +0700 Message-Id: <20220902011548.2506938-4-ammar.faizi@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220902011548.2506938-1-ammar.faizi@intel.com> References: <20220902011548.2506938-1-ammar.faizi@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit List-Id: From: Ammar Faizi Don't brute force the port number, use `t_bind_ephemeral_port()`, much simpler and reliable for choosing a port number that is not in use. Cc: Dylan Yudaken Cc: Facebook Kernel Team Cc: Pavel Begunkov Signed-off-by: Ammar Faizi --- test/socket-rw.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/test/socket-rw.c b/test/socket-rw.c index 4fbf032..6211b01 100644 --- a/test/socket-rw.c +++ b/test/socket-rw.c @@ -11,58 +11,49 @@ #include #include #include #include #include #include #include #include #include #include "liburing.h" +#include "helpers.h" int main(int argc, char *argv[]) { int p_fd[2], ret; int32_t recv_s0; int32_t val = 1; struct sockaddr_in addr; struct iovec iov_r[1], iov_w[1]; if (argc > 1) return 0; srand(getpid()); recv_s0 = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, IPPROTO_TCP); ret = setsockopt(recv_s0, SOL_SOCKET, SO_REUSEPORT, &val, sizeof(val)); assert(ret != -1); ret = setsockopt(recv_s0, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)); assert(ret != -1); addr.sin_family = AF_INET; addr.sin_addr.s_addr = inet_addr("127.0.0.1"); - - do { - addr.sin_port = htons((rand() % 61440) + 4096); - ret = bind(recv_s0, (struct sockaddr*)&addr, sizeof(addr)); - if (!ret) - break; - if (errno != EADDRINUSE) { - perror("bind"); - exit(1); - } - } while (1); + assert(!t_bind_ephemeral_port(recv_s0, &addr)); ret = listen(recv_s0, 128); assert(ret != -1); p_fd[1] = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, IPPROTO_TCP); val = 1; ret = setsockopt(p_fd[1], IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val)); assert(ret != -1); int32_t flags = fcntl(p_fd[1], F_GETFL, 0); assert(flags != -1); -- Ammar Faizi