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Mon, 26 May 2025 00:35:12 -0700 (PDT) Received: from 127.0.0.1localhost ([148.252.132.24]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ad52d43840esm1622780266b.87.2025.05.26.00.35.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 May 2025 00:35:11 -0700 (PDT) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: asml.silence@gmail.com Subject: [PATCH liburing 2/2] io_uring/tests: add read/write mock file tests Date: Mon, 26 May 2025 08:36:18 +0100 Message-ID: <564def2932f88ec166fd494eed5b19d51b9ab58b.1748244826.git.asml.silence@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Signed-off-by: Pavel Begunkov --- test/mock_tests.c | 115 +++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 114 insertions(+), 1 deletion(-) diff --git a/test/mock_tests.c b/test/mock_tests.c index 5f3063ff..d1253ebb 100644 --- a/test/mock_tests.c +++ b/test/mock_tests.c @@ -17,6 +17,11 @@ static struct io_uring mgr_ring; static __u64 mock_features; static int mgr_fd; +static bool has_feature(int feature) +{ + return mock_features >= feature; +} + static int setup_mgr(void) { struct io_uring_mock_probe mp; @@ -228,7 +233,7 @@ static int test_cmds(void) return 1; } - if (IORING_MOCK_FEAT_CMD_COPY < mock_features) { + if (has_feature(IORING_MOCK_FEAT_CMD_COPY)) { ret = test_regvec_cmd(&ring, mock_fd); if (ret) { fprintf(stderr, "test_regvec_cmd() failed\n"); @@ -242,6 +247,108 @@ static int test_cmds(void) return 0; } +static int test_reads(struct io_uring *ring, int mock_fd, void *buffer) +{ + struct io_uring_cqe *cqe; + struct io_uring_sqe *sqe; + int io_len = 4096; + int nr_reqs = 16; + int i, ret; + + for (i = 0; i < nr_reqs; i++) { + sqe = io_uring_get_sqe(ring); + io_uring_prep_read(sqe, mock_fd, buffer, io_len, 0); + sqe->user_data = i; + } + + ret = io_uring_submit(ring); + if (ret != nr_reqs) { + fprintf(stderr, "submit got %d, wanted %d\n", ret, nr_reqs); + return T_EXIT_FAIL; + } + + for (i = 0; i < nr_reqs; i++) { + ret = io_uring_wait_cqe(ring, &cqe); + if (ret) { + fprintf(stderr, "wait_cqe=%d\n", ret); + return T_EXIT_FAIL; + } + if (cqe->res != io_len) { + fprintf(stderr, "unexpected cqe res %i, data %i\n", + cqe->res, (int)cqe->user_data); + return T_EXIT_FAIL; + } + io_uring_cqe_seen(ring, cqe); + } + return 0; +} + +static int test_rw(void) +{ + void *buffer; + struct io_uring ring; + int ret, i; + + if (!has_feature(IORING_MOCK_FEAT_RW_ZERO)) { + printf("no mock read-write support, skip\n"); + return T_EXIT_SKIP; + } + + buffer = malloc(4096); + if (!buffer) { + fprintf(stderr, "can't allocate buffers\n"); + return T_EXIT_FAIL; + } + + ret = io_uring_queue_init(32, &ring, 0); + if (ret) { + fprintf(stderr, "ring setup failed: %d\n", ret); + return 1; + } + + for (i = 0; i < 8; i++) { + struct io_uring_mock_create mc; + bool nowait = i & 1; + bool async = i & 2; + bool poll = i & 4; + int mock_fd; + + memset(&mc, 0, sizeof(mc)); + if (poll) { + if (!has_feature(IORING_MOCK_FEAT_POLL)) + continue; + mc.flags |= IORING_MOCK_CREATE_F_POLL; + } + if (nowait) { + if (!has_feature(IORING_MOCK_FEAT_RW_NOWAIT)) + continue; + mc.flags |= IORING_MOCK_CREATE_F_SUPPORT_NOWAIT; + } + if (async) { + if (!has_feature(IORING_MOCK_FEAT_RW_ASYNC)) + continue; + mc.rw_delay_ns = 1000 * 1000 * 50; + } + mc.file_size = 10 * (1UL << 20); + if (create_mock_file(&mc)) + return T_EXIT_FAIL; + mock_fd = mc.out_fd; + + ret = test_reads(&ring, mock_fd, buffer); + if (ret) { + fprintf(stderr, "rw failed %i/%i/%i\n", + nowait, async, poll); + return T_EXIT_FAIL; + } + + close(mock_fd); + } + + free(buffer); + io_uring_queue_exit(&ring); + return 0; +} + int main(int argc, char *argv[]) { int ret; @@ -254,6 +361,12 @@ int main(int argc, char *argv[]) if (ret) return T_EXIT_FAIL; + ret = test_rw(); + if (ret) { + fprintf(stderr, "test_rw failed %i\n", ret); + return T_EXIT_FAIL; + } + io_uring_queue_exit(&mgr_ring); close(mgr_fd); return 0; -- 2.49.0