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-rw-r--r--src/spdk/test/unit/lib/util/pipe.c/.gitignore1
-rw-r--r--src/spdk/test/unit/lib/util/pipe.c/Makefile38
-rw-r--r--src/spdk/test/unit/lib/util/pipe.c/pipe_ut.c653
3 files changed, 692 insertions, 0 deletions
diff --git a/src/spdk/test/unit/lib/util/pipe.c/.gitignore b/src/spdk/test/unit/lib/util/pipe.c/.gitignore
new file mode 100644
index 000000000..493aa5572
--- /dev/null
+++ b/src/spdk/test/unit/lib/util/pipe.c/.gitignore
@@ -0,0 +1 @@
+pipe_ut
diff --git a/src/spdk/test/unit/lib/util/pipe.c/Makefile b/src/spdk/test/unit/lib/util/pipe.c/Makefile
new file mode 100644
index 000000000..99592cfb4
--- /dev/null
+++ b/src/spdk/test/unit/lib/util/pipe.c/Makefile
@@ -0,0 +1,38 @@
+#
+# BSD LICENSE
+#
+# Copyright (c) Intel Corporation.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in
+# the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Intel Corporation nor the names of its
+# contributors may be used to endorse or promote products derived
+# from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+SPDK_ROOT_DIR := $(abspath $(CURDIR)/../../../../..)
+
+TEST_FILE = pipe_ut.c
+
+include $(SPDK_ROOT_DIR)/mk/spdk.unittest.mk
diff --git a/src/spdk/test/unit/lib/util/pipe.c/pipe_ut.c b/src/spdk/test/unit/lib/util/pipe.c/pipe_ut.c
new file mode 100644
index 000000000..8ac76dfe9
--- /dev/null
+++ b/src/spdk/test/unit/lib/util/pipe.c/pipe_ut.c
@@ -0,0 +1,653 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright (c) Intel Corporation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "spdk/stdinc.h"
+
+#include "spdk_cunit.h"
+
+#include "util/pipe.c"
+#include "common/lib/test_env.c"
+
+static void
+test_create_destroy(void)
+{
+ struct spdk_pipe *pipe;
+ uint8_t mem[10];
+
+ pipe = spdk_pipe_create(mem, sizeof(mem));
+ SPDK_CU_ASSERT_FATAL(pipe != NULL);
+
+ spdk_pipe_destroy(pipe);
+}
+
+static void
+test_write_get_buffer(void)
+{
+ struct spdk_pipe *pipe;
+ uint8_t mem[10];
+ struct iovec iovs[2];
+ int rc;
+
+ pipe = spdk_pipe_create(mem, sizeof(mem));
+ SPDK_CU_ASSERT_FATAL(pipe != NULL);
+
+ /* Get some available memory. */
+ rc = spdk_pipe_writer_get_buffer(pipe, 5, iovs);
+ CU_ASSERT(rc == 5);
+ CU_ASSERT(iovs[0].iov_base == mem);
+ CU_ASSERT(iovs[0].iov_len == 5);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 0);
+ CU_ASSERT(pipe->read == 0);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get 0 bytes. */
+ rc = spdk_pipe_writer_get_buffer(pipe, 0, iovs);
+ CU_ASSERT(rc == 0);
+ CU_ASSERT(iovs[0].iov_base == NULL);
+ CU_ASSERT(iovs[0].iov_len == 0);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 0);
+ CU_ASSERT(pipe->read == 0);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get all available memory */
+ rc = spdk_pipe_writer_get_buffer(pipe, 9, iovs);
+ CU_ASSERT(rc == 9);
+ CU_ASSERT(iovs[0].iov_base == mem);
+ CU_ASSERT(iovs[0].iov_len == 9);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 0);
+ CU_ASSERT(pipe->read == 0);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get the full size of the data buffer backing the pipe, which isn't allowed */
+ rc = spdk_pipe_writer_get_buffer(pipe, 10, iovs);
+ CU_ASSERT(rc == 9);
+ CU_ASSERT(iovs[0].iov_base == mem);
+ CU_ASSERT(iovs[0].iov_len == 9);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 0);
+ CU_ASSERT(pipe->read == 0);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Advance the write pointer 7 bytes in. */
+ pipe->write = 7;
+
+ /* Get all of the available memory. */
+ rc = spdk_pipe_writer_get_buffer(pipe, 2, iovs);
+ CU_ASSERT(rc == 2);
+ CU_ASSERT(iovs[0].iov_base == (mem + 7));
+ CU_ASSERT(iovs[0].iov_len == 2);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 7);
+ CU_ASSERT(pipe->read == 0);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get more than the available memory */
+ rc = spdk_pipe_writer_get_buffer(pipe, 3, iovs);
+ CU_ASSERT(rc == 2);
+ CU_ASSERT(iovs[0].iov_base == (mem + 7));
+ CU_ASSERT(iovs[0].iov_len == 2);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 7);
+ CU_ASSERT(pipe->read == 0);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Advance the read pointer 3 bytes in. */
+ pipe->read = 3;
+
+ /* Get all of the available memory. */
+ rc = spdk_pipe_writer_get_buffer(pipe, 5, iovs);
+ CU_ASSERT(rc == 5);
+ CU_ASSERT(iovs[0].iov_base == (mem + 7));
+ CU_ASSERT(iovs[0].iov_len == 3);
+ CU_ASSERT(iovs[1].iov_base == mem);
+ CU_ASSERT(iovs[1].iov_len == 2);
+ CU_ASSERT(pipe->write == 7);
+ CU_ASSERT(pipe->read == 3);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get more than the available memory */
+ rc = spdk_pipe_writer_get_buffer(pipe, 6, iovs);
+ CU_ASSERT(rc == 5);
+ CU_ASSERT(iovs[0].iov_base == (mem + 7));
+ CU_ASSERT(iovs[0].iov_len == 3);
+ CU_ASSERT(iovs[1].iov_base == mem);
+ CU_ASSERT(iovs[1].iov_len == 2);
+ CU_ASSERT(pipe->write == 7);
+ CU_ASSERT(pipe->read == 3);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Advance the read pointer past the write pointer */
+ pipe->read = 9;
+
+ /* Get all of the available memory. */
+ rc = spdk_pipe_writer_get_buffer(pipe, 1, iovs);
+ CU_ASSERT(rc == 1);
+ CU_ASSERT(iovs[0].iov_base == (mem + 7));
+ CU_ASSERT(iovs[0].iov_len == 1);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 7);
+ CU_ASSERT(pipe->read == 9);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get more than the available memory */
+ rc = spdk_pipe_writer_get_buffer(pipe, 2, iovs);
+ CU_ASSERT(rc == 1);
+ CU_ASSERT(iovs[0].iov_base == (mem + 7));
+ CU_ASSERT(iovs[0].iov_len == 1);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 7);
+ CU_ASSERT(pipe->read == 9);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Fill the pipe */
+ pipe->write = 8;
+
+ /* Get data while the pipe is full */
+ rc = spdk_pipe_writer_get_buffer(pipe, 1, iovs);
+ CU_ASSERT(rc == 0);
+ CU_ASSERT(iovs[0].iov_base == NULL);
+ CU_ASSERT(iovs[0].iov_len == 0);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 8);
+ CU_ASSERT(pipe->read == 9);
+
+ spdk_pipe_destroy(pipe);
+}
+
+static void
+test_write_advance(void)
+{
+ struct spdk_pipe *pipe;
+ uint8_t mem[10];
+ int rc;
+
+ pipe = spdk_pipe_create(mem, sizeof(mem));
+ SPDK_CU_ASSERT_FATAL(pipe != NULL);
+
+ /* Advance half way through the pipe */
+ rc = spdk_pipe_writer_advance(pipe, 5);
+ CU_ASSERT(rc == 0);
+ CU_ASSERT(pipe->write == 5);
+ CU_ASSERT(pipe->read == 0);
+
+ pipe->write = 0;
+
+ /* Advance to the end of the pipe */
+ rc = spdk_pipe_writer_advance(pipe, 9);
+ CU_ASSERT(rc == 0);
+ CU_ASSERT(pipe->write == 9);
+ CU_ASSERT(pipe->read == 0);
+
+ pipe->write = 0;
+
+ /* Advance beyond the end */
+ rc = spdk_pipe_writer_advance(pipe, 10);
+ CU_ASSERT(rc == -EINVAL);
+ CU_ASSERT(pipe->write == 0);
+ CU_ASSERT(pipe->read == 0);
+
+ /* Move the read pointer forward */
+ pipe->write = 0;
+ pipe->read = 5;
+
+ /* Advance to the end of the pipe */
+ rc = spdk_pipe_writer_advance(pipe, 4);
+ CU_ASSERT(rc == 0);
+ CU_ASSERT(pipe->write == 4);
+ CU_ASSERT(pipe->read == 5);
+
+ pipe->write = 0;
+ pipe->read = 5;
+
+ /* Advance beyond the end */
+ rc = spdk_pipe_writer_advance(pipe, 5);
+ CU_ASSERT(rc == -EINVAL);
+ CU_ASSERT(pipe->write == 0);
+ CU_ASSERT(pipe->read == 5);
+
+ /* Test wrap around */
+ pipe->write = 7;
+ pipe->read = 3;
+
+ /* Advance to the end of the pipe */
+ rc = spdk_pipe_writer_advance(pipe, 5);
+ CU_ASSERT(rc == 0);
+ CU_ASSERT(pipe->write == 2);
+ CU_ASSERT(pipe->read == 3);
+
+ pipe->write = 7;
+ pipe->read = 3;
+
+ /* Advance beyond the end */
+ rc = spdk_pipe_writer_advance(pipe, 6);
+ CU_ASSERT(rc == -EINVAL);
+ CU_ASSERT(pipe->write == 7);
+ CU_ASSERT(pipe->read == 3);
+
+ spdk_pipe_destroy(pipe);
+}
+
+static void
+test_read_get_buffer(void)
+{
+ struct spdk_pipe *pipe;
+ uint8_t mem[10];
+ struct iovec iovs[2];
+ int rc;
+
+ pipe = spdk_pipe_create(mem, sizeof(mem));
+ SPDK_CU_ASSERT_FATAL(pipe != NULL);
+
+ /* Set the write pointer to the end, making all data available. */
+ pipe->write = 9;
+
+ /* Get half the available memory. */
+ rc = spdk_pipe_reader_get_buffer(pipe, 5, iovs);
+ CU_ASSERT(rc == 5);
+ CU_ASSERT(iovs[0].iov_base == mem);
+ CU_ASSERT(iovs[0].iov_len == 5);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 9);
+ CU_ASSERT(pipe->read == 0);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get 0 bytes. */
+ rc = spdk_pipe_reader_get_buffer(pipe, 0, iovs);
+ CU_ASSERT(rc == 0);
+ CU_ASSERT(iovs[0].iov_base == NULL);
+ CU_ASSERT(iovs[0].iov_len == 0);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 9);
+ CU_ASSERT(pipe->read == 0);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get all available memory */
+ rc = spdk_pipe_reader_get_buffer(pipe, 9, iovs);
+ CU_ASSERT(rc == 9);
+ CU_ASSERT(iovs[0].iov_base == mem);
+ CU_ASSERT(iovs[0].iov_len == 9);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 9);
+ CU_ASSERT(pipe->read == 0);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get more bytes than exist */
+ rc = spdk_pipe_reader_get_buffer(pipe, 10, iovs);
+ CU_ASSERT(rc == 9);
+ CU_ASSERT(iovs[0].iov_base == mem);
+ CU_ASSERT(iovs[0].iov_len == 9);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 9);
+ CU_ASSERT(pipe->read == 0);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Advance the read pointer 5 bytes in. */
+ pipe->read = 5;
+ pipe->write = 0;
+
+ /* Get all of the available memory. */
+ rc = spdk_pipe_reader_get_buffer(pipe, 5, iovs);
+ CU_ASSERT(rc == 5);
+ CU_ASSERT(iovs[0].iov_base == (mem + 5));
+ CU_ASSERT(iovs[0].iov_len == 5);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 0);
+ CU_ASSERT(pipe->read == 5);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get more than the available memory */
+ rc = spdk_pipe_reader_get_buffer(pipe, 6, iovs);
+ CU_ASSERT(rc == 5);
+ CU_ASSERT(iovs[0].iov_base == (mem + 5));
+ CU_ASSERT(iovs[0].iov_len == 5);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 0);
+ CU_ASSERT(pipe->read == 5);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Invert the write and read pointers */
+ pipe->read = 7;
+ pipe->write = 3;
+
+ /* Get all of the available memory. */
+ rc = spdk_pipe_reader_get_buffer(pipe, 6, iovs);
+ CU_ASSERT(rc == 6);
+ CU_ASSERT(iovs[0].iov_base == (mem + 7));
+ CU_ASSERT(iovs[0].iov_len == 3);
+ CU_ASSERT(iovs[1].iov_base == mem);
+ CU_ASSERT(iovs[1].iov_len == 3);
+ CU_ASSERT(pipe->write == 3);
+ CU_ASSERT(pipe->read == 7);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get more than the available memory */
+ rc = spdk_pipe_reader_get_buffer(pipe, 7, iovs);
+ CU_ASSERT(rc == 6);
+ CU_ASSERT(iovs[0].iov_base == (mem + 7));
+ CU_ASSERT(iovs[0].iov_len == 3);
+ CU_ASSERT(iovs[1].iov_base == mem);
+ CU_ASSERT(iovs[1].iov_len == 3);
+ CU_ASSERT(pipe->write == 3);
+ CU_ASSERT(pipe->read == 7);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Empty the pipe */
+ pipe->read = 8;
+ pipe->write = 8;
+
+ /* Get data while the pipe is empty */
+ rc = spdk_pipe_reader_get_buffer(pipe, 1, iovs);
+ CU_ASSERT(rc == 0);
+ CU_ASSERT(iovs[0].iov_base == NULL);
+ CU_ASSERT(iovs[0].iov_len == 0);
+ CU_ASSERT(iovs[1].iov_base == NULL);
+ CU_ASSERT(iovs[1].iov_len == 0);
+ CU_ASSERT(pipe->write == 8);
+ CU_ASSERT(pipe->read == 8);
+
+ spdk_pipe_destroy(pipe);
+}
+
+static void
+test_read_advance(void)
+{
+ struct spdk_pipe *pipe;
+ uint8_t mem[10];
+ int rc;
+
+ pipe = spdk_pipe_create(mem, sizeof(mem));
+ SPDK_CU_ASSERT_FATAL(pipe != NULL);
+
+ pipe->read = 0;
+ pipe->write = 9;
+
+ /* Advance half way through the pipe */
+ rc = spdk_pipe_reader_advance(pipe, 5);
+ CU_ASSERT(rc == 0);
+ CU_ASSERT(pipe->read == 5);
+ CU_ASSERT(pipe->write == 9);
+
+ pipe->read = 0;
+ pipe->write = 9;
+
+ /* Advance to the end of the pipe */
+ rc = spdk_pipe_reader_advance(pipe, 9);
+ CU_ASSERT(rc == 0);
+ CU_ASSERT(pipe->read == 9);
+ CU_ASSERT(pipe->write == 9);
+
+ pipe->read = 0;
+ pipe->write = 9;
+
+ /* Advance beyond the end */
+ rc = spdk_pipe_reader_advance(pipe, 10);
+ CU_ASSERT(rc == -EINVAL);
+ CU_ASSERT(pipe->read == 0);
+ CU_ASSERT(pipe->write == 9);
+
+ /* Move the write pointer forward */
+ pipe->read = 0;
+ pipe->write = 5;
+
+ /* Advance to the end of the pipe */
+ rc = spdk_pipe_reader_advance(pipe, 5);
+ CU_ASSERT(rc == 0);
+ CU_ASSERT(pipe->write == 5);
+ CU_ASSERT(pipe->read == 5);
+
+ pipe->read = 0;
+ pipe->write = 5;
+
+ /* Advance beyond the end */
+ rc = spdk_pipe_reader_advance(pipe, 6);
+ CU_ASSERT(rc == -EINVAL);
+ CU_ASSERT(pipe->read == 0);
+ CU_ASSERT(pipe->write == 5);
+
+ /* Test wrap around */
+ pipe->read = 7;
+ pipe->write = 3;
+
+ /* Advance to the end of the pipe */
+ rc = spdk_pipe_reader_advance(pipe, 6);
+ CU_ASSERT(rc == 0);
+ CU_ASSERT(pipe->read == 3);
+ CU_ASSERT(pipe->write == 3);
+
+ pipe->read = 7;
+ pipe->write = 3;
+
+ /* Advance beyond the end */
+ rc = spdk_pipe_writer_advance(pipe, 7);
+ CU_ASSERT(rc == -EINVAL);
+ CU_ASSERT(pipe->read == 7);
+ CU_ASSERT(pipe->write == 3);
+
+ spdk_pipe_destroy(pipe);
+}
+
+static void
+test_data(void)
+{
+ struct spdk_pipe *pipe;
+ uint8_t mem[10];
+ struct iovec iovs[2];
+ uint8_t *data;
+ int rc;
+ size_t i;
+
+ memset(mem, 0, sizeof(mem));
+ memset(iovs, 0, sizeof(iovs));
+
+ pipe = spdk_pipe_create(mem, sizeof(mem));
+ SPDK_CU_ASSERT_FATAL(pipe != NULL);
+
+ /* Place 1 byte in the pipe */
+ rc = spdk_pipe_writer_get_buffer(pipe, 1, iovs);
+ CU_ASSERT(rc == 1);
+ CU_ASSERT(iovs[0].iov_base != NULL);
+ CU_ASSERT(iovs[0].iov_len == 1);
+
+ memset(iovs[0].iov_base, 'A', 1);
+
+ rc = spdk_pipe_writer_advance(pipe, 1);
+ CU_ASSERT(rc == 0);
+
+ CU_ASSERT(mem[0] == 'A');
+ CU_ASSERT(mem[1] == 0);
+ CU_ASSERT(mem[2] == 0);
+ CU_ASSERT(mem[3] == 0);
+ CU_ASSERT(mem[4] == 0);
+ CU_ASSERT(mem[5] == 0);
+ CU_ASSERT(mem[6] == 0);
+ CU_ASSERT(mem[7] == 0);
+ CU_ASSERT(mem[8] == 0);
+ CU_ASSERT(mem[9] == 0);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get 1 byte from the pipe */
+ CU_ASSERT(spdk_pipe_reader_bytes_available(pipe) == 1);
+ rc = spdk_pipe_reader_get_buffer(pipe, 10, iovs);
+ CU_ASSERT(rc == 1);
+
+ data = iovs[0].iov_base;
+ CU_ASSERT(*data = 'A');
+
+ spdk_pipe_reader_advance(pipe, 1);
+
+ /* Put 9 more bytes in the pipe, so every byte has
+ * been written */
+ rc = spdk_pipe_writer_get_buffer(pipe, 9, iovs);
+ CU_ASSERT(rc == 9);
+ CU_ASSERT(iovs[0].iov_len == 9);
+ CU_ASSERT(iovs[1].iov_len == 0);
+
+ memset(iovs[0].iov_base, 'B', iovs[0].iov_len);
+
+ rc = spdk_pipe_writer_advance(pipe, 9);
+ CU_ASSERT(rc == 0);
+
+ CU_ASSERT(mem[0] == 'A');
+ CU_ASSERT(mem[1] == 'B');
+ CU_ASSERT(mem[2] == 'B');
+ CU_ASSERT(mem[3] == 'B');
+ CU_ASSERT(mem[4] == 'B');
+ CU_ASSERT(mem[5] == 'B');
+ CU_ASSERT(mem[6] == 'B');
+ CU_ASSERT(mem[7] == 'B');
+ CU_ASSERT(mem[8] == 'B');
+ CU_ASSERT(mem[9] == 'B');
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get 7 bytes of the previously written 9. */
+ CU_ASSERT(spdk_pipe_reader_bytes_available(pipe) == 9);
+ rc = spdk_pipe_reader_get_buffer(pipe, 7, iovs);
+ CU_ASSERT(rc == 7);
+
+ CU_ASSERT(iovs[0].iov_len == 7);
+ data = iovs[0].iov_base;
+ for (i = 0; i < iovs[0].iov_len; i++) {
+ CU_ASSERT(data[i] == 'B');
+ }
+
+ spdk_pipe_reader_advance(pipe, 7);
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Put 1 more byte in the pipe, overwriting the original 'A' */
+ rc = spdk_pipe_writer_get_buffer(pipe, 1, iovs);
+ CU_ASSERT(rc == 1);
+ CU_ASSERT(iovs[0].iov_len == 1);
+ CU_ASSERT(iovs[1].iov_len == 0);
+
+ memset(iovs[0].iov_base, 'C', iovs[0].iov_len);
+
+ rc = spdk_pipe_writer_advance(pipe, 1);
+ CU_ASSERT(rc == 0);
+
+ CU_ASSERT(mem[0] == 'C');
+ CU_ASSERT(mem[1] == 'B');
+ CU_ASSERT(mem[2] == 'B');
+ CU_ASSERT(mem[3] == 'B');
+ CU_ASSERT(mem[4] == 'B');
+ CU_ASSERT(mem[5] == 'B');
+ CU_ASSERT(mem[6] == 'B');
+ CU_ASSERT(mem[7] == 'B');
+ CU_ASSERT(mem[8] == 'B');
+ CU_ASSERT(mem[9] == 'B');
+
+ memset(iovs, 0, sizeof(iovs));
+
+ /* Get all of the data out of the pipe */
+ CU_ASSERT(spdk_pipe_reader_bytes_available(pipe) == 3);
+ rc = spdk_pipe_reader_get_buffer(pipe, 3, iovs);
+ CU_ASSERT(rc == 3);
+ CU_ASSERT(iovs[0].iov_len == 2);
+ CU_ASSERT(iovs[1].iov_len == 1);
+
+ data = iovs[0].iov_base;
+ CU_ASSERT(data[0] == 'B');
+ CU_ASSERT(data[1] == 'B');
+ data = iovs[1].iov_base;
+ CU_ASSERT(data[0] == 'C');
+
+ spdk_pipe_reader_advance(pipe, 3);
+
+ spdk_pipe_destroy(pipe);
+}
+
+int
+main(int argc, char **argv)
+{
+ CU_pSuite suite = NULL;
+ unsigned int num_failures;
+
+ CU_set_error_action(CUEA_ABORT);
+ CU_initialize_registry();
+
+ suite = CU_add_suite("pipe", NULL, NULL);
+
+ CU_ADD_TEST(suite, test_create_destroy);
+ CU_ADD_TEST(suite, test_write_get_buffer);
+ CU_ADD_TEST(suite, test_write_advance);
+ CU_ADD_TEST(suite, test_read_get_buffer);
+ CU_ADD_TEST(suite, test_read_advance);
+ CU_ADD_TEST(suite, test_data);
+
+ CU_basic_set_mode(CU_BRM_VERBOSE);
+
+ CU_basic_run_tests();
+
+ num_failures = CU_get_number_of_failures();
+ CU_cleanup_registry();
+
+ return num_failures;
+}