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Diffstat (limited to 'src/spdk/test/unit/lib/reduce/reduce.c/reduce_ut.c')
| -rw-r--r-- | src/spdk/test/unit/lib/reduce/reduce.c/reduce_ut.c | 1300 |
1 files changed, 1300 insertions, 0 deletions
diff --git a/src/spdk/test/unit/lib/reduce/reduce.c/reduce_ut.c b/src/spdk/test/unit/lib/reduce/reduce.c/reduce_ut.c new file mode 100644 index 000000000..9c94a4ac6 --- /dev/null +++ b/src/spdk/test/unit/lib/reduce/reduce.c/reduce_ut.c @@ -0,0 +1,1300 @@ +/*- + * 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 "reduce/reduce.c" +#include "spdk_internal/mock.h" +#include "common/lib/test_env.c" + +static struct spdk_reduce_vol *g_vol; +static int g_reduce_errno; +static char *g_volatile_pm_buf; +static size_t g_volatile_pm_buf_len; +static char *g_persistent_pm_buf; +static size_t g_persistent_pm_buf_len; +static char *g_backing_dev_buf; +static char g_path[REDUCE_PATH_MAX]; +static char *g_decomp_buf; + +#define TEST_MD_PATH "/tmp" + +enum ut_reduce_bdev_io_type { + UT_REDUCE_IO_READV = 1, + UT_REDUCE_IO_WRITEV = 2, + UT_REDUCE_IO_UNMAP = 3, +}; + +struct ut_reduce_bdev_io { + enum ut_reduce_bdev_io_type type; + struct spdk_reduce_backing_dev *backing_dev; + struct iovec *iov; + int iovcnt; + uint64_t lba; + uint32_t lba_count; + struct spdk_reduce_vol_cb_args *args; + TAILQ_ENTRY(ut_reduce_bdev_io) link; +}; + +static bool g_defer_bdev_io = false; +static TAILQ_HEAD(, ut_reduce_bdev_io) g_pending_bdev_io = + TAILQ_HEAD_INITIALIZER(g_pending_bdev_io); +static uint32_t g_pending_bdev_io_count = 0; + +static void +sync_pm_buf(const void *addr, size_t length) +{ + uint64_t offset = (char *)addr - g_volatile_pm_buf; + + memcpy(&g_persistent_pm_buf[offset], addr, length); +} + +int +pmem_msync(const void *addr, size_t length) +{ + sync_pm_buf(addr, length); + return 0; +} + +void +pmem_persist(const void *addr, size_t len) +{ + sync_pm_buf(addr, len); +} + +static void +get_pm_file_size(void) +{ + struct spdk_reduce_vol_params params; + uint64_t pm_size, expected_pm_size; + + params.backing_io_unit_size = 4096; + params.chunk_size = 4096 * 4; + params.vol_size = 4096 * 4 * 100; + + pm_size = _get_pm_file_size(¶ms); + expected_pm_size = sizeof(struct spdk_reduce_vol_superblock); + /* 100 chunks in logical map * 8 bytes per chunk */ + expected_pm_size += 100 * sizeof(uint64_t); + /* 100 chunks * (chunk stuct size + 4 backing io units per chunk * 8 bytes per backing io unit) */ + expected_pm_size += 100 * (sizeof(struct spdk_reduce_chunk_map) + 4 * sizeof(uint64_t)); + /* reduce allocates some extra chunks too for in-flight writes when logical map + * is full. REDUCE_EXTRA_CHUNKS is a private #ifdef in reduce.c Here we need the num chunks + * times (chunk struct size + 4 backing io units per chunk * 8 bytes per backing io unit). + */ + expected_pm_size += REDUCE_NUM_EXTRA_CHUNKS * + (sizeof(struct spdk_reduce_chunk_map) + 4 * sizeof(uint64_t)); + /* reduce will add some padding so numbers may not match exactly. Make sure + * they are close though. + */ + CU_ASSERT((pm_size - expected_pm_size) <= REDUCE_PM_SIZE_ALIGNMENT); +} + +static void +get_vol_size(void) +{ + uint64_t chunk_size, backing_dev_size; + + chunk_size = 16 * 1024; + backing_dev_size = 16 * 1024 * 1000; + CU_ASSERT(_get_vol_size(chunk_size, backing_dev_size) < backing_dev_size); +} + +void * +pmem_map_file(const char *path, size_t len, int flags, mode_t mode, + size_t *mapped_lenp, int *is_pmemp) +{ + CU_ASSERT(g_volatile_pm_buf == NULL); + snprintf(g_path, sizeof(g_path), "%s", path); + *is_pmemp = 1; + + if (g_persistent_pm_buf == NULL) { + g_persistent_pm_buf = calloc(1, len); + g_persistent_pm_buf_len = len; + SPDK_CU_ASSERT_FATAL(g_persistent_pm_buf != NULL); + } + + *mapped_lenp = g_persistent_pm_buf_len; + g_volatile_pm_buf = calloc(1, g_persistent_pm_buf_len); + SPDK_CU_ASSERT_FATAL(g_volatile_pm_buf != NULL); + memcpy(g_volatile_pm_buf, g_persistent_pm_buf, g_persistent_pm_buf_len); + g_volatile_pm_buf_len = g_persistent_pm_buf_len; + + return g_volatile_pm_buf; +} + +int +pmem_unmap(void *addr, size_t len) +{ + CU_ASSERT(addr == g_volatile_pm_buf); + CU_ASSERT(len == g_volatile_pm_buf_len); + free(g_volatile_pm_buf); + g_volatile_pm_buf = NULL; + g_volatile_pm_buf_len = 0; + + return 0; +} + +static void +persistent_pm_buf_destroy(void) +{ + CU_ASSERT(g_persistent_pm_buf != NULL); + free(g_persistent_pm_buf); + g_persistent_pm_buf = NULL; + g_persistent_pm_buf_len = 0; +} + +static void +unlink_cb(void) +{ + persistent_pm_buf_destroy(); +} + +static void +init_cb(void *cb_arg, struct spdk_reduce_vol *vol, int reduce_errno) +{ + g_vol = vol; + g_reduce_errno = reduce_errno; +} + +static void +load_cb(void *cb_arg, struct spdk_reduce_vol *vol, int reduce_errno) +{ + g_vol = vol; + g_reduce_errno = reduce_errno; +} + +static void +unload_cb(void *cb_arg, int reduce_errno) +{ + g_reduce_errno = reduce_errno; +} + +static void +init_failure(void) +{ + struct spdk_reduce_vol_params params = {}; + struct spdk_reduce_backing_dev backing_dev = {}; + + backing_dev.blocklen = 512; + /* This blockcnt is too small for a reduce vol - there needs to be + * enough space for at least REDUCE_NUM_EXTRA_CHUNKS + 1 chunks. + */ + backing_dev.blockcnt = 20; + + params.vol_size = 0; + params.chunk_size = 16 * 1024; + params.backing_io_unit_size = backing_dev.blocklen; + params.logical_block_size = 512; + + /* backing_dev has an invalid size. This should fail. */ + g_vol = NULL; + g_reduce_errno = 0; + spdk_reduce_vol_init(¶ms, &backing_dev, TEST_MD_PATH, init_cb, NULL); + CU_ASSERT(g_reduce_errno == -EINVAL); + SPDK_CU_ASSERT_FATAL(g_vol == NULL); + + /* backing_dev now has valid size, but backing_dev still has null + * function pointers. This should fail. + */ + backing_dev.blockcnt = 20000; + + g_vol = NULL; + g_reduce_errno = 0; + spdk_reduce_vol_init(¶ms, &backing_dev, TEST_MD_PATH, init_cb, NULL); + CU_ASSERT(g_reduce_errno == -EINVAL); + SPDK_CU_ASSERT_FATAL(g_vol == NULL); +} + +static void +backing_dev_readv_execute(struct spdk_reduce_backing_dev *backing_dev, + struct iovec *iov, int iovcnt, + uint64_t lba, uint32_t lba_count, + struct spdk_reduce_vol_cb_args *args) +{ + char *offset; + int i; + + offset = g_backing_dev_buf + lba * backing_dev->blocklen; + for (i = 0; i < iovcnt; i++) { + memcpy(iov[i].iov_base, offset, iov[i].iov_len); + offset += iov[i].iov_len; + } + args->cb_fn(args->cb_arg, 0); +} + +static void +backing_dev_insert_io(enum ut_reduce_bdev_io_type type, struct spdk_reduce_backing_dev *backing_dev, + struct iovec *iov, int iovcnt, uint64_t lba, uint32_t lba_count, + struct spdk_reduce_vol_cb_args *args) +{ + struct ut_reduce_bdev_io *ut_bdev_io; + + ut_bdev_io = calloc(1, sizeof(*ut_bdev_io)); + SPDK_CU_ASSERT_FATAL(ut_bdev_io != NULL); + + ut_bdev_io->type = type; + ut_bdev_io->backing_dev = backing_dev; + ut_bdev_io->iov = iov; + ut_bdev_io->iovcnt = iovcnt; + ut_bdev_io->lba = lba; + ut_bdev_io->lba_count = lba_count; + ut_bdev_io->args = args; + TAILQ_INSERT_TAIL(&g_pending_bdev_io, ut_bdev_io, link); + g_pending_bdev_io_count++; +} + +static void +backing_dev_readv(struct spdk_reduce_backing_dev *backing_dev, struct iovec *iov, int iovcnt, + uint64_t lba, uint32_t lba_count, struct spdk_reduce_vol_cb_args *args) +{ + if (g_defer_bdev_io == false) { + CU_ASSERT(g_pending_bdev_io_count == 0); + CU_ASSERT(TAILQ_EMPTY(&g_pending_bdev_io)); + backing_dev_readv_execute(backing_dev, iov, iovcnt, lba, lba_count, args); + return; + } + + backing_dev_insert_io(UT_REDUCE_IO_READV, backing_dev, iov, iovcnt, lba, lba_count, args); +} + +static void +backing_dev_writev_execute(struct spdk_reduce_backing_dev *backing_dev, + struct iovec *iov, int iovcnt, + uint64_t lba, uint32_t lba_count, + struct spdk_reduce_vol_cb_args *args) +{ + char *offset; + int i; + + offset = g_backing_dev_buf + lba * backing_dev->blocklen; + for (i = 0; i < iovcnt; i++) { + memcpy(offset, iov[i].iov_base, iov[i].iov_len); + offset += iov[i].iov_len; + } + args->cb_fn(args->cb_arg, 0); +} + +static void +backing_dev_writev(struct spdk_reduce_backing_dev *backing_dev, struct iovec *iov, int iovcnt, + uint64_t lba, uint32_t lba_count, struct spdk_reduce_vol_cb_args *args) +{ + if (g_defer_bdev_io == false) { + CU_ASSERT(g_pending_bdev_io_count == 0); + CU_ASSERT(TAILQ_EMPTY(&g_pending_bdev_io)); + backing_dev_writev_execute(backing_dev, iov, iovcnt, lba, lba_count, args); + return; + } + + backing_dev_insert_io(UT_REDUCE_IO_WRITEV, backing_dev, iov, iovcnt, lba, lba_count, args); +} + +static void +backing_dev_unmap_execute(struct spdk_reduce_backing_dev *backing_dev, + uint64_t lba, uint32_t lba_count, + struct spdk_reduce_vol_cb_args *args) +{ + char *offset; + + offset = g_backing_dev_buf + lba * backing_dev->blocklen; + memset(offset, 0, lba_count * backing_dev->blocklen); + args->cb_fn(args->cb_arg, 0); +} + +static void +backing_dev_unmap(struct spdk_reduce_backing_dev *backing_dev, + uint64_t lba, uint32_t lba_count, struct spdk_reduce_vol_cb_args *args) +{ + if (g_defer_bdev_io == false) { + CU_ASSERT(g_pending_bdev_io_count == 0); + CU_ASSERT(TAILQ_EMPTY(&g_pending_bdev_io)); + backing_dev_unmap_execute(backing_dev, lba, lba_count, args); + return; + } + + backing_dev_insert_io(UT_REDUCE_IO_UNMAP, backing_dev, NULL, 0, lba, lba_count, args); +} + +static void +backing_dev_io_execute(uint32_t count) +{ + struct ut_reduce_bdev_io *ut_bdev_io; + uint32_t done = 0; + + CU_ASSERT(g_defer_bdev_io == true); + while (!TAILQ_EMPTY(&g_pending_bdev_io) && (count == 0 || done < count)) { + ut_bdev_io = TAILQ_FIRST(&g_pending_bdev_io); + TAILQ_REMOVE(&g_pending_bdev_io, ut_bdev_io, link); + g_pending_bdev_io_count--; + switch (ut_bdev_io->type) { + case UT_REDUCE_IO_READV: + backing_dev_readv_execute(ut_bdev_io->backing_dev, + ut_bdev_io->iov, ut_bdev_io->iovcnt, + ut_bdev_io->lba, ut_bdev_io->lba_count, + ut_bdev_io->args); + break; + case UT_REDUCE_IO_WRITEV: + backing_dev_writev_execute(ut_bdev_io->backing_dev, + ut_bdev_io->iov, ut_bdev_io->iovcnt, + ut_bdev_io->lba, ut_bdev_io->lba_count, + ut_bdev_io->args); + break; + case UT_REDUCE_IO_UNMAP: + backing_dev_unmap_execute(ut_bdev_io->backing_dev, + ut_bdev_io->lba, ut_bdev_io->lba_count, + ut_bdev_io->args); + break; + default: + CU_ASSERT(false); + break; + } + free(ut_bdev_io); + done++; + } +} + +static int +ut_compress(char *outbuf, uint32_t *compressed_len, char *inbuf, uint32_t inbuflen) +{ + uint32_t len = 0; + uint8_t count; + char last; + + while (true) { + if (inbuflen == 0) { + *compressed_len = len; + return 0; + } + + if (*compressed_len < (len + 2)) { + return -ENOSPC; + } + + last = *inbuf; + count = 1; + inbuflen--; + inbuf++; + + while (inbuflen > 0 && *inbuf == last && count < UINT8_MAX) { + count++; + inbuflen--; + inbuf++; + } + + outbuf[len] = count; + outbuf[len + 1] = last; + len += 2; + } +} + +static int +ut_decompress(uint8_t *outbuf, uint32_t *compressed_len, uint8_t *inbuf, uint32_t inbuflen) +{ + uint32_t len = 0; + + SPDK_CU_ASSERT_FATAL(inbuflen % 2 == 0); + + while (true) { + if (inbuflen == 0) { + *compressed_len = len; + return 0; + } + + if ((len + inbuf[0]) > *compressed_len) { + return -ENOSPC; + } + + memset(outbuf, inbuf[1], inbuf[0]); + outbuf += inbuf[0]; + len += inbuf[0]; + inbuflen -= 2; + inbuf += 2; + } +} + +static void +ut_build_data_buffer(uint8_t *data, uint32_t data_len, uint8_t init_val, uint32_t repeat) +{ + uint32_t _repeat = repeat; + + SPDK_CU_ASSERT_FATAL(repeat > 0); + + while (data_len > 0) { + *data = init_val; + data++; + data_len--; + _repeat--; + if (_repeat == 0) { + init_val++; + _repeat = repeat; + } + } +} + +static void +backing_dev_compress(struct spdk_reduce_backing_dev *backing_dev, + struct iovec *src_iov, int src_iovcnt, + struct iovec *dst_iov, int dst_iovcnt, + struct spdk_reduce_vol_cb_args *args) +{ + uint32_t compressed_len; + uint64_t total_length = 0; + char *buf = g_decomp_buf; + int rc, i; + + CU_ASSERT(dst_iovcnt == 1); + + for (i = 0; i < src_iovcnt; i++) { + memcpy(buf, src_iov[i].iov_base, src_iov[i].iov_len); + buf += src_iov[i].iov_len; + total_length += src_iov[i].iov_len; + } + + compressed_len = dst_iov[0].iov_len; + rc = ut_compress(dst_iov[0].iov_base, &compressed_len, + g_decomp_buf, total_length); + + args->cb_fn(args->cb_arg, rc ? rc : (int)compressed_len); +} + +static void +backing_dev_decompress(struct spdk_reduce_backing_dev *backing_dev, + struct iovec *src_iov, int src_iovcnt, + struct iovec *dst_iov, int dst_iovcnt, + struct spdk_reduce_vol_cb_args *args) +{ + uint32_t decompressed_len = 0; + char *buf = g_decomp_buf; + int rc, i; + + CU_ASSERT(src_iovcnt == 1); + + for (i = 0; i < dst_iovcnt; i++) { + decompressed_len += dst_iov[i].iov_len; + } + + rc = ut_decompress(g_decomp_buf, &decompressed_len, + src_iov[0].iov_base, src_iov[0].iov_len); + + for (i = 0; i < dst_iovcnt; i++) { + memcpy(dst_iov[i].iov_base, buf, dst_iov[i].iov_len); + buf += dst_iov[i].iov_len; + } + + args->cb_fn(args->cb_arg, rc ? rc : (int)decompressed_len); +} + +static void +backing_dev_destroy(struct spdk_reduce_backing_dev *backing_dev) +{ + /* We don't free this during backing_dev_close so that we can test init/unload/load + * scenarios. + */ + free(g_backing_dev_buf); + free(g_decomp_buf); + g_backing_dev_buf = NULL; +} + +static void +backing_dev_init(struct spdk_reduce_backing_dev *backing_dev, struct spdk_reduce_vol_params *params, + uint32_t backing_blocklen) +{ + int64_t size; + + size = 4 * 1024 * 1024; + backing_dev->blocklen = backing_blocklen; + backing_dev->blockcnt = size / backing_dev->blocklen; + backing_dev->readv = backing_dev_readv; + backing_dev->writev = backing_dev_writev; + backing_dev->unmap = backing_dev_unmap; + backing_dev->compress = backing_dev_compress; + backing_dev->decompress = backing_dev_decompress; + + g_decomp_buf = calloc(1, params->chunk_size); + SPDK_CU_ASSERT_FATAL(g_decomp_buf != NULL); + + g_backing_dev_buf = calloc(1, size); + SPDK_CU_ASSERT_FATAL(g_backing_dev_buf != NULL); +} + +static void +init_md(void) +{ + struct spdk_reduce_vol_params params = {}; + struct spdk_reduce_vol_params *persistent_params; + struct spdk_reduce_backing_dev backing_dev = {}; + struct spdk_uuid uuid; + uint64_t *entry; + + params.chunk_size = 16 * 1024; + params.backing_io_unit_size = 512; + params.logical_block_size = 512; + + backing_dev_init(&backing_dev, ¶ms, 512); + + g_vol = NULL; + g_reduce_errno = -1; + spdk_reduce_vol_init(¶ms, &backing_dev, TEST_MD_PATH, init_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + /* Confirm that reduce persisted the params to metadata. */ + CU_ASSERT(memcmp(g_persistent_pm_buf, SPDK_REDUCE_SIGNATURE, 8) == 0); + persistent_params = (struct spdk_reduce_vol_params *)(g_persistent_pm_buf + 8); + CU_ASSERT(memcmp(persistent_params, ¶ms, sizeof(params)) == 0); + /* Now confirm that contents of pm_file after the superblock have been initialized + * to REDUCE_EMPTY_MAP_ENTRY. + */ + entry = (uint64_t *)(g_persistent_pm_buf + sizeof(struct spdk_reduce_vol_superblock)); + while (entry != (uint64_t *)(g_persistent_pm_buf + g_vol->pm_file.size)) { + CU_ASSERT(*entry == REDUCE_EMPTY_MAP_ENTRY); + entry++; + } + + /* Check that the pm file path was constructed correctly. It should be in + * the form: + * TEST_MD_PATH + "/" + <uuid string> + */ + CU_ASSERT(strncmp(&g_path[0], TEST_MD_PATH, strlen(TEST_MD_PATH)) == 0); + CU_ASSERT(g_path[strlen(TEST_MD_PATH)] == '/'); + CU_ASSERT(spdk_uuid_parse(&uuid, &g_path[strlen(TEST_MD_PATH) + 1]) == 0); + CU_ASSERT(spdk_uuid_compare(&uuid, spdk_reduce_vol_get_uuid(g_vol)) == 0); + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + CU_ASSERT(g_volatile_pm_buf == NULL); + + persistent_pm_buf_destroy(); + backing_dev_destroy(&backing_dev); +} + +static void +_init_backing_dev(uint32_t backing_blocklen) +{ + struct spdk_reduce_vol_params params = {}; + struct spdk_reduce_vol_params *persistent_params; + struct spdk_reduce_backing_dev backing_dev = {}; + + params.chunk_size = 16 * 1024; + params.backing_io_unit_size = 512; + params.logical_block_size = 512; + spdk_uuid_generate(¶ms.uuid); + + backing_dev_init(&backing_dev, ¶ms, backing_blocklen); + + g_vol = NULL; + memset(g_path, 0, sizeof(g_path)); + g_reduce_errno = -1; + spdk_reduce_vol_init(¶ms, &backing_dev, TEST_MD_PATH, init_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + CU_ASSERT(strncmp(TEST_MD_PATH, g_path, strlen(TEST_MD_PATH)) == 0); + /* Confirm that libreduce persisted the params to the backing device. */ + CU_ASSERT(memcmp(g_backing_dev_buf, SPDK_REDUCE_SIGNATURE, 8) == 0); + persistent_params = (struct spdk_reduce_vol_params *)(g_backing_dev_buf + 8); + CU_ASSERT(memcmp(persistent_params, ¶ms, sizeof(params)) == 0); + /* Confirm that the path to the persistent memory metadata file was persisted to + * the backing device. + */ + CU_ASSERT(strncmp(g_path, + g_backing_dev_buf + REDUCE_BACKING_DEV_PATH_OFFSET, + REDUCE_PATH_MAX) == 0); + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + persistent_pm_buf_destroy(); + backing_dev_destroy(&backing_dev); +} + +static void +init_backing_dev(void) +{ + _init_backing_dev(512); + _init_backing_dev(4096); +} + +static void +_load(uint32_t backing_blocklen) +{ + struct spdk_reduce_vol_params params = {}; + struct spdk_reduce_backing_dev backing_dev = {}; + char pmem_file_path[REDUCE_PATH_MAX]; + + params.chunk_size = 16 * 1024; + params.backing_io_unit_size = 512; + params.logical_block_size = 512; + spdk_uuid_generate(¶ms.uuid); + + backing_dev_init(&backing_dev, ¶ms, backing_blocklen); + + g_vol = NULL; + g_reduce_errno = -1; + spdk_reduce_vol_init(¶ms, &backing_dev, TEST_MD_PATH, init_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + CU_ASSERT(strncmp(TEST_MD_PATH, g_path, strlen(TEST_MD_PATH)) == 0); + memcpy(pmem_file_path, g_path, sizeof(pmem_file_path)); + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + g_vol = NULL; + memset(g_path, 0, sizeof(g_path)); + g_reduce_errno = -1; + spdk_reduce_vol_load(&backing_dev, load_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + CU_ASSERT(strncmp(g_path, pmem_file_path, sizeof(pmem_file_path)) == 0); + CU_ASSERT(g_vol->params.vol_size == params.vol_size); + CU_ASSERT(g_vol->params.chunk_size == params.chunk_size); + CU_ASSERT(g_vol->params.backing_io_unit_size == params.backing_io_unit_size); + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + persistent_pm_buf_destroy(); + backing_dev_destroy(&backing_dev); +} + +static void +load(void) +{ + _load(512); + _load(4096); +} + +static uint64_t +_vol_get_chunk_map_index(struct spdk_reduce_vol *vol, uint64_t offset) +{ + uint64_t logical_map_index = offset / vol->logical_blocks_per_chunk; + + return vol->pm_logical_map[logical_map_index]; +} + +static void +write_cb(void *arg, int reduce_errno) +{ + g_reduce_errno = reduce_errno; +} + +static void +read_cb(void *arg, int reduce_errno) +{ + g_reduce_errno = reduce_errno; +} + +static void +_write_maps(uint32_t backing_blocklen) +{ + struct spdk_reduce_vol_params params = {}; + struct spdk_reduce_backing_dev backing_dev = {}; + struct iovec iov; + const int bufsize = 16 * 1024; /* chunk size */ + char buf[bufsize]; + uint32_t num_lbas, i; + uint64_t old_chunk0_map_index, new_chunk0_map_index; + struct spdk_reduce_chunk_map *old_chunk0_map, *new_chunk0_map; + + params.chunk_size = bufsize; + params.backing_io_unit_size = 4096; + params.logical_block_size = 512; + num_lbas = bufsize / params.logical_block_size; + spdk_uuid_generate(¶ms.uuid); + + backing_dev_init(&backing_dev, ¶ms, backing_blocklen); + + g_vol = NULL; + g_reduce_errno = -1; + spdk_reduce_vol_init(¶ms, &backing_dev, TEST_MD_PATH, init_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + + for (i = 0; i < g_vol->params.vol_size / g_vol->params.chunk_size; i++) { + CU_ASSERT(_vol_get_chunk_map_index(g_vol, i) == REDUCE_EMPTY_MAP_ENTRY); + } + + ut_build_data_buffer(buf, bufsize, 0x00, 1); + iov.iov_base = buf; + iov.iov_len = bufsize; + g_reduce_errno = -1; + spdk_reduce_vol_writev(g_vol, &iov, 1, 0, num_lbas, write_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + old_chunk0_map_index = _vol_get_chunk_map_index(g_vol, 0); + CU_ASSERT(old_chunk0_map_index != REDUCE_EMPTY_MAP_ENTRY); + CU_ASSERT(spdk_bit_array_get(g_vol->allocated_chunk_maps, old_chunk0_map_index) == true); + + old_chunk0_map = _reduce_vol_get_chunk_map(g_vol, old_chunk0_map_index); + for (i = 0; i < g_vol->backing_io_units_per_chunk; i++) { + CU_ASSERT(old_chunk0_map->io_unit_index[i] != REDUCE_EMPTY_MAP_ENTRY); + CU_ASSERT(spdk_bit_array_get(g_vol->allocated_backing_io_units, + old_chunk0_map->io_unit_index[i]) == true); + } + + g_reduce_errno = -1; + spdk_reduce_vol_writev(g_vol, &iov, 1, 0, num_lbas, write_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + new_chunk0_map_index = _vol_get_chunk_map_index(g_vol, 0); + CU_ASSERT(new_chunk0_map_index != REDUCE_EMPTY_MAP_ENTRY); + CU_ASSERT(new_chunk0_map_index != old_chunk0_map_index); + CU_ASSERT(spdk_bit_array_get(g_vol->allocated_chunk_maps, new_chunk0_map_index) == true); + CU_ASSERT(spdk_bit_array_get(g_vol->allocated_chunk_maps, old_chunk0_map_index) == false); + + for (i = 0; i < g_vol->backing_io_units_per_chunk; i++) { + CU_ASSERT(spdk_bit_array_get(g_vol->allocated_backing_io_units, + old_chunk0_map->io_unit_index[i]) == false); + } + + new_chunk0_map = _reduce_vol_get_chunk_map(g_vol, new_chunk0_map_index); + for (i = 0; i < g_vol->backing_io_units_per_chunk; i++) { + CU_ASSERT(new_chunk0_map->io_unit_index[i] != REDUCE_EMPTY_MAP_ENTRY); + CU_ASSERT(spdk_bit_array_get(g_vol->allocated_backing_io_units, + new_chunk0_map->io_unit_index[i]) == true); + } + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + g_vol = NULL; + g_reduce_errno = -1; + spdk_reduce_vol_load(&backing_dev, load_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + CU_ASSERT(g_vol->params.vol_size == params.vol_size); + CU_ASSERT(g_vol->params.chunk_size == params.chunk_size); + CU_ASSERT(g_vol->params.backing_io_unit_size == params.backing_io_unit_size); + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + persistent_pm_buf_destroy(); + backing_dev_destroy(&backing_dev); +} + +static void +write_maps(void) +{ + _write_maps(512); + _write_maps(4096); +} + +static void +_read_write(uint32_t backing_blocklen) +{ + struct spdk_reduce_vol_params params = {}; + struct spdk_reduce_backing_dev backing_dev = {}; + struct iovec iov; + char buf[16 * 1024]; /* chunk size */ + char compare_buf[16 * 1024]; + uint32_t i; + + params.chunk_size = 16 * 1024; + params.backing_io_unit_size = 4096; + params.logical_block_size = 512; + spdk_uuid_generate(¶ms.uuid); + + backing_dev_init(&backing_dev, ¶ms, backing_blocklen); + + g_vol = NULL; + g_reduce_errno = -1; + spdk_reduce_vol_init(¶ms, &backing_dev, TEST_MD_PATH, init_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + + /* Write 0xAA to 2 512-byte logical blocks, starting at LBA 2. */ + memset(buf, 0xAA, 2 * params.logical_block_size); + iov.iov_base = buf; + iov.iov_len = 2 * params.logical_block_size; + g_reduce_errno = -1; + spdk_reduce_vol_writev(g_vol, &iov, 1, 2, 2, write_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + memset(compare_buf, 0xAA, sizeof(compare_buf)); + for (i = 0; i < params.chunk_size / params.logical_block_size; i++) { + memset(buf, 0xFF, params.logical_block_size); + iov.iov_base = buf; + iov.iov_len = params.logical_block_size; + g_reduce_errno = -1; + spdk_reduce_vol_readv(g_vol, &iov, 1, i, 1, read_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + switch (i) { + case 2: + case 3: + CU_ASSERT(memcmp(buf, compare_buf, params.logical_block_size) == 0); + break; + default: + CU_ASSERT(spdk_mem_all_zero(buf, params.logical_block_size)); + break; + } + } + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + /* Overwrite what we just wrote with 0xCC */ + g_vol = NULL; + g_reduce_errno = -1; + spdk_reduce_vol_load(&backing_dev, load_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + CU_ASSERT(g_vol->params.vol_size == params.vol_size); + CU_ASSERT(g_vol->params.chunk_size == params.chunk_size); + CU_ASSERT(g_vol->params.backing_io_unit_size == params.backing_io_unit_size); + + memset(buf, 0xCC, 2 * params.logical_block_size); + iov.iov_base = buf; + iov.iov_len = 2 * params.logical_block_size; + g_reduce_errno = -1; + spdk_reduce_vol_writev(g_vol, &iov, 1, 2, 2, write_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + memset(compare_buf, 0xCC, sizeof(compare_buf)); + for (i = 0; i < params.chunk_size / params.logical_block_size; i++) { + memset(buf, 0xFF, params.logical_block_size); + iov.iov_base = buf; + iov.iov_len = params.logical_block_size; + g_reduce_errno = -1; + spdk_reduce_vol_readv(g_vol, &iov, 1, i, 1, read_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + switch (i) { + case 2: + case 3: + CU_ASSERT(memcmp(buf, compare_buf, params.logical_block_size) == 0); + break; + default: + CU_ASSERT(spdk_mem_all_zero(buf, params.logical_block_size)); + break; + } + } + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + g_vol = NULL; + g_reduce_errno = -1; + spdk_reduce_vol_load(&backing_dev, load_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + CU_ASSERT(g_vol->params.vol_size == params.vol_size); + CU_ASSERT(g_vol->params.chunk_size == params.chunk_size); + CU_ASSERT(g_vol->params.backing_io_unit_size == params.backing_io_unit_size); + + g_reduce_errno = -1; + + /* Write 0xBB to 2 512-byte logical blocks, starting at LBA 37. + * This is writing into the second chunk of the volume. This also + * enables implicitly checking that we reloaded the bit arrays + * correctly - making sure we don't use the first chunk map again + * for this new write - the first chunk map was already used by the + * write from before we unloaded and reloaded. + */ + memset(buf, 0xBB, 2 * params.logical_block_size); + iov.iov_base = buf; + iov.iov_len = 2 * params.logical_block_size; + g_reduce_errno = -1; + spdk_reduce_vol_writev(g_vol, &iov, 1, 37, 2, write_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + for (i = 0; i < 2 * params.chunk_size / params.logical_block_size; i++) { + memset(buf, 0xFF, params.logical_block_size); + iov.iov_base = buf; + iov.iov_len = params.logical_block_size; + g_reduce_errno = -1; + spdk_reduce_vol_readv(g_vol, &iov, 1, i, 1, read_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + switch (i) { + case 2: + case 3: + memset(compare_buf, 0xCC, sizeof(compare_buf)); + CU_ASSERT(memcmp(buf, compare_buf, params.logical_block_size) == 0); + break; + case 37: + case 38: + memset(compare_buf, 0xBB, sizeof(compare_buf)); + CU_ASSERT(memcmp(buf, compare_buf, params.logical_block_size) == 0); + break; + default: + CU_ASSERT(spdk_mem_all_zero(buf, params.logical_block_size)); + break; + } + } + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + persistent_pm_buf_destroy(); + backing_dev_destroy(&backing_dev); +} + +static void +read_write(void) +{ + _read_write(512); + _read_write(4096); +} + +static void +_readv_writev(uint32_t backing_blocklen) +{ + struct spdk_reduce_vol_params params = {}; + struct spdk_reduce_backing_dev backing_dev = {}; + struct iovec iov[REDUCE_MAX_IOVECS + 1]; + + params.chunk_size = 16 * 1024; + params.backing_io_unit_size = 4096; + params.logical_block_size = 512; + spdk_uuid_generate(¶ms.uuid); + + backing_dev_init(&backing_dev, ¶ms, backing_blocklen); + + g_vol = NULL; + g_reduce_errno = -1; + spdk_reduce_vol_init(¶ms, &backing_dev, TEST_MD_PATH, init_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + + g_reduce_errno = -1; + spdk_reduce_vol_writev(g_vol, iov, REDUCE_MAX_IOVECS + 1, 2, REDUCE_MAX_IOVECS + 1, write_cb, NULL); + CU_ASSERT(g_reduce_errno == -EINVAL); + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + persistent_pm_buf_destroy(); + backing_dev_destroy(&backing_dev); +} + +static void +readv_writev(void) +{ + _readv_writev(512); + _readv_writev(4096); +} + +static void +destroy_cb(void *ctx, int reduce_errno) +{ + g_reduce_errno = reduce_errno; +} + +static void +destroy(void) +{ + struct spdk_reduce_vol_params params = {}; + struct spdk_reduce_backing_dev backing_dev = {}; + + params.chunk_size = 16 * 1024; + params.backing_io_unit_size = 512; + params.logical_block_size = 512; + spdk_uuid_generate(¶ms.uuid); + + backing_dev_init(&backing_dev, ¶ms, 512); + + g_vol = NULL; + g_reduce_errno = -1; + spdk_reduce_vol_init(¶ms, &backing_dev, TEST_MD_PATH, init_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + g_vol = NULL; + g_reduce_errno = -1; + spdk_reduce_vol_load(&backing_dev, load_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + g_reduce_errno = -1; + MOCK_CLEAR(spdk_malloc); + MOCK_CLEAR(spdk_zmalloc); + spdk_reduce_vol_destroy(&backing_dev, destroy_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + g_reduce_errno = 0; + spdk_reduce_vol_load(&backing_dev, load_cb, NULL); + CU_ASSERT(g_reduce_errno == -EILSEQ); + + backing_dev_destroy(&backing_dev); +} + +/* This test primarily checks that the reduce unit test infrastructure for asynchronous + * backing device I/O operations is working correctly. + */ +static void +defer_bdev_io(void) +{ + struct spdk_reduce_vol_params params = {}; + struct spdk_reduce_backing_dev backing_dev = {}; + const uint32_t logical_block_size = 512; + struct iovec iov; + char buf[logical_block_size]; + char compare_buf[logical_block_size]; + + params.chunk_size = 16 * 1024; + params.backing_io_unit_size = 4096; + params.logical_block_size = logical_block_size; + spdk_uuid_generate(¶ms.uuid); + + backing_dev_init(&backing_dev, ¶ms, 512); + + g_vol = NULL; + g_reduce_errno = -1; + spdk_reduce_vol_init(¶ms, &backing_dev, TEST_MD_PATH, init_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + + /* Write 0xAA to 1 512-byte logical block. */ + memset(buf, 0xAA, params.logical_block_size); + iov.iov_base = buf; + iov.iov_len = params.logical_block_size; + g_reduce_errno = -100; + g_defer_bdev_io = true; + spdk_reduce_vol_writev(g_vol, &iov, 1, 0, 1, write_cb, NULL); + /* Callback should not have executed, so this should still equal -100. */ + CU_ASSERT(g_reduce_errno == -100); + CU_ASSERT(!TAILQ_EMPTY(&g_pending_bdev_io)); + /* We wrote to just 512 bytes of one chunk which was previously unallocated. This + * should result in 1 pending I/O since the rest of this chunk will be zeroes and + * very compressible. + */ + CU_ASSERT(g_pending_bdev_io_count == 1); + + backing_dev_io_execute(0); + CU_ASSERT(TAILQ_EMPTY(&g_pending_bdev_io)); + CU_ASSERT(g_reduce_errno == 0); + + g_defer_bdev_io = false; + memset(compare_buf, 0xAA, sizeof(compare_buf)); + memset(buf, 0xFF, sizeof(buf)); + iov.iov_base = buf; + iov.iov_len = params.logical_block_size; + g_reduce_errno = -100; + spdk_reduce_vol_readv(g_vol, &iov, 1, 0, 1, read_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + CU_ASSERT(memcmp(buf, compare_buf, sizeof(buf)) == 0); + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + persistent_pm_buf_destroy(); + backing_dev_destroy(&backing_dev); +} + +static void +overlapped(void) +{ + struct spdk_reduce_vol_params params = {}; + struct spdk_reduce_backing_dev backing_dev = {}; + const uint32_t logical_block_size = 512; + struct iovec iov; + char buf[2 * logical_block_size]; + char compare_buf[2 * logical_block_size]; + + params.chunk_size = 16 * 1024; + params.backing_io_unit_size = 4096; + params.logical_block_size = logical_block_size; + spdk_uuid_generate(¶ms.uuid); + + backing_dev_init(&backing_dev, ¶ms, 512); + + g_vol = NULL; + g_reduce_errno = -1; + spdk_reduce_vol_init(¶ms, &backing_dev, TEST_MD_PATH, init_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + SPDK_CU_ASSERT_FATAL(g_vol != NULL); + + /* Write 0xAA to 1 512-byte logical block. */ + memset(buf, 0xAA, logical_block_size); + iov.iov_base = buf; + iov.iov_len = logical_block_size; + g_reduce_errno = -100; + g_defer_bdev_io = true; + spdk_reduce_vol_writev(g_vol, &iov, 1, 0, 1, write_cb, NULL); + /* Callback should not have executed, so this should still equal -100. */ + CU_ASSERT(g_reduce_errno == -100); + CU_ASSERT(!TAILQ_EMPTY(&g_pending_bdev_io)); + /* We wrote to just 512 bytes of one chunk which was previously unallocated. This + * should result in 1 pending I/O since the rest of this chunk will be zeroes and + * very compressible. + */ + CU_ASSERT(g_pending_bdev_io_count == 1); + + /* Now do an overlapped I/O to the same chunk. */ + spdk_reduce_vol_writev(g_vol, &iov, 1, 1, 1, write_cb, NULL); + /* Callback should not have executed, so this should still equal -100. */ + CU_ASSERT(g_reduce_errno == -100); + CU_ASSERT(!TAILQ_EMPTY(&g_pending_bdev_io)); + /* The second I/O overlaps with the first one. So we should only see pending bdev_io + * related to the first I/O here - the second one won't start until the first one is completed. + */ + CU_ASSERT(g_pending_bdev_io_count == 1); + + backing_dev_io_execute(0); + CU_ASSERT(g_reduce_errno == 0); + + g_defer_bdev_io = false; + memset(compare_buf, 0xAA, sizeof(compare_buf)); + memset(buf, 0xFF, sizeof(buf)); + iov.iov_base = buf; + iov.iov_len = 2 * logical_block_size; + g_reduce_errno = -100; + spdk_reduce_vol_readv(g_vol, &iov, 1, 0, 2, read_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + CU_ASSERT(memcmp(buf, compare_buf, 2 * logical_block_size) == 0); + + g_reduce_errno = -1; + spdk_reduce_vol_unload(g_vol, unload_cb, NULL); + CU_ASSERT(g_reduce_errno == 0); + + persistent_pm_buf_destroy(); + backing_dev_destroy(&backing_dev); +} + +#define BUFSIZE 4096 + +static void +compress_algorithm(void) +{ + uint8_t original_data[BUFSIZE]; + uint8_t compressed_data[BUFSIZE]; + uint8_t decompressed_data[BUFSIZE]; + uint32_t compressed_len, decompressed_len; + int rc; + + ut_build_data_buffer(original_data, BUFSIZE, 0xAA, BUFSIZE); + compressed_len = sizeof(compressed_data); + rc = ut_compress(compressed_data, &compressed_len, original_data, UINT8_MAX); + CU_ASSERT(rc == 0); + CU_ASSERT(compressed_len == 2); + CU_ASSERT(compressed_data[0] == UINT8_MAX); + CU_ASSERT(compressed_data[1] == 0xAA); + + decompressed_len = sizeof(decompressed_data); + rc = ut_decompress(decompressed_data, &decompressed_len, compressed_data, compressed_len); + CU_ASSERT(rc == 0); + CU_ASSERT(decompressed_len == UINT8_MAX); + CU_ASSERT(memcmp(original_data, decompressed_data, decompressed_len) == 0); + + compressed_len = sizeof(compressed_data); + rc = ut_compress(compressed_data, &compressed_len, original_data, UINT8_MAX + 1); + CU_ASSERT(rc == 0); + CU_ASSERT(compressed_len == 4); + CU_ASSERT(compressed_data[0] == UINT8_MAX); + CU_ASSERT(compressed_data[1] == 0xAA); + CU_ASSERT(compressed_data[2] == 1); + CU_ASSERT(compressed_data[3] == 0xAA); + + decompressed_len = sizeof(decompressed_data); + rc = ut_decompress(decompressed_data, &decompressed_len, compressed_data, compressed_len); + CU_ASSERT(rc == 0); + CU_ASSERT(decompressed_len == UINT8_MAX + 1); + CU_ASSERT(memcmp(original_data, decompressed_data, decompressed_len) == 0); + + ut_build_data_buffer(original_data, BUFSIZE, 0x00, 1); + compressed_len = sizeof(compressed_data); + rc = ut_compress(compressed_data, &compressed_len, original_data, 2048); + CU_ASSERT(rc == 0); + CU_ASSERT(compressed_len == 4096); + CU_ASSERT(compressed_data[0] == 1); + CU_ASSERT(compressed_data[1] == 0); + CU_ASSERT(compressed_data[4094] == 1); + CU_ASSERT(compressed_data[4095] == 0xFF); + + decompressed_len = sizeof(decompressed_data); + rc = ut_decompress(decompressed_data, &decompressed_len, compressed_data, compressed_len); + CU_ASSERT(rc == 0); + CU_ASSERT(decompressed_len == 2048); + CU_ASSERT(memcmp(original_data, decompressed_data, decompressed_len) == 0); + + compressed_len = sizeof(compressed_data); + rc = ut_compress(compressed_data, &compressed_len, original_data, 2049); + CU_ASSERT(rc == -ENOSPC); +} + +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("reduce", NULL, NULL); + + CU_ADD_TEST(suite, get_pm_file_size); + CU_ADD_TEST(suite, get_vol_size); + CU_ADD_TEST(suite, init_failure); + CU_ADD_TEST(suite, init_md); + CU_ADD_TEST(suite, init_backing_dev); + CU_ADD_TEST(suite, load); + CU_ADD_TEST(suite, write_maps); + CU_ADD_TEST(suite, read_write); + CU_ADD_TEST(suite, readv_writev); + CU_ADD_TEST(suite, destroy); + CU_ADD_TEST(suite, defer_bdev_io); + CU_ADD_TEST(suite, overlapped); + CU_ADD_TEST(suite, compress_algorithm); + + g_unlink_path = g_path; + g_unlink_callback = unlink_cb; + + CU_basic_set_mode(CU_BRM_VERBOSE); + CU_basic_run_tests(); + num_failures = CU_get_number_of_failures(); + CU_cleanup_registry(); + return num_failures; +} |