cd8c36f2fe
spdk_ioviter_next will walk through two iovecs and yield pointers to common length segments. For example, given a source iovec (siov) with 4 1KiB elements and a destination iovec (diov) with 1 4KiB element, the following will happen: first spdk_ioviter_next: src = siov[0].iov_base dst = diov[0].iov_base len = 1KiB second spdk_ioviter_next: src = siov[1].iov_base dst = diov[0].iov_base + 1KiB len = 1KiB third spdk_ioviter_next: src = siov[2].iov_base dst = diov[0].iov_base + 2KiB len = 1KiB fourth spdk_ioviter_next: src = siov[3].iov_base dst = diov[0].iov_base + 3KiB len = 1KiB fifth spdk_ioviter_next: len = 0 This is a useful utility for performing operations where both the source and destination are scattered memory. As an example and a test vehicle, spdk_iovcpy has been updated to use this internally. Change-Id: I7e35e76d38e78d07ea1caf6282d0dfc02182aa83 Signed-off-by: Ben Walker <benjamin.walker@intel.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10284 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Community-CI: Mellanox Build Bot Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com> Reviewed-by: Paul Luse <paul.e.luse@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
157 lines
3.2 KiB
Plaintext
157 lines
3.2 KiB
Plaintext
{
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global:
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# public functions in base64.h
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spdk_base64_encode;
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spdk_base64_urlsafe_encode;
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spdk_base64_decode;
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spdk_base64_urlsafe_decode;
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# public functions in bit_array.h
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spdk_bit_array_capacity;
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spdk_bit_array_create;
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spdk_bit_array_free;
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spdk_bit_array_resize;
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spdk_bit_array_get;
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spdk_bit_array_set;
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spdk_bit_array_clear;
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spdk_bit_array_find_first_set;
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spdk_bit_array_find_first_clear;
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spdk_bit_array_count_set;
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spdk_bit_array_count_clear;
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spdk_bit_array_store_mask;
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spdk_bit_array_load_mask;
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spdk_bit_array_clear_mask;
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# public functions in bit_pool.h
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spdk_bit_pool_capacity;
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spdk_bit_pool_create;
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spdk_bit_pool_create_from_array;
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spdk_bit_pool_free;
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spdk_bit_pool_resize;
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spdk_bit_pool_is_allocated;
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spdk_bit_pool_allocate_bit;
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spdk_bit_pool_free_bit;
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spdk_bit_pool_count_allocated;
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spdk_bit_pool_count_free;
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spdk_bit_pool_store_mask;
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spdk_bit_pool_load_mask;
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spdk_bit_pool_free_all_bits;
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# public functions in cpuset.h
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spdk_cpuset_alloc;
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spdk_cpuset_free;
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spdk_cpuset_equal;
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spdk_cpuset_copy;
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spdk_cpuset_and;
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spdk_cpuset_or;
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spdk_cpuset_xor;
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spdk_cpuset_negate;
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spdk_cpuset_zero;
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spdk_cpuset_set_cpu;
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spdk_cpuset_get_cpu;
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spdk_cpuset_count;
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spdk_cpuset_fmt;
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spdk_cpuset_parse;
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# public functions in crc16.h
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spdk_crc16_t10dif;
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spdk_crc16_t10dif_copy;
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# public functions in crc32.h
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spdk_crc32_ieee_update;
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spdk_crc32c_update;
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spdk_crc32c_iov_update;
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# public functions in dif.h
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spdk_dif_ctx_init;
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spdk_dif_ctx_set_data_offset;
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spdk_dif_ctx_set_remapped_init_ref_tag;
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spdk_dif_generate;
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spdk_dif_verify;
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spdk_dif_update_crc32c;
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spdk_dif_generate_copy;
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spdk_dif_verify_copy;
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spdk_dif_inject_error;
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spdk_dix_generate;
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spdk_dix_verify;
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spdk_dix_inject_error;
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spdk_dif_set_md_interleave_iovs;
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spdk_dif_generate_stream;
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spdk_dif_verify_stream;
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spdk_dif_update_crc32c_stream;
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spdk_dif_get_range_with_md;
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spdk_dif_get_length_with_md;
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spdk_dif_remap_ref_tag;
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spdk_dix_remap_ref_tag;
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# public functions in fd.h
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spdk_fd_get_size;
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spdk_fd_get_blocklen;
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# public functions in file.h
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spdk_posix_file_load;
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# public functions in pipe.h
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spdk_pipe_create;
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spdk_pipe_destroy;
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spdk_pipe_writer_get_buffer;
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spdk_pipe_writer_advance;
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spdk_pipe_reader_bytes_available;
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spdk_pipe_reader_get_buffer;
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spdk_pipe_reader_advance;
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# public functions in string.h
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spdk_sprintf_alloc;
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spdk_vsprintf_alloc;
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spdk_sprintf_append_realloc;
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spdk_vsprintf_append_realloc;
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spdk_strlwr;
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spdk_strsepq;
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spdk_str_trim;
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spdk_strerror_r;
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spdk_strerror;
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spdk_str_chomp;
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spdk_strcpy_pad;
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spdk_strlen_pad;
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spdk_parse_ip_addr;
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spdk_parse_capacity;
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spdk_mem_all_zero;
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spdk_strtol;
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spdk_strtoll;
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# public functions in util.h
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spdk_u32log2;
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spdk_u64log2;
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spdk_iovcpy;
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spdk_ioviter_first;
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spdk_ioviter_next;
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# resolvers for functions in util.h
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spdk_u32log2.resolver;
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spdk_u64log2.resolver;
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# public functions in uuid.h
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spdk_uuid_parse;
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spdk_uuid_fmt_lower;
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spdk_uuid_compare;
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spdk_uuid_generate;
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spdk_uuid_copy;
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# public functions in fd_group.h
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spdk_fd_group_create;
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spdk_fd_group_destroy;
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spdk_fd_group_wait;
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spdk_fd_group_add;
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spdk_fd_group_remove;
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spdk_fd_group_event_modify;
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spdk_fd_group_get_fd;
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# public functions in zipf.h
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spdk_zipf_create;
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spdk_zipf_free;
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spdk_zipf_generate;
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local: *;
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};
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