include/uuid.h: add comments for public APIs
Change-Id: I96a0822fdf8fe9a83283ca71d391821855edb21f Signed-off-by: Yanbo Zhou <yanbo.zhou@intel.com> Reviewed-on: https://review.gerrithub.io/406921 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Paul Luse <paul.e.luse@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
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@ -60,7 +60,8 @@ SPDK_STATIC_ASSERT(sizeof(struct spdk_uuid) == 16, "Incorrect size");
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*
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* \param uuid[output] User-provided UUID buffer.
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* \param uuid_str UUID in textual format in C string.
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* \return 0 on success, or negated errno on failure.
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*
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* \return 0 on success, or negative errno on failure.
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*/
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int spdk_uuid_parse(struct spdk_uuid *uuid, const char *uuid_str);
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@ -68,15 +69,20 @@ int spdk_uuid_parse(struct spdk_uuid *uuid, const char *uuid_str);
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* Convert UUID in spdk_uuid into lowercase textual format.
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*
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* \param uuid_str User-provided string buffer to write the textual format into.
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* \param uuid_str_size Size of uuid_str buffer. Must be at least SPDK_UUID_STRING_LEN.
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* \param uuid_str_size Size of uuid_str buffer. Must be at least SPDK_UUID_STRING_LEN.
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* \param uuid UUID to convert to textual format.
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*
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* \return 0 on success, or negative errno on failure.
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*/
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int spdk_uuid_fmt_lower(char *uuid_str, size_t uuid_str_size, const struct spdk_uuid *uuid);
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/**
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* Compare two UUIDs.
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*
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* \return 0 if u1 == u2, less than 0 if u1 < u2, greater than 0 if u1 > u2
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* \param u1 UUID 1.
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* \param u2 UUID 2.
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*
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* \return 0 if u1 == u2, less than 0 if u1 < u2, greater than 0 if u1 > u2.
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*/
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int spdk_uuid_compare(const struct spdk_uuid *u1, const struct spdk_uuid *u2);
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