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UCP/API: docs - user can modify buffer after calling ucp_atomic_op_nbx as its being packed (copied) #11126

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Merged
gleon99 merged 3 commits into from
Feb 12, 2026
Merged

UCP/API: docs - user can modify buffer after calling ucp_atomic_op_nbx as its being packed (copied) #11126

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UCP/API: docs - user can modify buffer after calling ucp_atomic_op_nb…
roiedanino Jan 20, 2026
4e47366
UCP/API: added an explicit note for non-fetching operations
roiedanino Jan 20, 2026
1d3e6c3
UCP/API: fixed phrasing
roiedanino Jan 20, 2026
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7 changes: 4 additions & 3 deletions src/ucp/api/ucp.h
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Expand Up @@ -3787,9 +3787,10 @@ ucs_status_ptr_t ucp_get_nbx(ucp_ep_h ep, void *buffer, size_t count,
* @a param.reply_buffer. Please see @ref atomic_ops "table" below for more
* details.
*
* @note The user should not modify any part of the @a buffer (or also
* @a param->reply_buffer for fetch operations), until the operation
* completes.
* @note The user should not modify any part of the @a param->reply_buffer
* in fetching operations, until the operation completes.
* @note For non-fethcing operations @a buffer can be modified / released
* before the operation completes.
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* @note Only ucp_dt_make_config(4) and ucp_dt_make_contig(8) are supported
* in @a param->datatype, see @ref ucp_dt_make_contig. Also, currently
* atomic operations can handle one element only. Thus, @a count
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