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[onert] Add API function for retrieving last error message #16282

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Merged
hseok-oh merged 4 commits into from
Feb 6, 2026
Merged

[onert] Add API function for retrieving last error message #16282

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21dbdb2
Refactor loadModel helper so it will not print to stderr
arkq Nov 7, 2025
e00851e
Add getTensorIndexImpl as a private member of Session
arkq Nov 12, 2025
897d08e
Refactor Session::deprecated function to be non-static
arkq Nov 12, 2025
47ed86b
[onert] Add API function for retrieving last error message
arkq Nov 6, 2025
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13 changes: 13 additions & 0 deletions runtime/onert/api/nnfw/include/nnfw.h
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Original file line number Diff line number Diff line change
Expand Up @@ -212,6 +212,19 @@ NNFW_STATUS nnfw_create_session(nnfw_session **session);
*/
NNFW_STATUS nnfw_close_session(nnfw_session *session);

/**
* @brief Get the last error message
*
* This function retrieves the last error message occurred in the session.
*
* @param[in] session The session to get the last error message from
* @param[out] buffer Buffer to store the last error message string
* @param[in] length The size of the buffer
* @return @c NNFW_STATUS_NO_ERROR if successful, otherwise appropriate
* error code and the content of buffer is not changed.
*/
NNFW_STATUS nnfw_get_last_error_message(nnfw_session *session, char *buffer, size_t length);

/**
* @brief Load model from path to model or nnpackage
*
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31 changes: 21 additions & 10 deletions runtime/onert/api/nnfw/src/APIImpl.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,12 @@ NNFW_STATUS nnfw_close_session(nnfw_session *session)
return NNFW_STATUS_NO_ERROR;
}

NNFW_STATUS nnfw_get_last_error_message(nnfw_session *session, char *buffer, size_t length)
{
NNFW_RETURN_ERROR_IF_NULL(session);
return reinterpret_cast<Session *>(session)->get_last_error_message(buffer, length);
}

NNFW_STATUS nnfw_load_model_from_file(nnfw_session *session, const char *path)
{
NNFW_RETURN_ERROR_IF_NULL(session);
Expand Down Expand Up @@ -170,9 +176,10 @@ NNFW_STATUS nnfw_register_custom_op_info(nnfw_session *session, const char *id,
return reinterpret_cast<Session *>(session)->register_custom_operation(id, info->eval_function);
}

NNFW_STATUS nnfw_apply_tensorinfo(nnfw_session *, uint32_t, nnfw_tensorinfo)
NNFW_STATUS nnfw_apply_tensorinfo(nnfw_session *session, uint32_t, nnfw_tensorinfo)
{
return Session::deprecated("nnfw_apply_tensorinfo: Deprecated");
NNFW_RETURN_ERROR_IF_NULL(session);
return reinterpret_cast<Session *>(session)->deprecated("nnfw_apply_tensorinfo: Deprecated");
}

NNFW_STATUS nnfw_set_input_tensorinfo(nnfw_session *session, uint32_t index,
Expand All @@ -188,9 +195,10 @@ NNFW_STATUS nnfw_set_available_backends(nnfw_session *session, const char *backe
return reinterpret_cast<Session *>(session)->set_available_backends(backends);
}

NNFW_STATUS nnfw_set_op_backend(nnfw_session *, const char *, const char *)
NNFW_STATUS nnfw_set_op_backend(nnfw_session *session, const char *, const char *)
{
return Session::deprecated("nnfw_set_op_backend: Deprecated");
NNFW_RETURN_ERROR_IF_NULL(session);
return reinterpret_cast<Session *>(session)->deprecated("nnfw_set_op_backend: Deprecated");
}

NNFW_STATUS nnfw_query_info_u32(nnfw_session *session, NNFW_INFO_ID id, uint32_t *val)
Expand Down Expand Up @@ -230,19 +238,22 @@ NNFW_STATUS nnfw_set_backends_per_operation(nnfw_session *session, const char *b
return reinterpret_cast<Session *>(session)->set_backends_per_operation(backend_settings);
}

NNFW_STATUS nnfw_prepare_pipeline(nnfw_session *, const char *)
NNFW_STATUS nnfw_prepare_pipeline(nnfw_session *session, const char *)
{
return Session::deprecated("nnfw_prepare_pipeline: Deprecated");
NNFW_RETURN_ERROR_IF_NULL(session);
return reinterpret_cast<Session *>(session)->deprecated("nnfw_prepare_pipeline: Deprecated");
}

NNFW_STATUS nnfw_push_pipeline_input(nnfw_session *, void *, void *)
NNFW_STATUS nnfw_push_pipeline_input(nnfw_session *session, void *, void *)
{
return Session::deprecated("nnfw_push_pipeline_input: Deprecated");
NNFW_RETURN_ERROR_IF_NULL(session);
return reinterpret_cast<Session *>(session)->deprecated("nnfw_push_pipeline_input: Deprecated");
}

NNFW_STATUS nnfw_pop_pipeline_output(nnfw_session *, void *)
NNFW_STATUS nnfw_pop_pipeline_output(nnfw_session *session, void *)
{
return Session::deprecated("nnfw_pop_pipeline_output: Deprecated");
NNFW_RETURN_ERROR_IF_NULL(session);
return reinterpret_cast<Session *>(session)->deprecated("nnfw_pop_pipeline_output: Deprecated");
}

NNFW_STATUS nnfw_set_workspace(nnfw_session *session, const char *dir)
Expand Down
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