util/blob: Clarify rules on blob::data
Reviewed-by: Jason Ekstrand <jason.ekstrand@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15028>
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@ -47,7 +47,10 @@ extern "C" {
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*/
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struct blob {
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/* The data actually written to the blob. */
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/* The data actually written to the blob. Never read or write this directly
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* when serializing, use blob_reserve_* and blob_overwrite_* instead which
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* check for out_of_memory and handle fixed-size blobs correctly.
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*/
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uint8_t *data;
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/** Number of bytes that have been allocated for \c data. */
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