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51 lines
1.8 KiB
ReStructuredText
51 lines
1.8 KiB
ReStructuredText
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nghttp2_submit_priority
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=======================
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Synopsis
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--------
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*#include <nghttp2/nghttp2.h>*
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.. function:: int nghttp2_submit_priority(nghttp2_session *session, uint8_t flags, int32_t stream_id, const nghttp2_priority_spec *pri_spec)
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.. warning::
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Deprecated. :rfc:`7540` priorities are deprecated by
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:rfc:`9113`. Consider migrating to :rfc:`9218` extensible
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prioritization scheme. In the future release after the end of
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2024, this function will always return 0 without doing anything.
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Submits PRIORITY frame to change the priority of stream *stream_id*
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to the priority specification *pri_spec*.
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The *flags* is currently ignored and should be
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:enum:`nghttp2_flag.NGHTTP2_FLAG_NONE`.
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The *pri_spec* is a deprecated priority specification of this
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request. ``NULL`` is not allowed for this function. To specify the
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priority, use `nghttp2_priority_spec_init()`. This function will
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copy its data members.
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The ``pri_spec->weight`` must be in [:macro:`NGHTTP2_MIN_WEIGHT`,
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:macro:`NGHTTP2_MAX_WEIGHT`], inclusive. If ``pri_spec->weight``
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is strictly less than :macro:`NGHTTP2_MIN_WEIGHT`, it becomes
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:macro:`NGHTTP2_MIN_WEIGHT`. If it is strictly greater than
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:macro:`NGHTTP2_MAX_WEIGHT`, it becomes
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:macro:`NGHTTP2_MAX_WEIGHT`.
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If
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:enum:`nghttp2_settings_id.NGHTTP2_SETTINGS_NO_RFC7540_PRIORITIES`
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of value of 1 is received by a remote endpoint, this function does
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nothing and returns 0.
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This function returns 0 if it succeeds, or one of the following
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negative error codes:
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:enum:`nghttp2_error.NGHTTP2_ERR_NOMEM`
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Out of memory.
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:enum:`nghttp2_error.NGHTTP2_ERR_INVALID_ARGUMENT`
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The *stream_id* is 0; or the *pri_spec* is NULL; or trying to
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depend on itself.
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