1865040 - Implement Extensible Prioritization Scheme for HTTP/2

Status: RESOLVED FIXED

(Core :: Networking: HTTP, enhancement, P3)

Comment 1

[Mirko Brodesser (:mbrodesser) -- not reading bugmails currently]

Presumably the initial version of fetchpriority can ship without this.

Comment 2

[Valentin Gosu [:valentin] (he/him)]

Attachment: Bug 1865040 - RFC9218 - SETTINGS_NO_RFC7540_PRIORITIES r=#necko

Sends the SETTINGS_NO_RFC7540_PRIORITIES when Priority headers are in use,
or when the network.http.http2.enabled.deps or
network.http.rendering-critical-requests-prioritization prefs are false.

Also adds handler function for RecvPriorityUpdate and does a small cleanup
of the enum and sControlFunctions.

Comment 3

[Valentin Gosu [:valentin] (he/him)]

Attachment: Bug 1865040 - Refactor old H2 priority code r=#necko

• Rename Http2StreamBase::mPriority to mRFC7540Priority in preparation for PriorityUpdate frame changes
• Remove unused Http2Session::GeneratePriority

Comment 4

[Valentin Gosu [:valentin] (he/him)]

Attachment: Bug 1865040 - Add HTTP/2 PriorityUpdate frame r=#necko

See https://www.rfc-editor.org/rfc/rfc9218.html#name-http-2-priority_update-fram

Comment 5

[Valentin Gosu [:valentin] (he/him)]

Attachment: Bug 1865040 - Set network.http.http2.enabled.deps to false r=#necko

This pref controls whether RFC7540 stream dependencies are used.
Since RFC9218 deprecates that mechanism, we can set it to false
with the intention of removing it in the future

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/3db719c0d768
Refactor old H2 priority code r=necko-reviewers,kershaw
https://hg.mozilla.org/integration/autoland/rev/a0b9e10b41d5
Add HTTP/2 PriorityUpdate frame r=necko-reviewers,jesup
https://hg.mozilla.org/integration/autoland/rev/bf04a6a92f69
Set network.http.http2.enabled.deps to false r=necko-reviewers,kershaw

Comment 7

[tszentpeteri]

Backed out for causing bustages in Http2Session.cpp.

• Backout link
• Push with failures
• Failure Log link
• Failure log:

[task 2024-05-21T07:01:22.810Z] 07:01:22     INFO -  gmake[4]: Entering directory '/builds/worker/workspace/obj-build/netwerk/protocol/http'
[task 2024-05-21T07:01:22.813Z] 07:01:22     INFO -  /builds/worker/fetches/sccache/sccache /builds/worker/fetches/clang/bin/clang++ --sysroot /builds/worker/fetches/sysroot-x86_64-linux-gnu -o Unified_cpp_protocol_http1.o -c  -I/builds/worker/workspace/obj-build/dist/stl_wrappers -I/builds/worker/workspace/obj-build/dist/system_wrappers -include /builds/worker/checkouts/gecko/config/gcc_hidden.h -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fstack-protector-strong -fstack-clash-protection -DNDEBUG=1 -DTRIMMED=1 -DMOZ_HAS_MOZGLUE -DMOZILLA_INTERNAL_API -DIMPL_LIBXUL -DSTATIC_EXPORTABLE_JS_API -I/builds/worker/checkouts/gecko/netwerk/protocol/http -I/builds/worker/workspace/obj-build/netwerk/protocol/http -I/builds/worker/workspace/obj-build/ipc/ipdl/_ipdlheaders -I/builds/worker/checkouts/gecko/ipc/chromium/src -I/builds/worker/checkouts/gecko/dom/base -I/builds/worker/checkouts/gecko/netwerk/base -I/builds/worker/checkouts/gecko/netwerk/cookie -I/builds/worker/checkouts/gecko/netwerk/dns -I/builds/worker/checkouts/gecko/netwerk/ipc -I/builds/worker/checkouts/gecko/netwerk/socket/neqo_glue -I/builds/worker/checkouts/gecko/netwerk/url-classifier -I/builds/worker/checkouts/gecko/extensions/auth -I/builds/worker/workspace/obj-build/dist/include -I/builds/worker/workspace/obj-build/dist/include/nspr -I/builds/worker/workspace/obj-build/dist/include/nss -DMOZILLA_CLIENT -include /builds/worker/workspace/obj-build/mozilla-config.h -D_GLIBCXX_USE_CXX11_ABI=0 -pthread -fno-sized-deallocation -fno-aligned-new -fcrash-diagnostics-dir=/builds/worker/artifacts -fno-exceptions -fPIC -fno-rtti -ffunction-sections -fdata-sections -fno-exceptions -fno-math-errno -gdwarf-4 -Xclang -load -Xclang /builds/worker/workspace/obj-build/build/clang-plugin/libclang-plugin.so -Xclang -add-plugin -Xclang moz-check -O2 -fno-omit-frame-pointer -funwind-tables -Werror -Wall -Wbitfield-enum-conversion -Wempty-body -Wformat-type-confusion -Wignored-qualifiers -Wpointer-arith -Wshadow-field-in-constructor-modified -Wsign-compare -Wtautological-constant-in-range-compare -Wtype-limits -Wno-error=tautological-type-limit-compare -Wunreachable-code -Wunreachable-code-return -Wunused-but-set-parameter -Wno-invalid-offsetof -Wclass-varargs -Wempty-init-stmt -Wfloat-overflow-conversion -Wfloat-zero-conversion -Wloop-analysis -Wno-range-loop-analysis -Wenum-compare-conditional -Wenum-float-conversion -Wno-deprecated-anon-enum-enum-conversion -Wno-deprecated-enum-enum-conversion -Wno-deprecated-this-capture -Wcomma -Wimplicit-fallthrough -Wstring-conversion -Wno-inline-new-delete -Wno-error=deprecated-declarations -Wno-error=array-bounds -Wno-error=free-nonheap-object -Wno-error=atomic-alignment -Wno-error=deprecated-builtins -Wformat -Wformat-security -Wno-psabi -Wthread-safety -Wno-error=builtin-macro-redefined -Wno-unknown-warning-option -fno-strict-aliasing -ffp-contract=off  -MD -MP -MF .deps/Unified_cpp_protocol_http1.o.pp   Unified_cpp_protocol_http1.cpp
[task 2024-05-21T07:01:22.813Z] 07:01:22     INFO -  In file included from Unified_cpp_protocol_http1.cpp:83:
[task 2024-05-21T07:01:22.813Z] 07:01:22    ERROR -  /builds/worker/checkouts/gecko/netwerk/protocol/http/Http2Session.cpp:1119:35: error: no member named 'FRAME_TYPE_PRIORITY_UPDATE' in 'mozilla::net::Http2Session'
[task 2024-05-21T07:01:22.814Z] 07:01:22     INFO -   1119 |                     Http2Session::FRAME_TYPE_PRIORITY_UPDATE,
[task 2024-05-21T07:01:22.816Z] 07:01:22     INFO -        |                     ~~~~~~~~~~~~~~^
[task 2024-05-21T07:01:22.816Z] 07:01:22     INFO -  1 error generated.
[task 2024-05-21T07:01:22.816Z] 07:01:22    ERROR -  gmake[4]: *** [/builds/worker/checkouts/gecko/config/rules.mk:688: Unified_cpp_protocol_http1.o] Error 1
[task 2024-05-21T07:01:22.816Z] 07:01:22     INFO -  gmake[4]: Leaving directory '/builds/worker/workspace/obj-build/netwerk/protocol/http'
[task 2024-05-21T07:01:22.816Z] 07:01:22     INFO -  gmake[4]: Entering directory '/builds/worker/workspace/obj-build/third_party/libwebrtc/modules/audio_coding/g711_gn'
[task 2024-05-21T07:01:22.818Z] 07:01:22     INFO -  /builds/worker/fetches/sccache/sccache /builds/worker/fetches/clang/bin/clang++ --sysroot /builds/worker/fetches/sysroot-x86_64-linux-gnu -o Unified_cpp_g711_gn0.o -c  -I/builds/worker/workspace/obj-build/dist/stl_wrappers -I/builds/worker/workspace/obj-build/dist/system_wrappers -include /builds/worker/checkouts/gecko/config/gcc_hidden.h -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fstack-protector-strong -fstack-clash-protection -DNDEBUG -DTRIMMED=1 -DABSL_ALLOCATOR_NOTHROW=1 -DRTC_DAV1D_IN_INTERNAL_DECODER_FACTORY -DRTC_ENABLE_VP9 -DWEBRTC_ENABLE_PROTOBUF=0 -DWEBRTC_LIBRARY_IMPL -DWEBRTC_MOZILLA_BUILD -DWEBRTC_NON_STATIC_TRACE_EVENT_HANDLERS=0 -DWEBRTC_STRICT_FIELD_TRIALS=0 -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DNVALGRIND -DUSE_AURA=1 -DUSE_GLIB=1 -DUSE_NSS_CERTS=1 -DUSE_OZONE=1 -DUSE_UDEV -DWEBRTC_ENABLE_LIBEVENT -DWEBRTC_LINUX -DWEBRTC_POSIX -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -DWEBRTC_ENABLE_AVX2 -DUSE_X11=1 -D_GNU_SOURCE -DMOZ_HAS_MOZGLUE -DMOZILLA_INTERNAL_API -DIMPL_LIBXUL -DSTATIC_EXPORTABLE_JS_API -I/builds/worker/checkouts/gecko/third_party/libwebrtc/modules/audio_coding/g711_gn -I/builds/worker/workspace/obj-build/third_party/libwebrtc/modules/audio_coding/g711_gn -I/builds/worker/workspace/obj-build/ipc/ipdl/_ipdlheaders -I/builds/worker/workspace/obj-build/third_party/libwebrtc/gen -I/builds/worker/checkouts/gecko/ipc/chromium/src -I/builds/worker/checkouts/gecko/third_party/libwebrtc -I/builds/worker/checkouts/gecko/third_party/libwebrtc/third_party/abseil-cpp -I/builds/worker/checkouts/gecko/tools/profiler/public -I/builds/worker/workspace/obj-build/dist/include -DMOZILLA_CLIENT -include /builds/worker/workspace/obj-build/mozilla-config.h -D_GLIBCXX_USE_CXX11_ABI=0 -pthread -fno-sized-deallocation -fno-aligned-new -fcrash-diagnostics-dir=/builds/worker/artifacts -fno-exceptions -fPIC -fno-rtti -ffunction-sections -fdata-sections -fno-exceptions -fno-math-errno -gdwarf-4 -Xclang -load -Xclang /builds/worker/workspace/obj-build/build/clang-plugin/libclang-plugin.so -Xclang -add-plugin -Xclang moz-check -O2 -fno-omit-frame-pointer -funwind-tables -Wall -Wbitfield-enum-conversion -Wempty-body -Wformat-type-confusion -Wignored-qualifiers -Wpointer-arith -Wshadow-field-in-constructor-modified -Wsign-compare -Wtautological-constant-in-range-compare -Wtype-limits -Wno-error=tautological-type-limit-compare -Wunreachable-code -Wunreachable-code-return -Wunused-but-set-parameter -Wno-invalid-offsetof -Wclass-varargs -Wempty-init-stmt -Wfloat-overflow-conversion -Wfloat-zero-conversion -Wloop-analysis -Wno-range-loop-analysis -Wenum-compare-conditional -Wenum-float-conversion -Wno-deprecated-anon-enum-enum-conversion -Wno-deprecated-enum-enum-conversion -Wno-deprecated-this-capture -Wcomma -Wimplicit-fallthrough -Wstring-conversion -Wno-inline-new-delete -Wno-error=deprecated-declarations -Wno-error=array-bounds -Wno-error=free-nonheap-object -Wno-error=atomic-alignment -Wno-error=deprecated-builtins -Wformat -Wformat-security -Wno-psabi -Wthread-safety -Wno-error=builtin-macro-redefined -Wno-unknown-warning-option -fno-strict-aliasing -ffp-contract=off  -MD -MP -MF .deps/Unified_cpp_g711_gn0.o.pp   Unified_cpp_g711_gn0.cpp
[task 2024-05-21T07:01:22.819Z] 07:01:22     INFO -  gmake[4]: Leaving directory '/builds/worker/workspace/obj-build/third_party/libwebrtc/modules/audio_coding/g711_gn'
[task 2024-05-21T07:01:22.819Z] 07:01:22     INFO -  gmake[4]: Entering directory '/builds/worker/workspace/obj-build/third_party/libwebrtc/modules/audio_coding/g711_gn'
[task 2024-05-21T07:01:22.819Z] 07:01:22     INFO -  gmake[4]: Leaving directory '/builds/worker/workspace/obj-build/third_party/libwebrtc/modules/audio_coding/g711_gn'
[task 2024-05-21T07:01:22.819Z] 07:01:22     INFO -  gmake[4]: Entering directory '/builds/worker/workspace/obj-build/third_party/libwebrtc/modules/audio_coding/isac_vad_gn'
[task 2024-05-21T07:01:22.820Z] 07:01:22     INFO -  mkdir -p '.deps/'

Comment 8

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/f40635aceea6
RFC9218 - SETTINGS_NO_RFC7540_PRIORITIES r=necko-reviewers,kershaw
https://hg.mozilla.org/integration/autoland/rev/ed8613ac1835
Refactor old H2 priority code r=necko-reviewers,kershaw
https://hg.mozilla.org/integration/autoland/rev/6cfbbceb35be
Add HTTP/2 PriorityUpdate frame r=necko-reviewers,jesup
https://hg.mozilla.org/integration/autoland/rev/deedf2798076
Set network.http.http2.enabled.deps to false r=necko-reviewers,kershaw

Comment 9

[Aron Cseh]

https://hg.mozilla.org/mozilla-central/rev/f40635aceea6
https://hg.mozilla.org/mozilla-central/rev/ed8613ac1835
https://hg.mozilla.org/mozilla-central/rev/6cfbbceb35be
https://hg.mozilla.org/mozilla-central/rev/deedf2798076

Comment 10

[Hamish Willee]

FF128 MDN docs for this can be tracked in https://github.com/mdn/content/issues/33847

Comment 11

[Andrew Creskey [:acreskey]]

In Bug 1909666 we re-enabled network.http.http2.enabled.deps due to instances of site breaking.