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feat: std.http read buffers grow on demand toward read_buf_cap

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read_buf_cap is now the per-request LIMIT, not a preallocation: slots
start at 16K, double when full (one-step sizing when a Content-Length
declares the body), and keep their grown capacity for slot reuse. At
the limit the refusal distinguishes oversized headers (431) from an
oversized body (413). Unblocks A1: distd accepts multi-hundred-MB
artifact uploads — preallocating that per slot was never an option.
examples/1633 adds a body past the initial capacity echoing intact.
This commit is contained in:
agra
2026-06-12 21:29:13 +03:00
parent 3a97019aa7
commit 8641441fad
40 changed files with 13450 additions and 13109 deletions
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examples/expected/0031-basic-local-fn-return.ir
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examples/expected/0032-basic-ufcs-return-type.ir
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examples/expected/0400-protocols-impl-for-builtin.ir
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examples/expected/0507-packs-pack-mono-dedup.ir
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examples/expected/0903-optionals-optional-roundtrip.ir
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examples/expected/0904-optionals-any-to-string-optional.ir
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examples/expected/1202-ffi-cc-c-large-aggregate.ir
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@@ -917,6 +917,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

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examples/expected/1309-ffi-objc-class-method-lowering.ir
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@@ -1409,6 +1409,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

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examples/expected/1314-ffi-objc-class-dealloc-roundtrip.ir
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@@ -1425,6 +1425,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

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examples/expected/1319-ffi-objc-property-sx-defined.ir
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examples/expected/1329-ffi-objc-call-03-selector-sharing.ir
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@@ -1401,6 +1401,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

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examples/expected/1332-ffi-objc-call-06-sret-return.ir
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examples/expected/1347-ffi-objc-dsl-07-mangling-table.ir
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@@ -1427,6 +1427,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

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examples/expected/1402-ffi-jni-call-03-methodid-sharing.ir
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@@ -1403,6 +1403,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

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examples/expected/1403-ffi-jni-call-04-jint-return.ir
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@@ -1401,6 +1401,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

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examples/expected/1404-ffi-jni-call-05-jlong-return.ir
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@@ -1401,6 +1401,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

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examples/expected/1405-ffi-jni-call-06-jdouble-return.ir
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@@ -1401,6 +1401,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

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examples/expected/1406-ffi-jni-call-07-jboolean-return.ir
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@@ -1401,6 +1401,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

3
examples/expected/1407-ffi-jni-call-08-jobject-return.ir
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@@ -1401,6 +1401,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

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examples/expected/1408-ffi-jni-call-09-static.ir
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@@ -1401,6 +1401,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

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examples/expected/1418-ffi-jni-class-08-call.ir
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@@ -1401,6 +1401,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

3
examples/expected/1421-ffi-jni-env-02-lexical-direct.ir
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@@ -1401,6 +1401,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

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examples/expected/1425-ffi-jni-main-03-ctor.ir
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@@ -924,6 +924,9 @@ declare void @Server.run(ptr, ptr) #0
; Function Attrs: nounwind
declare void @Server.accept_ready(ptr, ptr) #0
; Function Attrs: nounwind
declare i1 @Server.grow_read_buf(ptr, ptr, i64, i64) #0
; Function Attrs: nounwind
declare void @Server.read_more(ptr, ptr, i64) #0

1
examples/expected/1633-http-server.stdout
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@@ -3,5 +3,6 @@ keep-alive reuse ok
request cap: close + EOF
POST echo ok
404 routing ok
big body grows the buffer and echoes intact
slow client evicted, healthy client served
http server ok