MINOR: support keyword tune.notsent-lowat.client in global section

Signed-off-by: Vincent Gramer <vgramer@haproxy.com>

Author: vgramer

config-parser/section-parsers.go

@@ -326,6 +326,7 @@ func (p *configParser) getGlobalParser() *Parsers { //nolint: maintidx
 	addParser(parser, &sequence, &simple.Number{Name: "tune.maxpollevents"})
 	addParser(parser, &sequence, &simple.Number{Name: "tune.maxrewrite"})
 	addParser(parser, &sequence, &simple.Number{Name: "tune.memory.hot-size"})
+	addParser(parser, &sequence, &simple.Size{Name: "tune.notsent-lowat.client"})
 	addParser(parser, &sequence, &simple.Number{Name: "tune.pattern.cache-size"})
 	addParser(parser, &sequence, &simple.Number{Name: "tune.peers.max-updates-at-once"})
 	addParser(parser, &sequence, &simple.Size{Name: "tune.pipesize"})

config-parser/tests/configs/haproxy.cfg.go

@@ -56,6 +56,7 @@ global
   tune.h2.fe.rxbuf 32k
   tune.h2.zero-copy-fwd-send on
   tune.lua.maxmem 65536
+  tune.notsent-lowat.client 32k
   tune.pt.zero-copy-forwarding on
   tune.renice.runtime -10
   tune.renice.startup 8

configuration/global.go

@@ -1647,6 +1647,15 @@ func parseTuneOptions(p parser.Parser) (*models.TuneOptions, error) { //nolint:g
 		options.H2ZeroCopyFwdSend = strOption
 	}
 
+	intPOption, err = parseSizeOption(p, "tune.notsent-lowat.client")
+	if err != nil {
+		return nil, err
+	}
+	if intPOption != nil {
+		isEmpty = false
+		options.NotsentLowatClient = intPOption
+	}
+
 	strOption, err = parseOnOffOption(p, "tune.pt.zero-copy-forwarding")
 	if err != nil {
 		return nil, err
@@ -3854,6 +3863,9 @@ func serializeTuneOptions(p parser.Parser, options *models.TuneOptions, configOp
 	if err := serializeOnOffOption(p, "tune.h2.zero-copy-fwd-send", options.H2ZeroCopyFwdSend); err != nil {
 		return err
 	}
+	if err := serializeSizeOption(p, "tune.notsent-lowat.client", options.NotsentLowatClient); err != nil {
+		return err
+	}
 	if err := serializeOnOffOption(p, "tune.pt.zero-copy-forwarding", options.PtZeroCopyForwarding); err != nil {
 		return err
 	}

models/tune_options.go

@@ -1615,6 +1615,11 @@ definitions:
         type: integer
         x-display-name: Per-thread Amount of Memory
         x-nullable: true
+      notsent_lowat_client:
+        type: integer
+        x-display-name: Client Not Sent Low Watermark
+        x-nullable: true
+        x-size: true
       pattern_cache_size:
         type: integer
         x-display-name: Pattern Lookup Cache Size

models/tune_options_compare.go

@@ -594,6 +594,11 @@ tune_options:
       type: integer
       x-display-name: Per-thread Amount of Memory
       x-nullable: true
+    notsent_lowat_client:
+      type: integer
+      x-display-name: Client Not Sent Low Watermark
+      x-nullable: true
+      x-size: true
     pattern_cache_size:
       type: integer
       x-display-name: Pattern Lookup Cache Size

models/tune_options_compare_test.go

@@ -246,6 +246,7 @@ global
   tune.h2.fe.max-total-streams 8192
   tune.h2.fe.rxbuf 8k
   tune.lua.burst-timeout 205
+  tune.notsent-lowat.client 32k
   ssl-default-bind-sigalgs RSA+SHA256
   ssl-default-bind-client-sigalgs ECDSA+SHA256:RSA+SHA256
   ssl-default-server-sigalgs RSA+SHA256

specification/build/haproxy_spec.yaml

@@ -311,6 +311,7 @@
             "maxpollevents": 29,
             "maxrewrite": 30,
             "memory_hot_size": 56,
+            "notsent_lowat_client": 32768,
             "pattern_cache_size": 31,
             "peers_max_updates_at_once": 200,
             "pool_high_fd_ratio": 33,