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refactor(channelserver): replace global stagesLock with sync.Map-backed StageMap

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The global stagesLock sync.RWMutex protected map[string]*Stage, causing
all stage operations to contend on a single lock even for unrelated
stages. Any stage creation or deletion blocked all reads server-wide.

Replace with a typed StageMap wrapper around sync.Map which provides
lock-free reads and allows concurrent writes to disjoint keys. Per-stage
sync.RWMutex remains unchanged for protecting individual stage state.

StageMap exposes Get, GetOrCreate, StoreIfAbsent, Store, Delete, and
Range methods. Updated ~50 call sites across 6 production files and
9 test files.
This commit is contained in:
Houmgaor
2026-02-22 15:47:21 +01:00
parent 2a5cd50e3f
commit ad4afb4d3b
15 changed files with 207 additions and 221 deletions
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12
server/channelserver/channel_registry_test.go
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@@ -61,9 +61,7 @@ func TestLocalRegistryFindChannelForStage(t *testing.T) {
channels[1].GlobalID = "0102"
reg := NewLocalChannelRegistry(channels)
channels[1].stagesLock.Lock()
channels[1].stages["sl2Qs123p0a0u42"] = NewStage("sl2Qs123p0a0u42")
channels[1].stagesLock.Unlock()
channels[1].stages.Store("sl2Qs123p0a0u42", NewStage("sl2Qs123p0a0u42"))
gid := reg.FindChannelForStage("u42")
if gid != "0102" {
@@ -136,11 +134,9 @@ func TestLocalRegistrySearchStages(t *testing.T) {
channels := createTestChannels(1)
reg := NewLocalChannelRegistry(channels)
channels[0].stagesLock.Lock()
channels[0].stages["sl2Ls210test1"] = NewStage("sl2Ls210test1")
channels[0].stages["sl2Ls210test2"] = NewStage("sl2Ls210test2")
channels[0].stages["sl1Ns200other"] = NewStage("sl1Ns200other")
channels[0].stagesLock.Unlock()
channels[0].stages.Store("sl2Ls210test1", NewStage("sl2Ls210test1"))
channels[0].stages.Store("sl2Ls210test2", NewStage("sl2Ls210test2"))
channels[0].stages.Store("sl1Ns200other", NewStage("sl1Ns200other"))
results := reg.SearchStages("sl2Ls210", 10)
if len(results) != 2 {