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体验新版 GitCode,发现更多精彩内容 >>
提交
00e9a2f3
编写于
11月 03, 2016
作者:
C
CyrusNajmabadi
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电子邮件补丁
差异文件
Stash around completed tasks to prevent task allocations.
上级
8705f523
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
15 addition
and
9 deletion
+15
-9
src/Workspaces/Core/Portable/FindSymbols/SymbolTree/SymbolTreeInfo.cs
...es/Core/Portable/FindSymbols/SymbolTree/SymbolTreeInfo.cs
+2
-1
src/Workspaces/Core/Portable/FindSymbols/SymbolTree/SymbolTreeInfo_Metadata.cs
...ortable/FindSymbols/SymbolTree/SymbolTreeInfo_Metadata.cs
+13
-8
未找到文件。
src/Workspaces/Core/Portable/FindSymbols/SymbolTree/SymbolTreeInfo.cs
浏览文件 @
00e9a2f3
...
...
@@ -303,7 +303,8 @@ private int BinarySearch(string name)
// of immutable state (like a Solution) that we don't want kept around indefinitely. So we
// only cache results (the symbol tree infos) if they successfully compute to completion.
private
static
readonly
ConditionalWeakTable
<
MetadataId
,
SemaphoreSlim
>
s_metadataIdToGate
=
new
ConditionalWeakTable
<
MetadataId
,
SemaphoreSlim
>();
private
static
readonly
ConditionalWeakTable
<
MetadataId
,
SymbolTreeInfo
>
s_metadataIdToInfo
=
new
ConditionalWeakTable
<
MetadataId
,
SymbolTreeInfo
>();
private
static
readonly
ConditionalWeakTable
<
MetadataId
,
Task
<
SymbolTreeInfo
>>
s_metadataIdToInfo
=
new
ConditionalWeakTable
<
MetadataId
,
Task
<
SymbolTreeInfo
>>();
private
static
readonly
ConditionalWeakTable
<
MetadataId
,
SemaphoreSlim
>.
CreateValueCallback
s_metadataIdToGateCallback
=
_
=>
new
SemaphoreSlim
(
1
);
...
...
src/Workspaces/Core/Portable/FindSymbols/SymbolTree/SymbolTreeInfo_Metadata.cs
浏览文件 @
00e9a2f3
...
...
@@ -87,10 +87,10 @@ private static Metadata GetMetadataNoThrow(PortableExecutableReference reference
// allocations around acquiring the task for it. Note: once ValueTask is available
// (and enabled in the language), we'd likely want to use it here. (Presuming
// the lock is not being held most of the time).
SymbolTreeInfo
info
;
if
(
s_metadataIdToInfo
.
TryGetValue
(
metadata
.
Id
,
out
info
))
Task
<
SymbolTreeInfo
>
infoTask
;
if
(
s_metadataIdToInfo
.
TryGetValue
(
metadata
.
Id
,
out
info
Task
))
{
return
Task
.
FromResult
(
info
)
;
return
infoTask
;
}
return
TryGetInfoForMetadataReferenceSlowAsync
(
...
...
@@ -108,20 +108,25 @@ private static Metadata GetMetadataNoThrow(PortableExecutableReference reference
{
cancellationToken
.
ThrowIfCancellationRequested
();
SymbolTreeInfo
info
;
if
(
s_metadataIdToInfo
.
TryGetValue
(
metadata
.
Id
,
out
info
))
Task
<
SymbolTreeInfo
>
infoTask
;
if
(
s_metadataIdToInfo
.
TryGetValue
(
metadata
.
Id
,
out
info
Task
))
{
return
info
;
return
await
infoTask
.
ConfigureAwait
(
false
)
;
}
info
=
await
LoadOrCreateMetadataSymbolTreeInfoAsync
(
var
info
=
await
LoadOrCreateMetadataSymbolTreeInfoAsync
(
solution
,
reference
,
loadOnly
,
cancellationToken
:
cancellationToken
).
ConfigureAwait
(
false
);
if
(
info
==
null
&&
loadOnly
)
{
return
null
;
}
return
s_metadataIdToInfo
.
GetValue
(
metadata
.
Id
,
_
=>
info
);
// Cache the result in our dictionary. Store it as a completed task so that
// future callers don't need to allocate to get the result back.
infoTask
=
Task
.
FromResult
(
info
);
s_metadataIdToInfo
.
Add
(
metadata
.
Id
,
infoTask
);
return
info
;
}
}
...
...
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