From 49c9f74cc1bd967ea042bcfc948c849207fa71bf Mon Sep 17 00:00:00 2001
From: Fu Siyuan <siyuan.fu@intel.com>
Date: Mon, 14 Sep 2015 09:06:26 +0000
Subject: NetworkPkg: Update Http driver to use DPC mechanism.

This patch updates the HttpDxe driver to use the DPC mechanism to avoid long
time delay when single event.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18451 6f19259b-4bc3-4df7-8a09-765794883524
---
 NetworkPkg/HttpDxe/HttpProto.c | 54 +++++++++++++++++++++++++++++++++++-------
 1 file changed, 46 insertions(+), 8 deletions(-)

(limited to 'NetworkPkg/HttpDxe/HttpProto.c')

diff --git a/NetworkPkg/HttpDxe/HttpProto.c b/NetworkPkg/HttpDxe/HttpProto.c
index 9b06e24bed..8fbd454110 100644
--- a/NetworkPkg/HttpDxe/HttpProto.c
+++ b/NetworkPkg/HttpDxe/HttpProto.c
@@ -38,20 +38,18 @@ HttpCommonNotify (
 /**
   The notify function associated with TxToken for Tcp4->Transmit().
 
-  @param[in]  Event   The event signaled.
   @param[in]  Context The context.
 
 **/
 VOID
 EFIAPI
-HttpTcpTransmitNotify (
-  IN EFI_EVENT  Event,
+HttpTcpTransmitNotifyDpc (
   IN VOID       *Context
   )
 {
   HTTP_TOKEN_WRAP          *Wrap;
 
-  if ((Event == NULL) || (Context == NULL)) {
+  if (Context == NULL) {
     return ;
   }
 
@@ -79,17 +77,36 @@ HttpTcpTransmitNotify (
 
 }
 
+/**
+  Request HttpTcpTransmitNotifyDpc as a DPC at TPL_CALLBACK.
+
+  @param  Event                 The receive event delivered to TCP for transmit.
+  @param  Context               Context for the callback.
+
+**/
+VOID
+EFIAPI
+HttpTcpTransmitNotify (
+  IN EFI_EVENT                Event,
+  IN VOID                     *Context
+  )
+{
+  //
+  // Request HttpTcpTransmitNotifyDpc as a DPC at TPL_CALLBACK
+  //
+  QueueDpc (TPL_CALLBACK, HttpTcpTransmitNotifyDpc, Context);
+}
+
+
 /**
   The notify function associated with RxToken for Tcp4->Receive ().
 
-  @param[in]  Event   The event signaled.
   @param[in]  Context The context.
 
 **/
 VOID
 EFIAPI
-HttpTcpReceiveNotify (
-  IN EFI_EVENT  Event,
+HttpTcpReceiveNotifyDpc (
   IN VOID       *Context
   )
 {
@@ -99,7 +116,7 @@ HttpTcpReceiveNotify (
   EFI_STATUS               Status;
   HTTP_PROTOCOL            *HttpInstance;
 
-  if ((Event == NULL) || (Context == NULL)) {
+  if (Context == NULL) {
     return ;
   }
 
@@ -173,6 +190,27 @@ HttpTcpReceiveNotify (
   FreePool (Wrap);
 }
 
+/**
+  Request HttpTcpReceiveNotifyDpc as a DPC at TPL_CALLBACK.
+
+  @param  Event                 The receive event delivered to TCP for receive.
+  @param  Context               Context for the callback.
+
+**/
+VOID
+EFIAPI
+HttpTcpReceiveNotify (
+  IN EFI_EVENT                Event,
+  IN VOID                     *Context
+  )
+{
+  //
+  // Request HttpTcpTransmitNotifyDpc as a DPC at TPL_CALLBACK
+  //
+  QueueDpc (TPL_CALLBACK, HttpTcpReceiveNotifyDpc, Context);
+}
+
+
 /**
   Create events for the TCP4 connection token and TCP4 close token.
 
-- 
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