Support UEFI shell execution break.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Cinnamon Shia <cinnamon.s...@hpe.com>
---
 ShellPkg/Library/UefiDpLib/Dp.c         | 48 ++++++++++++++++++++-------
 ShellPkg/Library/UefiDpLib/DpInternal.h | 24 ++++++++++----
 ShellPkg/Library/UefiDpLib/DpTrace.c    | 57 +++++++++++++++++++++++++++++----
 ShellPkg/Library/UefiDpLib/UefiDpLib.h  |  6 ++++
 4 files changed, 110 insertions(+), 25 deletions(-)

diff --git a/ShellPkg/Library/UefiDpLib/Dp.c b/ShellPkg/Library/UefiDpLib/Dp.c
index 6b06d20..0176e31 100644
--- a/ShellPkg/Library/UefiDpLib/Dp.c
+++ b/ShellPkg/Library/UefiDpLib/Dp.c
@@ -14,7 +14,7 @@
   timer information to calculate elapsed time for each measurement.
  
   Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.
-  (C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>
+  (C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP<BR>
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD 
License
   which accompanies this distribution.  The full text of the license may be 
found at
@@ -137,10 +137,10 @@ InitCumulativeData (
   @param[in]  ImageHandle     The image handle.
   @param[in]  SystemTable     The system table.
   
-  @retval EFI_SUCCESS            Command completed successfully.
-  @retval EFI_INVALID_PARAMETER  Command usage error.
-  @retval value                  Unknown error.
-  
+  @retval SHELL_SUCCESS            Command completed successfully.
+  @retval SHELL_INVALID_PARAMETER  Command usage error.
+  @retval SHELL_ABORTED            The user aborts the operation.
+  @retval value                    Unknown error.
 **/
 SHELL_STATUS
 EFIAPI
@@ -168,6 +168,7 @@ ShellCommandRunDp (
   BOOLEAN                   CumulativeMode;
   CONST CHAR16              *CustomCumulativeToken;
   PERF_CUM_DATA             *CustomCumulativeData;
+  SHELL_STATUS              ShellStatus;
 
   StringPtr   = NULL;
   SummaryMode = FALSE;
@@ -179,6 +180,7 @@ ShellCommandRunDp (
   ExcludeMode = FALSE;
   CumulativeMode = FALSE;
   CustomCumulativeData = NULL;
+  ShellStatus = SHELL_SUCCESS;
 
   // Get DP's entry time as soon as possible.
   // This is used as the Shell-Phase end time.
@@ -329,14 +331,22 @@ ShellCommandRunDp (
     ProcessCumulative (CustomCumulativeData);
   } else if (AllMode) {
     if (TraceMode) {
-      DumpAllTrace( Number2Display, ExcludeMode);
+      Status = DumpAllTrace( Number2Display, ExcludeMode);
+      if (Status == EFI_ABORTED) {
+        ShellStatus = SHELL_ABORTED;
+        goto Done;
+      }
     }
     if (ProfileMode) {
       DumpAllProfile( Number2Display, ExcludeMode);
     }
   } else if (RawMode) {
     if (TraceMode) {
-      DumpRawTrace( Number2Display, ExcludeMode);
+      Status = DumpRawTrace( Number2Display, ExcludeMode);
+      if (Status == EFI_ABORTED) {
+        ShellStatus = SHELL_ABORTED;
+        goto Done;
+      }
     }
     if (ProfileMode) {
       DumpRawProfile( Number2Display, ExcludeMode);
@@ -347,11 +357,24 @@ ShellCommandRunDp (
       ProcessPhases ( Ticker );
       if ( ! SummaryMode) {
         Status = ProcessHandles ( ExcludeMode);
-        if ( ! EFI_ERROR( Status)) {
-          ProcessPeims ();
-          ProcessGlobal ();
-          ProcessCumulative (NULL);
+        if (Status == EFI_ABORTED) {
+          ShellStatus = SHELL_ABORTED;
+          goto Done;
+        }
+
+        Status = ProcessPeims ();
+        if (Status == EFI_ABORTED) {
+          ShellStatus = SHELL_ABORTED;
+          goto Done;
+        }
+
+        Status = ProcessGlobal ();
+        if (Status == EFI_ABORTED) {
+          ShellStatus = SHELL_ABORTED;
+          goto Done;
         }
+
+        ProcessCumulative (NULL);
       }
     }
     if (ProfileMode) {
@@ -362,11 +385,12 @@ ShellCommandRunDp (
     DumpStatistics();
   }
 
+Done:
   SHELL_FREE_NON_NULL (StringPtr);
   if (CustomCumulativeData != NULL) {
     SHELL_FREE_NON_NULL (CustomCumulativeData->Name);
   }
   SHELL_FREE_NON_NULL (CustomCumulativeData);
 
-  return SHELL_SUCCESS;
+  return ShellStatus;
 }
diff --git a/ShellPkg/Library/UefiDpLib/DpInternal.h 
b/ShellPkg/Library/UefiDpLib/DpInternal.h
index aa07fea..b5ec5f0 100644
--- a/ShellPkg/Library/UefiDpLib/DpInternal.h
+++ b/ShellPkg/Library/UefiDpLib/DpInternal.h
@@ -7,7 +7,7 @@
   DpUtilities.c, DpTrace.c, and DpProfile.c are included here.
 
   Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.
-  (C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>
+  (C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP<BR>
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD 
License
   which accompanies this distribution.  The full text of the license may be 
found at
@@ -198,8 +198,11 @@ GatherStatistics(
   @param[in]    Limit       The number of records to print.  Zero is ALL.
   @param[in]    ExcludeFlag TRUE to exclude individual Cumulative items from 
display.
   
+  @retval EFI_SUCCESS           The operation was successful.
+  @retval EFI_ABORTED           The user aborts the operation.
+  @return Others                from a call to gBS->LocateHandleBuffer().
 **/
-VOID
+EFI_STATUS
 DumpAllTrace(
   IN UINTN             Limit,
   IN BOOLEAN           ExcludeFlag
@@ -221,9 +224,10 @@ DumpAllTrace(
   
   @param[in]    Limit       The number of records to print.  Zero is ALL.
   @param[in]    ExcludeFlag TRUE to exclude individual Cumulative items from 
display.
-  
+  @retval EFI_SUCCESS           The operation was successful.
+  @retval EFI_ABORTED           The user aborts the operation.
 **/
-VOID
+EFI_STATUS
 DumpRawTrace(
   IN UINTN          Limit,
   IN BOOLEAN        ExcludeFlag
@@ -246,7 +250,9 @@ ProcessPhases(
   
   @param[in]    ExcludeFlag   TRUE to exclude individual Cumulative items from 
display.
   
-  @return       Status from a call to gBS->LocateHandle().
+  @retval EFI_SUCCESS             The operation was successful.
+  @retval EFI_ABORTED             The user aborts the operation.
+  @return Others                  from a call to gBS->LocateHandleBuffer().
 **/
 EFI_STATUS
 ProcessHandles(
@@ -259,8 +265,10 @@ ProcessHandles(
   
   Only prints complete PEIM records
   
+  @retval EFI_SUCCESS           The operation was successful.
+  @retval EFI_ABORTED           The user aborts the operation.
 **/
-VOID
+EFI_STATUS
 ProcessPeims(
   VOID
   );
@@ -273,8 +281,10 @@ ProcessPeims(
   Increment TIndex for every record, even skipped ones, so that we have an
   indication of every measurement record taken.
   
+  @retval EFI_SUCCESS           The operation was successful.
+  @retval EFI_ABORTED           The user aborts the operation.
 **/
-VOID
+EFI_STATUS
 ProcessGlobal(
   VOID
   );
diff --git a/ShellPkg/Library/UefiDpLib/DpTrace.c 
b/ShellPkg/Library/UefiDpLib/DpTrace.c
index 22b83d0..c1074d5 100644
--- a/ShellPkg/Library/UefiDpLib/DpTrace.c
+++ b/ShellPkg/Library/UefiDpLib/DpTrace.c
@@ -136,8 +136,11 @@ GatherStatistics(
   @param[in]    Limit       The number of records to print.  Zero is ALL.
   @param[in]    ExcludeFlag TRUE to exclude individual Cumulative items from 
display.
   
+  @retval EFI_SUCCESS           The operation was successful.
+  @retval EFI_ABORTED           The user aborts the operation.
+  @return Others                from a call to gBS->LocateHandleBuffer().
 **/
-VOID
+EFI_STATUS
 DumpAllTrace(
   IN UINTN             Limit,
   IN BOOLEAN           ExcludeFlag
@@ -257,12 +260,18 @@ DumpAllTrace(
           ElapsedTime
         );
       }
+      if (ShellGetExecutionBreakFlag ()) {
+        Status = EFI_ABORTED;
+        break;
+      }
     }
   }
   if (HandleBuffer != NULL) {
     FreePool (HandleBuffer);
   }
   SHELL_FREE_NON_NULL (IncFlag);
+
+  return Status;
 }
 
 /** 
@@ -281,9 +290,11 @@ DumpAllTrace(
   
   @param[in]    Limit       The number of records to print.  Zero is ALL.
   @param[in]    ExcludeFlag TRUE to exclude individual Cumulative items from 
display.
-  
+
+  @retval EFI_SUCCESS           The operation was successful.
+  @retval EFI_ABORTED           The user aborts the operation.
 **/
-VOID
+EFI_STATUS
 DumpRawTrace(
   IN UINTN          Limit,
   IN BOOLEAN        ExcludeFlag
@@ -298,6 +309,9 @@ DumpRawTrace(
 
   EFI_STRING    StringPtr;
   EFI_STRING    StringPtrUnknown;
+  EFI_STATUS    Status;
+
+  Status = EFI_SUCCESS;
 
   StringPtrUnknown = HiiGetString (gDpHiiHandle, STRING_TOKEN 
(STR_ALIT_UNKNOWN), NULL);  
   StringPtr = HiiGetString (gDpHiiHandle, STRING_TOKEN 
(STR_DP_SECTION_RAWTRACE), NULL);
@@ -361,7 +375,12 @@ DumpRawTrace(
         Measurement.Module
       );
     }
+    if (ShellGetExecutionBreakFlag ()) {
+      Status = EFI_ABORTED;
+      break;
+    }
   }
+  return Status;
 }
 
 /** 
@@ -510,7 +529,9 @@ ProcessPhases(
   
   @param[in]    ExcludeFlag   TRUE to exclude individual Cumulative items from 
display.
   
-  @return       Status from a call to gBS->LocateHandle().
+  @retval EFI_SUCCESS             The operation was successful.
+  @retval EFI_ABORTED             The user aborts the operation.
+  @return Others                  from a call to gBS->LocateHandleBuffer().
 **/
 EFI_STATUS
 ProcessHandles(
@@ -606,6 +627,10 @@ ProcessHandles(
           );
         }
       }
+      if (ShellGetExecutionBreakFlag ()) {
+        Status = EFI_ABORTED;
+        break;
+      }
     }
   }
   if (HandleBuffer != NULL) {
@@ -619,8 +644,10 @@ ProcessHandles(
   
   Only prints complete PEIM records
   
+  @retval EFI_SUCCESS           The operation was successful.
+  @retval EFI_ABORTED           The user aborts the operation.
 **/
-VOID
+EFI_STATUS
 ProcessPeims(
   VOID
 )
@@ -632,6 +659,9 @@ ProcessPeims(
   UINTN                     LogEntryKey;
   UINTN                     TIndex;
   EFI_STRING                StringPtrUnknown;
+  EFI_STATUS                Status;
+
+  Status = EFI_SUCCESS;
 
   StringPtrUnknown = HiiGetString (gDpHiiHandle, STRING_TOKEN 
(STR_ALIT_UNKNOWN), NULL);  
   StringPtr = HiiGetString (gDpHiiHandle, STRING_TOKEN (STR_DP_SECTION_PEIMS), 
NULL);
@@ -685,7 +715,12 @@ ProcessPeims(
         );
       }
     }
+    if (ShellGetExecutionBreakFlag ()) {
+      Status = EFI_ABORTED;
+      break;
+    }
   }
+  return Status;
 }
 
 /** 
@@ -696,8 +731,10 @@ ProcessPeims(
   Increment TIndex for every record, even skipped ones, so that we have an
   indication of every measurement record taken.
   
+  @retval EFI_SUCCESS           The operation was successful.
+  @retval EFI_ABORTED           The user aborts the operation.
 **/
-VOID
+EFI_STATUS
 ProcessGlobal(
   VOID
 )
@@ -709,6 +746,9 @@ ProcessGlobal(
   UINTN                     LogEntryKey;
   UINTN                     Index;        // Index, or number, of the 
measurement record being processed
   EFI_STRING                StringPtrUnknown;
+  EFI_STATUS                Status;
+
+  Status = EFI_SUCCESS;
 
   StringPtrUnknown = HiiGetString (gDpHiiHandle, STRING_TOKEN 
(STR_ALIT_UNKNOWN), NULL);  
   StringPtr = HiiGetString (gDpHiiHandle, STRING_TOKEN 
(STR_DP_SECTION_GENERAL), NULL);
@@ -766,8 +806,13 @@ ProcessGlobal(
         }
       }
     }
+    if (ShellGetExecutionBreakFlag ()) {
+      Status = EFI_ABORTED;
+      break;
+    }
     Index++;
   }
+  return Status;  //*HP_ISS_EDK2_CONTRIUTION
 }
 
 /** 
diff --git a/ShellPkg/Library/UefiDpLib/UefiDpLib.h 
b/ShellPkg/Library/UefiDpLib/UefiDpLib.h
index d16f55f..3dd9ddf 100644
--- a/ShellPkg/Library/UefiDpLib/UefiDpLib.h
+++ b/ShellPkg/Library/UefiDpLib/UefiDpLib.h
@@ -2,6 +2,7 @@
   Main file for NULL named library for dp command functions.
 
   Copyright (c) 2010 - 2013, Intel Corporation. All rights reserved.<BR>
+  (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD 
License
   which accompanies this distribution.  The full text of the license may be 
found at
@@ -47,6 +48,11 @@ extern        EFI_HANDLE                        gDpHiiHandle;
 
   @param[in] ImageHandle  Handle to the Image (NULL if Internal).
   @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
+
+  @retval SHELL_SUCCESS            Command completed successfully.
+  @retval SHELL_INVALID_PARAMETER  Command usage error.
+  @retval SHELL_ABORTED            The user aborts the operation.
+  @retval value                    Unknown error.
 **/
 SHELL_STATUS
 EFIAPI
-- 
2.7.0.windows.2

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