Add msbuild low CPU priority option for polite compiling. (#7828)

1 files changed, 10 insertions, 3 deletions

diff --git a/build_win.bat b/build_win.bat
index 1a735d7cd..de5030ee5 100644
--- a/build_win.bat
+++ b/build_win.bat
@@ -10,6 +10,7 @@
 @ECHO                  [-PRODUCT ^<product^>] [-DESTDIR ^<directory^>]

 @ECHO                  [-STEPS ^<all^|all-dirty^|app^|app-dirty^|deps^|deps-dirty^>]

 @ECHO                  [-RUN ^<console^|custom^|none^|viewer^|window^>]

+@ECHO                  [-PRIORITY ^<normal^|low^>]

 @ECHO.

 @ECHO  -a -ARCH      Target processor architecture

 @ECHO                Default: %PS_ARCH_HOST%

@@ -38,6 +39,8 @@
 @ECHO  -d -DESTDIR   Deps destination directory

 @ECHO                Warning: Changing destdir path will not delete the old destdir.

 @ECHO                Default: %PS_DESTDIR_DEFAULT_MSG%

+@ECHO  -p -PRIORITY  Build CPU priority

+@ECHO                Default: normal

 @ECHO.

 @ECHO  Examples:

 @ECHO.

@@ -86,6 +89,7 @@ SET PS_RUN=none
 SET PS_DESTDIR=

 SET PS_VERSION=

 SET PS_PRODUCT=%PS_PRODUCT_DEFAULT%

+SET PS_PRIORITY=normal

 CALL :RESOLVE_DESTDIR_CACHE

 

 REM Set up parameters used by help menu

@@ -99,7 +103,7 @@ SET EXIT_STATUS=1
 SET PS_CURRENT_STEP=arguments

 SET PARSER_STATE=

 SET PARSER_FAIL=

-FOR %%I in (%*) DO CALL :PARSE_OPTION "ARCH CONFIG DESTDIR STEPS RUN VERSION PRODUCT" PARSER_STATE "%%~I"

+FOR %%I in (%*) DO CALL :PARSE_OPTION "ARCH CONFIG DESTDIR STEPS RUN VERSION PRODUCT PRIORITY" PARSER_STATE "%%~I"

 IF "%PARSER_FAIL%" NEQ "" (

     @ECHO ERROR: Invalid switch: %PARSER_FAIL% 1>&2

     GOTO :HELP

@@ -114,6 +118,9 @@ CALL :TOLOWER PS_ARCH
 SET PS_ARCH=%PS_ARCH:amd64=x64%

 CALL :PARSE_OPTION_VALUE %PS_CONFIG_LIST:;= % PS_CONFIG

 IF "%PS_CONFIG%" EQU "" GOTO :HELP

+CALL :PARSE_OPTION_VALUE "normal low" PS_PRIORITY

+SET PS_PRIORITY=%PS_PRIORITY:normal= %

+SET PS_PRIORITY=%PS_PRIORITY:low=-low% 

 REM RESOLVE_DESTDIR_CACHE must go after PS_ARCH and PS_CONFIG, but before PS STEPS

 CALL :RESOLVE_DESTDIR_CACHE

 IF "%PS_STEPS%" EQU "" SET PS_STEPS=%PS_STEPS_DEFAULT%

@@ -200,7 +207,7 @@ IF %ERRORLEVEL% NEQ 0 IF "%PS_STEPS_DIRTY%" NEQ "" (
     (del CMakeCache.txt && cmake.exe .. -DDESTDIR="%PS_DESTDIR%") || GOTO :END

 ) ELSE GOTO :END

 (echo %PS_DESTDIR%)> "%PS_DEPS_PATH_FILE%"

-msbuild /m ALL_BUILD.vcxproj /p:Configuration=%PS_CONFIG%  /v:quiet || GOTO :END

+msbuild /m ALL_BUILD.vcxproj /p:Configuration=%PS_CONFIG% /v:quiet %PS_PRIORITY% || GOTO :END

 cd ..\..

 IF /I "%PS_STEPS:~0,4%" EQU "deps" GOTO :RUN_APP

 

@@ -223,7 +230,7 @@ IF %ERRORLEVEL% NEQ 0 IF "%PS_STEPS_DIRTY%" NEQ "" (
     (del CMakeCache.txt && cmake.exe .. -DCMAKE_PREFIX_PATH="%PS_DESTDIR%\usr\local" -DCMAKE_CONFIGURATION_TYPES=%PS_CONFIG_LIST%) || GOTO :END

 ) ELSE GOTO :END

 REM Skip the build step if we're using the undocumented app-cmake to regenerate the full config from inside devenv

-IF "%PS_STEPS%" NEQ "app-cmake" msbuild /m ALL_BUILD.vcxproj /p:Configuration=%PS_CONFIG% /v:quiet || GOTO :END

+IF "%PS_STEPS%" NEQ "app-cmake" msbuild /m ALL_BUILD.vcxproj /p:Configuration=%PS_CONFIG% /v:quiet %PS_PRIORITY% || GOTO :END

 (echo %PS_DESTDIR%)> "%PS_DEPS_PATH_FILE_FOR_CONFIG%"

 

 REM Run app