diff options
Diffstat (limited to 'xpcom/glue/nsThreadUtils.cpp')
| -rw-r--r-- | xpcom/glue/nsThreadUtils.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/xpcom/glue/nsThreadUtils.cpp b/xpcom/glue/nsThreadUtils.cpp index 8743c0d5fb..b6a37a7b83 100644 --- a/xpcom/glue/nsThreadUtils.cpp +++ b/xpcom/glue/nsThreadUtils.cpp @@ -19,6 +19,8 @@ #ifdef XP_WIN #include <windows.h> +#elif defined(XP_MACOSX) +#include <sys/resource.h> #endif using namespace mozilla; @@ -437,6 +439,12 @@ nsAutoLowPriorityIO::nsAutoLowPriorityIO() #if defined(XP_WIN) lowIOPrioritySet = SetThreadPriority(GetCurrentThread(), THREAD_MODE_BACKGROUND_BEGIN); +#elif defined(XP_MACOSX) + oldPriority = getiopolicy_np(IOPOL_TYPE_DISK, IOPOL_SCOPE_THREAD); + lowIOPrioritySet = oldPriority != -1 && + setiopolicy_np(IOPOL_TYPE_DISK, + IOPOL_SCOPE_THREAD, + IOPOL_THROTTLE) != -1; #else lowIOPrioritySet = false; #endif @@ -449,5 +457,9 @@ nsAutoLowPriorityIO::~nsAutoLowPriorityIO() // On Windows the old thread priority is automatically restored SetThreadPriority(GetCurrentThread(), THREAD_MODE_BACKGROUND_END); } +#elif defined(XP_MACOSX) + if (MOZ_LIKELY(lowIOPrioritySet)) { + setiopolicy_np(IOPOL_TYPE_DISK, IOPOL_SCOPE_THREAD, oldPriority); + } #endif } |