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bug 123728 & bug 123729 heap compaction and resident size trimming

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sr=brendan@mozilla.org, r=blythe@netscape.com
This commit is contained in:
dp%netscape.com 2002-02-09 07:01:11 +00:00
parent 3375f6f6f0
commit 011c38617d
1 changed files with 74 additions and 0 deletions
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74
xpfe/appshell/src/nsXULWindow.cpp
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@ -66,6 +66,11 @@
#include "nsStyleConsts.h"
#if defined(XP_WIN32)
#include <windows.h> // for SetProcessWorkingSetSize()
#include <malloc.h> // for _heapmin()
#endif
#define ABS(x) ((x)<0?-(x):x)
// XXX Get rid of this
@ -330,6 +335,27 @@ NS_IMETHODIMP nsXULWindow::Destroy()
mBeingDestroyed = PR_TRUE;
#if defined(XP_WIN32)
// Heap compact if this the close of a major window
// like composer, mail, browser
PRBool compact = PR_FALSE;
nsCOMPtr<nsIDOMElement> windowElement;
GetWindowDOMElement(getter_AddRefs(windowElement));
if (windowElement)
{
nsAutoString windowType;
nsresult rv = windowElement->GetAttribute(WINDOWTYPE_ATTRIBUTE, windowType);
if (NS_SUCCEEDED(rv) &&
(windowType.Equals(NS_LITERAL_STRING("mail:3pane")) ||
windowType.Equals(NS_LITERAL_STRING("navigator:browser")) ||
windowType.Equals(NS_LITERAL_STRING("composer:html")) ||
windowType.Equals(NS_LITERAL_STRING("msgcompose"))))
{
compact = PR_TRUE;
}
}
#endif
nsCOMPtr<nsIXULWindow> parentWindow(do_QueryReferent(mParentWindow));
if (parentWindow)
parentWindow->RemoveChildWindow(this);
@ -408,6 +434,54 @@ NS_IMETHODIMP nsXULWindow::Destroy()
mWindow = nsnull;
}
#if defined(XP_WIN32)
if (compact)
{
// Heap compaction and shrink working set now
#ifdef DEBUG_dp
PRIntervalTime start = PR_IntervalNow();
int ret =
#endif
_heapmin();
#ifdef DEBUG_dp
printf("DEBUG: HeapCompact() %s - %d ms\n", (!ret ? "success" : "FAILED"),
PR_IntervalToMilliseconds(PR_IntervalNow()-start));
#endif
// shrink working set if we can
// static to figure out address of SetProcessWorkingSetSize()
// This function call is available only on winnt and above.
typedef BOOL WINAPI SetProcessWorkingSetProc(HANDLE hProcess, SIZE_T dwMinimumWorkingSetSize,
SIZE_T dwMaximumWorkingSetSize);
static PRBool firstTime = PR_TRUE;
static SetProcessWorkingSetProc *setProcessWorkingSetSizeP = NULL;
if (firstTime)
{
firstTime = PR_FALSE;
HMODULE kernel = GetModuleHandle("kernel32.dll");
if (kernel)
{
setProcessWorkingSetSizeP = (SetProcessWorkingSetProc *)
GetProcAddress(kernel, "SetProcessWorkingSetSize");
}
}
if (setProcessWorkingSetSizeP)
{
// shrink working set
#ifdef DEBUG_dp
start = PR_IntervalNow();
#endif
(*setProcessWorkingSetSizeP)(GetCurrentProcess(), -1, -1);
#ifdef DEBUG_dp
printf("DEBUG: Honey! I shrunk the resident-set! - %d ms\n",
PR_IntervalToMilliseconds(PR_IntervalNow() - start));
#endif
}
} // compact
#endif
return NS_OK;
}