add SetProcessWorkingSetSize to wine

--- wine-1.5.20/dlls/kernel32/process.c.orig	2012-12-21 14:14:41.000000000 -0500
+++ wine-1.5.20/dlls/kernel32/process.c	2012-12-29 17:20:33.052096000 -0500
@@ -47,6 +47,10 @@
 #ifdef HAVE_UNISTD_H
 # include <unistd.h>
 #endif
+#include <sys/resource.h>
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
 #ifdef __APPLE__
 #include <CoreFoundation/CoreFoundation.h>
 #include <pthread.h>
@@ -3273,11 +3277,61 @@
 BOOL WINAPI SetProcessWorkingSetSize(HANDLE hProcess, SIZE_T minset,
                                      SIZE_T maxset)
 {
-    WARN("(%p,%ld,%ld): stub - harmless\n",hProcess,minset,maxset);
+    struct rlimit limits;
+
+    if (hProcess != GetCurrentProcess()) {
+        FIXME("Cannot get info for another process");
+        SetLastError(ERROR_INVALID_PARAMETER);
+        return FALSE;
+    }
+
+    TRACE("(%p,%ld,%ld)\n",hProcess,minset,maxset);
+
     if(( minset == (SIZE_T)-1) && (maxset == (SIZE_T)-1)) {
-        /* Trim the working set to zero */
-        /* Swap the process out of physical RAM */
+#ifdef HAVE_SYS_MMAN
+        if (munlockall() == -1) {
+            switch(errno) {
+                case ENOSYS:
+                    SetLastError(ERROR_INVALID_FUNCTION);
+                    break;
+                default:
+                    FIXME("Converting munlockall errno %d to ERROR_GEN_FAILURE\n", errno);
+                    SetLastError(ERROR_GEN_FAILURE);
+                    break;
+            }
+            return FALSE;
+        }
+
+        limits.rlim_cur = 0;
+        limits.rlim_max = 0;
+#else
+        FIXME("(%p,%ld,%ld): stub\n",hProcess,minset,maxset);
+        SetLastError(ERROR_INVALID_PARAMETER);
+        return FALSE;
+#endif
+    }
+    else {
+        limits.rlim_cur = maxset;
+        limits.rlim_max = maxset;
+    }
+
+    if (setrlimit(RLIMIT_MEMLOCK, &limits) == -1) {
+        switch(errno) {
+            case EINVAL:
+                SetLastError(ERROR_INVALID_PARAMETER);
+                break;
+            case EPERM:
+                SetLastError(ERROR_ACCESS_DENIED);
+                break;
+            default:
+                FIXME("Converting errno %d to ERROR_GEN_FAILURE\n", errno);
+                SetLastError(ERROR_GEN_FAILURE);
+                break;
+        }
+
+        return FALSE;
     }
+
     return TRUE;
 }

@@ -3295,10 +3349,45 @@
 BOOL WINAPI GetProcessWorkingSetSize(HANDLE hProcess, PSIZE_T minset,
                                      PSIZE_T maxset)
 {
-    FIXME("(%p,%p,%p): stub\n",hProcess,minset,maxset);
-    /* 32 MB working set size */
-    if (minset) *minset = 32*1024*1024;
-    if (maxset) *maxset = 32*1024*1024;
+    struct rlimit limits;
+
+    if (hProcess != GetCurrentProcess()) {
+        FIXME("Cannot get info for another process");
+        SetLastError(ERROR_INVALID_PARAMETER);
+        return FALSE;
+    }
+
+    TRACE("(%p,%p,%p)\n",hProcess,minset,maxset);
+
+    /* 32 MB minimum working set size - no rlimit for this */
+    if (minset)
+        *minset = 32*1024*1024;
+
+    if (maxset) {
+        if (getrlimit(RLIMIT_MEMLOCK, &limits) == -1) {
+            switch(errno) {
+                case EINVAL:
+                    SetLastError(ERROR_INVALID_PARAMETER);
+                    break;
+                case EPERM:
+                    SetLastError(ERROR_ACCESS_DENIED);
+                    break;
+                default:
+                    FIXME("Converting errno %d to ERROR_GEN_FAILURE\n", errno);
+                    SetLastError(ERROR_GEN_FAILURE);
+                    break;
+            }
+
+            return FALSE;
+        }
+
+        if (limits.rlim_max == RLIM_INFINITY)
+            *maxset = MAXUINT_PTR;
+        else
+            *maxset = limits.rlim_max;
+    }
+
+
     return TRUE;
 }