imp get_max_process_data_size on windows. addresses #1387

git-svn-id: file:///svn/toku/tokudb@8748 c7de825b-a66e-492c-adef-691d508d4ae1

windows/tests/test-max-data.c

+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <assert.h>
+#include <toku_portability.h>
+#include <toku_os.h>
+
+int main(void) {
+    uint64_t maxdata;
+    int r = toku_os_get_max_process_data_size(&maxdata);
+    assert(r == 0);
+    printf("maxdata=%"PRIu64"\n", maxdata);
+    return 0;
+}

windows/tests/test-rss.c

@@ -4,6 +4,7 @@
 #include <string.h>
 #include <stdint.h>
 #include <inttypes.h>
+#include <toku_portability.h>
 #include <toku_os.h>
 
 static void do_mallocs(void) {

windows/windows.c

@@ -135,6 +135,22 @@ toku_os_gettid(void) {
     return GetCurrentThreadId();
 }
 
+int 
+toku_os_get_max_process_data_size(uint64_t *maxdata) {
+#ifdef _WIN32
+    // the process gets 1/2 of the 32 bit address space
+    *maxdata = 1ULL << 31;
+    return 0;
+#else
+#ifdef _WIN64
+    *maxdata = ~0ULL;
+    return 0;
+#else
+    return EINVAL;
+#endif
+#endif
+}
+
 int
 toku_os_lock_file(char *name) {
     int fd = _sopen(name, O_CREAT, _SH_DENYRW, S_IREAD|S_IWRITE);