upload android base code part6

android/system/extras/tests/pagingtest/pagingtest.h

@@ -0,0 +1,20 @@
+#include <unistd.h>
+#include <stdbool.h>
+
+#ifndef __PAGINGTEST_H__
+#define __PAGINGTEST_H__
+#define USEC_PER_SEC 1000000ULL
+#define mincore_vec_len(size) (((size) + sysconf(_SC_PAGE_SIZE) - 1) / sysconf(_SC_PAGE_SIZE))
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
+
+//Helpers
+int create_tmp_file(char *filename, off_t size);
+unsigned char *alloc_mincore_vec(size_t size);
+bool check_caching(void *buf, unsigned char *vec, size_t size, bool is_cached);
+
+//Tests
+int mmap_test(int test_runs, unsigned long long alloc_size);
+int pageinout_test(int test_runs, bool cache, unsigned long long file_size);
+int thrashing_test(int test_runs, bool cache);
+
+#endif //__PAGINGTEST_H__