-typedef unsigned int snapshot_id;
-typedef void (*MyFuncPtr)();
-void initSnapShotLibrary(unsigned int numbackingpages, unsigned int numsnapshots, unsigned int nummemoryregions, unsigned int numheappages, MyFuncPtr entryPoint);
+/* If USE_MPROTECT_SNAPSHOT=1, then snapshot by using mmap() and mprotect()
+ If USE_MPROTECT_SNAPSHOT=0, then snapshot by using fork() */
+#define USE_MPROTECT_SNAPSHOT 1
+
+/* Size of signal stack */
+#define SIGSTACKSIZE 32768