bool psi_plist_del(struct psi_plist *list, size_t index, void *ptr);
bool psi_plist_shift(struct psi_plist *list, void *ptr);
bool psi_plist_pop(struct psi_plist *list, void *ptr);
+bool psi_plist_top(struct psi_plist *list, void *ptr);
+#define psi_plist_bottom(l, p) psi_plist_get((l), 0, (p))
#include "Zend/zend.h"
#include "Zend/zend_sort.h"