rt: Remove ptr_vec. Unused

Author: brson

src/rt/rust_internal.h

@@ -152,34 +152,6 @@ template <typename T> struct region_owned {
 
 struct rust_cond { };
 
-// Helper class used regularly elsewhere.
-
-template <typename T> class ptr_vec : public task_owned<ptr_vec<T> > {
-    static const size_t INIT_SIZE = 8;
-    rust_task *task;
-    size_t alloc;
-    size_t fill;
-    T **data;
-public:
-    ptr_vec(rust_task *task);
-    ~ptr_vec();
-
-    size_t length() {
-        return fill;
-    }
-
-    bool is_empty() {
-        return fill == 0;
-    }
-
-    T *& operator[](size_t offset);
-    void push(T *p);
-    T *pop();
-    T *peek();
-    void trim(size_t fill);
-    void swap_delete(T* p);
-};
-
 #include "memory_region.h"
 #include "rust_srv.h"
 #include "rust_log.h"

src/rt/rust_util.h

@@ -4,97 +4,6 @@
 #include "rust_task.h"
 #include <limits.h>
 
-// Utility type: pointer-vector.
-
-template <typename T>
-ptr_vec<T>::ptr_vec(rust_task *task) :
-    task(task),
-    alloc(INIT_SIZE),
-    fill(0),
-    data(new (task, "ptr_vec<T>") T*[alloc])
-{
-    I(task->thread, data);
-    DLOG(task->thread, mem, "new ptr_vec(data=0x%" PRIxPTR ") -> 0x%" PRIxPTR,
-         (uintptr_t)data, (uintptr_t)this);
-}
-
-template <typename T>
-ptr_vec<T>::~ptr_vec()
-{
-    I(task->thread, data);
-    DLOG(task->thread, mem, "~ptr_vec 0x%" PRIxPTR ", data=0x%" PRIxPTR,
-         (uintptr_t)this, (uintptr_t)data);
-    I(task->thread, fill == 0);
-    task->free(data);
-}
-
-template <typename T> T *&
-ptr_vec<T>::operator[](size_t offset) {
-    I(task->thread, data[offset]->idx == offset);
-    return data[offset];
-}
-
-template <typename T>
-void
-ptr_vec<T>::push(T *p)
-{
-    I(task->thread, data);
-    I(task->thread, fill <= alloc);
-    if (fill == alloc) {
-        alloc *= 2;
-        data = (T **)task->realloc(data, alloc * sizeof(T*));
-        I(task->thread, data);
-    }
-    I(task->thread, fill < alloc);
-    p->idx = fill;
-    data[fill++] = p;
-}
-
-template <typename T>
-T *
-ptr_vec<T>::pop()
-{
-    return data[--fill];
-}
-
-template <typename T>
-T *
-ptr_vec<T>::peek()
-{
-    return data[fill - 1];
-}
-
-template <typename T>
-void
-ptr_vec<T>::trim(size_t sz)
-{
-    I(task->thread, data);
-    if (sz <= (alloc / 4) &&
-        (alloc / 2) >= INIT_SIZE) {
-        alloc /= 2;
-        I(task->thread, alloc >= fill);
-        data = (T **)task->realloc(data, alloc * sizeof(T*));
-        I(task->thread, data);
-    }
-}
-
-template <typename T>
-void
-ptr_vec<T>::swap_delete(T *item)
-{
-    /* Swap the endpoint into i and decr fill. */
-    I(task->thread, data);
-    I(task->thread, fill > 0);
-    I(task->thread, item->idx < fill);
-    fill--;
-    if (fill > 0) {
-        T *subst = data[fill];
-        size_t idx = item->idx;
-        data[idx] = subst;
-        subst->idx = idx;
-    }
-}
-
 // Inline fn used regularly elsewhere.
 
 static inline size_t