Rename ke_* headers to am-*
--HG-- rename : public/amtl/ke_allocator_policies.h => public/amtl/am-allocator-policies.h rename : public/amtl/ke_inline_list.h => public/amtl/am-inline-list.h rename : public/amtl/ke_thread_posix.h => public/amtl/am-thread-posix.h rename : public/amtl/ke_thread_utils.h => public/amtl/am-thread-utils.h rename : public/amtl/ke_thread_windows.h => public/amtl/am-thread-windows.h rename : public/amtl/ke_utility.h => public/amtl/am-utility.h rename : public/amtl/ke_vector.h => public/amtl/am-vector.h
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/* vim: set ts=2 sw=2 tw=99 et:
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*
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* Copyright (C) 2012 David Anderson
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*
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* This file is part of SourcePawn.
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*
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* SourcePawn is free software: you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option)
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* any later version.
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*
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* SourcePawn is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* SourcePawn. If not, see http://www.gnu.org/licenses/.
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*/
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#ifndef _INCLUDE_KEIMA_TPL_CPP_VECTOR_H_
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#define _INCLUDE_KEIMA_TPL_CPP_VECTOR_H_
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#include <new>
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#include <stdlib.h>
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#include <am-allocator-policies.h>
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#include <am-utility.h>
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namespace ke {
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template <typename T, typename AllocPolicy = SystemAllocatorPolicy>
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class Vector : public AllocPolicy
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{
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public:
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Vector(AllocPolicy = AllocPolicy())
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: data(NULL),
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nitems(0),
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maxsize(0)
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{
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}
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~Vector()
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{
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zap();
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}
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void steal(Vector &other) {
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zap();
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data = other.data;
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nitems = other.nitems;
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maxsize = other.maxsize;
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other.reset();
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}
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bool append(const T& item) {
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if (!growIfNeeded(1))
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return false;
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new (&data[nitems]) T(item);
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nitems++;
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return true;
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}
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void infallibleAppend(const T &item) {
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assert(growIfNeeded(1));
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new (&data[nitems]) T(item);
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nitems++;
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}
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T popCopy() {
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T t = at(length() - 1);
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pop();
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return t;
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}
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void pop() {
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assert(nitems);
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data[nitems - 1].~T();
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nitems--;
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}
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bool empty() const {
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return length() == 0;
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}
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size_t length() const {
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return nitems;
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}
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T& at(size_t i) {
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assert(i < length());
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return data[i];
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}
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const T& at(size_t i) const {
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assert(i < length());
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return data[i];
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}
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T& operator [](size_t i) {
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return at(i);
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}
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const T& operator [](size_t i) const {
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return at(i);
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}
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void clear() {
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nitems = 0;
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}
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const T &back() const {
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return at(length() - 1);
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}
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T &back() {
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return at(length() - 1);
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}
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T *buffer() const {
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return data;
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}
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bool ensure(size_t desired) {
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if (desired <= length())
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return true;
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return growIfNeeded(desired - length());
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}
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private:
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void zap() {
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for (size_t i = 0; i < nitems; i++)
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data[i].~T();
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this->free(data);
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}
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void reset() {
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data = NULL;
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nitems = 0;
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maxsize = 0;
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}
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bool growIfNeeded(size_t needed)
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{
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if (!IsUintPtrAddSafe(nitems, needed)) {
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this->reportAllocationOverflow();
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return false;
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}
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if (nitems + needed < maxsize)
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return true;
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if (maxsize == 0)
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maxsize = 8;
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while (nitems + needed > maxsize) {
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if (!IsUintPtrMultiplySafe(maxsize, 2)) {
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this->reportAllocationOverflow();
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return false;
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}
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maxsize *= 2;
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}
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T* newdata = (T*)this->malloc(sizeof(T) * maxsize);
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if (newdata == NULL)
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return false;
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for (size_t i = 0; i < nitems; i++) {
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new (&newdata[i]) T(data[i]);
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data[i].~T();
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}
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this->free(data);
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data = newdata;
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return true;
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}
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private:
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T* data;
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size_t nitems;
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size_t maxsize;
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};
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}
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#endif /* _INCLUDE_KEIMA_TPL_CPP_VECTOR_H_ */
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