github_mirrors/vectorscan
3
0
Fork 1
mirror of https://github.com/VectorCamp/vectorscan.git synced 2025-06-28 16:41:01 +03:00
Code Issues Packages Projects Releases Wiki Activity

bytecode_ptr: some small improvements

Browse Source
This commit is contained in:
Justin Viiret 2017-04-03 17:38:26 +10:00 committed by Matthew Barr
parent a197074c5d
commit 67779e0c0a
1 changed files with 11 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/util/bytecode_ptr.h
View File

@ -35,7 +35,9 @@
#define UTIL_BYTECODE_PTR_H #define UTIL_BYTECODE_PTR_H
#include "util/alloc.h" #include "util/alloc.h"
#include "util/operators.h"
#include <algorithm> // std::max
#include <cstring> #include <cstring>
#include <memory> #include <memory>
@ -47,7 +49,7 @@ namespace ue2 {
* This is intended to be used for flat aligned memory regions that will * This is intended to be used for flat aligned memory regions that will
* eventually end up copied into the Hyperscan bytecode. * eventually end up copied into the Hyperscan bytecode.
*/ */
template<typename T> class bytecode_ptr { template<typename T> class bytecode_ptr : totally_ordered<bytecode_ptr<T>> {
public: public:
bytecode_ptr() = default; bytecode_ptr() = default;
explicit bytecode_ptr(size_t size, size_t align = alignof(T)) explicit bytecode_ptr(size_t size, size_t align = alignof(T))
@ -81,7 +83,14 @@ public:
return std::shared_ptr<ST>(ptr.release(), d); return std::shared_ptr<ST>(ptr.release(), d);
} }
void reset(T* p = nullptr) { ptr.reset(p); } void reset(T *p = nullptr) { ptr.reset(p); }
T *release() {
auto *p = ptr.release();
bytes = 0;
alignment = 0;
return p;
}
void swap(bytecode_ptr &other) { void swap(bytecode_ptr &other) {
using std::swap; using std::swap;
@ -97,11 +106,7 @@ public:
size_t align() const { return alignment; } size_t align() const { return alignment; }
bool operator==(const bytecode_ptr &a) const { return ptr == a.ptr; } bool operator==(const bytecode_ptr &a) const { return ptr == a.ptr; }
bool operator!=(const bytecode_ptr &a) const { return ptr != a.ptr; }
bool operator<(const bytecode_ptr &a) const { return ptr < a.ptr; } bool operator<(const bytecode_ptr &a) const { return ptr < a.ptr; }
bool operator<=(const bytecode_ptr &a) const { return ptr <= a.ptr; }
bool operator>(const bytecode_ptr &a) const { return ptr > a.ptr; }
bool operator>=(const bytecode_ptr &a) const { return ptr >= a.ptr; }
private: private:
/** \brief Deleter function for std::unique_ptr. */ /** \brief Deleter function for std::unique_ptr. */