Add r-value constructor for RefCountedObject.

Previously RefCountedObject was passing all parameters by value.
This meant that it was hard to use it with movable types, such
as unique_ptr<>. Now there is a constructor that takes r-value,
which means that RefCountedObject<std::unique_ptr<foo>> can be
initialized by passing std::unique_ptr<foo> to the constructor.

Review-Url: https://codereview.webrtc.org/2036123002
Cr-Commit-Position: refs/heads/master@{#13079}
This commit is contained in:
sergeyu 2016-06-08 15:52:21 -07:00 committed by Commit bot
parent d5f41ce898
commit f2a1c89241
2 changed files with 107 additions and 58 deletions

View File

@ -12,6 +12,7 @@
#define WEBRTC_BASE_REFCOUNT_H_
#include <string.h>
#include <utility>
#include "webrtc/base/atomicops.h"
@ -22,6 +23,7 @@ class RefCountInterface {
public:
virtual int AddRef() const = 0;
virtual int Release() const = 0;
protected:
virtual ~RefCountInterface() {}
};
@ -29,75 +31,123 @@ class RefCountInterface {
template <class T>
class RefCountedObject : public T {
public:
RefCountedObject() : ref_count_(0) {
}
RefCountedObject() {}
template<typename P>
explicit RefCountedObject(P p) : T(p), ref_count_(0) {
}
template <typename P>
explicit RefCountedObject(const P& p) : T(p) {}
template<typename P1, typename P2>
RefCountedObject(P1 p1, P2 p2) : T(p1, p2), ref_count_(0) {
}
template <typename P>
explicit RefCountedObject(P&& p) : T(std::move(p)) {}
template<typename P1, typename P2, typename P3>
RefCountedObject(P1 p1, P2 p2, P3 p3) : T(p1, p2, p3), ref_count_(0) {
}
template <typename P1, typename P2>
RefCountedObject(P1 p1, P2 p2) : T(p1, p2) {}
template<typename P1, typename P2, typename P3, typename P4>
RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4)
: T(p1, p2, p3, p4), ref_count_(0) {
}
template <typename P1, typename P2, typename P3>
RefCountedObject(P1 p1, P2 p2, P3 p3) : T(p1, p2, p3) {}
template<typename P1, typename P2, typename P3, typename P4, typename P5>
RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5)
: T(p1, p2, p3, p4, p5), ref_count_(0) {
}
template <typename P1, typename P2, typename P3, typename P4>
RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4) : T(p1, p2, p3, p4) {}
template<typename P1, typename P2, typename P3, typename P4, typename P5,
typename P6>
template <typename P1, typename P2, typename P3, typename P4, typename P5>
RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5) : T(p1, p2, p3, p4, p5) {}
template <typename P1,
typename P2,
typename P3,
typename P4,
typename P5,
typename P6>
RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6)
: T(p1, p2, p3, p4, p5, p6), ref_count_(0) {
}
: T(p1, p2, p3, p4, p5, p6) {}
template<typename P1, typename P2, typename P3, typename P4, typename P5,
typename P6, typename P7>
template <typename P1,
typename P2,
typename P3,
typename P4,
typename P5,
typename P6,
typename P7>
RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7)
: T(p1, p2, p3, p4, p5, p6, p7), ref_count_(0) {
}
: T(p1, p2, p3, p4, p5, p6, p7) {}
template<typename P1, typename P2, typename P3, typename P4, typename P5,
typename P6, typename P7, typename P8>
template <typename P1,
typename P2,
typename P3,
typename P4,
typename P5,
typename P6,
typename P7,
typename P8>
RefCountedObject(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8)
: T(p1, p2, p3, p4, p5, p6, p7, p8), ref_count_(0) {
}
: T(p1, p2, p3, p4, p5, p6, p7, p8) {}
template<typename P1, typename P2, typename P3, typename P4, typename P5,
typename P6, typename P7, typename P8, typename P9>
RefCountedObject(
P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8, P9 p9)
: T(p1, p2, p3, p4, p5, p6, p7, p8, p9), ref_count_(0) {
}
template <typename P1,
typename P2,
typename P3,
typename P4,
typename P5,
typename P6,
typename P7,
typename P8,
typename P9>
RefCountedObject(P1 p1,
P2 p2,
P3 p3,
P4 p4,
P5 p5,
P6 p6,
P7 p7,
P8 p8,
P9 p9)
: T(p1, p2, p3, p4, p5, p6, p7, p8, p9) {}
template<typename P1, typename P2, typename P3, typename P4, typename P5,
typename P6, typename P7, typename P8, typename P9, typename P10>
RefCountedObject(
P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8, P9 p9, P10 p10)
: T(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10), ref_count_(0) {
}
template <typename P1,
typename P2,
typename P3,
typename P4,
typename P5,
typename P6,
typename P7,
typename P8,
typename P9,
typename P10>
RefCountedObject(P1 p1,
P2 p2,
P3 p3,
P4 p4,
P5 p5,
P6 p6,
P7 p7,
P8 p8,
P9 p9,
P10 p10)
: T(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10) {}
template<typename P1, typename P2, typename P3, typename P4, typename P5,
typename P6, typename P7, typename P8, typename P9, typename P10,
typename P11>
RefCountedObject(
P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8, P9 p9, P10 p10,
P11 p11)
: T(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11), ref_count_(0) {
}
template <typename P1,
typename P2,
typename P3,
typename P4,
typename P5,
typename P6,
typename P7,
typename P8,
typename P9,
typename P10,
typename P11>
RefCountedObject(P1 p1,
P2 p2,
P3 p3,
P4 p4,
P5 p5,
P6 p6,
P7 p7,
P8 p8,
P9 p9,
P10 p10,
P11 p11)
: T(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11) {}
virtual int AddRef() const {
return AtomicOps::Increment(&ref_count_);
}
virtual int AddRef() const { return AtomicOps::Increment(&ref_count_); }
virtual int Release() const {
int count = AtomicOps::Decrement(&ref_count_);
@ -118,10 +168,9 @@ class RefCountedObject : public T {
}
protected:
virtual ~RefCountedObject() {
}
virtual ~RefCountedObject() {}
mutable volatile int ref_count_;
mutable volatile int ref_count_ = 0;
};
} // namespace rtc

View File

@ -23,7 +23,7 @@ SharedDesktopFrame::~SharedDesktopFrame() {}
std::unique_ptr<SharedDesktopFrame> SharedDesktopFrame::Wrap(
std::unique_ptr<DesktopFrame> desktop_frame) {
return std::unique_ptr<SharedDesktopFrame>(
new SharedDesktopFrame(new Core(desktop_frame.release())));
new SharedDesktopFrame(new Core(std::move(desktop_frame))));
}
SharedDesktopFrame* SharedDesktopFrame::Wrap(DesktopFrame* desktop_frame) {