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UniquePtr: Support SrsUniquePtr to replace SrsAutoFree. v6.0.136 (#4109)

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To manage an object:

```cpp
// Before
MyClass* ptr = new MyClass();
SrsAutoFree(MyClass, ptr);
ptr->do_something();

// Now
SrsUniquePtr<MyClass> ptr(new MyClass());
ptr->do_something();
```

To manage an array of objects:

```cpp
// Before
char* ptr = new char[10];
SrsAutoFreeA(char, ptr);
ptr[0] = 0xf;

// Now
SrsUniquePtr<char[]> ptr(new char[10]);
ptr[0] = 0xf;
```

In fact, SrsUniquePtr is a limited subset of SrsAutoFree, mainly
managing pointers and arrays. SrsUniquePtr is better than SrsAutoFree
because it has the same API to standard unique ptr.

```cpp
SrsUniquePtr<MyClass> ptr(new MyClass());
ptr->do_something();
MyClass* p = ptr.get();
```

SrsAutoFree actually uses a pointer to a pointer, so it can be set to
NULL, allowing the pointer's value to be changed later (this usage is
different from SrsUniquePtr).

```cpp
// OK to free ptr correctly.
MyClass* ptr;
SrsAutoFree(MyClass, ptr);
ptr = new MyClass();

// Crash because ptr is an invalid pointer.
MyClass* ptr;
SrsUniquePtr<MyClass> ptr(ptr);
ptr = new MyClass();
```

Additionally, SrsAutoFreeH can use specific release functions, which
SrsUniquePtr does not support.

---------

Co-authored-by: Jacob Su <suzp1984@gmail.com>
This commit is contained in:
Winlin 2024-07-09 10:29:36 +08:00 • committed by GitHub
parent baf22d01c1
commit 23d2602c34
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14
trunk/scripts/copy_to_gits.sh
View file

@ -14,18 +14,26 @@ if [[ ! -f ~/git/srs-bench/go.mod ]]; then
exit -1
fi
if [[ ! -d ~/git/state-threads ]]; then
echo "no state-threads at ~/git"
exit -1
fi
echo "Copy signaling"
cp -R 3rdparty/signaling/* ~/git/signaling/ &&
cp -R 3rdparty/signaling/.gitignore ~/git/signaling/ &&
(cd ~/git/signaling && git st)
(cd ~/git/signaling && git status)
echo "Copy httpx-static"
cp -R 3rdparty/httpx-static/* ~/git/go-oryx/httpx-static/ &&
cp -R 3rdparty/httpx-static/.gitignore ~/git/go-oryx/httpx-static/ &&
(cd ~/git/go-oryx && git st)
(cd ~/git/go-oryx && git status)
echo "Copy srs-bench"
cp -R 3rdparty/srs-bench/* ~/git/srs-bench/ &&
cp -R 3rdparty/srs-bench/.gitignore ~/git/srs-bench/ &&
(cd ~/git/srs-bench && git st)
(cd ~/git/srs-bench && git status)
echo "Copy state-threads"
cp -R 3rdparty/st-srs/* ~/git/state-threads/ &&
(cd ~/git/state-threads && git st)