Remove makeArray import
This commit is contained in:
parent
b90c56395c
commit
85380ac3fc
@ -15,53 +15,53 @@ module tanya.memory.allocator;
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*/
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interface Allocator
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{
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/**
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* Returns: Alignment offered.
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*/
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@property uint alignment() const shared pure nothrow @safe @nogc;
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/**
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* Returns: Alignment offered.
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*/
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@property uint alignment() const shared pure nothrow @safe @nogc;
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/**
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* Allocates $(D_PARAM size) bytes of memory.
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*
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* Params:
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* size = Amount of memory to allocate.
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*
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* Returns: Pointer to the new allocated memory.
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*/
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void[] allocate(in size_t size) shared nothrow @nogc;
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/**
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* Allocates $(D_PARAM size) bytes of memory.
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*
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* Params:
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* size = Amount of memory to allocate.
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*
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* Returns: Pointer to the new allocated memory.
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*/
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void[] allocate(in size_t size) shared nothrow @nogc;
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/**
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* Deallocates a memory block.
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*
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* Params:
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* p = A pointer to the memory block to be freed.
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*
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* Returns: Whether the deallocation was successful.
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*/
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bool deallocate(void[] p) shared nothrow @nogc;
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/**
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* Deallocates a memory block.
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*
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* Params:
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* p = A pointer to the memory block to be freed.
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*
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* Returns: Whether the deallocation was successful.
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*/
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bool deallocate(void[] p) shared nothrow @nogc;
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/**
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* Increases or decreases the size of a memory block.
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*
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* Params:
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* p = A pointer to the memory block.
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* size = Size of the reallocated block.
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*
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* Returns: Pointer to the allocated memory.
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*/
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bool reallocate(ref void[] p, in size_t size) shared nothrow @nogc;
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/**
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* Increases or decreases the size of a memory block.
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*
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* Params:
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* p = A pointer to the memory block.
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* size = Size of the reallocated block.
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*
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* Returns: Pointer to the allocated memory.
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*/
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bool reallocate(ref void[] p, in size_t size) shared nothrow @nogc;
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/**
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* Reallocates a memory block in place if possible or returns
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* $(D_KEYWORD false). This function cannot be used to allocate or
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* deallocate memory, so if $(D_PARAM p) is $(D_KEYWORD null) or
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* $(D_PARAM size) is `0`, it should return $(D_KEYWORD false).
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*
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* Params:
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* p = A pointer to the memory block.
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* size = Size of the reallocated block.
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*
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* Returns: $(D_KEYWORD true) if successful, $(D_KEYWORD false) otherwise.
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*/
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bool reallocateInPlace(ref void[] p, in size_t size) shared nothrow @nogc;
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/**
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* Reallocates a memory block in place if possible or returns
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* $(D_KEYWORD false). This function cannot be used to allocate or
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* deallocate memory, so if $(D_PARAM p) is $(D_KEYWORD null) or
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* $(D_PARAM size) is `0`, it should return $(D_KEYWORD false).
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*
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* Params:
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* p = A pointer to the memory block.
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* size = Size of the reallocated block.
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*
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* Returns: $(D_KEYWORD true) if successful, $(D_KEYWORD false) otherwise.
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*/
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bool reallocateInPlace(ref void[] p, in size_t size) shared nothrow @nogc;
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}
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@ -11,7 +11,7 @@
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module tanya.memory;
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import core.exception;
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public import std.experimental.allocator : make, makeArray;
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public import std.experimental.allocator : make;
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import std.traits;
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public import tanya.memory.allocator;
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@ -3,10 +3,10 @@
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* Copyright: Eugene Wissner 2016.
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* Copyright: Eugene Wissner 2016-2017.
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* License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
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* Mozilla Public License, v. 2.0).
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* Authors: $(LINK2 mailto:belka@caraus.de, Eugene Wissner)
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* Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
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*/
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module tanya.memory.types;
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@ -23,345 +23,345 @@ import tanya.memory;
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* when the reference count goes down to zero, frees the underlying store.
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*
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* Params:
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* T = Type of the reference-counted value.
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* T = Type of the reference-counted value.
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*/
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struct RefCounted(T)
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{
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static if (is(T == class) || is(T == interface))
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{
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private alias Payload = T;
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}
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else
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{
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private alias Payload = T*;
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}
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static if (is(T == class) || is(T == interface))
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{
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private alias Payload = T;
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}
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else
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{
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private alias Payload = T*;
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}
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private class Storage
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{
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private Payload payload;
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private size_t counter = 1;
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private class Storage
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{
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private Payload payload;
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private size_t counter = 1;
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private final size_t opUnary(string op)() pure nothrow @safe @nogc
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if (op == "--" || op == "++")
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in
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{
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assert(counter > 0);
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}
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body
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{
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mixin("return " ~ op ~ "counter;");
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}
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private final size_t opUnary(string op)() pure nothrow @safe @nogc
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if (op == "--" || op == "++")
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in
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{
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assert(counter > 0);
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}
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body
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{
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mixin("return " ~ op ~ "counter;");
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}
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private final int opCmp(size_t counter) const pure nothrow @safe @nogc
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{
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if (this.counter > counter)
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{
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return 1;
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}
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else if (this.counter < counter)
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{
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return -1;
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}
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else
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{
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return 0;
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}
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}
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private final int opCmp(size_t counter) const pure nothrow @safe @nogc
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{
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if (this.counter > counter)
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{
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return 1;
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}
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else if (this.counter < counter)
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{
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return -1;
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}
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else
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{
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return 0;
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}
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}
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private final int opEquals(size_t counter) const pure nothrow @safe @nogc
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{
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return this.counter == counter;
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}
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}
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private final int opEquals(size_t counter) const pure nothrow @safe @nogc
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{
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return this.counter == counter;
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}
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}
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private final class RefCountedStorage : Storage
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{
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private shared Allocator allocator;
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private final class RefCountedStorage : Storage
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{
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private shared Allocator allocator;
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this(shared Allocator allocator) pure nothrow @safe @nogc
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in
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{
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assert(allocator !is null);
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}
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body
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{
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this.allocator = allocator;
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}
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this(shared Allocator allocator) pure nothrow @safe @nogc
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in
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{
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assert(allocator !is null);
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}
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body
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{
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this.allocator = allocator;
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}
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~this() nothrow @nogc
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{
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allocator.dispose(payload);
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}
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}
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~this() nothrow @nogc
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{
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allocator.dispose(payload);
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}
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}
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private Storage storage;
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private Storage storage;
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invariant
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{
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assert(storage is null || allocator_ !is null);
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}
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invariant
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{
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assert(storage is null || allocator_ !is null);
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}
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/**
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* Takes ownership over $(D_PARAM value), setting the counter to 1.
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* $(D_PARAM value) may be a pointer, an object or a dynamic array.
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*
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* Params:
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* value = Value whose ownership is taken over.
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* allocator = Allocator used to destroy the $(D_PARAM value) and to
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* allocate/deallocate internal storage.
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*
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* Precondition: $(D_INLINECODE allocator !is null)
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*/
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this(Payload value, shared Allocator allocator = defaultAllocator)
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{
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this(allocator);
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storage = allocator.make!RefCountedStorage(allocator);
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move(value, storage.payload);
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}
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/**
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* Takes ownership over $(D_PARAM value), setting the counter to 1.
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* $(D_PARAM value) may be a pointer, an object or a dynamic array.
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*
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* Params:
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* value = Value whose ownership is taken over.
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* allocator = Allocator used to destroy the $(D_PARAM value) and to
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* allocate/deallocate internal storage.
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*
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* Precondition: $(D_INLINECODE allocator !is null)
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*/
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this(Payload value, shared Allocator allocator = defaultAllocator)
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{
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this(allocator);
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storage = allocator.make!RefCountedStorage(allocator);
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move(value, storage.payload);
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}
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/// Ditto.
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this(shared Allocator allocator)
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in
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{
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assert(allocator !is null);
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}
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body
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{
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this.allocator_ = allocator;
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}
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/// Ditto.
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this(shared Allocator allocator)
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in
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{
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assert(allocator !is null);
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}
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body
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{
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this.allocator_ = allocator;
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}
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/**
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* Increases the reference counter by one.
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*/
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this(this)
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{
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if (count != 0)
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{
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++storage;
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}
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}
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/**
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* Increases the reference counter by one.
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*/
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this(this)
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{
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if (count != 0)
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{
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++storage;
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}
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}
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/**
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* Decreases the reference counter by one.
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*
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* If the counter reaches 0, destroys the owned object.
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*/
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~this()
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{
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if (storage !is null && !(storage.counter && --storage))
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{
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allocator_.dispose(storage);
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}
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}
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/**
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* Decreases the reference counter by one.
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*
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* If the counter reaches 0, destroys the owned object.
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*/
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~this()
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{
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if (storage !is null && !(storage.counter && --storage))
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{
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allocator_.dispose(storage);
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}
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}
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/**
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* Takes ownership over $(D_PARAM rhs). Initializes this
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* $(D_PSYMBOL RefCounted) if needed.
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*
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* If it is the last reference of the previously owned object,
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* it will be destroyed.
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*
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* To reset the $(D_PSYMBOL RefCounted) assign $(D_KEYWORD null).
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*
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* If the allocator wasn't set before, $(D_PSYMBOL defaultAllocator) will
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* be used. If you need a different allocator, create a new
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* $(D_PSYMBOL RefCounted) and assign it.
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*
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* Params:
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* rhs = $(D_KEYWORD this).
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*/
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ref typeof(this) opAssign(Payload rhs)
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{
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if (storage is null)
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{
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storage = allocator.make!RefCountedStorage(allocator);
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}
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else if (storage > 1)
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{
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--storage;
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storage = allocator.make!RefCountedStorage(allocator);
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}
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else if (cast(RefCountedStorage) storage is null)
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{
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// Created with refCounted. Always destroyed togethter with the pointer.
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assert(storage.counter != 0);
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allocator.dispose(storage);
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storage = allocator.make!RefCountedStorage(allocator);
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}
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else
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{
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allocator.dispose(storage.payload);
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}
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move(rhs, storage.payload);
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return this;
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}
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/**
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* Takes ownership over $(D_PARAM rhs). Initializes this
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* $(D_PSYMBOL RefCounted) if needed.
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*
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* If it is the last reference of the previously owned object,
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* it will be destroyed.
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*
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* To reset the $(D_PSYMBOL RefCounted) assign $(D_KEYWORD null).
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*
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* If the allocator wasn't set before, $(D_PSYMBOL defaultAllocator) will
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* be used. If you need a different allocator, create a new
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* $(D_PSYMBOL RefCounted) and assign it.
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*
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* Params:
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* rhs = $(D_KEYWORD this).
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*/
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ref typeof(this) opAssign(Payload rhs)
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{
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if (storage is null)
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{
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storage = allocator.make!RefCountedStorage(allocator);
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}
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else if (storage > 1)
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{
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--storage;
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storage = allocator.make!RefCountedStorage(allocator);
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}
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else if (cast(RefCountedStorage) storage is null)
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{
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// Created with refCounted. Always destroyed togethter with the pointer.
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assert(storage.counter != 0);
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allocator.dispose(storage);
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storage = allocator.make!RefCountedStorage(allocator);
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}
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else
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{
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allocator.dispose(storage.payload);
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}
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move(rhs, storage.payload);
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return this;
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}
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/// Ditto.
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ref typeof(this) opAssign(typeof(null))
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{
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if (storage is null)
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{
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return this;
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}
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else if (storage > 1)
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{
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--storage;
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storage = null;
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}
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else if (cast(RefCountedStorage) storage is null)
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{
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// Created with refCounted. Always destroyed togethter with the pointer.
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assert(storage.counter != 0);
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allocator.dispose(storage);
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return this;
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}
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else
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{
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allocator.dispose(storage.payload);
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}
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return this;
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}
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/// Ditto.
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ref typeof(this) opAssign(typeof(null))
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{
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if (storage is null)
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{
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return this;
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}
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else if (storage > 1)
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{
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--storage;
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storage = null;
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}
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else if (cast(RefCountedStorage) storage is null)
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{
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// Created with refCounted. Always destroyed togethter with the pointer.
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assert(storage.counter != 0);
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allocator.dispose(storage);
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return this;
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}
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else
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{
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allocator.dispose(storage.payload);
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}
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return this;
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}
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/// Ditto.
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ref typeof(this) opAssign(typeof(this) rhs)
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{
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swap(allocator_, rhs.allocator_);
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swap(storage, rhs.storage);
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return this;
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}
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/// Ditto.
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ref typeof(this) opAssign(typeof(this) rhs)
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{
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swap(allocator_, rhs.allocator_);
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swap(storage, rhs.storage);
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return this;
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}
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/**
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* Returns: Reference to the owned object.
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*/
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inout(Payload) get() inout pure nothrow @safe @nogc
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in
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{
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assert(count > 0, "Attempted to access an uninitialized reference.");
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}
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body
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{
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return storage.payload;
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}
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/**
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* Returns: Reference to the owned object.
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*/
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inout(Payload) get() inout pure nothrow @safe @nogc
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in
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{
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assert(count > 0, "Attempted to access an uninitialized reference.");
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}
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body
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{
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return storage.payload;
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}
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static if (isPointer!Payload)
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{
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/**
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* Params:
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* op = Operation.
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*
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* Dereferences the pointer. It is defined only for pointers, not for
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* reference types like classes, that can be accessed directly.
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||||
*
|
||||
* Returns: Reference to the pointed value.
|
||||
*/
|
||||
ref T opUnary(string op)()
|
||||
if (op == "*")
|
||||
{
|
||||
return *storage.payload;
|
||||
}
|
||||
}
|
||||
static if (isPointer!Payload)
|
||||
{
|
||||
/**
|
||||
* Params:
|
||||
* op = Operation.
|
||||
*
|
||||
* Dereferences the pointer. It is defined only for pointers, not for
|
||||
* reference types like classes, that can be accessed directly.
|
||||
*
|
||||
* Returns: Reference to the pointed value.
|
||||
*/
|
||||
ref T opUnary(string op)()
|
||||
if (op == "*")
|
||||
{
|
||||
return *storage.payload;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns: Whether this $(D_PSYMBOL RefCounted) already has an internal
|
||||
* storage.
|
||||
*/
|
||||
@property bool isInitialized() const
|
||||
{
|
||||
return storage !is null;
|
||||
}
|
||||
/**
|
||||
* Returns: Whether this $(D_PSYMBOL RefCounted) already has an internal
|
||||
* storage.
|
||||
*/
|
||||
@property bool isInitialized() const
|
||||
{
|
||||
return storage !is null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns: The number of $(D_PSYMBOL RefCounted) instances that share
|
||||
* ownership over the same pointer (including $(D_KEYWORD this)).
|
||||
* If this $(D_PSYMBOL RefCounted) isn't initialized, returns `0`.
|
||||
*/
|
||||
@property size_t count() const
|
||||
{
|
||||
return storage is null ? 0 : storage.counter;
|
||||
}
|
||||
/**
|
||||
* Returns: The number of $(D_PSYMBOL RefCounted) instances that share
|
||||
* ownership over the same pointer (including $(D_KEYWORD this)).
|
||||
* If this $(D_PSYMBOL RefCounted) isn't initialized, returns `0`.
|
||||
*/
|
||||
@property size_t count() const
|
||||
{
|
||||
return storage is null ? 0 : storage.counter;
|
||||
}
|
||||
|
||||
mixin DefaultAllocator;
|
||||
alias get this;
|
||||
mixin DefaultAllocator;
|
||||
alias get this;
|
||||
}
|
||||
|
||||
///
|
||||
unittest
|
||||
{
|
||||
auto rc = RefCounted!int(defaultAllocator.make!int(5), defaultAllocator);
|
||||
auto val = rc.get;
|
||||
auto rc = RefCounted!int(defaultAllocator.make!int(5), defaultAllocator);
|
||||
auto val = rc.get;
|
||||
|
||||
*val = 8;
|
||||
assert(*rc.storage.payload == 8);
|
||||
*val = 8;
|
||||
assert(*rc.storage.payload == 8);
|
||||
|
||||
val = null;
|
||||
assert(rc.storage.payload !is null);
|
||||
assert(*rc.storage.payload == 8);
|
||||
val = null;
|
||||
assert(rc.storage.payload !is null);
|
||||
assert(*rc.storage.payload == 8);
|
||||
|
||||
*rc = 9;
|
||||
assert(*rc.storage.payload == 9);
|
||||
*rc = 9;
|
||||
assert(*rc.storage.payload == 9);
|
||||
}
|
||||
|
||||
version (unittest)
|
||||
{
|
||||
private class A
|
||||
{
|
||||
uint *destroyed;
|
||||
private class A
|
||||
{
|
||||
uint *destroyed;
|
||||
|
||||
this(ref uint destroyed) @nogc
|
||||
{
|
||||
this.destroyed = &destroyed;
|
||||
}
|
||||
this(ref uint destroyed) @nogc
|
||||
{
|
||||
this.destroyed = &destroyed;
|
||||
}
|
||||
|
||||
~this() @nogc
|
||||
{
|
||||
++(*destroyed);
|
||||
}
|
||||
}
|
||||
~this() @nogc
|
||||
{
|
||||
++(*destroyed);
|
||||
}
|
||||
}
|
||||
|
||||
private struct B
|
||||
{
|
||||
int prop;
|
||||
@disable this();
|
||||
this(int param1) @nogc
|
||||
{
|
||||
prop = param1;
|
||||
}
|
||||
}
|
||||
private struct B
|
||||
{
|
||||
int prop;
|
||||
@disable this();
|
||||
this(int param1) @nogc
|
||||
{
|
||||
prop = param1;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private unittest
|
||||
{
|
||||
uint destroyed;
|
||||
auto a = defaultAllocator.make!A(destroyed);
|
||||
uint destroyed;
|
||||
auto a = defaultAllocator.make!A(destroyed);
|
||||
|
||||
assert(destroyed == 0);
|
||||
{
|
||||
auto rc = RefCounted!A(a, defaultAllocator);
|
||||
assert(rc.count == 1);
|
||||
assert(destroyed == 0);
|
||||
{
|
||||
auto rc = RefCounted!A(a, defaultAllocator);
|
||||
assert(rc.count == 1);
|
||||
|
||||
void func(RefCounted!A rc)
|
||||
{
|
||||
assert(rc.count == 2);
|
||||
}
|
||||
func(rc);
|
||||
void func(RefCounted!A rc)
|
||||
{
|
||||
assert(rc.count == 2);
|
||||
}
|
||||
func(rc);
|
||||
|
||||
assert(rc.count == 1);
|
||||
}
|
||||
assert(destroyed == 1);
|
||||
assert(rc.count == 1);
|
||||
}
|
||||
assert(destroyed == 1);
|
||||
|
||||
RefCounted!int rc;
|
||||
assert(rc.count == 0);
|
||||
rc = defaultAllocator.make!int(8);
|
||||
assert(rc.count == 1);
|
||||
RefCounted!int rc;
|
||||
assert(rc.count == 0);
|
||||
rc = defaultAllocator.make!int(8);
|
||||
assert(rc.count == 1);
|
||||
}
|
||||
|
||||
private unittest
|
||||
{
|
||||
static assert(is(typeof(RefCounted!int.storage.payload) == int*));
|
||||
static assert(is(typeof(RefCounted!A.storage.payload) == A));
|
||||
static assert(is(typeof(RefCounted!int.storage.payload) == int*));
|
||||
static assert(is(typeof(RefCounted!A.storage.payload) == A));
|
||||
|
||||
static assert(is(RefCounted!B));
|
||||
static assert(is(RefCounted!A));
|
||||
static assert(is(RefCounted!B));
|
||||
static assert(is(RefCounted!A));
|
||||
}
|
||||
|
||||
/**
|
||||
@ -374,85 +374,85 @@ private unittest
|
||||
* object).
|
||||
*
|
||||
* Params:
|
||||
* T = Type of the constructed object.
|
||||
* A = Types of the arguments to the constructor of $(D_PARAM T).
|
||||
* allocator = Allocator.
|
||||
* args = Constructor arguments of $(D_PARAM T).
|
||||
* T = Type of the constructed object.
|
||||
* A = Types of the arguments to the constructor of $(D_PARAM T).
|
||||
* allocator = Allocator.
|
||||
* args = Constructor arguments of $(D_PARAM T).
|
||||
*
|
||||
* Returns: Newly created $(D_PSYMBOL RefCounted!T).
|
||||
*/
|
||||
RefCounted!T refCounted(T, A...)(shared Allocator allocator, auto ref A args)
|
||||
if (!is(T == interface) && !isAbstractClass!T
|
||||
if (!is(T == interface) && !isAbstractClass!T
|
||||
&& !isArray!T && !isAssociativeArray!T)
|
||||
{
|
||||
auto rc = typeof(return)(allocator);
|
||||
auto rc = typeof(return)(allocator);
|
||||
|
||||
immutable storageSize = alignedSize(stateSize!(RefCounted!T.Storage));
|
||||
immutable size = alignedSize(stateSize!T + storageSize);
|
||||
immutable storageSize = alignedSize(stateSize!(RefCounted!T.Storage));
|
||||
immutable size = alignedSize(stateSize!T + storageSize);
|
||||
|
||||
auto mem = (() @trusted => allocator.allocate(size))();
|
||||
if (mem is null)
|
||||
{
|
||||
onOutOfMemoryError();
|
||||
}
|
||||
scope (failure)
|
||||
{
|
||||
() @trusted { allocator.deallocate(mem); }();
|
||||
}
|
||||
rc.storage = emplace!(RefCounted!T.Storage)(mem[0 .. storageSize]);
|
||||
auto mem = (() @trusted => allocator.allocate(size))();
|
||||
if (mem is null)
|
||||
{
|
||||
onOutOfMemoryError();
|
||||
}
|
||||
scope (failure)
|
||||
{
|
||||
() @trusted { allocator.deallocate(mem); }();
|
||||
}
|
||||
rc.storage = emplace!(RefCounted!T.Storage)(mem[0 .. storageSize]);
|
||||
|
||||
static if (is(T == class))
|
||||
{
|
||||
rc.storage.payload = emplace!T(mem[storageSize .. $], args);
|
||||
}
|
||||
else
|
||||
{
|
||||
auto ptr = (() @trusted => (cast(T*) mem[storageSize .. $].ptr))();
|
||||
rc.storage.payload = emplace!T(ptr, args);
|
||||
}
|
||||
return rc;
|
||||
static if (is(T == class))
|
||||
{
|
||||
rc.storage.payload = emplace!T(mem[storageSize .. $], args);
|
||||
}
|
||||
else
|
||||
{
|
||||
auto ptr = (() @trusted => (cast(T*) mem[storageSize .. $].ptr))();
|
||||
rc.storage.payload = emplace!T(ptr, args);
|
||||
}
|
||||
return rc;
|
||||
}
|
||||
|
||||
///
|
||||
unittest
|
||||
{
|
||||
auto rc = defaultAllocator.refCounted!int(5);
|
||||
assert(rc.count == 1);
|
||||
auto rc = defaultAllocator.refCounted!int(5);
|
||||
assert(rc.count == 1);
|
||||
|
||||
void func(RefCounted!int param)
|
||||
{
|
||||
if (param.count == 2)
|
||||
{
|
||||
func(param);
|
||||
}
|
||||
else
|
||||
{
|
||||
assert(param.count == 3);
|
||||
}
|
||||
}
|
||||
func(rc);
|
||||
void func(RefCounted!int param)
|
||||
{
|
||||
if (param.count == 2)
|
||||
{
|
||||
func(param);
|
||||
}
|
||||
else
|
||||
{
|
||||
assert(param.count == 3);
|
||||
}
|
||||
}
|
||||
func(rc);
|
||||
|
||||
assert(rc.count == 1);
|
||||
assert(rc.count == 1);
|
||||
}
|
||||
|
||||
private @nogc unittest
|
||||
{
|
||||
struct E
|
||||
{
|
||||
}
|
||||
auto b = defaultAllocator.refCounted!B(15);
|
||||
static assert(is(typeof(b.storage.payload) == B*));
|
||||
static assert(is(typeof(b.prop) == int));
|
||||
static assert(!is(typeof(defaultAllocator.refCounted!B())));
|
||||
struct E
|
||||
{
|
||||
}
|
||||
auto b = defaultAllocator.refCounted!B(15);
|
||||
static assert(is(typeof(b.storage.payload) == B*));
|
||||
static assert(is(typeof(b.prop) == int));
|
||||
static assert(!is(typeof(defaultAllocator.refCounted!B())));
|
||||
|
||||
static assert(is(typeof(defaultAllocator.refCounted!E())));
|
||||
static assert(!is(typeof(defaultAllocator.refCounted!E(5))));
|
||||
{
|
||||
auto rc = defaultAllocator.refCounted!B(3);
|
||||
assert(rc.get.prop == 3);
|
||||
}
|
||||
{
|
||||
auto rc = defaultAllocator.refCounted!E();
|
||||
assert(rc.count);
|
||||
}
|
||||
static assert(is(typeof(defaultAllocator.refCounted!E())));
|
||||
static assert(!is(typeof(defaultAllocator.refCounted!E(5))));
|
||||
{
|
||||
auto rc = defaultAllocator.refCounted!B(3);
|
||||
assert(rc.get.prop == 3);
|
||||
}
|
||||
{
|
||||
auto rc = defaultAllocator.refCounted!E();
|
||||
assert(rc.count);
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user