PHYSFS_Allocator

Struct PHYSFS_Allocator 

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#[repr(C)]
pub struct PHYSFS_Allocator { pub Init: Option<unsafe extern "C" fn() -> c_int>, pub Deinit: Option<unsafe extern "C" fn()>, pub Malloc: Option<unsafe extern "C" fn(arg1: PHYSFS_uint64) -> *mut c_void>, pub Realloc: Option<unsafe extern "C" fn(arg1: *mut c_void, arg2: PHYSFS_uint64) -> *mut c_void>, pub Free: Option<unsafe extern "C" fn(arg1: *mut c_void)>, }
Expand description

\struct PHYSFS_Allocator \brief PhysicsFS allocation function pointers.

(This is for limited, hardcore use. If you don’t immediately see a need for it, you can probably ignore this forever.)

You create one of these structures for use with PHYSFS_setAllocator. Allocators are assumed to be reentrant by the caller; please mutex accordingly.

Allocations are always discussed in 64-bits, for future expansion…we’re on the cusp of a 64-bit transition, and we’ll probably be allocating 6 gigabytes like it’s nothing sooner or later, and I don’t want to change this again at that point. If you’re on a 32-bit platform and have to downcast, it’s okay to return NULL if the allocation is greater than 4 gigabytes, since you’d have to do so anyhow.

\sa PHYSFS_setAllocator

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§Init: Option<unsafe extern "C" fn() -> c_int>

< Initialize. Can be NULL. Zero on failure.

§Deinit: Option<unsafe extern "C" fn()>

< Deinitialize your allocator. Can be NULL.

§Malloc: Option<unsafe extern "C" fn(arg1: PHYSFS_uint64) -> *mut c_void>

< Allocate like malloc().

§Realloc: Option<unsafe extern "C" fn(arg1: *mut c_void, arg2: PHYSFS_uint64) -> *mut c_void>

< Reallocate like realloc().

§Free: Option<unsafe extern "C" fn(arg1: *mut c_void)>

< Free memory from Malloc or Realloc.

Trait Implementations§

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impl Clone for PHYSFS_Allocator

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fn clone(&self) -> PHYSFS_Allocator

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for PHYSFS_Allocator

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Copy for PHYSFS_Allocator

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.