Struct retro_perf_callback

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#[repr(C)]
pub struct retro_perf_callback { pub get_time_usec: retro_perf_get_time_usec_t, pub get_cpu_features: retro_get_cpu_features_t, pub get_perf_counter: retro_perf_get_counter_t, pub perf_register: retro_perf_register_t, pub perf_start: retro_perf_start_t, pub perf_stop: retro_perf_stop_t, pub perf_log: retro_perf_log_t, }
Expand description

For convenience it can be useful to wrap register, start and stop in macros. E.g.: #ifdef LOG_PERFORMANCE #define RETRO_PERFORMANCE_INIT(perf_cb, name) static struct retro_perf_counter name = {#name}; if (!name.registered) perf_cb.perf_register(&(name)) #define RETRO_PERFORMANCE_START(perf_cb, name) perf_cb.perf_start(&(name)) #define RETRO_PERFORMANCE_STOP(perf_cb, name) perf_cb.perf_stop(&(name)) #else … Blank macros … #endif

These can then be used mid-functions around code snippets.

extern struct retro_perf_callback perf_cb; * Somewhere in the core.

void do_some_heavy_work(void) { RETRO_PERFORMANCE_INIT(cb, work_1; RETRO_PERFORMANCE_START(cb, work_1); heavy_work_1(); RETRO_PERFORMANCE_STOP(cb, work_1);

RETRO_PERFORMANCE_INIT(cb, work_2); RETRO_PERFORMANCE_START(cb, work_2); heavy_work_2(); RETRO_PERFORMANCE_STOP(cb, work_2); }

void retro_deinit(void) { perf_cb.perf_log(); * Log all perf counters here for example. }

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§get_time_usec: retro_perf_get_time_usec_t§get_cpu_features: retro_get_cpu_features_t§get_perf_counter: retro_perf_get_counter_t§perf_register: retro_perf_register_t§perf_start: retro_perf_start_t§perf_stop: retro_perf_stop_t§perf_log: retro_perf_log_t

Trait Implementations§

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impl Clone for retro_perf_callback

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fn clone(&self) -> retro_perf_callback

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

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

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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 retro_perf_callback

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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

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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
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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, U> TryFrom<U> for T
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type Error = Infallible

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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

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.