Struct retro_perf_callback 

#[repr(C)]
pub struct retro_perf_callback {
    pub get_time_usec: Option<unsafe extern "C" fn() -> i64>,
    pub get_cpu_features: Option<unsafe extern "C" fn() -> u64>,
    pub get_perf_counter: Option<unsafe extern "C" fn() -> u64>,
    pub perf_register: Option<unsafe extern "C" fn(*mut retro_perf_counter)>,
    pub perf_start: Option<unsafe extern "C" fn(*mut retro_perf_counter)>,
    pub perf_stop: Option<unsafe extern "C" fn(*mut retro_perf_counter)>,
    pub perf_log: Option<unsafe extern "C" fn()>,
}

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. }

Fields

get_time_usec: Option<unsafe extern "C" fn() -> i64>

get_cpu_features: Option<unsafe extern "C" fn() -> u64>

get_perf_counter: Option<unsafe extern "C" fn() -> u64>

perf_register: Option<unsafe extern "C" fn(*mut retro_perf_counter)>

perf_start: Option<unsafe extern "C" fn(*mut retro_perf_counter)>

perf_stop: Option<unsafe extern "C" fn(*mut retro_perf_counter)>

perf_log: Option<unsafe extern "C" fn()>

Trait Implementations

impl Clone for retro_perf_callback

fn clone(&self) -> retro_perf_callback

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for retro_perf_callback

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

Formats the value using the given formatter.

impl Copy for retro_perf_callback