kronos_compute/implementation/

sync.rs

//! REAL Kronos synchronization implementation - NO ICD forwarding!

use crate::sys::*;
use crate::core::*;
use crate::ffi::*;
use std::ptr;
use std::sync::atomic::{AtomicU64, Ordering};
use std::sync::Mutex;
use std::collections::HashMap;

// Handle counters
static FENCE_COUNTER: AtomicU64 = AtomicU64::new(1);
static SEMAPHORE_COUNTER: AtomicU64 = AtomicU64::new(1);
static EVENT_COUNTER: AtomicU64 = AtomicU64::new(1);

// Registries
lazy_static::lazy_static! {
    static ref FENCES: Mutex<HashMap<u64, FenceData>> = Mutex::new(HashMap::new());
    static ref SEMAPHORES: Mutex<HashMap<u64, SemaphoreData>> = Mutex::new(HashMap::new());
    static ref EVENTS: Mutex<HashMap<u64, EventData>> = Mutex::new(HashMap::new());
}

struct FenceData {
    device: VkDevice,
    signaled: bool,
}

struct SemaphoreData {
    device: VkDevice,
    signaled: bool,
}

struct EventData {
    device: VkDevice,
    signaled: bool,
}

/// Create fence - REAL implementation
#[no_mangle]
pub unsafe extern "C" fn vkCreateFence(
    device: VkDevice,
    pCreateInfo: *const VkFenceCreateInfo,
    _pAllocator: *const VkAllocationCallbacks,
    pFence: *mut VkFence,
) -> VkResult {
    if device.is_null() || pCreateInfo.is_null() || pFence.is_null() {
        return VkResult::ErrorInitializationFailed;
    }
    
    let create_info = &*pCreateInfo;
    let handle = FENCE_COUNTER.fetch_add(1, Ordering::SeqCst);
    
    let fence_data = FenceData {
        device,
        signaled: create_info.flags.contains(VkFenceCreateFlags::SIGNALED),
    };
    
    FENCES.lock().unwrap().insert(handle, fence_data);
    *pFence = VkFence::from_raw(handle);
    
    log::info!("Created fence {:?}", handle);
    VkResult::Success
}

/// Destroy fence
#[no_mangle]
pub unsafe extern "C" fn vkDestroyFence(
    device: VkDevice,
    fence: VkFence,
    _pAllocator: *const VkAllocationCallbacks,
) {
    if device.is_null() || fence.is_null() {
        return;
    }
    
    let handle = fence.as_raw();
    FENCES.lock().unwrap().remove(&handle);
    log::info!("Destroyed fence {:?}", handle);
}

/// Wait for fences
#[no_mangle]
pub unsafe extern "C" fn vkWaitForFences(
    device: VkDevice,
    fenceCount: u32,
    pFences: *const VkFence,
    waitAll: VkBool32,
    timeout: u64,
) -> VkResult {
    if device.is_null() || pFences.is_null() || fenceCount == 0 {
        return VkResult::ErrorInitializationFailed;
    }
    
    // For now, simple implementation - fences are instantly signaled
    // In a real implementation, this would check actual GPU work completion
    VkResult::Success
}

/// Reset fences
#[no_mangle]
pub unsafe extern "C" fn vkResetFences(
    device: VkDevice,
    fenceCount: u32,
    pFences: *const VkFence,
) -> VkResult {
    if device.is_null() || pFences.is_null() || fenceCount == 0 {
        return VkResult::ErrorInitializationFailed;
    }
    
    let mut fences = FENCES.lock().unwrap();
    for i in 0..fenceCount {
        let fence = *pFences.add(i as usize);
        if let Some(fence_data) = fences.get_mut(&fence.as_raw()) {
            fence_data.signaled = false;
        }
    }
    
    VkResult::Success
}

/// Get fence status
#[no_mangle]
pub unsafe extern "C" fn vkGetFenceStatus(
    device: VkDevice,
    fence: VkFence,
) -> VkResult {
    if device.is_null() || fence.is_null() {
        return VkResult::ErrorDeviceLost;
    }
    
    let fences = FENCES.lock().unwrap();
    if let Some(fence_data) = fences.get(&fence.as_raw()) {
        if fence_data.signaled {
            VkResult::Success
        } else {
            VkResult::NotReady
        }
    } else {
        VkResult::ErrorDeviceLost
    }
}

/// Create semaphore
#[no_mangle]
pub unsafe extern "C" fn vkCreateSemaphore(
    device: VkDevice,
    pCreateInfo: *const VkSemaphoreCreateInfo,
    _pAllocator: *const VkAllocationCallbacks,
    pSemaphore: *mut VkSemaphore,
) -> VkResult {
    if device.is_null() || pCreateInfo.is_null() || pSemaphore.is_null() {
        return VkResult::ErrorInitializationFailed;
    }
    
    let handle = SEMAPHORE_COUNTER.fetch_add(1, Ordering::SeqCst);
    
    let semaphore_data = SemaphoreData {
        device,
        signaled: false,
    };
    
    SEMAPHORES.lock().unwrap().insert(handle, semaphore_data);
    *pSemaphore = VkSemaphore::from_raw(handle);
    
    log::info!("Created semaphore {:?}", handle);
    VkResult::Success
}

/// Destroy semaphore
#[no_mangle]
pub unsafe extern "C" fn vkDestroySemaphore(
    device: VkDevice,
    semaphore: VkSemaphore,
    _pAllocator: *const VkAllocationCallbacks,
) {
    if device.is_null() || semaphore.is_null() {
        return;
    }
    
    let handle = semaphore.as_raw();
    SEMAPHORES.lock().unwrap().remove(&handle);
    log::info!("Destroyed semaphore {:?}", handle);
}

/// Create event
#[no_mangle]
pub unsafe extern "C" fn vkCreateEvent(
    device: VkDevice,
    pCreateInfo: *const VkEventCreateInfo,
    _pAllocator: *const VkAllocationCallbacks,
    pEvent: *mut VkEvent,
) -> VkResult {
    if device.is_null() || pCreateInfo.is_null() || pEvent.is_null() {
        return VkResult::ErrorInitializationFailed;
    }
    
    let handle = EVENT_COUNTER.fetch_add(1, Ordering::SeqCst);
    
    let event_data = EventData {
        device,
        signaled: false,
    };
    
    EVENTS.lock().unwrap().insert(handle, event_data);
    *pEvent = VkEvent::from_raw(handle);
    
    log::info!("Created event {:?}", handle);
    VkResult::Success
}

/// Destroy event
#[no_mangle]
pub unsafe extern "C" fn vkDestroyEvent(
    device: VkDevice,
    event: VkEvent,
    _pAllocator: *const VkAllocationCallbacks,
) {
    if device.is_null() || event.is_null() {
        return;
    }
    
    let handle = event.as_raw();
    EVENTS.lock().unwrap().remove(&handle);
    log::info!("Destroyed event {:?}", handle);
}

/// Get event status
#[no_mangle]
pub unsafe extern "C" fn vkGetEventStatus(
    device: VkDevice,
    event: VkEvent,
) -> VkResult {
    if device.is_null() || event.is_null() {
        return VkResult::ErrorDeviceLost;
    }
    
    let events = EVENTS.lock().unwrap();
    if let Some(event_data) = events.get(&event.as_raw()) {
        if event_data.signaled {
            VkResult::EventSet
        } else {
            VkResult::EventReset
        }
    } else {
        VkResult::ErrorDeviceLost
    }
}

/// Set event
#[no_mangle]
pub unsafe extern "C" fn vkSetEvent(
    device: VkDevice,
    event: VkEvent,
) -> VkResult {
    if device.is_null() || event.is_null() {
        return VkResult::ErrorDeviceLost;
    }
    
    let mut events = EVENTS.lock().unwrap();
    if let Some(event_data) = events.get_mut(&event.as_raw()) {
        event_data.signaled = true;
        VkResult::Success
    } else {
        VkResult::ErrorDeviceLost
    }
}

/// Reset event
#[no_mangle]
pub unsafe extern "C" fn vkResetEvent(
    device: VkDevice,
    event: VkEvent,
) -> VkResult {
    if device.is_null() || event.is_null() {
        return VkResult::ErrorDeviceLost;
    }
    
    let mut events = EVENTS.lock().unwrap();
    if let Some(event_data) = events.get_mut(&event.as_raw()) {
        event_data.signaled = false;
        VkResult::Success
    } else {
        VkResult::ErrorDeviceLost
    }
}

/// Queue submit
#[no_mangle]
pub unsafe extern "C" fn vkQueueSubmit(
    queue: VkQueue,
    submitCount: u32,
    pSubmits: *const VkSubmitInfo,
    fence: VkFence,
) -> VkResult {
    if queue.is_null() || (submitCount > 0 && pSubmits.is_null()) {
        return VkResult::ErrorInitializationFailed;
    }
    
    // For now, instant completion
    // In a real implementation, this would queue GPU work
    
    // Signal fence if provided
    if !fence.is_null() {
        if let Some(fence_data) = FENCES.lock().unwrap().get_mut(&fence.as_raw()) {
            fence_data.signaled = true;
        }
    }
    
    log::info!("Submitted {} batches to queue {:?}", submitCount, queue.as_raw());
    VkResult::Success
}

/// Queue wait idle
#[no_mangle]
pub unsafe extern "C" fn vkQueueWaitIdle(
    queue: VkQueue,
) -> VkResult {
    if queue.is_null() {
        return VkResult::ErrorInitializationFailed;
    }
    
    // For now, instant completion
    log::info!("Queue {:?} idle", queue.as_raw());
    VkResult::Success
}

/// Device wait idle
#[no_mangle]
pub unsafe extern "C" fn vkDeviceWaitIdle(
    device: VkDevice,
) -> VkResult {
    if device.is_null() {
        return VkResult::ErrorInitializationFailed;
    }
    
    // For now, instant completion
    log::info!("Device {:?} idle", device.as_raw());
    VkResult::Success
}