Next Gen
Trading Infra.

package core

import (
    "sync/atomic"
    "unsafe"
    "github.com/stranity/fpga"
)

// HFT Engine Core Structure
type Engine struct {
    orderBook  *OrderBook
    riskCheck  *RiskController
    fpgaDev    *fpga.Device
    signalChan chan Signal
}

// Ultra-Low Latency Loop
func (e *Engine) Run() {
    for {
        // Zero-copy ring buffer read
        pkt := e.fpgaDev.PollDMA()
        
        // Atomic state check
        if atomic.LoadUint32(&e.state) != STATE_ACTIVE {
            continue
        }

        // Branchless logic for speed
        if pkt.Type == TYPE_TICK {
            // Direct memory access for OB update
            e.orderBook.UpdateUnsafe(pkt.Data)
            
            // Strategy Execution in Nanoseconds
            if signal := e.strategy.Evaluate(pkt); signal.Valid {
                // Bypass OS stack, send to NIC directly
                e.fpgaDev.FastSend(signal.Bytes())
                atomic.AddUint64(&e.txCount, 1)
            }
        }
    }
}

// Parallel Risk Computation
func (r *RiskController) Validate(o *Order) bool {
    // SIMD optimized instructions
    return r.exposure < r.limit && r.activeOrders < MAX_ORDERS
}

// ... Repeating for loop effect ...
func (e *Engine) Run() {
    for {
        pkt := e.fpgaDev.PollDMA()
        if atomic.LoadUint32(&e.state) != STATE_ACTIVE { continue }
        if pkt.Type == TYPE_TICK {
            e.orderBook.UpdateUnsafe(pkt.Data)
            if signal := e.strategy.Evaluate(pkt); signal.Valid {
                e.fpgaDev.FastSend(signal.Bytes())
                atomic.AddUint64(&e.txCount, 1)
            }
        }
    }
}