SystemVerilog禁用分叉高效管理指南：避免线程泄漏与验证超时问题
fork begin : packet_gen
// 数据生成代码
end begin : protocol_check
// 协议检查代码
end join_none
#100ns; disable fork;
task automatic run_transaction(); fork
begin : data_stream
while(1) begin
send_packet();
#10ns;
end
end
begin : watchdog
#1us;
$error("Transaction timeout");
end
join_any
disable fork; clear_buffers(); endtask
task automatic sensor_monitor(); fork
begin : TEMP_SENSING
while(1) begin
read_temperature();
#50ns;
end
end
begin : PRESSURE_CHECK
detect_pressure_change();
end
join_none
#200ns; disable TEMP_SENSING; endtask
task automatic safe_disable(); bit fork_active = 0;
fork
begin
fork_active = 1;
// 核心逻辑
process_transactions();
end
join_none
#timeout; if(fork_active) begin
disable fork;
log_cleanup();
end endtask
task nested_fork_control(); fork : OUTER_LAYER
forever begin
fork : INNER_LOOP
data_packet_transfer();
#10ns disable INNER_LOOP;
join
fork : TIMEOUT_WATCHER
#1us;
disable OUTER_LAYER;
join_none
end
join endtask