92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
#ifndef MAZE32_GATEWAY_H
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#define MAZE32_GATEWAY_H
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#include <stddef.h>
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#include <stdint.h>
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#include "esp_err.h"
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#include "esp_http_server.h"
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#include "esp_timer.h"
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#include "maze32_game.h"
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#include "maze32_lobby.h"
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#include "maze32_maze.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define MAZE32_GATEWAY_CONNECTION_LIMIT MAZE32_SESSION_LIMIT
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#define MAZE32_GATEWAY_QUEUE_LIMIT 12U
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#define MAZE32_GATEWAY_OUTGOING_LIMIT 768U
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#define MAZE32_GATEWAY_RATE_LIMIT_PER_SECOND 20U
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#define MAZE32_GATEWAY_RATE_LIMIT_CLOSE_THRESHOLD 40U
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#define MAZE32_GATEWAY_PLAYER_LATENCY_BUDGET_MS 500U
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typedef struct {
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int active;
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int socket_fd;
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uint32_t last_client_sequence;
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uint64_t rate_window_started_ms;
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unsigned int messages_in_window;
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int closing;
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} maze32_gateway_connection_t;
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typedef struct {
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int socket_fd;
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size_t length;
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int drop_if_busy;
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char payload[MAZE32_GATEWAY_OUTGOING_LIMIT];
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} maze32_gateway_outgoing_t;
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typedef struct {
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uint32_t connection_high_water;
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uint32_t queue_high_water;
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uint32_t messages_received;
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uint32_t messages_sent;
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uint32_t messages_dropped;
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uint32_t send_failures;
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uint32_t malformed_messages;
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uint32_t oversized_messages;
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uint32_t rate_limited_messages;
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uint32_t accepted_game_commands;
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uint32_t matches_started;
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uint32_t matches_completed;
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uint32_t matches_reset;
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uint64_t maximum_handler_us;
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uint64_t maximum_send_us;
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size_t minimum_internal_free_bytes;
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size_t minimum_internal_largest_block_bytes;
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} maze32_gateway_metrics_t;
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typedef struct {
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httpd_handle_t server;
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maze32_lobby_t lobby;
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maze32_gateway_connection_t connections[MAZE32_GATEWAY_CONNECTION_LIMIT];
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maze32_gateway_outgoing_t outgoing[MAZE32_GATEWAY_QUEUE_LIMIT];
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size_t outgoing_head;
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size_t outgoing_count;
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uint32_t server_sequence;
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esp_timer_handle_t countdown_timer;
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esp_timer_handle_t reconnect_timer;
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esp_timer_handle_t finish_timer;
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maze32_gateway_metrics_t metrics;
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maze32_maze_t maze;
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maze32_maze_workspace_t maze_workspace;
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maze32_game_t game;
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maze32_view_t view;
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} maze32_gateway_t;
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esp_err_t maze32_gateway_init(maze32_gateway_t* gateway);
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void maze32_gateway_set_server(maze32_gateway_t* gateway, httpd_handle_t server);
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esp_err_t maze32_gateway_register(httpd_handle_t server, maze32_gateway_t* gateway);
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void maze32_gateway_close_socket(httpd_handle_t server, int socket_fd);
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int maze32_gateway_can_reconfigure(const maze32_gateway_t* gateway);
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size_t maze32_gateway_format_diagnostics(maze32_gateway_t* gateway, char* output,
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size_t output_size);
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#ifdef __cplusplus
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}
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#endif
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#endif
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