Application Limits

Limits for clients, frame rates, display names, and other constraints. More...

Files
file	limits.h
	Application limits and constraints.

Macros
#define	MAX_CONFIGURED_STUN_SERVERS   4
#define	MAX_CONFIGURED_TURN_SERVERS   4
#define	IP_ADDRESS_BUFFER_SIZE   64
#define	PORT_STRING_BUFFER_SIZE   6
#define	SESSION_ID_SIZE   16
#define	MAX_SESSION_PARTICIPANTS   128
#define	MAX_SESSION_KEYS   32
#define	MAX_HOSTNAME_LENGTH   253
#define	MAX_HOSTNAME_LABEL_LENGTH   63
#define	HOSTNAME_BUFFER_SIZE   256
#define	MAX_URL_LENGTH   4095
#define	URL_BUFFER_SIZE   (MAX_URL_LENGTH + 1)
#define	MEDIA_URL_CACHE_SIZE   2048
#define	MEDIA_STREAM_URL_SIZE   8192
#define	MAX_DISPLAY_NAME_LEN   32
	Maximum display name length in characters.
#define	MAX_CLIENT_ID_LEN   64
	Maximum client ID length - format: "noun.N (transport:port)" e.g., "mountain.0 (tcp:48036)".
#define	MAX_CLIENTS   MAX_SESSION_PARTICIPANTS
	Maximum possible clients (static array size) - actual runtime limit set by –max-clients (1-128).
#define	DEFAULT_MAX_FPS   60
	Default maximum frame rate (frames per second).
#define	FRAME_INTERVAL_MS   (1000 / DEFAULT_MAX_FPS)
	Frame interval in milliseconds based on default FPS (compile-time constant).
#define	FRAME_BUFFER_CAPACITY   (DEFAULT_MAX_FPS / 4)
	Frame buffer capacity based on default FPS (compile-time constant).

Detailed Description

Limits for clients, frame rates, display names, and other constraints.

Macro Definition Documentation

DEFAULT_MAX_FPS

#define DEFAULT_MAX_FPS   60

#include <include/ascii-chat/common/limits.h>

Default maximum frame rate (frames per second).

Definition at line 66 of file common/limits.h.

Referenced by handle_client_capabilities_packet(), session_capture_create(), session_host_add_client(), session_network_capture_create(), session_participant_request_settings(), and session_protocol_build_capabilities().

FRAME_BUFFER_CAPACITY

#define FRAME_BUFFER_CAPACITY   (DEFAULT_MAX_FPS / 4)

#include <include/ascii-chat/common/limits.h>

Frame buffer capacity based on default FPS (compile-time constant).

Definition at line 72 of file common/limits.h.

FRAME_INTERVAL_MS

#define FRAME_INTERVAL_MS   (1000 / DEFAULT_MAX_FPS)

#include <include/ascii-chat/common/limits.h>

Frame interval in milliseconds based on default FPS (compile-time constant).

Definition at line 69 of file common/limits.h.

HOSTNAME_BUFFER_SIZE

#define HOSTNAME_BUFFER_SIZE   256

#include <include/ascii-chat/common/limits.h>

Existing endpoint/OS hostname storage capacity, including NUL. Also holds bracketed IPv6 literals and zone identifiers; do not use it as DNS validation.

Definition at line 41 of file common/limits.h.

Referenced by dns_test_connectivity(), hostname_to_ascii(), https_get(), parallel_connect(), parse_address_with_optional_port(), session_server_like_mdns_advertise(), and url_parse().

IP_ADDRESS_BUFFER_SIZE

#define IP_ADDRESS_BUFFER_SIZE   64

#include <include/ascii-chat/common/limits.h>

Existing IP text storage budget, including NUL and room for common scope IDs.

Definition at line 19 of file common/limits.h.

Referenced by compare_ip_port_strings().

MAX_CLIENT_ID_LEN

#define MAX_CLIENT_ID_LEN   64

#include <include/ascii-chat/common/limits.h>

Maximum client ID length - format: "noun.N (transport:port)" e.g., "mountain.0 (tcp:48036)".

Definition at line 60 of file common/limits.h.

Referenced by add_transport_client(), client_audio_render_thread(), and client_video_render_thread().

MAX_CLIENTS

#define MAX_CLIENTS   MAX_SESSION_PARTICIPANTS

#include <include/ascii-chat/common/limits.h>

Maximum possible clients (static array size) - actual runtime limit set by –max-clients (1-128).

Definition at line 63 of file common/limits.h.

Referenced by acip_security_init_options(), add_transport_client(), any_clients_sending_video(), create_mixed_ascii_frame_for_client(), crypto_handshake_client_key_exchange(), fetch_github_gpg_keys(), fetch_github_ssh_keys(), fetch_gitlab_gpg_keys(), fetch_gitlab_ssh_keys(), h265_server_context_create(), h265_server_context_destroy(), h265_server_get_client_decoder(), h265_server_remove_client(), send_server_state_to_client(), and stats_logger_thread().

MAX_CONFIGURED_STUN_SERVERS

#define MAX_CONFIGURED_STUN_SERVERS   4

#include <include/ascii-chat/common/limits.h>

Definition at line 15 of file common/limits.h.

MAX_CONFIGURED_TURN_SERVERS

#define MAX_CONFIGURED_TURN_SERVERS   4

#include <include/ascii-chat/common/limits.h>

Definition at line 16 of file common/limits.h.

MAX_DISPLAY_NAME_LEN

#define MAX_DISPLAY_NAME_LEN   32

#include <include/ascii-chat/common/limits.h>

Maximum display name length in characters.

Definition at line 57 of file common/limits.h.

Referenced by handle_client_join_packet(), and threaded_send_client_join_packet().

MAX_HOSTNAME_LABEL_LENGTH

#define MAX_HOSTNAME_LABEL_LENGTH   63

#include <include/ascii-chat/common/limits.h>

Maximum bytes in an ASCII DNS label, excluding separators and NUL.

Definition at line 37 of file common/limits.h.

MAX_HOSTNAME_LENGTH

#define MAX_HOSTNAME_LENGTH   253

#include <include/ascii-chat/common/limits.h>

Maximum ASCII DNS hostname bytes, excluding the NUL and a trailing root dot. Apply after IDNA conversion, not to UTF-8 input bytes or codepoint counts.

Definition at line 34 of file common/limits.h.

Referenced by hostname_to_ascii().

MAX_SESSION_KEYS

#define MAX_SESSION_KEYS   32

#include <include/ascii-chat/common/limits.h>

Maximum Ed25519 identity keys in one session create sequence.

Definition at line 30 of file common/limits.h.

Referenced by acds_create_key_set_collect(), acds_protocol_create(), acip_server_validate_session_create(), discovery_session_create(), and options_collect_identity_keys().

MAX_SESSION_PARTICIPANTS

#define MAX_SESSION_PARTICIPANTS   128

#include <include/ascii-chat/common/limits.h>

Maximum members supported by session storage, hosting and elections.

Definition at line 27 of file common/limits.h.

Referenced by acds_protocol_create(), acds_protocol_enter(), acip_server_validate_session_create(), consensus_create_for_discovery(), consensus_handoff_join(), consensus_handoff_tick(), consensus_topology_create(), consensus_topology_get_all(), session_consensus_create(), session_consensus_set_topology(), session_entry_destroy(), validate_opt_max_clients(), and websocket_server_init().

MAX_URL_LENGTH

#define MAX_URL_LENGTH   4095

#include <include/ascii-chat/common/limits.h>

Maximum normalized schemeless URL bytes, excluding NUL (includes added http://). Explicit-scheme URLs parsed into allocated components have no such fixed limit.

Definition at line 45 of file common/limits.h.

MEDIA_STREAM_URL_SIZE

#define MEDIA_STREAM_URL_SIZE   8192

#include <include/ascii-chat/common/limits.h>

Definition at line 50 of file common/limits.h.

Referenced by media_source_create_interruptible(), yt_dlp_extract_stream_url(), and yt_dlp_extract_with_options().

MEDIA_URL_CACHE_SIZE

#define MEDIA_URL_CACHE_SIZE   2048

#include <include/ascii-chat/common/limits.h>

yt-dlp cache capacities, including NUL; these are not URL parser limits.

Definition at line 49 of file common/limits.h.

PORT_STRING_BUFFER_SIZE

#define PORT_STRING_BUFFER_SIZE   6

#include <include/ascii-chat/common/limits.h>

Decimal TCP/UDP port storage (65535 plus NUL).

Definition at line 21 of file common/limits.h.

Referenced by nat_upnp_close().

SESSION_ID_SIZE

#define SESSION_ID_SIZE   16

#include <include/ascii-chat/common/limits.h>

Binary UUID width shared by discovery, participants, and session identities.

Definition at line 24 of file common/limits.h.

Referenced by acds_on_host_announcement_ex(), acds_send_current_host(), consensus_coordinator_create(), consensus_coordinator_get_current_host(), consensus_coordinator_on_election_result(), consensus_coordinator_on_stats_update(), consensus_create_for_discovery(), consensus_election_choose_hosts(), consensus_election_verify(), consensus_handoff_decode(), consensus_handoff_encode(), consensus_handoff_encode(), consensus_handoff_host_lost(), consensus_handoff_init(), consensus_handoff_join(), consensus_handoff_leave(), consensus_handoff_receive(), consensus_handoff_tick(), consensus_metrics_measure(), consensus_state_create(), consensus_state_get_elected_backup(), consensus_state_get_elected_host(), consensus_state_store_election(), consensus_topology_create(), consensus_topology_get_all(), consensus_topology_get_leader(), consensus_topology_get_next(), consensus_topology_get_prev(), database_session_clear_host(), database_session_find_by_id(), database_session_is_migration_ready(), database_session_leave(), database_session_lookup(), database_session_start_migration(), database_session_transport_get(), database_session_transport_set(), database_session_update_host(), database_session_update_host_with_transport(), discovery_session_apply_handoff(), discovery_session_handle_host_disconnect(), discovery_session_stop(), discovery_webrtc_get_direct_signaling_callbacks(), discovery_webrtc_set_session_context(), negotiate_init(), session_consensus_create(), session_consensus_get_elected_host(), session_consensus_is_ready(), session_consensus_on_election_result(), session_consensus_on_stats_update(), session_consensus_set_topology(), signaling_broadcast(), DiscoveryBinding::snapshot(), webrtc_peer_manager_connect(), webrtc_peer_manager_dispatch_ready(), webrtc_peer_manager_get_state(), webrtc_peer_manager_handle_sdp(), webrtc_peer_manager_remove_peer(), and webrtc_set_session_context().

URL_BUFFER_SIZE

#define URL_BUFFER_SIZE   (MAX_URL_LENGTH + 1)

#include <include/ascii-chat/common/limits.h>

Definition at line 46 of file common/limits.h.

Referenced by connection_endpoint_resolve(), parse_address_with_optional_port(), session_connection_establish(), and url_parse().