113 lines
3.4 KiB
C++
113 lines
3.4 KiB
C++
#ifndef UDPC_CONNECTION_H
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#define UDPC_CONNECTION_H
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// Determine platform macros
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#define UDPC_PLATFORM_WINDOWS 1
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#define UDPC_PLATFORM_MAC 2
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#define UDPC_PLATFORM_LINUX 3
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#define UDPC_PLATFORM_UNKNOWN 0
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#if defined _WIN32
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#define UDPC_PLATFORM UDPC_PLATFORM_WINDOWS
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#elif defined __APPLE__
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#define UDPC_PLATFORM UDPC_PLATFORM_MAC
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#elif defined __linux__
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#define UDPC_PLATFORM UDPC_PLATFORM_LINUX
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#else
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#define UDPC_PLATFORM UDPC_PLATFORM_UNKNOWN
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#endif
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// OS-based networking macros
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#if UDPC_PLATFORM == UDPC_PLATFORM_WINDOWS
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#include <winsock2.h>
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#define CleanupSocket(x) closesocket(x)
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#elif UDPC_PLATFORM == UDPC_PLATFORM_MAC || UDPC_PLATFORM == UDPC_PLATFORM_LINUX
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#include <fcntl.h>
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#include <netinet/in.h>
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#include <sys/socket.h>
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#include <unistd.h>
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#define CleanupSocket(x) close(x)
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#else
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#define CleanupSocket(x) ((void)0)
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#endif
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// other defines
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#define UDPC_PACKET_MAX_SIZE 8192
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#define UDPC_DEFAULT_PROTOCOL_ID 1357924680
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#ifdef __cplusplus
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#include <cstdint>
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extern "C" {
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#else
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#include <stdint.h>
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#endif
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// Opaque struct handle to Context
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struct UDPC_Context;
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typedef struct UDPC_Context *UDPC_HContext;
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typedef enum { SILENT, ERROR, WARNING, VERBOSE, INFO } UDPC_LoggingType;
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typedef struct {
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// id is stored at offset 8, size 4 (uint32_t) even for "empty" PktInfos
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char data[UDPC_PACKET_MAX_SIZE];
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/*
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* 0x1 - connect
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* 0x2 - ping
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* 0x4 - no_rec_chk
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* 0x8 - resending
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*/
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uint32_t flags;
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uint16_t dataSize; // zero if invalid
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uint32_t sender;
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uint32_t receiver;
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uint16_t senderPort;
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uint16_t receiverPort;
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} UDPC_PacketInfo;
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/// listenPort must be in native byte order, listenAddr must be in network byte order (big-endian)
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UDPC_HContext UDPC_init(uint16_t listenPort, uint32_t listenAddr, int isClient);
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/// listenPort must be in native byte order, listenAddr must be in network byte order (big-endian)
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UDPC_HContext UDPC_init_threaded_update(uint16_t listenPort, uint32_t listenAddr,
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int isClient);
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void UDPC_destroy(UDPC_HContext ctx);
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void UDPC_update(UDPC_HContext ctx);
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/// addr must be in network byte order (big-endian), port must be in native byte order
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void UDPC_client_initiate_connection(UDPC_HContext ctx, uint32_t addr, uint16_t port);
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/// addr must be in network byte order (big-endian), port must be in native byte order
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int UDPC_get_queue_send_available(UDPC_HContext ctx, uint32_t addr, uint16_t port);
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/// destAddr must be in network byte order (big-endian), destPort must be in native byte order
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void UDPC_queue_send(UDPC_HContext ctx, uint32_t destAddr, uint16_t destPort,
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uint32_t isChecked, void *data, uint32_t size);
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int UDPC_set_accept_new_connections(UDPC_HContext ctx, int isAccepting);
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/// addr must be in network byte order (big-endian), port must be in native byte order
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int UDPC_drop_connection(UDPC_HContext ctx, uint32_t addr, uint16_t port);
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/// addr must be in network byte order, drops all connections to specified addr
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int UDPC_drop_connection_addr(UDPC_HContext ctx, uint32_t addr);
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uint32_t UDPC_set_protocol_id(UDPC_HContext ctx, uint32_t id);
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UDPC_LoggingType set_logging_type(UDPC_HContext ctx, UDPC_LoggingType loggingType);
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UDPC_PacketInfo UDPC_get_received(UDPC_HContext ctx);
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/// addr must be in network byte order
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const char *UDPC_atostr(UDPC_HContext ctx, uint32_t addr);
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/// returns a 4 byte unsigned integer address in network byte order
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uint32_t UDPC_strtoa(const char *addrStr);
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#ifdef __cplusplus
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}
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#endif
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#endif
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