// calogNet.h -- calog network library. // // Registers inline natives that a script of any engine can call: // tcpConnect(host, port) -> handle // tcpListen(port) -> handle // tcpAccept(handle) -> handle (blocks for a client) // tcpSend(handle, data) -> bytesSent (sends all of data) // tcpRecv(handle, maxBytes) -> data (up to maxBytes; nil at end of stream) // tcpClose(handle) // udpOpen(port) -> handle (port 0 = ephemeral) // udpSendTo(handle, host, port, data) -> bytesSent // udpRecvFrom(handle, maxBytes) -> { data, host, port } // udpClose(handle) // Payloads are binary-safe strings. The blocking natives (accept/recv/recvFrom) are INLINE, // so they stall only the calling script's context thread, not the host. Handles are NOT // reference-counted: a socket/host/peer handle belongs to the context that created it, and // using one handle concurrently from two contexts -- or closing it while another context is // mid-operation -- is undefined (use-after-free). IPv4 for v1; // hostname resolution uses getaddrinfo (works in dynamic builds; a fully-static glibc build // cannot resolve names -- connect by IP, or link musl). Backends: TCP/UDP always; ENet is // added behind CALOG_WITH_ENET. #ifndef CALOG_NET_H #define CALOG_NET_H #include "calog.h" // Register the network natives on a runtime. Idempotent across runtimes (they share a // process-wide socket registry). Returns calogOkE or an error. int32_t calogNetRegister(CalogT *calog); // Close any still-open sockets and free the process-wide registry. Call it AFTER the // runtime is torn down (calogDestroy), since it invalidates the natives' state. void calogNetShutdown(void); #endif