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angelus

1.0.0
1.0.1 1.0.0 0.0.2 0.0.1

Elixir ephemeris library backed by NAIF CSPICE and JPL kernels.

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angelus native src io packet.h
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native/src/io/packet.h 

/*

 * packet.h — length-prefixed JSON framing for angelus_worker <-> Elixir Port.

 *

 * Frame format (big-endian):

 *   [4 bytes: uint32 length][length bytes: UTF-8 JSON]

 */



#ifndef ANGELUS_IO_PACKET_H

#define ANGELUS_IO_PACKET_H



#include <stdint.h>



/* Maximum accepted JSON payload size: 4 MB. */

#define PACKET_MAX_PAYLOAD (4 * 1024 * 1024)



/* Returns a heap-allocated NUL-terminated payload. Caller must free(). */

char *read_packet(void);



/* Writes one length-prefixed frame to stdout. Returns 0 on success. */

int write_packet(const char *json, uint32_t length);



#endif /* ANGELUS_IO_PACKET_H */