55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
#include <pthread.h>
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#include <stdint.h>
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#ifndef UDP_PRIMITIVES_CLIENT_H_
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#define UDP_PRIMITIVES_CLIENT_H_
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/** \brief UDP recv callback prototype. Will be called every time a payload is
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* received on socket.
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* \param port Port on which data had been received
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* \param address Sender Ipv4 address
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* \param buffer Pointer to data (should be freed by user)
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* \param length Length of message received
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* \param arg_p User provided argument (transparent for wrappers)
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* @returns Execution result
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*/
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typedef int (*udp_recv_callback)(uint16_t port,
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uint32_t address,
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uint8_t *buffer,
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uint32_t length,
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void *arg_p);
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typedef struct {
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udp_recv_callback recv_callback;
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pthread_t recv_thread;
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int sd;
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void *arg_p;
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} udp_data_t;
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/** \brief Create new datagram connection-less socket and create new thread
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* for data in downstream.
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* \param ip_addr Local IPv4 address to use
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* \param port Local port to use
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* \param udp_data_p
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* \param recv_callback Pointer to data (should be freed by user)
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* \param arg_p Optionnal argument to pass to recv_callback
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* @returns < 0 on failure or socket descriptor on success
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*/
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int udp_create_connection(char *ip_addr, uint16_t port,
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udp_data_t *udp_data_p,
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udp_recv_callback recv_callback,
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void *arg_p);
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/** \brief Send buffer to remote peer.
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* \param sd socket descriptor to use
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* \param port remote port
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* \param address remote address
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* \param buffer Data buffer to send
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* \param length Buffer length
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* @returns < 0 on failure or socket descriptor on success
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*/
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int udp_send_to(int sd, uint16_t port, uint32_t address,
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const uint8_t *buffer, uint32_t length);
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#endif /* UDP_PRIMITIVES_CLIENT_H_ */
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