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lxi_discover(3) C Library Functions lxi_discover(3) NAME lxi_discover - search for LXI devices on network SYNOPSIS #include <lxi.h> int lxi_discover(lxi_info_t *info, int timeout, lxi_discover_t type); DESCRIPTION The lxi_discover() function searches for LXI devices or services on the local network using VXI-11 or mDNS/DNS-SD respectively. Which discover type is used is defined as follows: typedef enum { DISCOVER_VXI11, DISCOVER_MDNS } lxi_discover_t; During the discover operation events and results are returned by call- backs registered via the info structure, defined as follows: typedef struct { void (*broadcast)(char *address, char *interface); void (*device)(char *address, char *id); void (*service)(char *address, char *id, char *service, int port); } lxi_info_t; The broadcast callback is called whenever a new network interface is searched (DISCOVER_VXI11 only). The device callback is called whenever a new LXI device is found (DIS- COVER_VXI11 only). The service callback is called whenever a new LXI service is found (DISCOVER_MDNS only). The timeout is in milliseconds. RETURN VALUE Upon successful completion lxi_discover() returns LXI_OK , or LXI_ERROR if an error occurred. EXAMPLE The following example searches for LXI devices using VXI-11 and prints the ID and IP addresses of found devices: #include <stdio.h> #include <lxi.h> void broadcast(char *address, char *interface) { printf("Broadcasting on interface %s\n", interface); } void device(char *address, char *id) { printf(" Found %s on address %s\n", id, address); } int main() { lxi_info_t info; // Initialize LXI library lxi_init(); // Set up search information callbacks info.broadcast = &broadcast; info.device = &device; printf("Searching for LXI devices - please wait...\n"); // Search for LXI devices, 1 second timeout lxi_discover(&info, 1000, DISCOVER_VXI11); return 0; } SEE ALSO lxi_discover_if(3) lxi_init(3) lxi_open(3), lxi_close(3) lxi_re- ceive(3), lxi_disconnect(3), liblxi 1.18 2022-09-28 lxi_discover(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO
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