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...
...
...
#define NX_SOURCE_CODE
#include "nx_api.h"
#include "nx_ip.h"
#include "nx_igmp.h"
NX_CALLER_CHECKING_EXTERNS
...
...
UINT _nxe_igmp_multicast_join(NX_IP *ip_ptr, ULONG group_address)
{
#ifndef NX_DISABLE_IPV4
UINT status;
if ((ip_ptr == NX_NULL) || (ip_ptr -> nx_ip_id != NX_IP_ID))
{
return(NX_PTR_ERROR);
}if ((ip_ptr == NX_NULL) || (ip_ptr -> nx_ip_id != NX_IP_ID)) { ... }
if ((group_address & NX_IP_CLASS_D_MASK) != NX_IP_CLASS_D_TYPE)
{
return(NX_IP_ADDRESS_ERROR);
}if ((group_address & NX_IP_CLASS_D_MASK) != NX_IP_CLASS_D_TYPE) { ... }
if (!ip_ptr -> nx_ip_igmp_packet_receive)
{
return(NX_NOT_ENABLED);
}if (!ip_ptr -> nx_ip_igmp_packet_receive) { ... }
/* ... */
if (ip_ptr -> nx_ip_interface[0].nx_interface_valid == NX_FALSE)
{
return(NX_INVALID_INTERFACE);
}if (ip_ptr -> nx_ip_interface[0].nx_interface_valid == NX_FALSE) { ... }
NX_THREADS_ONLY_CALLER_CHECKING
status = _nx_igmp_multicast_join(ip_ptr, group_address);
return(status);/* ... */
#else
NX_PARAMETER_NOT_USED(ip_ptr);
NX_PARAMETER_NOT_USED(group_address);
return(NX_NOT_SUPPORTED);/* ... */
#endif
}{ ... }