yangkunhenry的专栏

server.c中 从网络端来看，还是一个基于UDP的网络程序 创建socket ctx = get_context(addr_str, port_str); if (!ctx) return -1; ctx = coap_new_context(&addr); c->sockfd = socket(listen_addr->addr.s...

从协议的角度结合代码来看 看下coap_context_t object 在main函数中首先定义了这个结构体变量指针 coap_context_t *ctx; 看下其定义： /** The CoAP stack's global state is stored in a coap_context_t object */ typedef struct coap_context_t ...

coap_context_t中第二个成员变量 struct coap_resource_t *resources; /** The CoAP stack's global state is stored in a coap_context_t object */ typedef struct coap_context_t { coap_opt_filter_t known_option...