First step towards separate userdata argument

PUBLISHED_FROM=93fe1cc2c5e2513509511a81e5919cbd37056b10

docs/c-api/net.h/mg_add_sock.md

@@ -3,7 +3,9 @@ title: "mg_add_sock()"
 decl_name: "mg_add_sock"
 symbol_kind: "func"
 signature: |
-  struct mg_connection *mg_add_sock(struct mg_mgr *, sock_t, mg_event_handler_t);
+  struct mg_connection *mg_add_sock(struct mg_mgr *mgr, sock_t sock,
+                                    MG_CB(mg_event_handler_t handler,
+                                          void *user_data);
 ---
 
 Creates a connection, associates it with the given socket and event handler

docs/c-api/net.h/mg_add_sock_opt.md

@@ -3,9 +3,9 @@ title: "mg_add_sock_opt()"
 decl_name: "mg_add_sock_opt"
 symbol_kind: "func"
 signature: |
-  struct mg_connection *mg_add_sock_opt(struct mg_mgr *, sock_t,
-                                        mg_event_handler_t,
-                                        struct mg_add_sock_opts);
+  struct mg_connection *mg_add_sock_opt(struct mg_mgr *mgr, sock_t sock,
+                                        MG_CB(mg_event_handler_t handler,
+                                              void *user_data);
 ---
 
 Creates a connection, associates it with the given socket and event handler

docs/c-api/net.h/mg_bind.md

@@ -3,8 +3,9 @@ title: "mg_bind()"
 decl_name: "mg_bind"
 symbol_kind: "func"
 signature: |
-  struct mg_connection *mg_bind(struct mg_mgr *, const char *,
-                                mg_event_handler_t);
+  struct mg_connection *mg_bind(struct mg_mgr *mgr, const char *address,
+                                MG_CB(mg_event_handler_t handler,
+                                      void *user_data);
 ---
 
 Creates a listening connection.

docs/c-api/net.h/mg_bind_opt.md

@@ -4,8 +4,8 @@ decl_name: "mg_bind_opt"
 symbol_kind: "func"
 signature: |
   struct mg_connection *mg_bind_opt(struct mg_mgr *mgr, const char *address,
-                                    mg_event_handler_t handler,
-                                    struct mg_bind_opts opts);
+                                    MG_CB(mg_event_handler_t handler,
+                                          void *user_data);
 ---
 
 Creates a listening connection.

docs/c-api/net.h/mg_broadcast.md

@@ -3,7 +3,8 @@ title: "mg_broadcast()"
 decl_name: "mg_broadcast"
 symbol_kind: "func"
 signature: |
-  void mg_broadcast(struct mg_mgr *, mg_event_handler_t func, void *, size_t);
+  void mg_broadcast(struct mg_mgr *mgr, mg_event_handler_t cb, void *data,
+                    size_t len);
 ---
 
 Passes a message of a given length to all connections.

docs/c-api/net.h/mg_connect.md

@@ -4,7 +4,8 @@ decl_name: "mg_connect"
 symbol_kind: "func"
 signature: |
   struct mg_connection *mg_connect(struct mg_mgr *mgr, const char *address,
-                                   mg_event_handler_t handler);
+                                   MG_CB(mg_event_handler_t handler,
+                                         void *user_data);
 ---
 
 Connects to a remote host.

docs/c-api/net.h/mg_connect_opt.md

@@ -4,8 +4,8 @@ decl_name: "mg_connect_opt"
 symbol_kind: "func"
 signature: |
   struct mg_connection *mg_connect_opt(struct mg_mgr *mgr, const char *address,
-                                       mg_event_handler_t handler,
-                                       struct mg_connect_opts opts);
+                                       MG_CB(mg_event_handler_t handler,
+                                             void *user_data);
 ---
 
 Connects to a remote host.

docs/c-api/net.h/mg_event_handler_t.md

@@ -4,7 +4,7 @@ decl_name: "mg_event_handler_t"
 symbol_kind: "typedef"
 signature: |
   typedef void (*mg_event_handler_t)(struct mg_connection *nc, int ev,
-                                     void *ev_data);
+                                     void *ev_data MG_UD_ARG(void *user_data));
 ---
 
 Callback function (event handler) prototype. Must be defined by the user.

docs/c-api/net.h/mg_next.md

@@ -3,7 +3,7 @@ title: "mg_next()"
 decl_name: "mg_next"
 symbol_kind: "func"
 signature: |
-  struct mg_connection *mg_next(struct mg_mgr *, struct mg_connection *);
+  struct mg_connection *mg_next(struct mg_mgr *mgr, struct mg_connection *c);
 ---
 
 Iterates over all active connections.