asocket *create_remote_socket(unsigned id, atransport *t)
{
asocket *s = (asocket*)calloc(1, sizeof(aremotesocket));
adisconnect* dis = &((aremotesocket*)s)->disconnect;
if (s == NULL) fatal("cannot allocate socket");
s->id = id;
s->enqueue = remote_socket_enqueue;
s->ready = remote_socket_ready;
s->close = remote_socket_close;
s->transport = t;
dis->func = remote_socket_disconnect;
dis->opaque = s;
add_transport_disconnect( t, dis );
D("RS(%d): created\n", s->id);
return s;
}
/* Create an asocket to exchange packets with a remote service through transport
|t|. Where |id| is the socket id of the corresponding service on the other
side of the transport (it is allocated by the remote side and _cannot_ be 0).
Returns a new non-NULL asocket handle. */
asocket *create_remote_socket(unsigned id, atransport *t)
{
if (id == 0) fatal("invalid remote socket id (0)");
asocket* s = reinterpret_cast<asocket*>(calloc(1, sizeof(aremotesocket)));
adisconnect* dis = &reinterpret_cast<aremotesocket*>(s)->disconnect;
if (s == NULL) fatal("cannot allocate socket");
s->id = id;
s->enqueue = remote_socket_enqueue;
s->ready = remote_socket_ready;
s->shutdown = remote_socket_shutdown;
s->close = remote_socket_close;
s->transport = t;
dis->func = remote_socket_disconnect;
dis->opaque = s;
add_transport_disconnect( t, dis );
D("RS(%d): created\n", s->id);
return s;
}
static int install_listener(const char *local_name, const char *connect_to, atransport* transport)
{
alistener *l;
//printf("install_listener('%s','%s')\n", local_name, connect_to);
for(l = listener_list.next; l != &listener_list; l = l->next){
if(strcmp(local_name, l->local_name) == 0) {
char *cto;
/* can't repurpose a smartsocket */
if(l->connect_to[0] == '*') {
return -1;
}
cto = strdup(connect_to);
if(cto == 0) {
return -1;
}
//printf("rebinding '%s' to '%s'\n", local_name, connect_to);
free((void*) l->connect_to);
l->connect_to = cto;
if (l->transport != transport) {
remove_transport_disconnect(l->transport, &l->disconnect);
l->transport = transport;
add_transport_disconnect(l->transport, &l->disconnect);
}
return 0;
}
}
if((l = calloc(1, sizeof(alistener))) == 0) goto nomem;
if((l->local_name = strdup(local_name)) == 0) goto nomem;
if((l->connect_to = strdup(connect_to)) == 0) goto nomem;
l->fd = local_name_to_fd(local_name);
if(l->fd < 0) {
free((void*) l->local_name);
free((void*) l->connect_to);
free(l);
printf("cannot bind '%s'\n", local_name);
return -2;
}
close_on_exec(l->fd);
if(!strcmp(l->connect_to, "*smartsocket*")) {
fdevent_install(&l->fde, l->fd, ss_listener_event_func, l);
} else {
fdevent_install(&l->fde, l->fd, listener_event_func, l);
}
fdevent_set(&l->fde, FDE_READ);
l->next = &listener_list;
l->prev = listener_list.prev;
l->next->prev = l;
l->prev->next = l;
l->transport = transport;
if (transport) {
l->disconnect.opaque = l;
l->disconnect.func = listener_disconnect;
add_transport_disconnect(transport, &l->disconnect);
}
return 0;
nomem:
fatal("cannot allocate listener");
return 0;
}
static install_status_t install_listener(const char *local_name,
const char *connect_to,
atransport* transport,
int no_rebind)
{
alistener *l;
D("install_listener('%s','%s')\n", local_name, connect_to);
for(l = listener_list.next; l != &listener_list; l = l->next){
if(strcmp(local_name, l->local_name) == 0) {
char *cto;
/* can't repurpose a smartsocket */
if(l->connect_to[0] == '*') {
return INSTALL_STATUS_INTERNAL_ERROR;
}
/* can't repurpose a listener if 'no_rebind' is true */
if (no_rebind) {
return INSTALL_STATUS_CANNOT_REBIND;
}
cto = strdup(connect_to);
if(cto == 0) {
return INSTALL_STATUS_INTERNAL_ERROR;
}
D("rebinding '%s' to '%s'\n", local_name, connect_to);
free((void*) l->connect_to);
l->connect_to = cto;
if (l->transport != transport) {
remove_transport_disconnect(l->transport, &l->disconnect);
l->transport = transport;
add_transport_disconnect(l->transport, &l->disconnect);
}
return INSTALL_STATUS_OK;
}
}
if((l = (alistener*)calloc(1, sizeof(alistener))) == 0) goto nomem;
if((l->local_name = strdup(local_name)) == 0) goto nomem;
if((l->connect_to = strdup(connect_to)) == 0) goto nomem;
D("LOCAL NAME: %s\n", local_name);
l->fd = local_name_to_fd(local_name);
D("l->fd: %d\n", l->fd);
if(l->fd < 0) {
free((void*) l->local_name);
free((void*) l->connect_to);
free(l);
D("cannot bind '%s'\n", local_name);
return INSTALL_STATUS_CANNOT_BIND;
}
close_on_exec(l->fd);
if(!strcmp(l->connect_to, "*smartsocket*")) {
fdevent_install(&l->fde, l->fd, ss_listener_event_func, l);
} else {
fdevent_install(&l->fde, l->fd, listener_event_func, l);
}
fdevent_set(&l->fde, FDE_READ);
l->next = &listener_list;
l->prev = listener_list.prev;
l->next->prev = l;
l->prev->next = l;
l->transport = transport;
if (transport) {
l->disconnect.opaque = l;
l->disconnect.func = listener_disconnect;
add_transport_disconnect(transport, &l->disconnect);
}
return INSTALL_STATUS_OK;
nomem:
fatal("cannot allocate listener");
return INSTALL_STATUS_INTERNAL_ERROR;
}
install_status_t install_listener(const char *local_name,
const char *connect_to,
atransport* transport,
int no_rebind)
{
for (alistener* l = listener_list.next; l != &listener_list; l = l->next) {
if (strcmp(local_name, l->local_name) == 0) {
char* cto;
/* can't repurpose a smartsocket */
if(l->connect_to[0] == '*') {
return INSTALL_STATUS_INTERNAL_ERROR;
}
/* can't repurpose a listener if 'no_rebind' is true */
if (no_rebind) {
return INSTALL_STATUS_CANNOT_REBIND;
}
cto = strdup(connect_to);
if(cto == 0) {
return INSTALL_STATUS_INTERNAL_ERROR;
}
free((void*) l->connect_to);
l->connect_to = cto;
if (l->transport != transport) {
remove_transport_disconnect(l->transport, &l->disconnect);
l->transport = transport;
add_transport_disconnect(l->transport, &l->disconnect);
}
return INSTALL_STATUS_OK;
}
}
alistener* listener = reinterpret_cast<alistener*>(
calloc(1, sizeof(alistener)));
if (listener == nullptr) {
goto nomem;
}
listener->local_name = strdup(local_name);
if (listener->local_name == nullptr) {
goto nomem;
}
listener->connect_to = strdup(connect_to);
if (listener->connect_to == nullptr) {
goto nomem;
}
listener->fd = local_name_to_fd(local_name);
if (listener->fd < 0) {
free(listener->local_name);
free(listener->connect_to);
free(listener);
printf("cannot bind '%s'\n", local_name);
return INSTALL_STATUS_CANNOT_BIND;
}
close_on_exec(listener->fd);
if (!strcmp(listener->connect_to, "*smartsocket*")) {
fdevent_install(&listener->fde, listener->fd, ss_listener_event_func,
listener);
} else {
fdevent_install(&listener->fde, listener->fd, listener_event_func,
listener);
}
fdevent_set(&listener->fde, FDE_READ);
listener->next = &listener_list;
listener->prev = listener_list.prev;
listener->next->prev = listener;
listener->prev->next = listener;
listener->transport = transport;
if (transport) {
listener->disconnect.opaque = listener;
listener->disconnect.func = listener_disconnect;
add_transport_disconnect(transport, &listener->disconnect);
}
return INSTALL_STATUS_OK;
nomem:
fatal("cannot allocate listener");
return INSTALL_STATUS_INTERNAL_ERROR;
}