char*
op_builtin_ifelse(struct ccnl_relay_s *ccnl, struct configuration_s *config,
int *restart, int *halt, char *prog, char *pending,
struct stack_s **stack)
{
struct stack_s *h;
int i1=0;
DEBUGMSG(DEBUG, "---to do: OP_IFELSE <%s>\n", prog+10);
h = pop_or_resolve_from_result_stack(ccnl, config);
if (!h) {
*halt = -1;
return ccnl_strdup(prog);
}
if (h->type != STACK_TYPE_INT) {
DEBUGMSG(WARNING, "ifelse requires int as condition");
ccnl_nfn_freeStack(h);
return NULL;
}
i1 = *(int *)h->content;
if (i1) {
struct stack_s *stack = pop_from_stack(&config->argument_stack);
DEBUGMSG(DEBUG, "Execute if\n");
pop_from_stack(&config->argument_stack);
push_to_stack(&config->argument_stack, stack->content,
STACK_TYPE_CLOSURE);
} else {
DEBUGMSG(DEBUG, "Execute else\n");
pop_from_stack(&config->argument_stack);
}
return ccnl_strdup(pending);
}
void
allocAndAdd(struct environment_s **env, char *name, char *cmd)
{
struct closure_s *closure;
closure = new_closure(ccnl_strdup(cmd), NULL);
add_to_environment(env, ccnl_strdup(name), closure);
}
void
ccnl_simu_add_fwd(char node, const char *name, char dstnode)
{
struct ccnl_relay_s *relay = char2relay(node), *dst = char2relay(dstnode);
struct ccnl_forward_s *fwd;
sockunion sun;
char *cp;
DEBUGMSG(TRACE, "ccnl_simu_add_fwd\n");
sun.eth.sll_family = AF_PACKET;
memcpy(sun.eth.sll_addr, dst->ifs[0].addr.eth.sll_addr, ETH_ALEN);
fwd = (struct ccnl_forward_s *) ccnl_calloc(1, sizeof(*fwd));
// fwd->prefix = ccnl_path_to_prefix(name);
cp = ccnl_strdup(name);
fwd->prefix = ccnl_URItoPrefix(cp, theSuite, NULL, NULL);
ccnl_free(cp);
fwd->suite = theSuite;
fwd->face = ccnl_get_face_or_create(relay, 0, &sun.sa, sizeof(sun.eth));
#ifdef USE_FRAG
// fwd->face->frag = ccnl_frag_new(CCNL_FRAG_SEQUENCED2012, 1500);
fwd->face->frag = ccnl_frag_new(CCNL_FRAG_CCNx2013, 1200);
#endif
fwd->face->flags |= CCNL_FACE_FLAGS_STATIC;
fwd->next = relay->fib;
relay->fib = fwd;
}
char*
op_builtin_add(struct ccnl_relay_s *ccnl, struct configuration_s *config,
int *restart, int *halt, char *prog, char *pending,
struct stack_s **stack)
{
int i1=0, i2=0, *h;
DEBUGMSG(DEBUG, "---to do: OP_ADD <%s> pending: %s\n", prog+7, pending);
pop2int();
h = ccnl_malloc(sizeof(int));
*h = i1 + i2;
push_to_stack(stack, h, STACK_TYPE_INT);
return pending ? ccnl_strdup(pending) : NULL;
}
char*
op_builtin_cmpleq(struct ccnl_relay_s *ccnl, struct configuration_s *config,
int *restart, int *halt, char *prog, char *pending,
struct stack_s **stack)
{
int i1=0, i2=0;
char res[1000], *cp;
DEBUGMSG(DEBUG, "---to do: OP_CMPLEQ <%s>\n", pending);
pop2int();
cp = (i2 <= i1) ? "1" : "0";
if (pending)
sprintf(res, "RESOLVENAME(%s);%s", cp, pending);
else
sprintf(res, "RESOLVENAME(%s)", cp);
return ccnl_strdup(res);
}
char*
op_builtin_find(struct ccnl_relay_s *ccnl, struct configuration_s *config,
int *restart, int *halt, char *prog, char *pending,
struct stack_s **stack)
{
int local_search = 0;
struct stack_s *h;
char *cp = NULL;
struct ccnl_prefix_s *prefix;
struct ccnl_content_s *c = NULL;
if (*restart) {
DEBUGMSG(DEBUG, "---to do: OP_FIND restart\n");
*restart = 0;
local_search = 1;
} else {
DEBUGMSG(DEBUG, "---to do: OP_FIND <%s> <%s>\n", prog+7, pending);
h = pop_from_stack(&config->result_stack);
// if (h->type != STACK_TYPE_PREFIX) ...
config->fox_state->num_of_params = 1;
config->fox_state->params = ccnl_malloc(sizeof(struct ccnl_stack_s *));
config->fox_state->params[0] = h;
config->fox_state->it_routable_param = 0;
}
prefix = config->fox_state->params[0]->content;
//check if result is now available
//loop by reentering (with local_search) after timeout of the interest...
DEBUGMSG(DEBUG, "FIND: Checking if result was received\n");
c = ccnl_nfn_local_content_search(ccnl, config, prefix);
if (!c) {
struct ccnl_prefix_s *copy;
struct ccnl_interest_s *interest;
if (local_search) {
DEBUGMSG(INFO, "FIND: no content\n");
return NULL;
}
//Result not in cache, search over the network
// struct ccnl_interest_s *interest = mkInterestObject(ccnl, config, prefix);
copy = ccnl_prefix_dup(prefix);
interest = ccnl_nfn_query2interest(ccnl, ©, config);
DEBUGMSG(DEBUG, "FIND: sending new interest from Face ID: %d\n",
interest->from->faceid);
if (interest)
ccnl_interest_propagate(ccnl, interest);
//wait for content, return current program to continue later
*halt = -1; //set halt to -1 for async computations
return ccnl_strdup(prog);
}
DEBUGMSG(INFO, "FIND: result was found ---> handle it (%s), prog=%s, pending=%s\n", ccnl_prefix_to_path(prefix), prog, pending);
#ifdef USE_NACK
/*
if (!strncmp((char*)c->content, ":NACK", 5)) {
DEBUGMSG(DEBUG, "NACK RECEIVED, going to next parameter\n");
++config->fox_state->it_routable_param;
return prog ? ccnl_strdup(prog) : NULL;
}
*/
#endif
prefix = ccnl_prefix_dup(prefix);
push_to_stack(&config->result_stack, prefix, STACK_TYPE_PREFIX);
if (pending) {
DEBUGMSG(DEBUG, "Pending: %s\n", pending);
cp = ccnl_strdup(pending);
}
return cp;
}
int
main(int argc, char **argv)
{
int opt, max_cache_entries = -1, httpport = -1;
int udpport1 = -1, udpport2 = -1;
char *datadir = NULL, *ethdev = NULL, *crypto_sock_path = NULL;
#ifdef USE_UNIXSOCKET
char *uxpath = CCNL_DEFAULT_UNIXSOCKNAME;
#else
char *uxpath = NULL;
#endif
#ifdef USE_ECHO
char *echopfx = NULL;
#endif
time(&theRelay.startup_time);
srandom(time(NULL));
while ((opt = getopt(argc, argv, "hc:d:e:g:i:o:p:s:t:u:v:x:")) != -1) {
switch (opt) {
case 'c':
max_cache_entries = atoi(optarg);
break;
case 'd':
datadir = optarg;
break;
case 'e':
ethdev = optarg;
break;
case 'g':
inter_pkt_interval = atoi(optarg);
break;
case 'i':
inter_ccn_interval = atoi(optarg);
break;
#ifdef USE_ECHO
case 'o':
echopfx = optarg;
break;
#endif
case 'p':
crypto_sock_path = optarg;
break;
case 's':
suite = ccnl_str2suite(optarg);
if (!ccnl_isSuite(suite))
goto usage;
break;
case 't':
httpport = atoi(optarg);
break;
case 'u':
if (udpport1 == -1)
udpport1 = atoi(optarg);
else
udpport2 = atoi(optarg);
break;
case 'v':
#ifdef USE_LOGGING
if (isdigit(optarg[0]))
debug_level = atoi(optarg);
else
debug_level = ccnl_debug_str2level(optarg);
#endif
break;
case 'x':
uxpath = optarg;
break;
case 'h':
default:
usage:
fprintf(stderr,
"usage: %s [options]\n"
" -c MAX_CONTENT_ENTRIES\n"
" -d databasedir\n"
" -e ethdev\n"
" -g MIN_INTER_PACKET_INTERVAL\n"
" -h\n"
" -i MIN_INTER_CCNMSG_INTERVAL\n"
#ifdef USE_ECHO
" -o echo_prefix\n"
#endif
" -p crypto_face_ux_socket\n"
" -s SUITE (ccnb, ccnx2015, cisco2015, iot2014, ndn2013)\n"
" -t tcpport (for HTML status page)\n"
" -u udpport (can be specified twice)\n"
#ifdef USE_LOGGING
" -v DEBUG_LEVEL (fatal, error, warning, info, debug, verbose, trace)\n"
#endif
#ifdef USE_UNIXSOCKET
" -x unixpath\n"
#endif
, argv[0]);
exit(EXIT_FAILURE);
}
}
opt = ccnl_suite2defaultPort(suite);
if (udpport1 < 0)
udpport1 = opt;
if (httpport < 0)
httpport = opt;
ccnl_core_init();
DEBUGMSG(INFO, "This is ccn-lite-relay, starting at %s",
ctime(&theRelay.startup_time) + 4);
DEBUGMSG(INFO, " ccnl-core: %s\n", CCNL_VERSION);
DEBUGMSG(INFO, " compile time: %s %s\n", __DATE__, __TIME__);
DEBUGMSG(INFO, " compile options: %s\n", compile_string);
DEBUGMSG(INFO, "Abhinav - Modified CCN lite");
// DEBUGMSG(INFO, "using suite %s\n", ccnl_suite2str(suite));
ccnl_relay_config(&theRelay, ethdev, udpport1, udpport2, httpport,
uxpath, suite, max_cache_entries, crypto_sock_path);
if (datadir)
ccnl_populate_cache(&theRelay, datadir);
#ifdef USE_ECHO
if (echopfx) {
struct ccnl_prefix_s *pfx;
char *dup = ccnl_strdup(echopfx);
pfx = ccnl_URItoPrefix(dup, suite, NULL, NULL);
if (pfx)
ccnl_echo_add(&theRelay, pfx);
ccnl_free(dup);
}
#endif
ccnl_io_loop(&theRelay);
while (eventqueue)
ccnl_rem_timer(eventqueue);
ccnl_core_cleanup(&theRelay);
#ifdef USE_HTTP_STATUS
theRelay.http = ccnl_http_cleanup(theRelay.http);
#endif
#ifdef USE_DEBUG_MALLOC
debug_memdump();
#endif
return 0;
}
// executes a ZAM instruction, returns the term to continue working on
char*
ZAM_term(struct ccnl_relay_s *ccnl, struct configuration_s *config,
int *halt, char *dummybuf, int *restart)
{
// struct ccnl_lambdaTerm_s *t;
// char *pending, *p, *cp, *prog = config->prog;
// int len;
char *prog = config->prog;
struct builtin_s *bp;
char *arg, *contd;
int tok;
//pop closure
if (!prog || strlen(prog) == 0) {
if (config->result_stack) {
prog = ccnl_malloc(strlen((char*)config->result_stack->content)+1);
strcpy(prog, config->result_stack->content);
return prog;
}
DEBUGMSG(DEBUG, "no result returned\n");
return NULL;
}
tok = ZAM_nextToken(prog, &arg, &contd);
// TODO: count opening/closing parentheses when hunting for ';' ?
/*
pending = strchr(prog, ';');
p = strchr(prog, '(');
*/
switch (tok) {
case ZAM_ACCESS:
{
struct closure_s *closure = search_in_environment(config->env, arg);
DEBUGMSG(DEBUG, "---to do: access <%s>\n", arg);
if (!closure) {
// TODO: is the following needed? Above search should have
// visited global_dict, already!
closure = search_in_environment(config->global_dict, arg);
if (!closure) {
DEBUGMSG(WARNING, "?? could not lookup var %s\n", arg);
ccnl_free(arg);
return NULL;
}
}
ccnl_free(arg);
closure = new_closure(ccnl_strdup(closure->term), closure->env);
push_to_stack(&config->argument_stack, closure, STACK_TYPE_CLOSURE);
return ccnl_strdup(contd);
}
case ZAM_APPLY:
{
struct stack_s *fct = pop_from_stack(&config->argument_stack);
struct stack_s *par = pop_from_stack(&config->argument_stack);
struct closure_s *fclosure, *aclosure;
char *code;
DEBUGMSG(DEBUG, "---to do: apply\n");
if (!fct || !par)
return NULL;
fclosure = (struct closure_s *) fct->content;
aclosure = (struct closure_s *) par->content;
if (!fclosure || !aclosure)
return NULL;
ccnl_free(fct);
ccnl_free(par);
code = aclosure->term;
if (config->env)
ccnl_nfn_releaseEnvironment(&config->env);
config->env = aclosure->env;
ccnl_free(aclosure);
push_to_stack(&config->argument_stack, fclosure, STACK_TYPE_CLOSURE);
if (contd)
sprintf(dummybuf, "%s;%s", code, contd);
else
strcat(dummybuf, code);
ccnl_free(code);
return ccnl_strdup(dummybuf);
}
case ZAM_CALL:
{
struct stack_s *h = pop_or_resolve_from_result_stack(ccnl, config);
int i, offset, num_params = *(int *)h->content;
char name[5];
DEBUGMSG(DEBUG, "---to do: CALL <%s>\n", arg);
ccnl_free(h->content);
ccnl_free(h);
sprintf(dummybuf, "CLOSURE(FOX);RESOLVENAME(@op(");
// ... @x(@y y x 2 op)));TAILAPPLY";
offset = strlen(dummybuf);
for (i = 0; i < num_params; ++i) {
sprintf(name, "x%d", i);
offset += sprintf(dummybuf+offset, "@%s(", name);
}
for (i = num_params - 1; i >= 0; --i) {
sprintf(name, "x%d", i);
offset += sprintf(dummybuf+offset, " %s", name);
}
offset += sprintf(dummybuf + offset, " %d", num_params);
offset += sprintf(dummybuf+offset, " op");
for (i = 0; i < num_params+2; ++i)
offset += sprintf(dummybuf + offset, ")");
if (contd)
sprintf(dummybuf + offset, ";%s", contd);
return ccnl_strdup(dummybuf);
}
case ZAM_CLOSURE:
{
struct closure_s *closure;
DEBUGMSG(DEBUG, "---to do: closure <%s> (contd=%s)\n", arg, contd);
if (!config->argument_stack && !strncmp(arg, "RESOLVENAME(", 12)) {
char v[500], *c;
int len;
c = strchr(arg+12, ')');
if (!c)
goto normal;
len = c - (arg+12);
memcpy(v, arg+12, len);
v[len] = '\0';
closure = search_in_environment(config->env, v);
if (!closure)
goto normal;
if (!strcmp(closure->term, arg)) {
DEBUGMSG(WARNING, "** detected tail recursion case %s/%s\n",
closure->term, arg);
} else
goto normal;
} else {
normal:
closure = new_closure(arg, config->env);
//configuration->env = NULL;//FIXME new environment?
push_to_stack(&config->argument_stack, closure, STACK_TYPE_CLOSURE);
arg = NULL;
}
if (contd) {
ccnl_free(arg);
return ccnl_strdup(contd);
}
DEBUGMSG(ERROR, "** not implemented, see line %d\n", __LINE__);
return arg;
}
case ZAM_FOX:
return ZAM_fox(ccnl, config, restart, halt, prog, arg, contd);
case ZAM_GRAB:
{
struct stack_s *stack = pop_from_stack(&config->argument_stack);
DEBUGMSG(DEBUG, "---to do: grab <%s>\n", arg);
add_to_environment(&config->env, arg, stack->content);
ccnl_free(stack);
return ccnl_strdup(contd);
}
case ZAM_HALT:
ccnl_nfn_freeStack(config->argument_stack);
//ccnl_nfn_freeStack(config->result_stack);
config->argument_stack = /*config->result_stack =*/ NULL;
*halt = 1;
return ccnl_strdup(contd);
case ZAM_RESOLVENAME:
return ZAM_resolvename(config, dummybuf, arg, contd);
case ZAM_TAILAPPLY:
{
struct stack_s *stack = pop_from_stack(&config->argument_stack);
struct closure_s *closure = (struct closure_s *) stack->content;
char *code = closure->term;
DEBUGMSG(DEBUG, "---to do: tailapply\n");
ccnl_free(stack);
if (contd) //build new term
sprintf(dummybuf, "%s;%s", code, contd);
else
strcpy(dummybuf, code);
if (config->env)
ccnl_nfn_releaseEnvironment(&config->env);
config->env = closure->env; //set environment from closure
ccnl_free(code);
ccnl_free(closure);
return ccnl_strdup(dummybuf);
}
case ZAM_UNKNOWN:
break;
default:
DEBUGMSG(DEBUG, "builtin: %s (%s/%s)\n", bifs[-tok - 1].name, prog, contd);
return bifs[-tok - 1].fct(ccnl, config, restart, halt, prog,
contd, &config->result_stack);
}
ccnl_free(arg);
// iterate through all extension operations
for (bp = op_extensions; bp; bp = bp->next)
if (!strncmp(prog, bp->name, strlen(bp->name)))
return (bp->fct)(ccnl, config, restart, halt, prog,
contd, &config->result_stack);
DEBUGMSG(INFO, "unknown (built-in) command <%s>\n", prog);
return NULL;
}
char*
ZAM_resolvename(struct configuration_s *config, char *dummybuf,
char *arg, char *contd)
{
struct ccnl_lambdaTerm_s *t;
char res[1000], *cp = arg;
int len;
DEBUGMSG(DEBUG, "---to do: resolveNAME <%s>\n", arg);
//function definition
if (!strncmp(cp, "let", 3)) {
int i, end = 0, cp2len, namelength, lambdalen;
char *h, *cp2, *name, *lambda_expr, *resolveterm;
DEBUGMSG(DEBUG, " fct definition: %s\n", cp);
strcpy(res, cp+3);
for (i = 0; i < strlen(res); ++i) {
if (!strncmp(res+i, "endlet", 6)) {
end = i;
break;
}
}
cp2len = strlen(res+end) + strlen("RESOLVENAME()");
h = strchr(cp, '=');
namelength = h - cp;
lambda_expr = ccnl_malloc(strlen(h));
name = ccnl_malloc(namelength);
cp2 = ccnl_malloc(cp2len);
memset(cp2, 0, cp2len);
memset(name, 0, namelength);
memset(lambda_expr, 0, strlen(h));
sprintf(cp2, "RESOLVENAME(%s)", res+end+7); //add 7 to overcome endlet
memcpy(name, cp+3, namelength-3); //copy name without let and endlet
trim(name);
lambdalen = strlen(h)-strlen(cp2)+11-6;
memcpy(lambda_expr, h+1, lambdalen); //copy lambda expression without =
trim(lambda_expr);
resolveterm = ccnl_malloc(strlen("RESOLVENAME()")+strlen(lambda_expr));
sprintf(resolveterm, "RESOLVENAME(%s)", lambda_expr);
add_to_environment(&config->env, name, new_closure(resolveterm, NULL));
ccnl_free(cp);
return strdup(contd);
}
//check if term can be made available, if yes enter it as a var
//try with searching in global env for an added term!
t = ccnl_lambdaStrToTerm(0, &cp, NULL);
ccnl_free(arg);
if (term_is_var(t)) {
char *end = 0;
cp = t->v;
if (isdigit(*cp)) {
// is disgit...
int *integer = ccnl_malloc(sizeof(int));
*integer = strtol(cp, &end, 0);
if (end && *end)
end = 0;
if (end)
push_to_stack(&config->result_stack, integer, STACK_TYPE_INT);
else
ccnl_free(integer);
} else if (*cp == '\'') { // quoted name (constant)
//determine size
struct const_s *con = ccnl_nfn_krivine_str2const(cp);
push_to_stack(&config->result_stack, con, STACK_TYPE_CONST);
end = (char*)1;
} else if (iscontentname(cp)) { // is content...
struct ccnl_prefix_s *prefix;
prefix = ccnl_URItoPrefix(cp, config->suite, NULL, NULL);
push_to_stack(&config->result_stack, prefix, STACK_TYPE_PREFIX);
end = (char*)1;
}
if (end) {
if (contd)
sprintf(res, "TAILAPPLY;%s", contd);
else
sprintf(res, "TAILAPPLY");
} else {
if (contd)
sprintf(res, "ACCESS(%s);TAILAPPLY;%s", t->v, contd);
else
sprintf(res, "ACCESS(%s);TAILAPPLY", t->v);
}
ccnl_lambdaFreeTerm(t);
return ccnl_strdup(res);
}
if (term_is_lambda(t)) {
char *var;
var = t->v;
ccnl_lambdaTermToStr(dummybuf, t->m, 0);
if (contd)
sprintf(res, "GRAB(%s);RESOLVENAME(%s);%s", var, dummybuf, contd);
else
sprintf(res, "GRAB(%s);RESOLVENAME(%s)", var, dummybuf);
ccnl_lambdaFreeTerm(t);
return ccnl_strdup(res);
}
if (term_is_app(t)) {
ccnl_lambdaTermToStr(dummybuf, t->n, 0);
len = sprintf(res, "CLOSURE(RESOLVENAME(%s));", dummybuf);
ccnl_lambdaTermToStr(dummybuf, t->m, 0);
len += sprintf(res+len, "RESOLVENAME(%s)", dummybuf);
if (contd)
len += sprintf(res+len, ";%s", contd);
ccnl_lambdaFreeTerm(t);
return ccnl_strdup(res);
}
return NULL;
}
char*
ZAM_fox(struct ccnl_relay_s *ccnl, struct configuration_s *config,
int *restart, int *halt, char *prog, char *arg, char *contd)
{
int local_search = 0, i;
int parameter_number = 0;
struct ccnl_content_s *c = NULL;
struct ccnl_prefix_s *pref;
struct ccnl_interest_s *interest;
DEBUGMSG(DEBUG, "---to do: FOX <%s>\n", arg);
ccnl_free(arg);
if (*restart) {
*restart = 0;
local_search = 1;
goto recontinue;
}
{
struct stack_s *h;
h = pop_or_resolve_from_result_stack(ccnl, config);
assert(h);
//TODO CHECK IF INT
config->fox_state->num_of_params = *(int*)h->content;
h->next = NULL;
ccnl_nfn_freeStack(h);
}
DEBUGMSG(DEBUG, "NUM OF PARAMS: %d\n", config->fox_state->num_of_params);
config->fox_state->params = ccnl_malloc(sizeof(struct ccnl_stack_s *) *
config->fox_state->num_of_params);
for (i = 0; i < config->fox_state->num_of_params; ++i) {
//pop parameter from stack
config->fox_state->params[i] = pop_from_stack(&config->result_stack);
switch (config->fox_state->params[i]->type) {
case STACK_TYPE_INT:
DEBUGMSG(DEBUG, " info: Parameter %d %d\n", i,
*(int *)config->fox_state->params[i]->content);
break;
case STACK_TYPE_PREFIX:
DEBUGMSG(DEBUG, " info: Parameter %d %s\n", i,
ccnl_prefix_to_path((struct ccnl_prefix_s*)
config->fox_state->params[i]->content));
break;
default:
break;
}
}
//as long as there is a routable parameter: try to find a result
config->fox_state->it_routable_param = 0;
//check if last result is now available
recontinue: //loop by reentering after timeout of the interest...
if (local_search) {
DEBUGMSG(DEBUG, "Checking if result was received\n");
parameter_number = choose_parameter(config);
pref = create_namecomps(ccnl, config, parameter_number,
config->fox_state->params[parameter_number]->content);
// search for a result
c = ccnl_nfn_local_content_search(ccnl, config, pref);
set_propagate_of_interests_to_1(ccnl, pref);
free_prefix(pref);
//TODO Check? //TODO remove interest here?
if (c) {
DEBUGMSG(DEBUG, "Result was found\n");
DEBUGMSG_CFWD(INFO, "data after result was found %.*s\n", c->pkt->contlen, c->pkt->content);
goto handlecontent;
}
}
//result was not delivered --> choose next parameter
++config->fox_state->it_routable_param;
parameter_number = choose_parameter(config);
if (parameter_number < 0)
//no more parameter --> no result found, can try a local computation
goto local_compute;
// create new prefix with name components!!!!
pref = create_namecomps(ccnl, config, parameter_number,
config->fox_state->params[parameter_number]->content);
c = ccnl_nfn_local_content_search(ccnl, config, pref);
if (c) {
free_prefix(pref);
goto handlecontent;
}
// Result not in cache, search over the network
// pref2 = ccnl_prefix_dup(pref);
interest = ccnl_nfn_query2interest(ccnl, &pref, config);
if (pref)
free_prefix(pref);
if (interest) {
ccnl_interest_propagate(ccnl, interest);
DEBUGMSG(DEBUG, " new interest's face is %d\n", interest->from->faceid);
}
// wait for content, return current program to continue later
*halt = -1; //set halt to -1 for async computations
return ccnl_strdup(prog);
local_compute:
if (config->local_done)
return NULL;
config->local_done = 1;
pref = ccnl_nfnprefix_mkComputePrefix(config, config->suite);
DEBUGMSG(DEBUG, "Prefix local computation: %s\n",
ccnl_prefix_to_path(pref));
interest = ccnl_nfn_query2interest(ccnl, &pref, config);
if (pref)
free_prefix(pref);
if (interest)
ccnl_interest_propagate(ccnl, interest);
handlecontent: //if result was found ---> handle it
if (c) {
#ifdef USE_NACK
if (!strncmp((char*)c->pkt->content, ":NACK", 5)) {
DEBUGMSG(DEBUG, "NACK RECEIVED, going to next parameter\n");
++config->fox_state->it_routable_param;
return prog ? ccnl_strdup(prog) : NULL;
}
#endif
int isANumber = 1, i = 0;
for(i = 0; i < c->pkt->contlen; ++i){
if(!isdigit(c->pkt->content[i])){
isANumber = 0;
break;
}
}
if (isANumber){
int *integer = ccnl_malloc(sizeof(int));
*integer = strtol((char*)c->pkt->content, 0, 0);
push_to_stack(&config->result_stack, integer, STACK_TYPE_INT);
} else {
struct prefix_mapping_s *mapping;
struct ccnl_prefix_s *name =
create_prefix_for_content_on_result_stack(ccnl, config);
push_to_stack(&config->result_stack, name, STACK_TYPE_PREFIX);
mapping = ccnl_malloc(sizeof(struct prefix_mapping_s));
mapping->key = ccnl_prefix_dup(name); //TODO COPY
mapping->value = ccnl_prefix_dup(c->pkt->pfx);
DBL_LINKED_LIST_ADD(config->fox_state->prefix_mapping, mapping);
DEBUGMSG(DEBUG, "Created a mapping %s - %s\n",
ccnl_prefix_to_path(mapping->key),
ccnl_prefix_to_path(mapping->value));
}
}
DEBUGMSG(DEBUG, " FOX continuation: %s\n", contd);
return ccnl_strdup(contd);
}
