struct PP_Var
ppb_url_util_dev_resolve_relative_to_url(struct PP_Var base_url, struct PP_Var relative_string,
struct PP_URLComponents_Dev *components)
{
reset_components(components);
struct PP_Var var = PP_MakeNull();
if (base_url.type != PP_VARTYPE_STRING) {
trace_warning("%s, base_url is not a string\n", __func__);
return PP_MakeNull();
}
if (relative_string.type != PP_VARTYPE_STRING) {
trace_warning("%s, relative_string is not a string\n", __func__);
return PP_MakeNull();
}
const char *s_base_url = ppb_var_var_to_utf8(base_url, NULL);
const char *s_relative_string = ppb_var_var_to_utf8(relative_string, NULL);
UriParserStateA ups;
UriUriA uri_base, uri_rel, uri_result;
ups.uri = &uri_base;
if (uriParseUriA(&ups, s_base_url) != URI_SUCCESS) {
trace_warning("%s, can't parse s_base_url\n", __func__);
goto err_1;
}
ups.uri = &uri_rel;
if (uriParseUriA(&ups, s_relative_string) != URI_SUCCESS) {
trace_warning("%s, can't parse s_relative_string\n", __func__);
goto err_2;
}
if (uriAddBaseUriA(&uri_result, &uri_rel, &uri_base) != URI_SUCCESS) {
trace_warning("%s, can't merge base and rel\n", __func__);
goto err_3;
}
int len;
uriToStringCharsRequiredA(&uri_result, &len);
len++;
char *str = malloc(len);
uriToStringA(str, &uri_result, len, NULL);
var = ppb_var_var_from_utf8_z(str);
free(str);
if (components)
parse_url_string(str, components);
err_3: uriFreeUriMembersA(&uri_result);
err_2: uriFreeUriMembersA(&uri_rel);
err_1: uriFreeUriMembersA(&uri_base);
return var;
}
struct PP_Var nspawn_send_request(struct PP_Var req_var) {
/*
* naclprocess.js is required in order send requests to JavaScript.
* If NACL_PROCESS is not set in the environment then we assume it is
* not present and exit early. Without this check we would block forever
* waiting for a response for the JavaScript side.
*
* Only check this once per process, as some programs (emacs)
* engage in manipulation of the environment that may not be safely
* read at all times.
*/
static int checked_for_nacl_process = 0;
if (!checked_for_nacl_process) {
const char* naclprocess = getenv("NACL_PROCESS");
if (naclprocess == NULL) {
fprintf(stderr, "nspawn_send_request called without NACL_PROCESS set\n");
return PP_MakeNull();
}
checked_for_nacl_process = 1;
}
int64_t id = get_request_id();
char req_id[64];
sprintf(req_id, "%lld", id);
nspawn_dict_setstring(req_var, "id", req_id);
struct NaClSpawnReply reply;
pthread_mutex_init(&reply.mu, NULL);
pthread_cond_init(&reply.cond, NULL);
PSEventRegisterMessageHandler(req_id, &handle_reply, &reply);
PSInterfaceMessaging()->PostMessage(PSGetInstanceId(), req_var);
nspawn_var_release(req_var);
pthread_mutex_lock(&reply.mu);
/*
* Wait for response for JavaScript. This can block for an unbounded amount
* of time (e.g. waiting for a response to waitpid).
*/
int error = pthread_cond_wait(&reply.cond, &reply.mu);
pthread_mutex_unlock(&reply.mu);
pthread_cond_destroy(&reply.cond);
pthread_mutex_destroy(&reply.mu);
PSEventRegisterMessageHandler(req_id, NULL, &reply);
if (error != 0) {
fprintf(stderr, "nspawn_send_request: pthread_cond_timedwait: %s\n",
strerror(error));
return PP_MakeNull();
}
return reply.result_var;
}
struct PP_Var
read_from_sq_to_browser(struct PP_Var (*func)(const char* str, int32_t size))
{
int err = 0;
int32_t size;
pthread_mutex_lock(&s2b.mutex);
if (!s2b.is_full && s2b.free_end == s2b.free_start) {
err = 1;
}
if (!err) {
int first_part_size, second_part_size;
size = s2b.buffer[s2b.free_end/4];
s2b.free_end += 4;
if (s2b.free_end == s2b.capacity) {
s2b.free_end = 0;
}
first_part_size = (size < s2b.capacity - s2b.free_end)
? size : s2b.capacity - s2b.free_end;
second_part_size = size - first_part_size > 0 ? size - first_part_size : 0;
memcpy(tmp_buffer, &s2b.buffer[s2b.free_end/4], size);
s2b.free_end += CEIL4(first_part_size);
if (second_part_size > 0) {
s2b.free_end = 0;
memcpy(tmp_buffer + first_part_size, &s2b.buffer[s2b.free_end/4], second_part_size);
s2b.free_end += CEIL4(second_part_size);
}
s2b.is_full = 0;
if (s2b.free_end == s2b.capacity) {
s2b.free_end = 0;
}
}
pthread_mutex_unlock(&s2b.mutex);
if (!err)
return func(tmp_buffer, size);
return PP_MakeNull();
}
static struct PP_Var Instance_GetInstanceObject(PP_Instance pp_instance) {
return PP_MakeNull();
}
