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refactor request code

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ading2210 2024-03-12 17:12:02 -04:00
parent 0d7369c77a
commit 1748ca7dd9
12 changed files with 222 additions and 194 deletions
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55
client/javascript/main.js
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@ -43,21 +43,10 @@ function check_loaded(check_websocket) {
}
}
//low level interface with c code
function perform_request(url, params, js_data_callback, js_end_callback, js_headers_callback, body=null) {
let params_str = JSON.stringify(params);
function create_handle(url, js_data_callback, js_end_callback, js_headers_callback) {
let end_callback_ptr;
let data_callback_ptr;
let headers_callback_ptr;
let url_ptr = allocate_str(url);
let params_ptr = allocate_str(params_str);
let body_ptr = null;
let body_length = 0;
if (body) { //assume body is an int8array
body_ptr = allocate_array(body);
body_length = body.length;
}
function end_callback(error) {
Module.removeFunction(end_callback_ptr);
@ -74,29 +63,23 @@ function perform_request(url, params, js_data_callback, js_end_callback, js_head
js_data_callback(chunk);
}
function headers_callback(response_json_ptr) {
let response_json = UTF8ToString(response_json_ptr);
let response_info = JSON.parse(response_json);
if (body_ptr) _free(body_ptr);
_free(url_ptr);
_free(response_json_ptr);
//if the response status is 0, an error occurred,
//but we don't know what it is yet
if (response_info.status !== 0) {
js_headers_callback(response_info);
}
function headers_callback() {
js_headers_callback();
}
end_callback_ptr = Module.addFunction(end_callback, "vi");
headers_callback_ptr = Module.addFunction(headers_callback, "vi");
headers_callback_ptr = Module.addFunction(headers_callback, "v");
data_callback_ptr = Module.addFunction(data_callback, "vii");
let http_handle = _start_request(url_ptr, params_ptr, data_callback_ptr, end_callback_ptr, headers_callback_ptr, body_ptr, body_length);
_free(params_ptr);
let http_handle = c_func(_create_handle, [url, data_callback_ptr, end_callback_ptr, headers_callback_ptr]);
active_requests ++;
return http_handle;
}
function start_request(http_handle) {
_start_request(http_handle);
_tick_request();
active_requests ++;
if (!event_loop) {
event_loop = setInterval(() => {
if (_active_requests() || active_requests) {
@ -108,8 +91,6 @@ function perform_request(url, params, js_data_callback, js_end_callback, js_head
}
}, 0);
}
return http_handle;
}
function create_response(response_data, response_info) {
@ -217,8 +198,9 @@ function perform_request_async(url, params, body) {
}
}
}
function headers_callback(response_info) {
response_obj = create_response(stream, response_info);
function headers_callback() {
let response_json = c_func_str(_http_get_info, [http_handle]);
response_obj = create_response(stream, JSON.parse(response_json));
resolve(response_obj);
}
function finish_callback(error) {
@ -232,8 +214,13 @@ function perform_request_async(url, params, body) {
} //this will only fail if the stream is already errored or closed, which isn't a problem
catch {}
}
let body_length = body ? body.length : 0;
let params_json = JSON.stringify(params);
http_handle = perform_request(url, params, data_callback, finish_callback, headers_callback, body);
http_handle = create_handle(url, data_callback, finish_callback, headers_callback);
c_func(_http_set_options, [http_handle, params_json, body, body_length]);
start_request(http_handle);
});
}