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Add thread support to HTTPRequest, changed assetlib to use it.

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This commit is contained in:
Juan Linietsky
2016-07-24 16:09:43 -03:00
parent 85f365bbff
commit ab93fd1af9
3 changed files with 102 additions and 26 deletions
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108
scene/main/http_request.cpp
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@@ -105,6 +105,9 @@ Error HTTPRequest::request(const String& p_url, const Vector<String>& p_custom_h
}
Error err = _parse_url(p_url);
if (err)
return err;
validate_ssl=p_ssl_validate_domain;
bool has_user_agent=false;
@@ -127,19 +130,52 @@ Error HTTPRequest::request(const String& p_url, const Vector<String>& p_custom_h
headers.push_back("Accept: */*");
}
requesting=true;
err = _request();
if (use_threads) {
thread_done=false;
thread_request_quit=false;
client->set_blocking_mode(true);
thread=Thread::create(_thread_func,this);
} else {
client->set_blocking_mode(false);
err = _request();
if (err!=OK) {
call_deferred("_request_done",RESULT_CANT_CONNECT,0,StringArray(),ByteArray());
return ERR_CANT_CONNECT;
}
if (err==OK) {
set_process(true);
requesting=true;
}
return err;
return OK;
}
void HTTPRequest::_thread_func(void *p_userdata) {
HTTPRequest *hr = (HTTPRequest*)p_userdata;
Error err = hr->_request();
if (err!=OK) {
hr->call_deferred("_request_done",RESULT_CANT_CONNECT,0,StringArray(),ByteArray());
} else {
while(!hr->thread_request_quit) {
bool exit = hr->_update_connection();
if (exit)
break;
OS::get_singleton()->delay_usec(1);
}
}
hr->thread_done=true;
}
void HTTPRequest::cancel_request() {
if (!requesting)
@@ -147,6 +183,11 @@ void HTTPRequest::cancel_request() {
if (!use_threads) {
set_process(false);
} else {
thread_request_quit=true;
Thread::wait_to_finish(thread);
memdelete(thread);
thread=NULL;
}
if (file) {
@@ -167,7 +208,7 @@ void HTTPRequest::cancel_request() {
bool HTTPRequest::_handle_response(bool *ret_value) {
if (!client->has_response()) {
call_deferred("emit_signal","request_completed",RESULT_NO_RESPONSE,0,StringArray(),ByteArray());
call_deferred("_request_done",RESULT_NO_RESPONSE,0,StringArray(),ByteArray());
*ret_value=true;
return true;
}
@@ -187,7 +228,7 @@ bool HTTPRequest::_handle_response(bool *ret_value) {
//redirect
if (max_redirects>=0 && redirections>=max_redirects) {
call_deferred("emit_signal","request_completed",RESULT_REDIRECT_LIMIT_REACHED,response_code,response_headers,ByteArray());
call_deferred("_request_done",RESULT_REDIRECT_LIMIT_REACHED,response_code,response_headers,ByteArray());
*ret_value=true;
return true;
}
@@ -239,7 +280,8 @@ bool HTTPRequest::_update_connection() {
switch( client->get_status() ) {
case HTTPClient::STATUS_DISCONNECTED: {
return true; //end it, since it's doing something
call_deferred("_request_done",RESULT_CANT_CONNECT,0,StringArray(),ByteArray());
return true; //end it, since it's doing something
} break;
case HTTPClient::STATUS_RESOLVING: {
client->poll();
@@ -247,7 +289,7 @@ bool HTTPRequest::_update_connection() {
return false;
} break;
case HTTPClient::STATUS_CANT_RESOLVE: {
call_deferred("emit_signal","request_completed",RESULT_CANT_RESOLVE,0,StringArray(),ByteArray());
call_deferred("_request_done",RESULT_CANT_RESOLVE,0,StringArray(),ByteArray());
return true;
} break;
@@ -258,7 +300,7 @@ bool HTTPRequest::_update_connection() {
} break; //connecting to ip
case HTTPClient::STATUS_CANT_CONNECT: {
call_deferred("emit_signal","request_completed",RESULT_CANT_CONNECT,0,StringArray(),ByteArray());
call_deferred("_request_done",RESULT_CANT_CONNECT,0,StringArray(),ByteArray());
return true;
} break;
@@ -276,17 +318,17 @@ bool HTTPRequest::_update_connection() {
return ret_value;
call_deferred("emit_signal","request_completed",RESULT_SUCCESS,response_code,response_headers,ByteArray());
call_deferred("_request_done",RESULT_SUCCESS,response_code,response_headers,ByteArray());
return true;
}
if (got_response && body_len<0) {
//chunked transfer is done
call_deferred("emit_signal","request_completed",RESULT_SUCCESS,response_code,response_headers,body);
call_deferred("_request_done",RESULT_SUCCESS,response_code,response_headers,body);
return true;
}
call_deferred("emit_signal","request_completed",RESULT_CHUNKED_BODY_SIZE_MISMATCH,response_code,response_headers,ByteArray());
call_deferred("_request_done",RESULT_CHUNKED_BODY_SIZE_MISMATCH,response_code,response_headers,ByteArray());
return true;
//request migh have been done
} else {
@@ -294,7 +336,7 @@ bool HTTPRequest::_update_connection() {
Error err = client->request(HTTPClient::METHOD_GET,request_string,headers);
if (err!=OK) {
call_deferred("emit_signal","request_completed",RESULT_CONNECTION_ERROR,0,StringArray(),ByteArray());
call_deferred("_request_done",RESULT_CONNECTION_ERROR,0,StringArray(),ByteArray());
return true;
}
@@ -320,7 +362,7 @@ bool HTTPRequest::_update_connection() {
if (!client->is_response_chunked() && client->get_response_body_length()==0) {
call_deferred("emit_signal","request_completed",RESULT_SUCCESS,response_code,response_headers,ByteArray());
call_deferred("_request_done",RESULT_SUCCESS,response_code,response_headers,ByteArray());
return true;
}
@@ -331,7 +373,7 @@ bool HTTPRequest::_update_connection() {
body_len=client->get_response_body_length();
if (body_size_limit>=0 && body_len>body_size_limit) {
call_deferred("emit_signal","request_completed",RESULT_BODY_SIZE_LIMIT_EXCEEDED,response_code,response_headers,ByteArray());
call_deferred("_request_done",RESULT_BODY_SIZE_LIMIT_EXCEEDED,response_code,response_headers,ByteArray());
return true;
}
}
@@ -340,7 +382,8 @@ bool HTTPRequest::_update_connection() {
file=FileAccess::open(download_to_file,FileAccess::WRITE);
if (!file) {
call_deferred("emit_signal","request_completed",RESULT_DOWNLOAD_FILE_CANT_OPEN,response_code,response_headers,ByteArray());
call_deferred("_request_done",RESULT_DOWNLOAD_FILE_CANT_OPEN,response_code,response_headers,ByteArray());
return true;
}
}
}
@@ -356,7 +399,7 @@ bool HTTPRequest::_update_connection() {
ByteArray::Read r=chunk.read();
file->store_buffer(r.ptr(),chunk.size());
if (file->get_error()!=OK) {
call_deferred("emit_signal","request_completed",RESULT_DOWNLOAD_FILE_WRITE_ERROR,response_code,response_headers,ByteArray());
call_deferred("_request_done",RESULT_DOWNLOAD_FILE_WRITE_ERROR,response_code,response_headers,ByteArray());
return true;
}
} else {
@@ -364,18 +407,18 @@ bool HTTPRequest::_update_connection() {
}
if (body_size_limit>=0 && downloaded>body_size_limit) {
call_deferred("emit_signal","request_completed",RESULT_BODY_SIZE_LIMIT_EXCEEDED,response_code,response_headers,ByteArray());
call_deferred("_request_done",RESULT_BODY_SIZE_LIMIT_EXCEEDED,response_code,response_headers,ByteArray());
return true;
}
if (body_len>=0) {
if (downloaded==body_len) {
call_deferred("emit_signal","request_completed",RESULT_SUCCESS,response_code,response_headers,body);
call_deferred("_request_done",RESULT_SUCCESS,response_code,response_headers,body);
return true;
}
/*if (body.size()>=body_len) {
call_deferred("emit_signal","request_completed",RESULT_BODY_SIZE_MISMATCH,response_code,response_headers,ByteArray());
call_deferred("_request_done",RESULT_BODY_SIZE_MISMATCH,response_code,response_headers,ByteArray());
return true;
}*/
}
@@ -384,11 +427,11 @@ bool HTTPRequest::_update_connection() {
} break; // request resulted in body: { } break which must be read
case HTTPClient::STATUS_CONNECTION_ERROR: {
call_deferred("emit_signal","request_completed",RESULT_CONNECTION_ERROR,0,StringArray(),ByteArray());
call_deferred("_request_done",RESULT_CONNECTION_ERROR,0,StringArray(),ByteArray());
return true;
} break;
case HTTPClient::STATUS_SSL_HANDSHAKE_ERROR: {
call_deferred("emit_signal","request_completed",RESULT_SSL_HANDSHAKE_ERROR,0,StringArray(),ByteArray());
call_deferred("_request_done",RESULT_SSL_HANDSHAKE_ERROR,0,StringArray(),ByteArray());
return true;
} break;
@@ -397,17 +440,35 @@ bool HTTPRequest::_update_connection() {
ERR_FAIL_V(false);
}
void HTTPRequest::_request_done(int p_status, int p_code, const StringArray& headers, const ByteArray& p_data) {
cancel_request();
emit_signal("request_completed",p_status,p_code,headers,p_data);
}
void HTTPRequest::_notification(int p_what) {
if (p_what==NOTIFICATION_PROCESS) {
if (use_threads)
return;
bool done = _update_connection();
if (done) {
set_process(false);
//cancel_request(); called from _request done now
}
}
if (p_what==NOTIFICATION_EXIT_TREE) {
if (requesting) {
cancel_request();
}
}
}
void HTTPRequest::set_use_threads(bool p_use) {
@@ -491,6 +552,7 @@ void HTTPRequest::_bind_methods() {
ObjectTypeDB::bind_method(_MD("get_body_size"),&HTTPRequest::get_body_size);
ObjectTypeDB::bind_method(_MD("_redirect_request"),&HTTPRequest::_redirect_request);
ObjectTypeDB::bind_method(_MD("_request_done"),&HTTPRequest::_request_done);
ADD_PROPERTY(PropertyInfo(Variant::BOOL,"use_threads"),_SCS("set_use_threads"),_SCS("is_using_threads"));
ADD_PROPERTY(PropertyInfo(Variant::INT,"body_size_limit",PROPERTY_HINT_RANGE,"-1,2000000000"),_SCS("set_body_size_limit"),_SCS("get_body_size_limit"));
@@ -517,6 +579,7 @@ void HTTPRequest::_bind_methods() {
HTTPRequest::HTTPRequest()
{
thread=NULL;
port=80;
redirections=0;
@@ -530,6 +593,7 @@ HTTPRequest::HTTPRequest()
requesting=false;
client.instance();
use_threads=false;
thread_done=false;
body_size_limit=-1;
file=NULL;
status=HTTPClient::STATUS_DISCONNECTED;