Add DN NET2

This commit is contained in:
doylet 2025-07-16 19:25:25 +10:00
parent f66856dae6
commit 93e54a6e32
2 changed files with 702 additions and 0 deletions

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#define DN_NET2_CURL_CPP
#include "../dn_base_inc.h"
#include "../dn_os_inc.h"
#include "dn_net2_curl.h"
static void DN_NET2_MarkRequestDone_(DN_NET2Core *net, DN_NET2RequestInternal *request)
{
for (DN_OS_MutexScope(&net->free_or_done_mutex))
DN_DLList_Append(net->done_list, request);
DN_OS_SemaphoreIncrement(&net->completion_sem, 1);
DN_OS_SemaphoreIncrement(&request->completion_sem, 1);
}
static DN_NET2Response DN_NET2_WaitForAnyResponse(DN_NET2Core *net, DN_Arena *arena, DN_U32 timeout_ms)
{
DN_NET2Response result = {};
DN_OSSemaphoreWaitResult wait = DN_OS_SemaphoreWait(&net->completion_sem, timeout_ms);
if (wait == DN_OSSemaphoreWaitResult_Success) {
for (DN_OS_MutexScope(&net->free_or_done_mutex)) {
DN_NET2RequestInternal *request = nullptr;
DN_DLList_Dequeue(net->done_list, request);
DN_Assert(request);
// NOTE: Fill in the result
DN_NET2ResponseInternal const *response = &request->response;
result.request = {DN_CAST(DN_U64) request};
result.success = response->status != DN_NET2RequestStatus_Error;
result.ws_type = response->ws_type;
result.http_status = response->http_status;
result.body = DN_Str8Builder_Build(&response->body, arena);
if (response->error.size)
result.error = DN_Str8_Copy(arena, response->error);
// NOTE: Deallocate the memory used in the request
DN_Arena_PopTo(&request->arena, request->start_response_arena_pos);
request->response.body = DN_Str8Builder_Init(&request->arena);
// NOTE: For websocket requests, notify the NET thread we've read data from it and it can go
// back to polling the socket for more data
if (request->type == DN_NET2RequestType_WS && request->response.status != DN_NET2RequestStatus_Error) {
DN_NET2RingEvent event = {};
event.type = DN_NET2RingEventType_ReceivedWSReceipt;
event.request = {DN_CAST(DN_U64)request};
for (DN_OS_MutexScope(&net->ring_mutex))
DN_Ring_WriteStruct(&net->ring, &event);
curl_multi_wakeup(net->curlm);
}
}
}
return result;
}
static DN_NET2Response DN_NET2_WaitForResponse(DN_NET2Core *net, DN_NET2Request request, DN_Arena *arena, DN_U32 timeout_ms)
{
DN_NET2Response result = {};
if (request.handle != 0) {
DN_NET2RequestInternal *request_ptr = DN_CAST(DN_NET2RequestInternal *) request.handle;
DN_OSSemaphoreWaitResult wait = DN_OS_SemaphoreWait(&request_ptr->completion_sem, timeout_ms);
if (wait == DN_OSSemaphoreWaitResult_Success) {
// NOTE: Fill in the result
DN_NET2ResponseInternal const *response = &request_ptr->response;
result.request = request;
result.success = response->status != DN_NET2RequestStatus_Error;
result.ws_type = response->ws_type;
result.http_status = response->http_status;
result.body = DN_Str8Builder_Build(&response->body, arena);
if (response->error.size)
result.error = DN_Str8_Copy(arena, response->error);
// NOTE: Deallocate the memory used in the request
DN_Arena_PopTo(&request_ptr->arena, request_ptr->start_response_arena_pos);
request_ptr->response.body = DN_Str8Builder_Init(&request_ptr->arena);
// NOTE: Decrement the global completion tracking semaphore (this is so that if you waited on
// the net object's semaphore, you don't get a phantom wakeup because this function already
// consumed it).
DN_OSSemaphoreWaitResult net_wait_result = DN_OS_SemaphoreWait(&net->completion_sem, 0 /*timeout_ms*/);
DN_AssertF(net_wait_result == DN_OSSemaphoreWaitResult_Success, "Wait result was: %zu", DN_CAST(DN_USize)net_wait_result);
// NOTE: Remove the request from the done list
for (DN_OS_MutexScope(&net->free_or_done_mutex)) {
bool is_in_done_list = false;
for (DN_DLList_ForEach(it, net->done_list)) {
if (it == request_ptr) {
is_in_done_list = true;
break;
}
}
DN_Assert(is_in_done_list);
DN_DLList_Detach(request_ptr);
}
// NOTE: For websocket requests, notify the NET thread we've read data from it and it can go
// back to polling the socket for more data
if (request_ptr->type == DN_NET2RequestType_WS && request_ptr->response.status != DN_NET2RequestStatus_Error) {
DN_NET2RingEvent event = {};
event.type = DN_NET2RingEventType_ReceivedWSReceipt;
event.request = request;
for (DN_OS_MutexScope(&net->ring_mutex))
DN_Ring_WriteStruct(&net->ring, &event);
curl_multi_wakeup(net->curlm);
}
}
}
return result;
}
static void DN_NET2_DeinitRequest(DN_NET2Core *net, DN_NET2Request *request)
{
DN_NET2RingEvent event = {};
event.type = DN_NET2RingEventType_DeinitRequest;
event.request = *request;
*request = {};
for (DN_OS_MutexScope(&net->ring_mutex))
DN_Ring_WriteStruct(&net->ring, &event);
}
static DN_USize DN_NET2_HTTPCallback_(char *payload, DN_USize size, DN_USize count, void *user_data)
{
auto *request = DN_CAST(DN_NET2RequestInternal *) user_data;
DN_USize result = 0;
DN_USize payload_size = size * count;
if (DN_Str8Builder_AppendBytesCopy(&request->response.body, payload, payload_size))
result = payload_size;
return result;
}
static int32_t DN_NET2_ThreadEntryPoint_(DN_OSThread *thread)
{
DN_NET2Core *net = DN_CAST(DN_NET2Core *) thread->user_context;
DN_OS_ThreadSetName(DN_FStr8_ToStr8(&net->curl_thread.name));
for (;;) {
DN_OSTLSTMem tmem = DN_OS_TLSPushTMem(nullptr);
for (bool dequeue_ring = true; dequeue_ring;) {
// NOTE: Dequeue user request
DN_NET2RingEvent event = {};
for (DN_OS_MutexScope(&net->ring_mutex)) {
if (DN_Ring_HasData(&net->ring, sizeof(event)))
DN_Ring_Read(&net->ring, &event, sizeof(event));
}
switch (event.type) {
case DN_NET2RingEventType_Nil: dequeue_ring = false; break;
case DN_NET2RingEventType_DoHTTP: {
DN_NET2RequestInternal *request = DN_CAST(DN_NET2RequestInternal *)event.request.handle;
DN_Assert(request->response.status != DN_NET2RequestStatus_Error);
switch (request->type) {
case DN_NET2RequestType_Nil: {
DN_NET2_MarkRequestDone_(net, request);
DN_InvalidCodePath;
} break;
case DN_NET2RequestType_HTTP: {
DN_Assert(request->response.status == DN_NET2RequestStatus_Nil);
DN_NET2CurlConn *conn = DN_CAST(DN_NET2CurlConn *) request->context;
CURLMcode multi_add = curl_multi_add_handle(net->curlm, conn->curl);
DN_Assert(multi_add == CURLM_OK);
DN_Assert(request->next == nullptr);
DN_Assert(request->prev == nullptr);
DN_DLList_Append(net->http_list, request);
} break;
case DN_NET2RequestType_WS: {
DN_Assert(request->response.status == DN_NET2RequestStatus_HTTPReceived ||
request->response.status == DN_NET2RequestStatus_WSReceived ||
request->response.status == DN_NET2RequestStatus_Nil);
DN_Assert(request->next == nullptr);
DN_Assert(request->prev == nullptr);
if (request->response.status == DN_NET2RequestStatus_Nil) {
DN_NET2CurlConn *conn = DN_CAST(DN_NET2CurlConn *) request->context;
CURLMcode multi_add = curl_multi_add_handle(net->curlm, conn->curl);
DN_Assert(multi_add == CURLM_OK);
DN_DLList_Append(net->http_list, request); // Open the WS connection
} else {
DN_DLList_Append(net->ws_list, request); // Ready to send data through the WS connection
}
} break;
}
} break;
case DN_NET2RingEventType_SendWS: {
DN_Str8 payload = {};
for (DN_OS_MutexScope(&net->ring_mutex)) {
DN_Assert(DN_Ring_HasData(&net->ring, event.send_ws_payload_size));
payload = DN_Str8_Alloc(tmem.arena, event.send_ws_payload_size, DN_ZeroMem_No);
DN_Ring_Read(&net->ring, payload.data, payload.size);
}
DN_U32 curlws_flag = 0;
switch (event.send_ws_type) {
case DN_NET2WSType_Nil: DN_InvalidCodePath; break;
case DN_NET2WSType_Text: curlws_flag = CURLWS_TEXT; break;
case DN_NET2WSType_Binary: curlws_flag = CURLWS_BINARY; break;
case DN_NET2WSType_Close: curlws_flag = CURLWS_CLOSE; break;
case DN_NET2WSType_Ping: curlws_flag = CURLWS_PING; break;
case DN_NET2WSType_Pong: curlws_flag = CURLWS_PONG; break;
}
DN_NET2RequestInternal *request = DN_CAST(DN_NET2RequestInternal *) event.request.handle;
DN_Assert(request->type == DN_NET2RequestType_WS);
DN_Assert(request->response.status == DN_NET2RequestStatus_HTTPReceived || request->response.status == DN_NET2RequestStatus_WSReceived);
DN_NET2CurlConn *conn = DN_CAST(DN_NET2CurlConn *) request->context;
DN_USize sent = 0;
CURLcode send_result = curl_ws_send(conn->curl, payload.data, payload.size, &sent, 0, curlws_flag);
DN_AssertF(send_result == CURLE_OK, "Failed to send: %s", curl_easy_strerror(send_result));
DN_AssertF(sent == payload.size, "Failed to send all bytes (%zu vs %zu)", sent, payload.size);
} break;
case DN_NET2RingEventType_ReceivedWSReceipt: {
DN_NET2RequestInternal *request = DN_CAST(DN_NET2RequestInternal *) event.request.handle;
DN_Assert(request->type == DN_NET2RequestType_WS);
DN_Assert(request->response.status == DN_NET2RequestStatus_WSReceived ||
request->response.status == DN_NET2RequestStatus_HTTPReceived);
DN_Assert(request->next == nullptr);
DN_Assert(request->prev == nullptr);
DN_DLList_Append(net->ws_list, request);
} break;
case DN_NET2RingEventType_DeinitRequest: {
if (event.request.handle != 0) {
DN_NET2RequestInternal *request = DN_CAST(DN_NET2RequestInternal *) event.request.handle;
request->response = {};
DN_Arena_Clear(&request->arena);
DN_OS_SemaphoreDeinit(&request->completion_sem);
DN_NET2CurlConn *conn = DN_CAST(DN_NET2CurlConn *) request->context;
curl_multi_remove_handle(net->curlm, conn->curl);
curl_easy_reset(conn->curl);
curl_slist_free_all(conn->curl_slist);
for (DN_OS_MutexScope(&net->free_or_done_mutex))
DN_DLList_Append(net->free_list, request);
}
} break;
}
}
// NOTE: Pump handles
int running_handles = 0;
CURLMcode perform_result = curl_multi_perform(net->curlm, &running_handles);
if (perform_result != CURLM_OK)
DN_InvalidCodePath;
// NOTE: Check pump result
for (;;) {
int msgs_in_queue = 0;
CURLMsg *msg = curl_multi_info_read(net->curlm, &msgs_in_queue);
if (msg) {
// NOTE: Get request handle
DN_NET2RequestInternal *request = nullptr;
curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, DN_CAST(void **) & request);
DN_Assert(request);
DN_NET2CurlConn *conn = DN_CAST(DN_NET2CurlConn *)request->context;
DN_Assert(conn->curl == msg->easy_handle);
if (msg->data.result == CURLE_OK) {
// NOTE: Get HTTP response code
CURLcode get_result = curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &request->response.http_status);
if (get_result == CURLE_OK) {
request->response.status = DN_NET2RequestStatus_HTTPReceived;
} else {
request->response.error = DN_Str8_InitF(&request->arena, "Failed to get HTTP response status (CURL %d): %s", msg->data.result, curl_easy_strerror(get_result));
request->response.status = DN_NET2RequestStatus_Error;
}
} else {
request->response.status = DN_NET2RequestStatus_Error;
request->response.error = DN_Str8_InitF(&request->arena,
"Net request to '%.*s' failed (CURL %d): %s",
DN_STR_FMT(request->url),
msg->data.result,
curl_easy_strerror(msg->data.result));
}
if (request->type == DN_NET2RequestType_HTTP || request->response.status == DN_NET2RequestStatus_Error) {
// NOTE: Remove the request from the multi handle if we're a HTTP request
// because it typically terminates the connection. In websockets the
// connection remains in the multi-handle to allow you to send and
// receive WS data from it.
//
// If there's an error (either websocket or HTTP) we will also remove the
// connection from the multi handle as it failed. One a connection has
// failed, curl will not poll that connection so there's no point keeping
// it attached to the multi handle.
curl_multi_remove_handle(net->curlm, msg->easy_handle);
}
DN_NET2_MarkRequestDone_(net, request);
}
if (msgs_in_queue == 0)
break;
}
// NOTE: Check websockets
DN_I32 sleep_time_ms = DN_DLList_HasItems(net->ws_list) ? 100 : INT32_MAX;
for (DN_DLList_ForEach(request, net->ws_list)) {
DN_Assert(request->response.status == DN_NET2RequestStatus_HTTPReceived ||
request->response.status == DN_NET2RequestStatus_WSReceived);
CURLcode receive_result = CURLE_OK;
const curl_ws_frame *meta = nullptr;
size_t bytes_read_this_frame = {};
DN_NET2CurlConn *conn = DN_CAST(DN_NET2CurlConn *) request->context;
for (;;) {
// NOTE: Determine WS payload size received
DN_USize bytes_read = 0;
receive_result = curl_ws_recv(conn->curl, nullptr, 0, &bytes_read, &meta);
if (receive_result != CURLE_OK || meta->bytesleft == 0)
break;
// NOTE: Allocate and read
DN_Str8 buffer = DN_Str8_Alloc(&request->arena, meta->bytesleft, DN_ZeroMem_No);
receive_result = curl_ws_recv(conn->curl, buffer.data, buffer.size, &buffer.size, &meta);
bytes_read_this_frame += buffer.size;
DN_Str8Builder_AppendRef(&request->response.body, buffer);
if (meta->flags & CURLWS_TEXT)
request->response.ws_type = DN_NET2WSType_Text;
if (meta->flags & CURLWS_BINARY)
request->response.ws_type = DN_NET2WSType_Binary;
if (meta->flags & CURLWS_PING)
request->response.ws_type = DN_NET2WSType_Ping;
if (meta->flags & CURLWS_PONG)
request->response.ws_type = DN_NET2WSType_Pong;
if (meta->flags & CURLWS_CLOSE)
request->response.ws_type = DN_NET2WSType_Close;
request->response.ws_has_more = meta->flags & CURLWS_CONT || meta->bytesleft > 0;
if (request->response.ws_has_more) {
if (meta->flags & CURLWS_CONT) {
bool is_text_or_binary = request->response.ws_type == DN_NET2WSType_Binary ||
request->response.ws_type == DN_NET2WSType_Text;
DN_Assert(is_text_or_binary);
}
}
if (receive_result != CURLE_OK || bytes_read_this_frame == meta->len)
break;
}
// NOTE: We read all the possible bytes that CURL has received for this
// socket, but, there are more bytes left that we will receive on subsequent
// calls. We will continue to the next request and return back to this one
// when PumpRequests is called again where hopefully that data has arrived.
if (request->response.ws_has_more || receive_result == CURLE_AGAIN) {
if (receive_result == CURLE_AGAIN)
sleep_time_ms = 100;
continue;
}
request->response.status = DN_NET2RequestStatus_WSReceived;
if (receive_result != CURLE_OK) {
request->response.status = DN_NET2RequestStatus_Error;
request->response.error = DN_Str8_InitF(&request->arena,
"Websocket failed to receive data for '%.*s' (CURL %d): %s",
DN_STR_FMT(request->url),
receive_result,
curl_easy_strerror(receive_result));
}
DN_NET2RequestInternal *request_copy = request;
request = request->prev;
DN_NET2_MarkRequestDone_(net, request_copy);
}
curl_multi_poll(net->curlm, nullptr, 0, sleep_time_ms, nullptr);
}
return 0;
}
static void DN_NET2_Init(DN_NET2Core *net, char *ring_base, DN_USize ring_size, char *base, DN_U64 base_size)
{
net->base = base;
net->base_size = base_size;
net->arena = DN_Arena_InitFromBuffer(net->base, net->base_size, DN_ArenaFlags_Nil);
net->ring.base = ring_base;
net->ring.size = ring_size;
net->ring_mutex = DN_OS_MutexInit();
net->completion_sem = DN_OS_SemaphoreInit(0);
net->free_or_done_mutex = DN_OS_MutexInit();
net->curlm = DN_CAST(CURLM *)curl_multi_init();
DN_DLList_InitArena(net->free_list, DN_NET2RequestInternal, &net->arena);
DN_DLList_InitArena(net->http_list, DN_NET2RequestInternal, &net->arena);
DN_DLList_InitArena(net->ws_list, DN_NET2RequestInternal, &net->arena);
DN_DLList_InitArena(net->done_list, DN_NET2RequestInternal, &net->arena);
net->curl_thread.name = DN_FStr8_InitF<64>("NET (CURL)");
DN_OS_ThreadInit(&net->curl_thread, DN_NET2_ThreadEntryPoint_, net);
}
static void DN_NET2_SetupCurlRequest_(DN_NET2RequestInternal *request)
{
DN_NET2CurlConn *conn = DN_CAST(DN_NET2CurlConn *) request->context;
CURL *curl = conn->curl;
curl_easy_setopt(curl, CURLOPT_PRIVATE, request);
// NOTE: Perform request and read all response headers before handing
// control back to app.
curl_easy_setopt(curl, CURLOPT_URL, request->url.data);
curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
// NOTE: Setup response handler
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, DN_NET2_HTTPCallback_);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, request);
// NOTE: Assign HTTP headers
for (DN_ForItSize(it, DN_Str8, request->args.headers, request->args.headers_size))
conn->curl_slist = curl_slist_append(conn->curl_slist, it.data->data);
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, conn->curl_slist);
// NOTE: Setup handle for protocol /////////////////////////////////////////////////////////
switch (request->type) {
case DN_NET2RequestType_Nil: DN_InvalidCodePath; break;
case DN_NET2RequestType_WS: {
curl_easy_setopt(curl, CURLOPT_CONNECT_ONLY, 2L);
} break;
case DN_NET2RequestType_HTTP: {
request->method = DN_Str8_TrimWhitespaceAround(request->method);
DN_Str8 const GET = DN_STR8("GET");
DN_Str8 const POST = DN_STR8("POST");
if (DN_Str8_EqInsensitive(request->method, GET)) {
curl_easy_setopt(curl, CURLOPT_HTTPGET, 1);
} else if (DN_Str8_EqInsensitive(request->method, POST)) {
curl_easy_setopt(curl, CURLOPT_POST, 1);
if (request->args.payload.size > DN_Gigabytes(2))
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE_LARGE, request->args.payload.size);
else
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, request->args.payload.size);
curl_easy_setopt(curl, CURLOPT_COPYPOSTFIELDS, request->args.payload.data);
} else {
DN_InvalidCodePathF("Unimplemented");
}
} break;
}
// NOTE: Handle basic auth
if (request->args.flags & DN_NET2DoHTTPFlags_BasicAuth) {
if (DN_Str8_HasData(request->args.username) && DN_Str8_HasData(request->args.password)) {
DN_Assert(request->args.username.data[request->args.username.size] == 0);
DN_Assert(request->args.password.data[request->args.password.size] == 0);
curl_easy_setopt(curl, CURLOPT_USERNAME, request->args.username.data);
curl_easy_setopt(curl, CURLOPT_PASSWORD, request->args.password.data);
}
}
}
static DN_NET2Request DN_NET2_DoRequest_(DN_NET2Core *net, DN_Str8 url, DN_Str8 method, DN_NET2DoHTTPArgs const *args, DN_NET2RequestType type)
{
DN_Assert(net);
// NOTE: Allocate request
DN_NET2RequestInternal *request = nullptr;
for (DN_OS_MutexScope(&net->free_or_done_mutex))
DN_DLList_Dequeue(net->free_list, request);
if (!request) {
request = DN_Arena_New(&net->arena, DN_NET2RequestInternal, DN_ZeroMem_Yes);
DN_NET2CurlConn *conn = new (request->context) DN_NET2CurlConn;
conn->curl = DN_CAST(CURL *)curl_easy_init();
}
// NOTE: Setup request
DN_NET2Request result = {};
if (request) {
result.handle = DN_CAST(DN_U64) request;
if (!request->arena.curr)
request->arena = DN_Arena_InitFromOSVMem(DN_Megabytes(1), DN_Kilobytes(1), DN_ArenaFlags_Nil);
request->type = type;
request->gen = DN_Max(request->gen + 1, 1);
request->url = DN_Str8_Copy(&request->arena, url);
request->method = DN_Str8_Copy(&request->arena, method);
if (args) {
request->args.flags = args->flags;
request->args.username = DN_Str8_Copy(&request->arena, args->username);
request->args.password = DN_Str8_Copy(&request->arena, args->password);
if (type == DN_NET2RequestType_HTTP)
request->args.payload = DN_Str8_Copy(&request->arena, args->payload);
request->args.headers = DN_Arena_NewArray(&request->arena, DN_Str8, args->headers_size, DN_ZeroMem_No);
DN_Assert(request->args.headers);
if (request->args.headers) {
for (DN_ForItSize(it, DN_Str8, args->headers, args->headers_size))
request->args.headers[it.index] = DN_Str8_Copy(&request->arena, *it.data);
request->args.headers_size = args->headers_size;
}
}
request->response.body = DN_Str8Builder_Init(&request->arena);
request->completion_sem = DN_OS_SemaphoreInit(0);
request->start_response_arena_pos = DN_Arena_Pos(&request->arena);
DN_NET2_SetupCurlRequest_(request);
// NOTE: Submit request to the networking thread's queue
DN_NET2RingEvent event = {};
event.type = DN_NET2RingEventType_DoHTTP;
event.request = result;
for (DN_OS_MutexScope(&net->ring_mutex))
DN_Ring_WriteStruct(&net->ring, &event);
curl_multi_wakeup(net->curlm);
}
return result;
}
static DN_NET2Request DN_NET2_DoHTTP(DN_NET2Core *net, DN_Str8 url, DN_Str8 method, DN_NET2DoHTTPArgs const *args)
{
DN_NET2Request result = DN_NET2_DoRequest_(net, url, method, args, DN_NET2RequestType_HTTP);
return result;
}
static DN_NET2Request DN_NET2_OpenWS(DN_NET2Core *net, DN_Str8 url, DN_NET2DoHTTPArgs const *args)
{
DN_NET2Request result = DN_NET2_DoRequest_(net, url, DN_STR8(""), args, DN_NET2RequestType_WS);
return result;
}
static void DN_NET2_SendWS(DN_NET2Core *net, DN_NET2Request request, DN_Str8 payload, DN_NET2WSType type)
{
DN_Assert(type != DN_NET2WSType_Nil);
DN_NET2RingEvent event = {};
event.type = DN_NET2RingEventType_SendWS;
event.request = request;
event.send_ws_payload_size = payload.size;
event.send_ws_type = type;
for (DN_OS_MutexScope(&net->ring_mutex)) {
DN_Assert(DN_Ring_HasSpace(&net->ring, payload.size));
DN_Ring_WriteStruct(&net->ring, &event);
DN_Ring_Write(&net->ring, payload.data, payload.size);
}
curl_multi_wakeup(net->curlm);
}

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Source/Extra/dn_net2_curl.h Normal file
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#if !defined(DN_NET2_CURL_H)
#define DN_NET2_CURL_H
#include "../dn_base_inc.h"
#include "../dn_os_inc.h"
enum DN_NET2RequestType
{
DN_NET2RequestType_Nil,
DN_NET2RequestType_HTTP,
DN_NET2RequestType_WS,
};
enum DN_NET2RequestStatus
{
DN_NET2RequestStatus_Nil,
DN_NET2RequestStatus_Error,
DN_NET2RequestStatus_HTTPReceived,
DN_NET2RequestStatus_WSReceived,
};
enum DN_NET2WSType
{
DN_NET2WSType_Nil,
DN_NET2WSType_Text,
DN_NET2WSType_Binary,
DN_NET2WSType_Close,
DN_NET2WSType_Ping,
DN_NET2WSType_Pong,
};
struct DN_NET2CurlConn
{
struct CURL *curl;
struct curl_slist *curl_slist;
};
enum DN_NET2DoHTTPFlags
{
DN_NET2DoHTTPFlags_Nil = 0,
DN_NET2DoHTTPFlags_BasicAuth = 1 << 0,
};
struct DN_NET2DoHTTPArgs
{
// NOTE: WS and HTTP args
DN_NET2DoHTTPFlags flags;
DN_Str8 username;
DN_Str8 password;
DN_Str8 *headers;
DN_U16 headers_size;
// NOTE: HTTP args only
DN_Str8 payload;
};
struct DN_NET2ResponseInternal
{
DN_NET2RequestStatus status;
DN_NET2WSType ws_type;
bool ws_has_more;
DN_Str8Builder body;
DN_U32 http_status;
DN_Str8 error;
};
struct DN_NET2Request
{
DN_U64 handle;
};
struct DN_NET2Response
{
DN_NET2Request request;
bool success;
DN_NET2WSType ws_type;
DN_U32 http_status;
DN_Str8 error;
DN_Str8 body;
};
struct DN_NET2RequestInternal
{
// NOTE: Initialised in user thread, then read-only and shared to networking thread until reset
DN_Arena arena;
DN_USize start_response_arena_pos;
DN_NET2RequestType type;
DN_U64 gen;
DN_Str8 url;
DN_Str8 method;
DN_OSSemaphore completion_sem;
DN_NET2DoHTTPArgs args;
DN_NET2ResponseInternal response;
DN_NET2RequestInternal *next;
DN_NET2RequestInternal *prev;
// NOTE: Networking thread only
char context[sizeof(void *) * 2];
};
enum DN_NET2RingEventType
{
DN_NET2RingEventType_Nil,
DN_NET2RingEventType_DoHTTP,
DN_NET2RingEventType_SendWS,
DN_NET2RingEventType_ReceivedWSReceipt,
DN_NET2RingEventType_DeinitRequest,
};
struct DN_NET2RingEvent
{
DN_NET2RingEventType type;
DN_NET2Request request;
DN_USize send_ws_payload_size;
DN_NET2WSType send_ws_type;
};
struct DN_NET2Core
{
// NOTE: User thread only
char *base; // Backing memory for arena
DN_U64 base_size;
DN_Arena arena; // Allocates DN_NET2Request for appending to the user submission queue
// NOTE: Shared w/ user and networking thread
DN_Ring ring;
DN_OSMutex ring_mutex;
DN_OSSemaphore completion_sem;
DN_OSMutex free_or_done_mutex; // Lock for free list and done list
DN_NET2RequestInternal *done_list;
DN_NET2RequestInternal *free_list;
DN_OSThread curl_thread;
// NOTE: Networking thread only
struct CURLM *curlm;
DN_NET2RequestInternal *http_list;
DN_NET2RequestInternal *ws_list;
};
static DN_NET2Response DN_NET2_WaitForAnyResponse(DN_NET2Core *net, DN_Arena *arena, DN_U32 timeout_ms);
static DN_NET2Response DN_NET2_WaitForResponse (DN_NET2Core *net, DN_NET2Request request, DN_Arena *arena, DN_U32 timeout_ms);
static void DN_NET2_DeinitRequest (DN_NET2Core *net, DN_NET2Request *request);
static void DN_NET2_Init (DN_NET2Core *net, char *ring_base, DN_USize ring_size, char *base, DN_U64 base_size);
static DN_NET2Request DN_NET2_DoHTTP (DN_NET2Core *net, DN_Str8 url, DN_Str8 method, DN_NET2DoHTTPArgs const *args);
static DN_NET2Request DN_NET2_OpenWS (DN_NET2Core *net, DN_Str8 url, DN_NET2DoHTTPArgs const *args);
static void DN_NET2_SendWS (DN_NET2Core *net, DN_NET2Request request, DN_Str8 payload, DN_NET2WSType type);
#endif // DN_NET2_CURL_H