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Adding save fetch and response to that fetch and improving documentation.

This commit is contained in:
Sergiotarxz 2023-03-28 19:37:13 +02:00
parent 663a7622ff
commit c8ea2f847b
17 changed files with 418 additions and 47 deletions
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7
include/msgba/client_connection_data.h
View File

@ -7,6 +7,7 @@
#include <pthread.h>
struct msCoreController;
struct msPacketSaveRequestData;
/**
* Struct representing everything needed while a connection is established.
@ -24,6 +25,12 @@ struct msClientConnectionData {
pthread_mutex_t *mutexPressKey;
//! The last time we sent a frame.
struct timespec *lastFrameDate;
//! The array of pending msPacketSaveRequest
struct msPacketSaveRequestData **saveRequests;
//! The mutex to take saveRequests from the beggining.
pthread_mutex_t *mutexSaveRequests;
//! The number of save requests.
size_t saveRequestsLen;
};
/**

3
include/msgba/core_controller.h
View File

@ -1,9 +1,10 @@
#ifndef MS_CORE_CONTROLLER
#define MS_CORE_CONTROLLER
#include <unistd.h>
#include <stdint.h>
#include <mgba/core/core.h>
#include <mgba/core/thread.h>
typedef uint32_t color_t;
#include <msgba/client_connection_data.h>

24
include/msgba/packet.h
View File

@ -9,10 +9,18 @@
* The possible values for a packet id.
*/
enum {
PACKET_GET_HELLO, //! Packet id for get hello.
PACKET_SEND_FRAME, //! Packet id for send frame.
PACKET_GET_KEY_DOWN, //! Packet id for pressing a key.
PACKETS_NUMBER //! The number of recognized packets.
//! Packet id for get hello.
PACKET_GET_HELLO,
//! Packet id for send frame.
PACKET_SEND_FRAME,
//! Packet id for pressing a key.
PACKET_GET_KEY_DOWN,
//! Packet id for requesting a save to the server.
PACKET_GET_SAVE_REQUEST,
//! Packet id for sending a save to the client.
PACKET_SEND_SAVE_RESPONSE,
//! The number of recognized packets.
PACKETS_NUMBER
};
/**
@ -24,20 +32,20 @@ struct msPacket {
//! The size of the data contained in the packet.
size_t size;
//! The data as a byte array. (Not null terminated.)
unsigned char *raw_data;
unsigned char *rawData;
};
/**
* Asks the code to handle a concrete packet comming from a client.
*/
bool
msPacketHandle(struct msPacket *packet, int client_fd, struct msClientConnectionData *const data);
msPacketHandle(struct msPacket *packet, int clientFd, struct msClientConnectionData *const data);
/**
* Creates a new packet object.
*/
struct msPacket *
msPacketNew(const size_t id, const size_t size, unsigned char *raw_data);
msPacketNew(const size_t id, const size_t size, unsigned char *rawData);
/**
* Sends the packet to the client.
@ -56,4 +64,4 @@ msPacketDestroy(struct msPacket **packet);
* Blocks the current thread.
*/
struct msPacket *
msPacketRead(int client_fd);
msPacketRead(int clientFd);

56
include/msgba/packet/save_request.h Normal file
View File

@ -0,0 +1,56 @@
#ifndef MS_PACKET_SAVE_REQUEST
#define MS_PACKET_SAVE_REQUEST
#include <stdio.h>
#include <sys/un.h>
#include <stddef.h>
#include <stdbool.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdint.h>
#include <msgba/client_connection_data.h>
struct msPacket;
struct msPacketSaveRequestData;
/**
* The packet kind received when the client wants a savestate.
*/
struct msPacketSaveRequest {
//! The unique for the client identifier for handling its response.
uint64_t identifier;
};
/**
* Destroys the msPacketSaveRequest
* @param selfPtr The pointer to the pointer to msPacketSaveRequest to null it after this operation.
*/
void
msPacketSaveRequestDestroy(struct msPacketSaveRequest **selfPtr);
/**
* Handles the msPacketSaveRequest
* @param packet The packet containing msPacketSaveRequest, should have PACKET_GET_SAVE_REQUEST as its id.
* @param self This object.
* @param data The session data.
*/
bool
msPacketSaveRequestHandle(const struct msPacket *packet, struct msPacketSaveRequest *self,
struct msClientConnectionData *const data);
/**
* Retrieves the msPacketSaveRequest contained in the packet rawData.
* @param packet The packet containing msPacketSaveRequest, should have PACKET_GET_SAVE_REQUEST as its id.
* @param clientFd The source of this packet.
* @param data The session data.
*/
bool
msPacketSaveRequestGet(const struct msPacket *packet, int clientFd,
struct msClientConnectionData *const data);
/**
* Destroys the struct msPacketSaveRequestData.
* @param selfPtr A pointer to a pointer to this object.
*/
void
msPacketSaveRequestDataDestroy(struct msPacketSaveRequestData **selfPtr);
#endif

43
include/msgba/packet/save_response.h Normal file
View File

@ -0,0 +1,43 @@
#ifndef MS_PACKET_SAVE_RESPONSE
#define MS_PACKET_SAVE_RESPONSE
#include <stdint.h>
#include <stddef.h>
struct msPacket;
/**
* Structure representing a save response response.
*/
struct msPacketSaveResponse {
//! The identifier of the request packet so the client nows that this is the response to that packet.
uint64_t identifier;
//! The length in bytes of the next field.
size_t saveLen;
//! The savestate content.
unsigned char *save;
};
/**
* Ends the life in memory of the send_frame packet.
* @param selfPtr A pointer to a pointer to this object.
*/
void
msPacketSaveResponseDestroy(struct msPacketSaveResponse **selfPtr);
/**
* Creates a new save response packet.
* @param identifier Who this packet responses.
* @param saveLen The size of the save in bytes.
* @param save The bytes representing the savestate.
*/
struct msPacketSaveResponse *
msPacketSaveResponseNew(uint64_t identifier, size_t saveLen, unsigned char *save);
/**
* Converts this object to byte array.
* @param self This object.
* @param len (Output) A pointer to a number containing the resulting size in bytes.
*/
unsigned char *
msPacketSaveResponseSerialize(struct msPacketSaveResponse *const self, size_t *len);
#endif

7
include/msgba/packet/send_frame.h
View File

@ -1,8 +1,9 @@
#ifndef MS_PACKET_SEND_HELLO
#define MS_PACKET_SEND_HELLO
#include <msgba/core_controller.h>
#ifndef MS_PACKET_SEND_FRAME
#define MS_PACKET_SEND_FRAME
#include <stdint.h>
#include <stddef.h>
struct msPacket;
typedef uint32_t color_t;
/**
* Structure representing a video frame packet.

1
include/msgba/player.h
View File

@ -1,5 +1,6 @@
#ifndef MS_PLAYER
#define MS_PLAYER
#include <linux/limits.h>
#include <mgba/flags.h>
#include <mgba/core/core.h>
#include <mgba/core/thread.h>

6
meson.build
View File

@ -1,4 +1,5 @@
project('tech.owlcode.msgba', 'c')
add_global_arguments('-std=c11', '-D_DEFAULT_SOURCE', language : 'c')
inc = include_directories('include')
@ -11,6 +12,8 @@ sources = [
'src/packet/hello.c',
'src/packet/send_frame.c',
'src/packet/key_down.c',
'src/packet/save_request.c',
'src/packet/save_response.c',
'src/client_connection_data.c',
]
@ -19,7 +22,8 @@ inc = [
]
link_arguments = [
'-lmgba'
'-lmgba',
'-lpthread'
]
executable('msgba',

14
src/client_connection_data.c
View File

@ -2,6 +2,7 @@
#include <msgba/core_controller.h>
#include <msgba/client_connection_data.h>
#include <msgba/packet/save_request.h>
struct msClientConnectionData *
msClientConnectionDataNew(size_t numberOfThread, int clientFd) {
@ -11,9 +12,13 @@ msClientConnectionDataNew(size_t numberOfThread, int clientFd) {
data->coreController = NULL;
data->mutexSendPacket = malloc(sizeof *data->mutexSendPacket);
data->mutexPressKey = malloc(sizeof *data->mutexPressKey);
data->mutexSaveRequests = malloc(sizeof *data->mutexSaveRequests);
data->saveRequests = NULL;
data->saveRequestsLen = 0;
data->lastFrameDate = calloc(sizeof *data->lastFrameDate, 1);
pthread_mutex_init(data->mutexSendPacket, NULL);
pthread_mutex_init(data->mutexPressKey, NULL);
pthread_mutex_init(data->mutexSaveRequests, NULL);
return data;
}
@ -24,10 +29,19 @@ msClientConnectionDataDestroy(struct msClientConnectionData **data) {
}
pthread_mutex_destroy((*data)->mutexSendPacket);
pthread_mutex_destroy((*data)->mutexPressKey);
pthread_mutex_destroy((*data)->mutexSaveRequests);
free((*data)->mutexSendPacket);
free((*data)->mutexPressKey);
free((*data)->mutexSaveRequests);
if ((*data)->saveRequests) {
for (size_t i = 0; i<(*data)->saveRequestsLen; i++) {
msPacketSaveRequestDataDestroy(&(*data)->saveRequests[i]);
}
free((*data)->saveRequests);
}
(*data)->mutexSendPacket = NULL;
(*data)->mutexPressKey = NULL;
(*data)->mutexSaveRequests = NULL;
free(*data);
*data = NULL;
}

4
src/core_controller.c
View File

@ -1,3 +1,5 @@
#include <linux/limits.h>
#include <mgba/flags.h>
#include <mgba/core/core.h>
#include <mgba/core/thread.h>
@ -85,7 +87,7 @@ mCoreThreadAfterStart(struct mCoreThread *threadContext) {
struct msClientConnectionData *data = (struct msClientConnectionData *)threadContext->userData;
struct msCoreController *coreController = data->coreController;
struct mCore *core = coreController->threadContext.core;
if (!mCoreLoadStateNamed (core, coreController->saveState, 0)) { // SAVESTATE_SAVEDATA & SAVESTATE_RTC)) {
if (!mCoreLoadStateNamed (core, coreController->saveState, SAVESTATE_SAVEDATA & SAVESTATE_RTC)) {
fprintf(stderr, "Unable to load save state\n");
}
}

2
src/multiplayer_controller.c
View File

@ -1,3 +1,5 @@
#include <linux/limits.h>
#include <mgba/flags.h>
#include <mgba/core/core.h>
#include <mgba/core/thread.h>

45
src/packet.c
View File

@ -4,23 +4,28 @@
#include <msgba/packet.h>
#include <msgba/packet/hello.h>
#include <msgba/packet/key_down.h>
#include <msgba/packet/save_request.h>
#define PRINT_DEBUG(NAME, CLIENT_FD) \
printf ("Received packet %s from client fd %d\n", #NAME, CLIENT_FD);
bool
msPacketHandle(struct msPacket *packet, int client_fd,
msPacketHandle(struct msPacket *packet, int clientFd,
struct msClientConnectionData *const data) {
bool result = false;
printf("Received packet %lu\n", packet->id);
switch (packet->id) {
case PACKET_GET_HELLO:
PRINT_DEBUG(PACKET_HELLO, client_fd);
result = msPacketHelloGet(packet, client_fd, data);
PRINT_DEBUG(PACKET_HELLO, clientFd);
result = msPacketHelloGet(packet, clientFd, data);
break;
case PACKET_GET_KEY_DOWN:
PRINT_DEBUG(PACKET_KEY_DOWN, client_fd);
result = msPacketKeyDownGet(packet, client_fd, data);
PRINT_DEBUG(PACKET_KEY_DOWN, clientFd);
result = msPacketKeyDownGet(packet, clientFd, data);
break;
case PACKET_GET_SAVE_REQUEST:
PRINT_DEBUG(PACKET_SAVE_REQUEST, clientFd);
result = msPacketSaveRequestGet(packet, clientFd, data);
break;
}
return result;
@ -61,7 +66,7 @@ msPacketSend(const struct msPacket *const packet, struct msClientConnectionData
if (!msPacketWrite(fd, (const void *)&size, sizeof packet->size)) {
goto return_ms_packet_send;
}
if (!msPacketWrite(fd, (const void *)packet->raw_data, sizeof *packet->raw_data * packet->size)){
if (!msPacketWrite(fd, (const void *)packet->rawData, sizeof *packet->rawData * packet->size)){
goto return_ms_packet_send;
}
result = true;
@ -71,52 +76,52 @@ return_ms_packet_send:
}
struct msPacket *
msPacketNew(const size_t id, const size_t size, unsigned char *raw_data) {
msPacketNew(const size_t id, const size_t size, unsigned char *rawData) {
struct msPacket *packet = malloc(sizeof *packet);
packet->id = id;
packet->size = size;
packet->raw_data = raw_data;
packet->rawData = rawData;
return packet;
}
void
msPacketDestroy(struct msPacket **packet) {
if ((*packet)->raw_data) {
free((*packet)->raw_data);
if ((*packet)->rawData) {
free((*packet)->rawData);
}
free(*packet);
*packet=NULL;
}
struct msPacket *
msPacketRead(int client_fd) {
msPacketRead(int clientFd) {
struct msPacket *packet = NULL;
size_t id = 0;
size_t size = 0;
ssize_t result;
unsigned char *raw_data = NULL;
unsigned char *rawData = NULL;
result = read(client_fd, &id, sizeof id);
result = read(clientFd, &id, sizeof id);
if (result < sizeof id) {
printf("Unable to read id\n");
goto return_read_packet;
}
id = be64toh(id);
result = read(client_fd, &size, sizeof size);
result = read(clientFd, &size, sizeof size);
if (result < sizeof size) {
printf("Unable to read packet\n");
goto return_read_packet;
}
size = be64toh(size);
raw_data = malloc(size);
rawData = malloc(size);
size_t to_read_size = size;
while (to_read_size > 0) {
result = read(client_fd, &raw_data[size - to_read_size], to_read_size);
result = read(clientFd, &rawData[size - to_read_size], to_read_size);
if (result == -1) {
printf("Unable to read raw_data\n");
printf("Unable to read rawData\n");
goto return_read_packet;
}
to_read_size -= result;
@ -126,10 +131,10 @@ msPacketRead(int client_fd) {
packet = calloc (1, sizeof *packet);
packet->id = id;
packet->size = size;
packet->raw_data = raw_data;
packet->rawData = rawData;
return_read_packet:
if (!packet && raw_data) {
free(raw_data);
if (!packet && rawData) {
free(rawData);
}
return packet;
}

22
src/packet/hello.c
View File

@ -1,8 +1,11 @@
#include <pthread.h>
#include <unistd.h>
#include <endian.h>
#include <linux/limits.h>
#include <sys/signal.h>
#include <mgba/core/core.h>
#include <mgba/core/serialize.h>
#include <msgba/packet/send_frame.h>
@ -30,13 +33,8 @@ msThreadCallbackStart(struct mCoreThread *threadContext) {
sigemptyset(&set);
sigaddset(&set, SIGPIPE);
pthread_sigmask(SIG_BLOCK, &set, NULL);
struct msClientConnectionData *data = (struct msClientConnectionData *)threadContext->userData;
struct msCoreController *coreController = data->coreController;
struct mCore *core = coreController->threadContext.core;
if (!mCoreLoadStateNamed (core, coreController->saveState, 0)) { // SAVESTATE_SAVEDATA & SAVESTATE_RTC)) {
fprintf(stderr, "Unable to load save state\n");
}
}
void
msThreadCallbackSetFrame(struct mCoreThread *threadContext) {
#define SEC_TO_NANO(sec) \
@ -45,8 +43,8 @@ msThreadCallbackSetFrame(struct mCoreThread *threadContext) {
unsigned int stride;
color_t *outputBuffer;
unsigned width, height;
unsigned char *raw_data = NULL;
size_t raw_data_len = 0;
unsigned char *rawData = NULL;
size_t rawDataLen = 0;
struct msPacketSendFrame *send_frame = NULL;
struct msPacket *packet = NULL;
struct timespec current_date;
@ -70,12 +68,12 @@ msThreadCallbackSetFrame(struct mCoreThread *threadContext) {
data->coreController->threadContext.core->desiredVideoDimensions(data->coreController->threadContext.core, &width, &height);
send_frame = msPacketSendFrameNew(stride, width * height, outputBuffer);
raw_data = msPacketSendFrameSerialize(send_frame, &raw_data_len);
if (!raw_data) {
rawData = msPacketSendFrameSerialize(send_frame, &rawDataLen);
if (!rawData) {
goto return_ms_thread_callback_set_frame;
}
packet = msPacketNew(PACKET_SEND_FRAME, raw_data_len, raw_data);
packet = msPacketNew(PACKET_SEND_FRAME, rawDataLen, rawData);
msPacketSend(packet, data);
return_ms_thread_callback_set_frame:
@ -113,7 +111,7 @@ msPacketHelloGet(const struct msPacket *packet, int client_fd,
struct msPacketHello *hello = NULL;
unsigned char *rom = NULL;
unsigned char *savestate = NULL;
FILE *fp = fmemopen(packet->raw_data, packet->size, "r");
FILE *fp = fmemopen(packet->rawData, packet->size, "r");
if (!fp) {
printf("Unable to fmemopen\n");
goto return_get_packet_hello;

3
src/packet/key_down.c
View File

@ -2,6 +2,7 @@
#include <unistd.h>
#include <mgba/core/input.h>
#include <mgba/core/core.h>
#include <msgba/packet.h>
#include <msgba/core_controller.h>
@ -13,7 +14,7 @@ msPacketKeyDownGet(const struct msPacket *packet, int clientFd, struct msClientC
struct msPacketKeyDown *keyDown = NULL;
int key = 0;
char isPressed = 0;
FILE *fp = fmemopen(packet->raw_data, packet->size, "r");
FILE *fp = fmemopen(packet->rawData, packet->size, "r");
if (1 != fread(&isPressed, sizeof isPressed, 1, fp)) {
goto return_ms_packet_key_down_get;
}

178
src/packet/save_request.c Normal file
View File

@ -0,0 +1,178 @@
#include <pthread.h>
#include <unistd.h>
#include <string.h>
#include <mgba/core/serialize.h>
#include <mgba/core/core.h>
#include <mgba-util/vfs.h>
#include <msgba/packet.h>
#include <msgba/packet/save_request.h>
#include <msgba/packet/save_response.h>
#include <msgba/core_controller.h>
bool
msPacketSaveRequestGet(const struct msPacket *packet, int clientFd, struct msClientConnectionData *const data) {
bool result = false;
struct msPacketSaveRequest *self = NULL;
uint64_t identifier = 0;
FILE *fp = fmemopen(packet->rawData, packet->size, "r");
if (1 != fread(&identifier, sizeof identifier, 1, fp)) {
goto return_ms_packet_save_request_get;
}
identifier = be64toh(identifier);
self = malloc(sizeof *self);
self->identifier = identifier;
result = true;
return_ms_packet_save_request_get:
fclose(fp);
if (!result) {
return false;
}
return msPacketSaveRequestHandle(packet, self, data);
}
struct msPacketSaveRequestData {
uint64_t identifier;
};
static struct msPacketSaveRequestData *
msPacketSaveRequestDataNew(uint64_t identifier) {
struct msPacketSaveRequestData *self = malloc(sizeof *self);
self->identifier = identifier;
return self;
}
void
msPacketSaveRequestDestroy(struct msPacketSaveRequest **self) {
free(*self);
*self = NULL;
}
void
msPacketSaveRequestDataDestroy(struct msPacketSaveRequestData **self) {
free(*self);
*self = NULL;
}
static void
shrinkOrNullSaveRequestsDataArray(struct msClientConnectionData *data) {
size_t requestsLen = data->saveRequestsLen;
struct msPacketSaveRequestData **requests = data->saveRequests;
for (size_t i = 1; i < requestsLen; i++) {
requests[i-1] = requests[i];
}
requestsLen--;
data->saveRequestsLen = requestsLen;
if (!requestsLen) {
free(data->saveRequests);
data->saveRequests = NULL;
return;
}
data->saveRequests = realloc(requests, sizeof *requests * requestsLen);
}
static unsigned char *
VFileToBytes(struct VFile *file, size_t *len) {
unsigned char *result = NULL;
const ssize_t bufferLen = 120;
ssize_t readLen = 0;
unsigned char buffer[bufferLen];
if (!len) {
goto return_vfile_to_bytes;
}
*len = 0;
file->seek(file, 0, SEEK_SET);
while ((readLen = file->read(file, buffer, bufferLen)) && readLen) {
*len += readLen;
unsigned char *resultTmp= realloc(result, sizeof *result * *len);
if (!resultTmp) {
free(result);
result = NULL;
goto return_vfile_to_bytes;
}
result = resultTmp;
// memcpy_s not available in linux.
memcpy(&result[*len-1-readLen], buffer, readLen); // NOLINT
}
return_vfile_to_bytes:
return result;
}
static void
msPacketSaveRequestSendResponse(struct mCoreThread *threadContext) {
struct msClientConnectionData *data = (struct msClientConnectionData *) threadContext->userData;
struct msPacketSaveRequestData **requests = data->saveRequests;
size_t requestsLen;
struct msPacketSaveRequestData *request = NULL;
struct VFile *saveState = NULL;
size_t saveLen = 0;
unsigned char *save = NULL;
struct msPacketSaveResponse *response = NULL;
size_t rawDataLen = 0;
unsigned char *rawData = NULL;
struct msPacket *packet = NULL;
pthread_mutex_lock(data->mutexSaveRequests);
requestsLen = data->saveRequestsLen;
if (!requestsLen) {
printf("Somehow the queue of saveRequests got exhausted, this should not happen.");
goto unlock_ms_packet_save_request_send_response;
}
struct msCoreController *coreController = data->coreController;
struct mCore *core = coreController->threadContext.core;
request = requests[0];
shrinkOrNullSaveRequestsDataArray(data);
unlock_ms_packet_save_request_send_response:
pthread_mutex_unlock(data->mutexSaveRequests);
if (!requestsLen) {
return;
}
saveState = VFileMemChunk (NULL, 0);
mCoreSaveStateNamed(core, saveState, SAVESTATE_SAVEDATA & SAVESTATE_RTC);
save = VFileToBytes(saveState, &saveLen);
response = msPacketSaveResponseNew(request->identifier, saveLen, save);
rawData = msPacketSaveResponseSerialize(response, &rawDataLen);
if (!rawData) {
goto return_ms_packet_save_request_send_response;
}
packet = msPacketNew(PACKET_SEND_SAVE_RESPONSE, rawDataLen, rawData);
msPacketSend(packet, data);
return_ms_packet_save_request_send_response:
if (!packet && rawData) {
free(rawData);
}
if (response) {
msPacketSaveResponseDestroy(&response);
}
if (request) {
msPacketSaveRequestDataDestroy(&request);
}
if (packet) {
msPacketDestroy(&packet);
}
}
bool
msPacketSaveRequestHandle(const struct msPacket *packet, struct msPacketSaveRequest *self, struct msClientConnectionData *const data) {
bool result = false;
struct msCoreController *coreController = data->coreController;
size_t saveRequestsLen = 0;
if (!coreController) {
goto return_ms_packet_save_request_handle;
}
pthread_mutex_lock(data->mutexSaveRequests);
data->saveRequestsLen++;
saveRequestsLen = data->saveRequestsLen;
// W: Suspicious usage of 'sizeof(A*)'; pointer to aggregate by clang-tidy.
data->saveRequests = realloc(data->saveRequests, sizeof *data->saveRequests * saveRequestsLen);
data->saveRequests[data->saveRequestsLen - 1] = msPacketSaveRequestDataNew(self->identifier);
pthread_mutex_unlock(data->mutexSaveRequests);
mCoreThreadRunFunction(&coreController->threadContext, &msPacketSaveRequestSendResponse);
return_ms_packet_save_request_handle:
msPacketSaveRequestDestroy(&self);
return result;
}

49
src/packet/save_response.c Normal file
View File

@ -0,0 +1,49 @@
#include <string.h>
#include <stdlib.h>
#include <msgba/packet/save_response.h>
void
msPacketSaveResponseDestroy(struct msPacketSaveResponse **selfPtr) {
free(*selfPtr);
*selfPtr = NULL;
}
struct msPacketSaveResponse *
msPacketSaveResponseNew(uint64_t identifier, size_t saveLen, unsigned char *save) {
struct msPacketSaveResponse *self = NULL;
self = malloc(sizeof *self);
self->identifier = identifier;
self->saveLen = saveLen;
self->save = save;
return self;
}
unsigned char *
msPacketSaveResponseSerialize(struct msPacketSaveResponse *const self, size_t *len) {
unsigned char *result = NULL;
size_t identifier = self->identifier;
size_t saveLen = self->saveLen;
size_t currentCursor = 0;
if (!len) {
goto return_ms_packet_save_response_serialize;
}
*len = sizeof identifier + sizeof saveLen + sizeof *result * saveLen;
result = malloc(*len);
htobe64(identifier);
htobe64(saveLen);
memcpy(&result[currentCursor], &identifier, sizeof identifier); // NOLINT
currentCursor += sizeof identifier;
memcpy(&result[currentCursor], &saveLen, sizeof saveLen); // NOLINT
currentCursor += sizeof saveLen;
memcpy(&result[currentCursor], self->save, sizeof *result * saveLen); // NOLINT
return_ms_packet_save_response_serialize:
return result;
}

1
src/packet/send_frame.c
View File

@ -1,3 +1,4 @@
#include <stdio.h>
#include <endian.h>
#include <stdlib.h>