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Atmosphere/stratosphere/dmnt.gen2/source/dmnt2_debug_log.cpp

243 lines
8 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stratosphere.hpp>
#include "dmnt2_debug_log.hpp"
// TODO: This should be converted to use log manager. */
//#define AMS_DMNT2_ENABLE_HTCS_DEBUG_LOG
#if defined(AMS_DMNT2_ENABLE_HTCS_DEBUG_LOG)
namespace ams::dmnt {
namespace {
constexpr size_t NumLogBuffers = 0x200;
constexpr size_t LogBufferSize = 0x100;
constexpr inline auto LogThreadPriority = os::HighestThreadPriority - 2;
constinit os::MessageQueueType g_buf_mq;
constinit os::MessageQueueType g_req_mq;
alignas(os::ThreadStackAlignment) u8 g_log_thread_stack[os::MemoryPageSize];
constinit char g_log_buffers[NumLogBuffers][LogBufferSize];
constinit uintptr_t g_buf_mq_storage[NumLogBuffers];
constinit uintptr_t g_req_mq_storage[NumLogBuffers];
constinit os::ThreadType g_log_thread;
util::optional<char *> GetLogBuffer() {
/* Try to get a log buffer. */
uintptr_t address;
if (os::TryReceiveMessageQueue(std::addressof(address), std::addressof(g_buf_mq))) {
return reinterpret_cast<char *>(address);
} else {
return util::nullopt;
}
}
/* TODO: This is a hack because we don't have a proper LogManager system module. */
/* Eventually, this should be refactored to use normal logging. */
void DebugLogThreadFunction(void *) {
/* Loop forever, servicing our log server. */
while (true) {
/* Get a socket. */
int fd;
while ((fd = htcs::Socket()) == -1) {
os::SleepThread(TimeSpan::FromSeconds(1));
}
/* Ensure we cleanup the socket when we're done with it. */
ON_SCOPE_EXIT {
htcs::Close(fd);
os::SleepThread(TimeSpan::FromSeconds(1));
};
/* Create a sock addr for our server. */
htcs::SockAddrHtcs addr;
addr.family = htcs::HTCS_AF_HTCS;
addr.peer_name = htcs::GetPeerNameAny();
std::strcpy(addr.port_name.name, "iywys@$dmnt2_log");
/* Bind. */
if (htcs::Bind(fd, std::addressof(addr)) == -1) {
continue;
}
/* Listen on our port. */
while (htcs::Listen(fd, 0) == 0) {
/* Continue accepting clients, so long as we can. */
int client_fd;
while (true) {
/* Try to accept a client. */
if (client_fd = htcs::Accept(fd, std::addressof(addr)); client_fd < 0) {
break;
}
/* Handle the client. */
while (true) {
/* Receive a log request. */
uintptr_t log_buffer_address;
os::ReceiveMessageQueue(std::addressof(log_buffer_address), std::addressof(g_req_mq));
/* Ensure we manage our request properly. */
ON_SCOPE_EXIT { os::SendMessageQueue(std::addressof(g_buf_mq), log_buffer_address); };
/* Send the data. */
const char * const log_buffer = reinterpret_cast<const char *>(log_buffer_address);
if (htcs::Send(client_fd, log_buffer, std::strlen(log_buffer), 0) < 0) {
break;
}
}
/* Close the client socket. */
htcs::Close(client_fd);
}
}
}
}
}
void InitializeDebugLog() {
/* Initialize logging message queues. */
os::InitializeMessageQueue(std::addressof(g_buf_mq), g_buf_mq_storage, NumLogBuffers);
os::InitializeMessageQueue(std::addressof(g_req_mq), g_req_mq_storage, NumLogBuffers);
/* Initially make all log buffers available. */
for (size_t i = 0; i < NumLogBuffers; ++i) {
os::SendMessageQueue(std::addressof(g_buf_mq), reinterpret_cast<uintptr_t>(g_log_buffers[i]));
}
/* Create and start the debug log thread. */
R_ABORT_UNLESS(os::CreateThread(std::addressof(g_log_thread), DebugLogThreadFunction, nullptr, g_log_thread_stack, sizeof(g_log_thread_stack), LogThreadPriority));
os::StartThread(std::addressof(g_log_thread));
}
void DebugLog(const char *prefix, const char *fmt, ...) {
/* Try to get a log buffer. */
const auto log_buffer_holder = GetLogBuffer();
if (!log_buffer_holder) {
return;
}
/* Format into the log buffer. */
char * const log_buffer = *log_buffer_holder;
{
const auto prefix_len = std::strlen(prefix);
std::memcpy(log_buffer, prefix, prefix_len);
{
std::va_list vl;
va_start(vl, fmt);
util::VSNPrintf(log_buffer + prefix_len, LogBufferSize - prefix_len, fmt, vl);
va_end(vl);
}
}
/* Request to log. */
os::SendMessageQueue(std::addressof(g_req_mq), reinterpret_cast<uintptr_t>(log_buffer));
}
}
#else
namespace ams::dmnt {
//#define AMS_DMNT2_ENABLE_SD_CARD_DEBUG_LOG
#if defined(AMS_DMNT2_ENABLE_SD_CARD_DEBUG_LOG)
namespace {
alignas(0x40) constinit u8 g_buffer[os::MemoryPageSize * 4];
constinit lmem::HeapHandle g_debug_log_heap;
constinit fs::FileHandle g_debug_log_file;
constinit os::SdkMutex g_fs_mutex;
constinit s64 g_fs_offset = 0;
void *Allocate(size_t size) {
return lmem::AllocateFromExpHeap(g_debug_log_heap, size);
}
void Deallocate(void *p, size_t size) {
AMS_UNUSED(size);
return lmem::FreeToExpHeap(g_debug_log_heap, p);
}
}
void InitializeDebugLog() {
g_debug_log_heap = lmem::CreateExpHeap(g_buffer, sizeof(g_buffer), lmem::CreateOption_ThreadSafe);
fs::SetAllocator(Allocate, Deallocate);
fs::InitializeForSystem();
fs::SetEnabledAutoAbort(false);
R_ABORT_UNLESS(fs::MountSdCard("sdmc"));
fs::DeleteFile("sdmc:/dmnt2.log");
R_ABORT_UNLESS(fs::CreateFile("sdmc:/dmnt2.log", 0));
R_ABORT_UNLESS(fs::OpenFile(std::addressof(g_debug_log_file), "sdmc:/dmnt2.log", fs::OpenMode_Write | fs::OpenMode_AllowAppend));
}
void DebugLog(const char *prefix, const char *fmt, ...) {
/* Do nothing. */
char buffer[0x200];
{
const auto prefix_len = std::strlen(prefix);
std::memcpy(buffer, prefix, prefix_len);
std::va_list vl;
va_start(vl, fmt);
util::VSNPrintf(buffer + prefix_len, sizeof(buffer) - prefix_len, fmt, vl);
va_end(vl);
}
const auto len = std::strlen(buffer);
std::scoped_lock lk(g_fs_mutex);
R_ABORT_UNLESS(fs::WriteFile(g_debug_log_file, g_fs_offset, buffer, len, fs::WriteOption::Flush));
g_fs_offset += len;
}
#else
void InitializeDebugLog() {
/* ... */
}
void DebugLog(const char *prefix, const char *fmt, ...) {
AMS_UNUSED(prefix, fmt);
}
#endif
}
#endif