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Write Sunshine log output to disk and hide the window

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This commit is contained in:
Cameron Gutman 2021-08-03 19:25:40 -05:00
commit b4255e22aa
2 changed files with 37 additions and 6 deletions
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4
sunshine/main.cpp
View file

@ -185,6 +185,10 @@ int main(int argc, char *argv[]) {
os << _date << log_type << view.attribute_values()[message].extract<std::string>();
});
// Flush after each log record to ensure log file contents on disk isn't stale.
// This is particularly important when running from a Windows service.
sink->locked_backend()->auto_flush(true);
bl::core::get()->add_sink(sink);
auto fg = util::fail_guard(log_flush);

39
tools/sunshinesvc.cpp
View file

@ -1,7 +1,6 @@
#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
#include <wtsapi32.h>
#include <psapi.h>
SERVICE_STATUS_HANDLE service_status_handle;
SERVICE_STATUS service_status;
@ -60,6 +59,26 @@ HANDLE DuplicateTokenForConsoleSession() {
return new_token;
}
HANDLE OpenLogFileHandle() {
WCHAR log_file_name[MAX_PATH];
// Create sunshine.log in the Temp folder (usually %SYSTEMROOT%\Temp)
GetTempPathW(_countof(log_file_name), log_file_name);
wcscat_s(log_file_name, L"sunshine.log");
// The file handle must be inheritable for our child process to use it
SECURITY_ATTRIBUTES security_attributes = { sizeof(security_attributes), NULL, TRUE };
// Overwrite the old sunshine.log
return CreateFileW(log_file_name,
GENERIC_WRITE,
FILE_SHARE_READ,
&security_attributes,
CREATE_ALWAYS,
0,
NULL);
}
VOID WINAPI ServiceMain(DWORD dwArgc, LPTSTR *lpszArgv) {
stop_event = CreateEventA(NULL, TRUE, FALSE, NULL);
if(stop_event == NULL) {
@ -71,6 +90,11 @@ VOID WINAPI ServiceMain(DWORD dwArgc, LPTSTR *lpszArgv) {
return;
}
auto log_file_handle = OpenLogFileHandle();
if (log_file_handle == INVALID_HANDLE_VALUE) {
return;
}
// Tell SCM we're running
service_status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
service_status.dwServiceSpecificExitCode = 0;
@ -89,18 +113,21 @@ VOID WINAPI ServiceMain(DWORD dwArgc, LPTSTR *lpszArgv) {
}
STARTUPINFOW startup_info = {};
startup_info.cb = sizeof(startup_info);
startup_info.lpDesktop = (LPWSTR)L"winsta0\\default";
startup_info.cb = sizeof(startup_info);
startup_info.lpDesktop = (LPWSTR)L"winsta0\\default";
startup_info.dwFlags = STARTF_USESTDHANDLES;
startup_info.hStdInput = INVALID_HANDLE_VALUE;
startup_info.hStdOutput = log_file_handle;
startup_info.hStdError = log_file_handle;
// TODO: Redirect stdout to file and set CREATE_NO_WINDOW
PROCESS_INFORMATION process_info;
if(!CreateProcessAsUserW(console_token,
L"Sunshine.exe",
NULL,
NULL,
NULL,
FALSE,
ABOVE_NORMAL_PRIORITY_CLASS | CREATE_UNICODE_ENVIRONMENT /*| CREATE_NO_WINDOW */,
TRUE,
ABOVE_NORMAL_PRIORITY_CLASS | CREATE_UNICODE_ENVIRONMENT | CREATE_NO_WINDOW,
NULL,
NULL,
&startup_info,