#include "nssm.h"\r
\r
+#define COMPLAINED_READ (1 << 0)\r
+#define COMPLAINED_WRITE (1 << 1)\r
+#define COMPLAINED_ROTATE (1 << 2)\r
+\r
+static HANDLE create_logging_thread(TCHAR *service_name, TCHAR *path, unsigned long sharing, unsigned long disposition, unsigned long flags, HANDLE *read_handle_ptr, HANDLE *pipe_handle_ptr, HANDLE *write_handle_ptr, unsigned long rotate_bytes_low, unsigned long rotate_bytes_high, unsigned long rotate_delay, unsigned long *tid_ptr, unsigned long *rotate_online, bool copy_and_truncate) {\r
+ *tid_ptr = 0;\r
+\r
+ /* Pipe between application's stdout/stderr and our logging handle. */\r
+ if (read_handle_ptr && ! *read_handle_ptr) {\r
+ if (pipe_handle_ptr && ! *pipe_handle_ptr) {\r
+ if (CreatePipe(read_handle_ptr, pipe_handle_ptr, 0, 0)) {\r
+ SetHandleInformation(*pipe_handle_ptr, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT);\r
+ }\r
+ else {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEPIPE_FAILED, service_name, path, error_string(GetLastError()));\r
+ return (HANDLE) 0;\r
+ }\r
+ }\r
+ }\r
+\r
+ logger_t *logger = (logger_t *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(logger_t));\r
+ if (! logger) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("logger"), _T("create_logging_thread()"), 0);\r
+ return (HANDLE) 0;\r
+ }\r
+\r
+ ULARGE_INTEGER size;\r
+ size.LowPart = rotate_bytes_low;\r
+ size.HighPart = rotate_bytes_high;\r
+\r
+ logger->service_name = service_name;\r
+ logger->path = path;\r
+ logger->sharing = sharing;\r
+ logger->disposition = disposition;\r
+ logger->flags = flags;\r
+ logger->read_handle = *read_handle_ptr;\r
+ logger->write_handle = *write_handle_ptr;\r
+ logger->size = (__int64) size.QuadPart;\r
+ logger->tid_ptr = tid_ptr;\r
+ logger->rotate_online = rotate_online;\r
+ logger->rotate_delay = rotate_delay;\r
+ logger->copy_and_truncate = copy_and_truncate;\r
+\r
+ HANDLE thread_handle = CreateThread(NULL, 0, log_and_rotate, (void *) logger, 0, logger->tid_ptr);\r
+ if (! thread_handle) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATETHREAD_FAILED, error_string(GetLastError()), 0);\r
+ HeapFree(GetProcessHeap(), 0, logger);\r
+ }\r
+\r
+ return thread_handle;\r
+}\r
+\r
+static inline unsigned long guess_charsize(void *address, unsigned long bufsize) {\r
+ if (IsTextUnicode(address, bufsize, 0)) return (unsigned long) sizeof(wchar_t);\r
+ else return (unsigned long) sizeof(char);\r
+}\r
+\r
+static inline void write_bom(logger_t *logger, unsigned long *out) {\r
+ wchar_t bom = L'\ufeff';\r
+ if (! WriteFile(logger->write_handle, (void *) &bom, sizeof(bom), out, 0)) {\r
+ log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_SOMEBODY_SET_UP_US_THE_BOM, logger->service_name, logger->path, error_string(GetLastError()), 0);\r
+ }\r
+}\r
+\r
/* Get path, share mode, creation disposition and flags for a stream. */\r
-int get_createfile_parameters(HKEY key, TCHAR *prefix, TCHAR *path, unsigned long *sharing, unsigned long default_sharing, unsigned long *disposition, unsigned long default_disposition, unsigned long *flags, unsigned long default_flags) {\r
+int get_createfile_parameters(HKEY key, TCHAR *prefix, TCHAR *path, unsigned long *sharing, unsigned long default_sharing, unsigned long *disposition, unsigned long default_disposition, unsigned long *flags, unsigned long default_flags, bool *copy_and_truncate) {\r
TCHAR value[NSSM_STDIO_LENGTH];\r
\r
/* Path. */\r
log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, prefix, _T("get_createfile_parameters()"), 0);\r
return 1;\r
}\r
- switch (expand_parameter(key, value, path, MAX_PATH, true, false)) {\r
+ switch (expand_parameter(key, value, path, PATH_LENGTH, true, false)) {\r
case 0: if (! path[0]) return 0; break; /* OK. */\r
default: return 2; /* Error. */\r
}\r
switch (get_number(key, value, sharing, false)) {\r
case 0: *sharing = default_sharing; break; /* Missing. */\r
case 1: break; /* Found. */\r
- case -2: return 4; break; /* Error. */\r
+ case -2: return 4; /* Error. */\r
}\r
\r
/* CreationDisposition. */\r
switch (get_number(key, value, disposition, false)) {\r
case 0: *disposition = default_disposition; break; /* Missing. */\r
case 1: break; /* Found. */\r
- case -2: return 6; break; /* Error. */\r
+ case -2: return 6; /* Error. */\r
}\r
\r
/* Flags. */\r
switch (get_number(key, value, flags, false)) {\r
case 0: *flags = default_flags; break; /* Missing. */\r
case 1: break; /* Found. */\r
- case -2: return 8; break; /* Error. */\r
+ case -2: return 8; /* Error. */\r
+ }\r
+\r
+ /* Rotate with CopyFile() and SetEndOfFile(). */\r
+ if (copy_and_truncate) {\r
+ unsigned long data;\r
+ if (_sntprintf_s(value, _countof(value), _TRUNCATE, _T("%s%s"), prefix, NSSM_REG_STDIO_COPY_AND_TRUNCATE) < 0) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, NSSM_REG_STDIO_COPY_AND_TRUNCATE, _T("get_createfile_parameters()"), 0);\r
+ return 9;\r
+ }\r
+ switch (get_number(key, value, &data, false)) {\r
+ case 0: *copy_and_truncate = false; break; /* Missing. */\r
+ case 1: /* Found. */\r
+ if (data) *copy_and_truncate = true;\r
+ else *copy_and_truncate = false;\r
+ break;\r
+ case -2: return 9; /* Error. */\r
+ }\r
}\r
\r
return 0;\r
return set_number(key, value, number);\r
}\r
\r
-HANDLE append_to_file(TCHAR *path, unsigned long sharing, SECURITY_ATTRIBUTES *attributes, unsigned long disposition, unsigned long flags) {\r
- HANDLE ret;\r
+int delete_createfile_parameter(HKEY key, TCHAR *prefix, TCHAR *suffix) {\r
+ TCHAR value[NSSM_STDIO_LENGTH];\r
+\r
+ if (_sntprintf_s(value, _countof(value), _TRUNCATE, _T("%s%s"), prefix, suffix) < 0) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, suffix, _T("delete_createfile_parameter()"), 0);\r
+ return 1;\r
+ }\r
\r
- /* Try to append to the file first. */\r
- ret = CreateFile(path, FILE_APPEND_DATA, sharing, attributes, disposition, flags, 0);\r
- if (ret) {\r
- SetEndOfFile(ret);\r
+ if (RegDeleteValue(key, value)) return 0;\r
+ return 1;\r
+}\r
+\r
+HANDLE write_to_file(TCHAR *path, unsigned long sharing, SECURITY_ATTRIBUTES *attributes, unsigned long disposition, unsigned long flags) {\r
+ HANDLE ret = CreateFile(path, FILE_WRITE_DATA, sharing, attributes, disposition, flags, 0);\r
+ if (ret!= INVALID_HANDLE_VALUE) {\r
+ if (SetFilePointer(ret, 0, 0, FILE_END) != INVALID_SET_FILE_POINTER) SetEndOfFile(ret);\r
return ret;\r
}\r
\r
- unsigned long error = GetLastError();\r
- if (error != ERROR_FILE_NOT_FOUND) {\r
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEFILE_FAILED, path, error_string(error));\r
- return (HANDLE) 0;\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEFILE_FAILED, path, error_string(GetLastError()), 0);\r
+ return ret;\r
+}\r
+\r
+static void rotated_filename(TCHAR *path, TCHAR *rotated, unsigned long rotated_len, SYSTEMTIME *st) {\r
+ if (! st) {\r
+ SYSTEMTIME now;\r
+ st = &now;\r
+ GetSystemTime(st);\r
}\r
\r
- /* It didn't exist. Create it. */\r
- return CreateFile(path, FILE_WRITE_DATA, sharing, attributes, disposition, flags, 0);\r
+ TCHAR buffer[PATH_LENGTH];\r
+ memmove(buffer, path, sizeof(buffer));\r
+ TCHAR *ext = PathFindExtension(buffer);\r
+ TCHAR extension[PATH_LENGTH];\r
+ _sntprintf_s(extension, _countof(extension), _TRUNCATE, _T("-%04u%02u%02uT%02u%02u%02u.%03u%s"), st->wYear, st->wMonth, st->wDay, st->wHour, st->wMinute, st->wSecond, st->wMilliseconds, ext);\r
+ *ext = _T('\0');\r
+ _sntprintf_s(rotated, rotated_len, _TRUNCATE, _T("%s%s"), buffer, extension);\r
}\r
\r
-int get_output_handles(HKEY key, STARTUPINFO *si) {\r
- TCHAR path[MAX_PATH];\r
- TCHAR stdout_path[MAX_PATH];\r
- unsigned long sharing, disposition, flags;\r
- bool set_flags = false;\r
+void rotate_file(TCHAR *service_name, TCHAR *path, unsigned long seconds, unsigned long delay, unsigned long low, unsigned long high, bool copy_and_truncate) {\r
+ unsigned long error;\r
+\r
+ /* Now. */\r
+ SYSTEMTIME st;\r
+ GetSystemTime(&st);\r
\r
- /* Standard security attributes allowing inheritance. */\r
- SECURITY_ATTRIBUTES attributes;\r
- ZeroMemory(&attributes, sizeof(attributes));\r
- attributes.bInheritHandle = true;\r
+ BY_HANDLE_FILE_INFORMATION info;\r
+\r
+ /* Try to open the file to check if it exists and to get attributes. */\r
+ HANDLE file = CreateFile(path, 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);\r
+ if (file != INVALID_HANDLE_VALUE) {\r
+ /* Get file attributes. */\r
+ if (! GetFileInformationByHandle(file, &info)) {\r
+ /* Reuse current time for rotation timestamp. */\r
+ seconds = low = high = 0;\r
+ SystemTimeToFileTime(&st, &info.ftLastWriteTime);\r
+ }\r
+\r
+ CloseHandle(file);\r
+ }\r
+ else {\r
+ error = GetLastError();\r
+ if (error == ERROR_FILE_NOT_FOUND) return;\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_ROTATE_FILE_FAILED, service_name, path, _T("CreateFile()"), path, error_string(error), 0);\r
+ /* Reuse current time for rotation timestamp. */\r
+ seconds = low = high = 0;\r
+ SystemTimeToFileTime(&st, &info.ftLastWriteTime);\r
+ }\r
+\r
+ /* Check file age. */\r
+ if (seconds) {\r
+ FILETIME ft;\r
+ SystemTimeToFileTime(&st, &ft);\r
+\r
+ ULARGE_INTEGER s;\r
+ s.LowPart = ft.dwLowDateTime;\r
+ s.HighPart = ft.dwHighDateTime;\r
+ s.QuadPart -= seconds * 10000000LL;\r
+ ft.dwLowDateTime = s.LowPart;\r
+ ft.dwHighDateTime = s.HighPart;\r
+ if (CompareFileTime(&info.ftLastWriteTime, &ft) > 0) return;\r
+ }\r
+\r
+ /* Check file size. */\r
+ if (low || high) {\r
+ if (info.nFileSizeHigh < high) return;\r
+ if (info.nFileSizeHigh == high && info.nFileSizeLow < low) return;\r
+ }\r
+\r
+ /* Get new filename. */\r
+ FileTimeToSystemTime(&info.ftLastWriteTime, &st);\r
+\r
+ TCHAR rotated[PATH_LENGTH];\r
+ rotated_filename(path, rotated, _countof(rotated), &st);\r
+\r
+ /* Rotate. */\r
+ bool ok = true;\r
+ TCHAR *function;\r
+ if (copy_and_truncate) {\r
+ function = _T("CopyFile()");\r
+ if (CopyFile(path, rotated, TRUE)) {\r
+ file = write_to_file(path, NSSM_STDOUT_SHARING, 0, NSSM_STDOUT_DISPOSITION, NSSM_STDOUT_FLAGS);\r
+ Sleep(delay);\r
+ SetFilePointer(file, 0, 0, FILE_BEGIN);\r
+ SetEndOfFile(file);\r
+ CloseHandle(file);\r
+ }\r
+ else ok = false;\r
+ }\r
+ else {\r
+ function = _T("MoveFile()");\r
+ if (! MoveFile(path, rotated)) ok = false;\r
+ }\r
+ if (ok) {\r
+ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_ROTATED, service_name, path, rotated, 0);\r
+ return;\r
+ }\r
+ error = GetLastError();\r
+\r
+ if (error == ERROR_FILE_NOT_FOUND) return;\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_ROTATE_FILE_FAILED, service_name, path, function, rotated, error_string(error), 0);\r
+ return;\r
+}\r
+\r
+int get_output_handles(nssm_service_t *service, STARTUPINFO *si) {\r
+ if (! si) return 1;\r
+\r
+ /* Allocate a new console so we get a fresh stdin, stdout and stderr. */\r
+ alloc_console(service);\r
\r
/* stdin */\r
- if (get_createfile_parameters(key, NSSM_REG_STDIN, path, &sharing, NSSM_STDIN_SHARING, &disposition, NSSM_STDIN_DISPOSITION, &flags, NSSM_STDIN_FLAGS)) return 1;\r
- if (path[0]) {\r
- si->hStdInput = CreateFile(path, FILE_READ_DATA, sharing, &attributes, disposition, flags, 0);\r
- if (! si->hStdInput) {\r
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEFILE_FAILED, path, error_string(GetLastError()));\r
+ if (service->stdin_path[0]) {\r
+ si->hStdInput = CreateFile(service->stdin_path, FILE_READ_DATA, service->stdin_sharing, 0, service->stdin_disposition, service->stdin_flags, 0);\r
+ if (si->hStdInput == INVALID_HANDLE_VALUE) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEFILE_FAILED, service->stdin_path, error_string(GetLastError()), 0);\r
return 2;\r
}\r
- set_flags = true;\r
}\r
\r
/* stdout */\r
- if (get_createfile_parameters(key, NSSM_REG_STDOUT, path, &sharing, NSSM_STDOUT_SHARING, &disposition, NSSM_STDOUT_DISPOSITION, &flags, NSSM_STDOUT_FLAGS)) return 3;\r
- if (path[0]) {\r
- /* Remember path for comparison with stderr. */\r
- if (_sntprintf_s(stdout_path, _countof(stdout_path), _TRUNCATE, _T("%s"), path) < 0) {\r
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("stdout_path"), _T("get_output_handles"), 0);\r
- return 4;\r
+ if (service->stdout_path[0]) {\r
+ if (service->rotate_files) rotate_file(service->name, service->stdout_path, service->rotate_seconds, service->rotate_bytes_low, service->rotate_bytes_high, service->rotate_delay, service->stdout_copy_and_truncate);\r
+ HANDLE stdout_handle = write_to_file(service->stdout_path, service->stdout_sharing, 0, service->stdout_disposition, service->stdout_flags);\r
+ if (stdout_handle == INVALID_HANDLE_VALUE) return 4;\r
+\r
+ if (service->rotate_files && service->rotate_stdout_online) {\r
+ service->stdout_pipe = si->hStdOutput = 0;\r
+ service->stdout_thread = create_logging_thread(service->name, service->stdout_path, service->stdout_sharing, service->stdout_disposition, service->stdout_flags, &service->stdout_pipe, &si->hStdOutput, &stdout_handle, service->rotate_bytes_low, service->rotate_bytes_high, service->rotate_delay, &service->stdout_tid, &service->rotate_stdout_online, service->stdout_copy_and_truncate);\r
+ if (! service->stdout_thread) {\r
+ CloseHandle(service->stdout_pipe);\r
+ CloseHandle(si->hStdOutput);\r
+ }\r
}\r
+ else service->stdout_thread = 0;\r
\r
- si->hStdOutput = append_to_file(path, sharing, &attributes, disposition, flags);\r
- if (! si->hStdOutput) return 5;\r
- set_flags = true;\r
+ if (! service->stdout_thread) {\r
+ if (! DuplicateHandle(GetCurrentProcess(), stdout_handle, GetCurrentProcess(), &si->hStdOutput, 0, true, DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS)) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DUPLICATEHANDLE_FAILED, NSSM_REG_STDOUT, _T("stdout"), error_string(GetLastError()), 0);\r
+ return 4;\r
+ }\r
+ service->rotate_stdout_online = NSSM_ROTATE_OFFLINE;\r
+ }\r
}\r
- else ZeroMemory(stdout_path, sizeof(stdout_path));\r
\r
/* stderr */\r
- if (get_createfile_parameters(key, NSSM_REG_STDERR, path, &sharing, NSSM_STDERR_SHARING, &disposition, NSSM_STDERR_DISPOSITION, &flags, NSSM_STDERR_FLAGS)) return 6;\r
- if (path[0]) {\r
- /* Same as stdin? */\r
- if (str_equiv(path, stdout_path)) {\r
+ if (service->stderr_path[0]) {\r
+ /* Same as stdout? */\r
+ if (str_equiv(service->stderr_path, service->stdout_path)) {\r
+ service->stderr_sharing = service->stdout_sharing;\r
+ service->stderr_disposition = service->stdout_disposition;\r
+ service->stderr_flags = service->stdout_flags;\r
+ service->rotate_stderr_online = NSSM_ROTATE_OFFLINE;\r
+\r
/* Two handles to the same file will create a race. */\r
if (! DuplicateHandle(GetCurrentProcess(), si->hStdOutput, GetCurrentProcess(), &si->hStdError, 0, true, DUPLICATE_SAME_ACCESS)) {\r
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DUPLICATEHANDLE_FAILED, NSSM_REG_STDOUT, error_string(GetLastError()));\r
- return 7;\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DUPLICATEHANDLE_FAILED, NSSM_REG_STDOUT, _T("stderr"), error_string(GetLastError()), 0);\r
+ return 6;\r
}\r
}\r
else {\r
- si->hStdError = append_to_file(path, sharing, &attributes, disposition, flags);\r
- if (! si->hStdError) {\r
- log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEFILE_FAILED, path, error_string(GetLastError()));\r
- return 8;\r
+ if (service->rotate_files) rotate_file(service->name, service->stderr_path, service->rotate_seconds, service->rotate_bytes_low, service->rotate_bytes_high, service->rotate_delay, service->stderr_copy_and_truncate);\r
+ HANDLE stderr_handle = write_to_file(service->stderr_path, service->stderr_sharing, 0, service->stderr_disposition, service->stderr_flags);\r
+ if (stderr_handle == INVALID_HANDLE_VALUE) return 7;\r
+\r
+ if (service->rotate_files && service->rotate_stderr_online) {\r
+ service->stderr_pipe = si->hStdError = 0;\r
+ service->stderr_thread = create_logging_thread(service->name, service->stderr_path, service->stderr_sharing, service->stderr_disposition, service->stderr_flags, &service->stderr_pipe, &si->hStdError, &stderr_handle, service->rotate_bytes_low, service->rotate_bytes_high, service->rotate_delay, &service->stderr_tid, &service->rotate_stderr_online, service->stderr_copy_and_truncate);\r
+ if (! service->stderr_thread) {\r
+ CloseHandle(service->stderr_pipe);\r
+ CloseHandle(si->hStdError);\r
+ }\r
+ }\r
+ else service->stderr_thread = 0;\r
+\r
+ if (! service->stderr_thread) {\r
+ if (! DuplicateHandle(GetCurrentProcess(), stderr_handle, GetCurrentProcess(), &si->hStdError, 0, true, DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS)) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DUPLICATEHANDLE_FAILED, NSSM_REG_STDERR, _T("stderr"), error_string(GetLastError()), 0);\r
+ return 7;\r
+ }\r
+ service->rotate_stderr_online = NSSM_ROTATE_OFFLINE;\r
}\r
- SetEndOfFile(si->hStdError);\r
}\r
- set_flags = true;\r
}\r
\r
- if (! set_flags) return 0;\r
-\r
/*\r
We need to set the startup_info flags to make the new handles\r
inheritable by the new process.\r
*/\r
si->dwFlags |= STARTF_USESTDHANDLES;\r
\r
+ if (service->no_console) return 0;\r
+\r
+ /* Redirect other handles. */\r
+ if (! si->hStdInput) {\r
+ if (! DuplicateHandle(GetCurrentProcess(), GetStdHandle(STD_INPUT_HANDLE), GetCurrentProcess(), &si->hStdInput, 0, true, DUPLICATE_SAME_ACCESS)) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DUPLICATEHANDLE_FAILED, _T("STD_INPUT_HANDLE"), _T("stdin"), error_string(GetLastError()), 0);\r
+ return 8;\r
+ }\r
+ }\r
+ if (! si->hStdOutput) {\r
+ if (! DuplicateHandle(GetCurrentProcess(), GetStdHandle(STD_OUTPUT_HANDLE), GetCurrentProcess(), &si->hStdOutput, 0, true, DUPLICATE_SAME_ACCESS)) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DUPLICATEHANDLE_FAILED, _T("STD_OUTPUT_HANDLE"), _T("stdout"), error_string(GetLastError()), 0);\r
+ return 9;\r
+ }\r
+ }\r
+ if (! si->hStdError) {\r
+ if (! DuplicateHandle(GetCurrentProcess(), GetStdHandle(STD_ERROR_HANDLE), GetCurrentProcess(), &si->hStdError, 0, true, DUPLICATE_SAME_ACCESS)) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_DUPLICATEHANDLE_FAILED, _T("STD_ERROR_HANDLE"), _T("stderr"), error_string(GetLastError()), 0);\r
+ return 10;\r
+ }\r
+ }\r
+\r
return 0;\r
}\r
\r
if (si->hStdOutput) CloseHandle(si->hStdOutput);\r
if (si->hStdError) CloseHandle(si->hStdError);\r
}\r
+\r
+/*\r
+ Try multiple times to read from a file.\r
+ Returns: 0 on success.\r
+ 1 on non-fatal error.\r
+ -1 on fatal error.\r
+*/\r
+static int try_read(logger_t *logger, void *address, unsigned long bufsize, unsigned long *in, int *complained) {\r
+ int ret = 1;\r
+ unsigned long error;\r
+ for (int tries = 0; tries < 5; tries++) {\r
+ if (ReadFile(logger->read_handle, address, bufsize, in, 0)) return 0;\r
+\r
+ error = GetLastError();\r
+ switch (error) {\r
+ /* Other end closed the pipe. */\r
+ case ERROR_BROKEN_PIPE:\r
+ ret = -1;\r
+ goto complain_read;\r
+\r
+ /* Couldn't lock the buffer. */\r
+ case ERROR_NOT_ENOUGH_QUOTA:\r
+ Sleep(2000 + tries * 3000);\r
+ ret = 1;\r
+ continue;\r
+\r
+ /* Write was cancelled by the other end. */\r
+ case ERROR_OPERATION_ABORTED:\r
+ ret = 1;\r
+ goto complain_read;\r
+\r
+ default:\r
+ ret = -1;\r
+ }\r
+ }\r
+\r
+complain_read:\r
+ /* Ignore the error if we've been requested to exit anyway. */\r
+ if (*logger->rotate_online != NSSM_ROTATE_ONLINE) return ret;\r
+ if (! (*complained & COMPLAINED_READ)) log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_READFILE_FAILED, logger->service_name, logger->path, error_string(error), 0);\r
+ *complained |= COMPLAINED_READ;\r
+ return ret;\r
+}\r
+\r
+/*\r
+ Try multiple times to write to a file.\r
+ Returns: 0 on success.\r
+ 1 on non-fatal error.\r
+ -1 on fatal error.\r
+*/\r
+static int try_write(logger_t *logger, void *address, unsigned long bufsize, unsigned long *out, int *complained) {\r
+ int ret = 1;\r
+ unsigned long error;\r
+ for (int tries = 0; tries < 5; tries++) {\r
+ if (WriteFile(logger->write_handle, address, bufsize, out, 0)) return 0;\r
+\r
+ error = GetLastError();\r
+ if (error == ERROR_IO_PENDING) {\r
+ /* Operation was successful pending flush to disk. */\r
+ return 0;\r
+ }\r
+\r
+ switch (error) {\r
+ /* Other end closed the pipe. */\r
+ case ERROR_BROKEN_PIPE:\r
+ ret = -1;\r
+ goto complain_write;\r
+\r
+ /* Couldn't lock the buffer. */\r
+ case ERROR_NOT_ENOUGH_QUOTA:\r
+ /* Out of disk space. */\r
+ case ERROR_DISK_FULL:\r
+ Sleep(2000 + tries * 3000);\r
+ ret = 1;\r
+ continue;\r
+\r
+ default:\r
+ /* We'll lose this line but try to read and write subsequent ones. */\r
+ ret = 1;\r
+ }\r
+ }\r
+\r
+complain_write:\r
+ if (! (*complained & COMPLAINED_WRITE)) log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_WRITEFILE_FAILED, logger->service_name, logger->path, error_string(error), 0);\r
+ *complained |= COMPLAINED_WRITE;\r
+ return ret;\r
+}\r
+\r
+/* Wrapper to be called in a new thread for logging. */\r
+unsigned long WINAPI log_and_rotate(void *arg) {\r
+ logger_t *logger = (logger_t *) arg;\r
+ if (! logger) return 1;\r
+\r
+ __int64 size;\r
+ BY_HANDLE_FILE_INFORMATION info;\r
+\r
+ /* Find initial file size. */\r
+ if (! GetFileInformationByHandle(logger->write_handle, &info)) logger->size = 0LL;\r
+ else {\r
+ ULARGE_INTEGER l;\r
+ l.HighPart = info.nFileSizeHigh;\r
+ l.LowPart = info.nFileSizeLow;\r
+ size = l.QuadPart;\r
+ }\r
+\r
+ char buffer[1024];\r
+ void *address;\r
+ unsigned long in, out;\r
+ unsigned long charsize = 0;\r
+ unsigned long error;\r
+ int ret;\r
+ int complained = 0;\r
+\r
+ while (true) {\r
+ /* Read data from the pipe. */\r
+ address = &buffer;\r
+ ret = try_read(logger, address, sizeof(buffer), &in, &complained);\r
+ if (ret < 0) {\r
+ CloseHandle(logger->read_handle);\r
+ CloseHandle(logger->write_handle);\r
+ HeapFree(GetProcessHeap(), 0, logger);\r
+ return 2;\r
+ }\r
+ else if (ret) continue;\r
+\r
+ if (*logger->rotate_online == NSSM_ROTATE_ONLINE_ASAP || (logger->size && size + (__int64) in >= logger->size)) {\r
+ /* Look for newline. */\r
+ unsigned long i;\r
+ for (i = 0; i < in; i++) {\r
+ if (buffer[i] == '\n') {\r
+ if (! charsize) charsize = guess_charsize(address, in);\r
+ i += charsize;\r
+\r
+ /* Write up to the newline. */\r
+ ret = try_write(logger, address, i, &out, &complained);\r
+ if (ret < 0) {\r
+ CloseHandle(logger->read_handle);\r
+ CloseHandle(logger->write_handle);\r
+ HeapFree(GetProcessHeap(), 0, logger);\r
+ return 3;\r
+ }\r
+ size += (__int64) out;\r
+\r
+ /* Rotate. */\r
+ *logger->rotate_online = NSSM_ROTATE_ONLINE;\r
+ TCHAR rotated[PATH_LENGTH];\r
+ rotated_filename(logger->path, rotated, _countof(rotated), 0);\r
+\r
+ /*\r
+ Ideally we'd try the rename first then close the handle but\r
+ MoveFile() will fail if the handle is still open so we must\r
+ risk losing everything.\r
+ */\r
+ if (logger->copy_and_truncate) FlushFileBuffers(logger->write_handle);\r
+ CloseHandle(logger->write_handle);\r
+ bool ok = true;\r
+ TCHAR *function;\r
+ if (logger->copy_and_truncate) {\r
+ function = _T("CopyFile()");\r
+ if (CopyFile(logger->path, rotated, TRUE)) {\r
+ HANDLE file = write_to_file(logger->path, NSSM_STDOUT_SHARING, 0, NSSM_STDOUT_DISPOSITION, NSSM_STDOUT_FLAGS);\r
+ Sleep(logger->rotate_delay);\r
+ SetFilePointer(file, 0, 0, FILE_BEGIN);\r
+ SetEndOfFile(file);\r
+ CloseHandle(file);\r
+ }\r
+ else ok = false;\r
+ }\r
+ else {\r
+ function = _T("MoveFile()");\r
+ if (! MoveFile(logger->path, rotated)) ok = false;\r
+ }\r
+ if (ok) {\r
+ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_ROTATED, logger->service_name, logger->path, rotated, 0);\r
+ size = 0LL;\r
+ }\r
+ else {\r
+ error = GetLastError();\r
+ if (error != ERROR_FILE_NOT_FOUND) {\r
+ if (! (complained & COMPLAINED_ROTATE)) log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_ROTATE_FILE_FAILED, logger->service_name, logger->path, function, rotated, error_string(error), 0);\r
+ complained |= COMPLAINED_ROTATE;\r
+ /* We can at least try to re-open the existing file. */\r
+ logger->disposition = OPEN_ALWAYS;\r
+ }\r
+ }\r
+\r
+ /* Reopen. */\r
+ logger->write_handle = write_to_file(logger->path, logger->sharing, 0, logger->disposition, logger->flags);\r
+ if (logger->write_handle == INVALID_HANDLE_VALUE) {\r
+ error = GetLastError();\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEFILE_FAILED, logger->path, error_string(error), 0);\r
+ /* Oh dear. Now we can't log anything further. */\r
+ CloseHandle(logger->read_handle);\r
+ CloseHandle(logger->write_handle);\r
+ HeapFree(GetProcessHeap(), 0, logger);\r
+ return 4;\r
+ }\r
+\r
+ /* Resume writing after the newline. */\r
+ address = (void *) ((char *) address + i);\r
+ in -= i;\r
+ }\r
+ }\r
+ }\r
+\r
+ if (! size) {\r
+ /* Write a BOM to the new file. */\r
+ if (! charsize) charsize = guess_charsize(address, in);\r
+ if (charsize == sizeof(wchar_t)) write_bom(logger, &out);\r
+ size += (__int64) out;\r
+ }\r
+\r
+ /* Write the data, if any. */\r
+ if (! in) continue;\r
+\r
+ ret = try_write(logger, address, in, &out, &complained);\r
+ size += (__int64) out;\r
+ if (ret < 0) {\r
+ CloseHandle(logger->read_handle);\r
+ CloseHandle(logger->write_handle);\r
+ HeapFree(GetProcessHeap(), 0, logger);\r
+ return 3;\r
+ }\r
+ }\r
+\r
+ CloseHandle(logger->read_handle);\r
+ CloseHandle(logger->write_handle);\r
+ HeapFree(GetProcessHeap(), 0, logger);\r
+ return 0;\r
+}\r
git://git.iain.cx/iain / nssm.git / blobdiff