EXTERN_C NTSTATUS LogInitialization(_In_ ULONG Flag,
_In_opt_ const wchar_t *LogFilePath,
_In_opt_ PDEVICE_OBJECT DeviceObject) {
PAGED_CODE();
auto status = STATUS_SUCCESS;
g_LogpDebugFlag = Flag;
if (DeviceObject && !LogFilePath) {
return STATUS_INVALID_PARAMETER;
}
// Initialize a log file if a log file path is specified.
if (LogFilePath) {
status = LogpInitializeBufferInfo(LogFilePath, DeviceObject,
&g_LogpLogBufferInfo);
if (!NT_SUCCESS(status)) {
return status;
}
}
// Test the log.
status = LOG_INFO(
"Log system was initialized (Flag= %08x, Buffer= %p %p, File= %S).", Flag,
g_LogpLogBufferInfo.LogBuffer1, g_LogpLogBufferInfo.LogBuffer2,
LogFilePath);
if (!NT_SUCCESS(status)) {
goto Fail;
}
return status;
Fail:
if (LogFilePath) {
LogpFinalizeBufferInfo(DeviceObject, &g_LogpLogBufferInfo);
}
return status;
}
_Use_decl_annotations_ NTSTATUS
LogInitialization(ULONG flag, const wchar_t *log_file_path) {
PAGED_CODE();
auto status = STATUS_SUCCESS;
g_logp_debug_flag = flag;
// Initialize a log file if a log file path is specified.
bool need_reinitialization = false;
if (log_file_path) {
status = LogpInitializeBufferInfo(log_file_path, &g_logp_log_buffer_info);
if (status == STATUS_REINITIALIZATION_NEEDED) {
need_reinitialization = true;
} else if (!NT_SUCCESS(status)) {
return status;
}
}
// Test the log.
status = HYPERPLATFORM_LOG_INFO("Log has been %sinitialized.",
(need_reinitialization ? "partially " : ""));
if (!NT_SUCCESS(status)) {
goto Fail;
}
HYPERPLATFORM_LOG_DEBUG("Info= %p, Buffer= %p %p, File= %S",
&g_logp_log_buffer_info,
g_logp_log_buffer_info.log_buffer1,
g_logp_log_buffer_info.log_buffer2, log_file_path);
return (need_reinitialization ? STATUS_REINITIALIZATION_NEEDED
: STATUS_SUCCESS);
Fail:;
if (log_file_path) {
LogpFinalizeBufferInfo(&g_logp_log_buffer_info);
}
return status;
}
