Prints log messages to memory buffer. */
| 24 | |
| 25 | /** Prints log messages to memory buffer. */ |
| 26 | EFI_STATUS EFIAPI |
| 27 | MemLogPrint(IN MEM_LOG *MemLog, IN CHAR8 *Format, ...) |
| 28 | { |
| 29 | EFI_STATUS Status = EFI_SUCCESS; |
| 30 | VA_LIST Marker; |
| 31 | UINTN DataWritten; |
| 32 | |
| 33 | if (MemLog->Buffer == NULL) { |
| 34 | // init log buffer |
| 35 | MemLog->BufferSize = MEM_LOG_INITIAL_SIZE; |
| 36 | MemLog->Buffer = AllocateZeroPool(MemLog->BufferSize); |
| 37 | MemLog->Size = 0; |
| 38 | } |
| 39 | |
| 40 | if (MemLog->Size + MEM_LOG_MAX_LINE_SIZE > MemLog->BufferSize) { |
| 41 | // not enough place for max line - make buffer bigger |
| 42 | // but not too big (if something gets out of controll) |
| 43 | if (MemLog->BufferSize * 2 > MEM_LOG_MAX_SIZE) { |
| 44 | return EFI_OUT_OF_RESOURCES; |
| 45 | } |
| 46 | MemLog->Buffer = ReallocatePool(MemLog->BufferSize, MemLog->BufferSize * 2, MemLog->Buffer); |
| 47 | MemLog->BufferSize *= 2; |
| 48 | } |
| 49 | |
| 50 | // add log to buffer |
| 51 | VA_START (Marker, Format); |
| 52 | DataWritten = AsciiVSPrint( |
| 53 | MemLog->Buffer + MemLog->Size, |
| 54 | MemLog->BufferSize - MemLog->Size, |
| 55 | Format, |
| 56 | Marker); |
| 57 | VA_END (Marker); |
| 58 | MemLog->Size += DataWritten; |
| 59 | |
| 60 | #if LOG_TO_FILE >= 3 |
| 61 | // append to file while logging (at end of line) |
| 62 | if (DataWritten >= 1 && *(MemLog->Buffer + MemLog->Size - 1) == '\n') { |
| 63 | Status = FsAppendMemToFileToDefaultDir(LOG_TO_FILE_PATH, (VOID*)MemLog->Buffer, MemLog->Size); |
| 64 | MemLog->Size = 0; |
| 65 | } |
| 66 | #endif |
| 67 | |
| 68 | return Status; |
| 69 | } |
| 70 | |
| 71 | |
| 72 | /** Saves log to Log.txt in the same dir as driver. */ |
no test coverage detected