diff options
| author | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-09-25 04:56:53 +0000 |
|---|---|---|
| committer | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-09-25 04:56:53 +0000 |
| commit | e389c39b7b6e0fcf4ca6f4ef5fefcf500f7be2d1 (patch) | |
| tree | 89731227982ccf65a51bae790a766de778de45b8 /MdePkg/Library/BasePrintLib/PrintLibInternal.c | |
| parent | 30ab8a129635887190616b898e6a61b6145f6012 (diff) | |
| download | edk2-platforms-e389c39b7b6e0fcf4ca6f4ef5fefcf500f7be2d1.tar.xz | |
Clean up code according to code review.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5986 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BasePrintLib/PrintLibInternal.c')
| -rw-r--r-- | MdePkg/Library/BasePrintLib/PrintLibInternal.c | 592 |
1 files changed, 589 insertions, 3 deletions
diff --git a/MdePkg/Library/BasePrintLib/PrintLibInternal.c b/MdePkg/Library/BasePrintLib/PrintLibInternal.c index e1e8c08c55..14cb154713 100644 --- a/MdePkg/Library/BasePrintLib/PrintLibInternal.c +++ b/MdePkg/Library/BasePrintLib/PrintLibInternal.c @@ -12,13 +12,45 @@ **/
-
-
-
#include "PrintLibInternal.h"
+#define WARNING_STATUS_NUMBER 4
+#define ERROR_STATUS_NUMBER 24
+
GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 mHexStr[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
+GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 *mStatusString[] = {
+ "Success", // RETURN_SUCCESS = 0
+ "Warning Unknown Glyph", // RETURN_WARN_UNKNOWN_GLYPH = 1
+ "Warning Delete Failure", // RETURN_WARN_DELETE_FAILURE = 2
+ "Warning Write Failure", // RETURN_WARN_WRITE_FAILURE = 3
+ "Warning Buffer Too Small", // RETURN_WARN_BUFFER_TOO_SMALL = 4
+ "Load Error", // RETURN_LOAD_ERROR = 1 | MAX_BIT
+ "Invalid Parameter", // RETURN_INVALID_PARAMETER = 2 | MAX_BIT
+ "Unsupported", // RETURN_UNSUPPORTED = 3 | MAX_BIT
+ "Bad Buffer Size", // RETURN_BAD_BUFFER_SIZE = 4 | MAX_BIT
+ "Buffer Too Small", // RETURN_BUFFER_TOO_SMALL, = 5 | MAX_BIT
+ "Not Ready", // RETURN_NOT_READY = 6 | MAX_BIT
+ "Device Error", // RETURN_DEVICE_ERROR = 7 | MAX_BIT
+ "Write Protected", // RETURN_WRITE_PROTECTED = 8 | MAX_BIT
+ "Out of Resources", // RETURN_OUT_OF_RESOURCES = 9 | MAX_BIT
+ "Volume Corrupt", // RETURN_VOLUME_CORRUPTED = 10 | MAX_BIT
+ "Volume Full", // RETURN_VOLUME_FULL = 11 | MAX_BIT
+ "No Media", // RETURN_NO_MEDIA = 12 | MAX_BIT
+ "Media changed", // RETURN_MEDIA_CHANGED = 13 | MAX_BIT
+ "Not Found", // RETURN_NOT_FOUND = 14 | MAX_BIT
+ "Access Denied", // RETURN_ACCESS_DENIED = 15 | MAX_BIT
+ "No Response", // RETURN_NO_RESPONSE = 16 | MAX_BIT
+ "No mapping", // RETURN_NO_MAPPING = 17 | MAX_BIT
+ "Time out", // RETURN_TIMEOUT = 18 | MAX_BIT
+ "Not started", // RETURN_NOT_STARTED = 19 | MAX_BIT
+ "Already started", // RETURN_ALREADY_STARTED = 20 | MAX_BIT
+ "Aborted", // RETURN_ABORTED = 21 | MAX_BIT
+ "ICMP Error", // RETURN_ICMP_ERROR = 22 | MAX_BIT
+ "TFTP Error", // RETURN_TFTP_ERROR = 23 | MAX_BIT
+ "Protocol Error" // RETURN_PROTOCOL_ERROR = 24 | MAX_BIT
+};
+
/**
Internal function that places the character into the Buffer.
@@ -234,3 +266,557 @@ BasePrintLibConvertValueToString ( return ((Buffer - OriginalBuffer) / Increment);
}
+/**
+ Worker function that produces a Null-terminated string in an output buffer
+ based on a Null-terminated format string and a VA_LIST argument list.
+
+ VSPrint function to process format and place the results in Buffer. Since a
+ VA_LIST is used this rountine allows the nesting of Vararg routines. Thus
+ this is the main print working routine.
+
+ @param Buffer Character buffer to print the results of the parsing
+ of Format into.
+ @param BufferSize Maximum number of characters to put into buffer.
+ @param Flags Intial flags value.
+ Can only have FORMAT_UNICODE and OUTPUT_UNICODE set.
+ @param Format Null-terminated format string.
+ @param Marker Vararg list consumed by processing Format.
+
+ @return Number of characters printed not including the Null-terminator.
+
+**/
+UINTN
+BasePrintLibVSPrint (
+ OUT CHAR8 *Buffer,
+ IN UINTN BufferSize,
+ IN UINTN Flags,
+ IN CONST CHAR8 *Format,
+ IN VA_LIST Marker
+ )
+{
+ CHAR8 *OriginalBuffer;
+ CHAR8 *EndBuffer;
+ CHAR8 ValueBuffer[MAXIMUM_VALUE_CHARACTERS];
+ UINTN BytesPerOutputCharacter;
+ UINTN BytesPerFormatCharacter;
+ UINTN FormatMask;
+ UINTN FormatCharacter;
+ UINTN Width;
+ UINTN Precision;
+ INT64 Value;
+ CONST CHAR8 *ArgumentString;
+ UINTN Character;
+ GUID *TmpGuid;
+ TIME *TmpTime;
+ UINTN Count;
+ UINTN ArgumentMask;
+ INTN BytesPerArgumentCharacter;
+ UINTN ArgumentCharacter;
+ BOOLEAN Done;
+ UINTN Index;
+ CHAR8 Prefix;
+ BOOLEAN ZeroPad;
+ BOOLEAN Comma;
+ UINTN Digits;
+ UINTN Radix;
+ RETURN_STATUS Status;
+
+ if (BufferSize == 0) {
+ return 0;
+ }
+ ASSERT (Buffer != NULL);
+
+ if ((Flags & OUTPUT_UNICODE) != 0) {
+ BytesPerOutputCharacter = 2;
+ } else {
+ BytesPerOutputCharacter = 1;
+ }
+
+ //
+ // Reserve space for the Null terminator.
+ //
+ BufferSize--;
+ OriginalBuffer = Buffer;
+ //
+ // Set the tag for the end of the input Buffer.
+ //
+ EndBuffer = Buffer + BufferSize * BytesPerOutputCharacter;
+
+ if ((Flags & FORMAT_UNICODE) != 0) {
+ //
+ // Make sure format string cannot contain more than PcdMaximumUnicodeStringLength
+ // Unicode characters if PcdMaximumUnicodeStringLength is not zero.
+ //
+ ASSERT (StrSize ((CHAR16 *) Format) != 0);
+ BytesPerFormatCharacter = 2;
+ FormatMask = 0xffff;
+ } else {
+ //
+ // Make sure format string cannot contain more than PcdMaximumAsciiStringLength
+ // Ascii characters if PcdMaximumAsciiStringLength is not zero.
+ //
+ ASSERT (AsciiStrSize (Format) != 0);
+ BytesPerFormatCharacter = 1;
+ FormatMask = 0xff;
+ }
+
+
+
+ //
+ // Get the first character from the format string
+ //
+ FormatCharacter = ((*Format & 0xff) | (*(Format + 1) << 8)) & FormatMask;
+
+ //
+ // Loop until the end of the format string is reached or the output buffer is full
+ //
+ while (FormatCharacter != 0 && Buffer < EndBuffer) {
+ //
+ // Clear all the flag bits except those that may have been passed in
+ //
+ Flags &= (OUTPUT_UNICODE | FORMAT_UNICODE);
+
+ //
+ // Set the default width to zero, and the default precision to 1
+ //
+ Width = 0;
+ Precision = 1;
+ Prefix = 0;
+ Comma = FALSE;
+ ZeroPad = FALSE;
+ Count = 0;
+ Digits = 0;
+
+ switch (FormatCharacter) {
+ case '%':
+ //
+ // Parse Flags and Width
+ //
+ for (Done = FALSE; !Done; ) {
+ Format += BytesPerFormatCharacter;
+ FormatCharacter = ((*Format & 0xff) | (*(Format + 1) << 8)) & FormatMask;
+ switch (FormatCharacter) {
+ case '.':
+ Flags |= PRECISION;
+ break;
+ case '-':
+ Flags |= LEFT_JUSTIFY;
+ break;
+ case '+':
+ Flags |= PREFIX_SIGN;
+ break;
+ case ' ':
+ Flags |= PREFIX_BLANK;
+ break;
+ case ',':
+ Flags |= COMMA_TYPE;
+ break;
+ case 'L':
+ case 'l':
+ Flags |= LONG_TYPE;
+ break;
+ case '*':
+ if ((Flags & PRECISION) == 0) {
+ Flags |= PAD_TO_WIDTH;
+ Width = VA_ARG (Marker, UINTN);
+ } else {
+ Precision = VA_ARG (Marker, UINTN);
+ }
+ break;
+ case '0':
+ if ((Flags & PRECISION) == 0) {
+ Flags |= PREFIX_ZERO;
+ }
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ for (Count = 0; ((FormatCharacter >= '0') && (FormatCharacter <= '9')); ){
+ Count = (Count * 10) + FormatCharacter - '0';
+ Format += BytesPerFormatCharacter;
+ FormatCharacter = ((*Format & 0xff) | (*(Format + 1) << 8)) & FormatMask;
+ }
+ Format -= BytesPerFormatCharacter;
+ if ((Flags & PRECISION) == 0) {
+ Flags |= PAD_TO_WIDTH;
+ Width = Count;
+ } else {
+ Precision = Count;
+ }
+ break;
+
+ case '\0':
+ //
+ // Make no output if Format string terminates unexpectedly when
+ // looking up for flag, width, precision and type.
+ //
+ Format -= BytesPerFormatCharacter;
+ Precision = 0;
+ //
+ // break skipped on purpose.
+ //
+ default:
+ Done = TRUE;
+ break;
+ }
+ }
+
+ //
+ // Handle each argument type
+ //
+ switch (FormatCharacter) {
+ case 'p':
+ //
+ // Flag space, +, 0, L & l are invalid for type p.
+ //
+ Flags &= ~(PREFIX_BLANK | PREFIX_SIGN | PREFIX_ZERO | LONG_TYPE);
+ if (sizeof (VOID *) > 4) {
+ Flags |= LONG_TYPE;
+ }
+ case 'X':
+ Flags |= PREFIX_ZERO;
+ //
+ // break skipped on purpose
+ //
+ case 'x':
+ Flags |= RADIX_HEX;
+ //
+ // break skipped on purpose
+ //
+ case 'd':
+ if ((Flags & LONG_TYPE) == 0) {
+ Value = (VA_ARG (Marker, int));
+ } else {
+ Value = VA_ARG (Marker, INT64);
+ }
+ if ((Flags & PREFIX_BLANK) != 0) {
+ Prefix = ' ';
+ }
+ if ((Flags & PREFIX_SIGN) != 0) {
+ Prefix = '+';
+ }
+ if ((Flags & COMMA_TYPE) != 0) {
+ Comma = TRUE;
+ }
+ if ((Flags & RADIX_HEX) == 0) {
+ Radix = 10;
+ if (Comma) {
+ Flags &= (~PREFIX_ZERO);
+ Precision = 1;
+ }
+ if (Value < 0) {
+ Flags |= PREFIX_SIGN;
+ Prefix = '-';
+ Value = -Value;
+ }
+ } else {
+ Radix = 16;
+ Comma = FALSE;
+ if ((Flags & LONG_TYPE) == 0 && Value < 0) {
+ Value = (unsigned int)Value;
+ }
+ }
+ //
+ // Convert Value to a reversed string
+ //
+ Count = BasePrintLibValueToString (ValueBuffer, Value, Radix);
+ if (Value == 0 && Precision == 0) {
+ Count = 0;
+ }
+ ArgumentString = (CHAR8 *)ValueBuffer + Count;
+
+ Digits = Count % 3;
+ if (Digits != 0) {
+ Digits = 3 - Digits;
+ }
+ if (Comma && Count != 0) {
+ Count += ((Count - 1) / 3);
+ }
+ if (Prefix != 0) {
+ Count++;
+ Precision++;
+ }
+ Flags |= ARGUMENT_REVERSED;
+ ZeroPad = TRUE;
+ if ((Flags & PREFIX_ZERO) != 0) {
+ if ((Flags & LEFT_JUSTIFY) == 0) {
+ if ((Flags & PAD_TO_WIDTH) != 0) {
+ if ((Flags & PRECISION) == 0) {
+ Precision = Width;
+ }
+ }
+ }
+ }
+ break;
+
+ case 's':
+ case 'S':
+ Flags |= ARGUMENT_UNICODE;
+ //
+ // break skipped on purpose
+ //
+ case 'a':
+ ArgumentString = (CHAR8 *)VA_ARG (Marker, CHAR8 *);
+ if (ArgumentString == NULL) {
+ Flags &= (~ARGUMENT_UNICODE);
+ ArgumentString = "<null string>";
+ }
+ //
+ // Set the default precision for string to be zero if not specified.
+ //
+ if ((Flags & PRECISION) == 0) {
+ Precision = 0;
+ }
+ break;
+
+ case 'c':
+ Character = VA_ARG (Marker, UINTN) & 0xffff;
+ ArgumentString = (CHAR8 *)&Character;
+ Flags |= ARGUMENT_UNICODE;
+ break;
+
+ case 'g':
+ TmpGuid = VA_ARG (Marker, GUID *);
+ if (TmpGuid == NULL) {
+ ArgumentString = "<null guid>";
+ } else {
+ BasePrintLibSPrint (
+ ValueBuffer,
+ MAXIMUM_VALUE_CHARACTERS,
+ 0,
+ "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ TmpGuid->Data1,
+ TmpGuid->Data2,
+ TmpGuid->Data3,
+ TmpGuid->Data4[0],
+ TmpGuid->Data4[1],
+ TmpGuid->Data4[2],
+ TmpGuid->Data4[3],
+ TmpGuid->Data4[4],
+ TmpGuid->Data4[5],
+ TmpGuid->Data4[6],
+ TmpGuid->Data4[7]
+ );
+ ArgumentString = ValueBuffer;
+ }
+ break;
+
+ case 't':
+ TmpTime = VA_ARG (Marker, TIME *);
+ if (TmpTime == NULL) {
+ ArgumentString = "<null time>";
+ } else {
+ BasePrintLibSPrint (
+ ValueBuffer,
+ MAXIMUM_VALUE_CHARACTERS,
+ 0,
+ "%02d/%02d/%04d %02d:%02d",
+ TmpTime->Month,
+ TmpTime->Day,
+ TmpTime->Year,
+ TmpTime->Hour,
+ TmpTime->Minute
+ );
+ ArgumentString = ValueBuffer;
+ }
+ break;
+
+ case 'r':
+ Status = VA_ARG (Marker, RETURN_STATUS);
+ ArgumentString = ValueBuffer;
+ if (RETURN_ERROR (Status)) {
+ //
+ // Clear error bit
+ //
+ Index = Status & ~MAX_BIT;
+ if (Index > 0 && Index <= ERROR_STATUS_NUMBER) {
+ ArgumentString = mStatusString [Index + WARNING_STATUS_NUMBER];
+ }
+ } else {
+ Index = Status;
+ if (Index <= WARNING_STATUS_NUMBER) {
+ ArgumentString = mStatusString [Index];
+ }
+ }
+ if (ArgumentString == ValueBuffer) {
+ BasePrintLibSPrint ((CHAR8 *) ValueBuffer, MAXIMUM_VALUE_CHARACTERS, 0, "%08X", Status);
+ }
+ break;
+
+ case '\n':
+ ArgumentString = "\n\r";
+ break;
+
+ case '%':
+ default:
+ //
+ // if the type is '%' or unknown, then print it to the screen
+ //
+ ArgumentString = (CHAR8 *)&FormatCharacter;
+ Flags |= ARGUMENT_UNICODE;
+ break;
+ }
+ break;
+
+ case '\n':
+ ArgumentString = "\n\r";
+ break;
+
+ default:
+ ArgumentString = (CHAR8 *)&FormatCharacter;
+ Flags |= ARGUMENT_UNICODE;
+ break;
+ }
+
+ //
+ // Retrieve the ArgumentString attriubutes
+ //
+ if ((Flags & ARGUMENT_UNICODE) != 0) {
+ ArgumentMask = 0xffff;
+ BytesPerArgumentCharacter = 2;
+ } else {
+ ArgumentMask = 0xff;
+ BytesPerArgumentCharacter = 1;
+ }
+ if ((Flags & ARGUMENT_REVERSED) != 0) {
+ BytesPerArgumentCharacter = -BytesPerArgumentCharacter;
+ } else {
+ //
+ // Compute the number of characters in ArgumentString and store it in Count
+ // ArgumentString is either null-terminated, or it contains Precision characters
+ //
+ for (Count = 0; Count < Precision || ((Flags & PRECISION) == 0); Count++) {
+ ArgumentCharacter = ((ArgumentString[Count * BytesPerArgumentCharacter] & 0xff) | ((ArgumentString[Count * BytesPerArgumentCharacter + 1]) << 8)) & ArgumentMask;
+ if (ArgumentCharacter == 0) {
+ break;
+ }
+ }
+ }
+
+ if (Precision < Count) {
+ Precision = Count;
+ }
+
+ //
+ // Pad before the string
+ //
+ if ((Flags & (PAD_TO_WIDTH | LEFT_JUSTIFY)) == (PAD_TO_WIDTH)) {
+ Buffer = BasePrintLibFillBuffer (Buffer, EndBuffer, Width - Precision, ' ', BytesPerOutputCharacter);
+ }
+
+ if (ZeroPad) {
+ if (Prefix != 0) {
+ Buffer = BasePrintLibFillBuffer (Buffer, EndBuffer, 1, Prefix, BytesPerOutputCharacter);
+ }
+ Buffer = BasePrintLibFillBuffer (Buffer, EndBuffer, Precision - Count, '0', BytesPerOutputCharacter);
+ } else {
+ Buffer = BasePrintLibFillBuffer (Buffer, EndBuffer, Precision - Count, ' ', BytesPerOutputCharacter);
+ if (Prefix != 0) {
+ Buffer = BasePrintLibFillBuffer (Buffer, EndBuffer, 1, Prefix, BytesPerOutputCharacter);
+ }
+ }
+
+ //
+ // Output the Prefix character if it is present
+ //
+ Index = 0;
+ if (Prefix != 0) {
+ Index++;
+ }
+
+ //
+ // Copy the string into the output buffer performing the required type conversions
+ //
+ while (Index < Count) {
+ ArgumentCharacter = ((*ArgumentString & 0xff) | (*(ArgumentString + 1) << 8)) & ArgumentMask;
+
+ Buffer = BasePrintLibFillBuffer (Buffer, EndBuffer, 1, ArgumentCharacter, BytesPerOutputCharacter);
+ ArgumentString += BytesPerArgumentCharacter;
+ Index++;
+ if (Comma) {
+ Digits++;
+ if (Digits == 3) {
+ Digits = 0;
+ Index++;
+ if (Index < Count) {
+ Buffer = BasePrintLibFillBuffer (Buffer, EndBuffer, 1, ',', BytesPerOutputCharacter);
+ }
+ }
+ }
+ }
+
+ //
+ // Pad after the string
+ //
+ if ((Flags & (PAD_TO_WIDTH | LEFT_JUSTIFY)) == (PAD_TO_WIDTH | LEFT_JUSTIFY)) {
+ Buffer = BasePrintLibFillBuffer (Buffer, EndBuffer, Width - Precision, ' ', BytesPerOutputCharacter);
+ }
+
+ //
+ // Get the next character from the format string
+ //
+ Format += BytesPerFormatCharacter;
+
+ //
+ // Get the next character from the format string
+ //
+ FormatCharacter = ((*Format & 0xff) | (*(Format + 1) << 8)) & FormatMask;
+ }
+
+ //
+ // Null terminate the Unicode or ASCII string
+ //
+ BasePrintLibFillBuffer (Buffer, EndBuffer + BytesPerOutputCharacter, 1, 0, BytesPerOutputCharacter);
+ //
+ // Make sure output buffer cannot contain more than PcdMaximumUnicodeStringLength
+ // Unicode characters if PcdMaximumUnicodeStringLength is not zero.
+ //
+ ASSERT ((((Flags & OUTPUT_UNICODE) == 0)) || (StrSize ((CHAR16 *) OriginalBuffer) != 0));
+ //
+ // Make sure output buffer cannot contain more than PcdMaximumAsciiStringLength
+ // ASCII characters if PcdMaximumAsciiStringLength is not zero.
+ //
+ ASSERT ((((Flags & OUTPUT_UNICODE) != 0)) || (AsciiStrSize (OriginalBuffer) != 0));
+
+ return ((Buffer - OriginalBuffer) / BytesPerOutputCharacter);
+}
+
+/**
+ Worker function that produces a Null-terminated string in an output buffer
+ based on a Null-terminated format string and variable argument list.
+
+ VSPrint function to process format and place the results in Buffer. Since a
+ VA_LIST is used this rountine allows the nesting of Vararg routines. Thus
+ this is the main print working routine.
+
+ @param StartOfBuffer Character buffer to print the results of the parsing
+ of Format into.
+ @param BufferSize Maximum number of characters to put into buffer.
+ Zero means no limit.
+ @param Flags Intial flags value.
+ Can only have FORMAT_UNICODE and OUTPUT_UNICODE set
+ @param FormatString Null-terminated format string.
+ @param ... The variable argument list.
+
+ @return Number of characters printed not including the Null-terminator.
+
+**/
+UINTN
+BasePrintLibSPrint (
+ OUT CHAR8 *StartOfBuffer,
+ IN UINTN BufferSize,
+ IN UINTN Flags,
+ IN CONST CHAR8 *FormatString,
+ ...
+ )
+{
+ VA_LIST Marker;
+
+ VA_START (Marker, FormatString);
+ return BasePrintLibVSPrint (StartOfBuffer, BufferSize, Flags, FormatString, Marker);
+}
|