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Lines Matching refs:Buffer

170  * DESCRIPTION: Copy a buffer object to another buffer object.
180     UINT8                   *Buffer;
193     /* We know that SourceDesc is a buffer by now */
195     Buffer = ACPI_CAST_PTR (UINT8, SourceDesc->Buffer.Pointer);
196     Length = SourceDesc->Buffer.Length;
199      * If target is a buffer of length zero or is a static buffer,
200      * allocate a new buffer of the proper length
202     if ((TargetDesc->Buffer.Length == 0) ||
205         TargetDesc->Buffer.Pointer = ACPI_ALLOCATE (Length);
206         if (!TargetDesc->Buffer.Pointer)
211         TargetDesc->Buffer.Length = Length;
214     /* Copy source buffer to target buffer */
216     if (Length <= TargetDesc->Buffer.Length)
218         /* Clear existing buffer and copy in the new one */
220         memset (TargetDesc->Buffer.Pointer, 0, TargetDesc->Buffer.Length);
221         memcpy (TargetDesc->Buffer.Pointer, Buffer, Length);
225          * NOTE: ACPI versions up to 3.0 specified that the buffer must be
226          * truncated if the string is smaller than the buffer. However, "other"
228          * standard. ACPI 3.0A changes this behavior such that the buffer
234          * If the original source was a string, we must truncate the buffer,
235          * according to the ACPI spec. Integer-to-Buffer and Buffer-to-Buffer
236          * copy must not truncate the original buffer.
242             TargetDesc->Buffer.Length = Length;
250         memcpy (TargetDesc->Buffer.Pointer, Buffer,
251             TargetDesc->Buffer.Length);
254             "Truncating source buffer from %X to %X\n",
255             Length, TargetDesc->Buffer.Length));
260     TargetDesc->Buffer.Flags = SourceDesc->Buffer.Flags;
285     UINT8                   *Buffer;
300     Buffer = ACPI_CAST_PTR (UINT8, SourceDesc->String.Pointer);
311          * String will fit in existing non-static buffer.
316         memcpy (TargetDesc->String.Pointer, Buffer, Length);
321          * Free the current buffer, then allocate a new buffer
341         memcpy (TargetDesc->String.Pointer, Buffer, Length);