oaMapWindow Class Reference
Inheritance diagram for oaMapWindow:
Detailed Description
This utility class is used to read data from and write data to a memory-mapped disk file.
The primary usage of oaMapWindow is internal to OpenAccess. It is public because applications that do pcell evaluation can use them to store private data in a pcell supermaster. See oaPackedData for a discussion of this usage. The only function that pcell evaluators need to call on an oaMapWindow is data(). They do not ever construct a class instance.
Member Function Documentation
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This function returns a reference to the oaPackedData interface that is associated with this mapWindow. Use this function to access the functions on oaPackedData to read and write data from and to this mapWindow. |
| oaByte * oaMapWindow::getBytes |
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oaUInt4 |
loc |
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const [inline] |
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This function returns the byte pointer pointing to the specified location. |
| oaUInt4 oaMapWindow::getLoc |
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oaUInt8 |
offsetIn |
) |
const [inline] |
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This function returns the location within the window of offsetIn, which must be currently mapped. |
| oaUInt8 oaMapWindow::getOffset |
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const [inline] |
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This function returns the offset of this mapWindow. |
| oaUInt4 oaMapWindow::getSize |
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const [inline] |
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This function returns the size of this mapWindow. |
| oaBoolean oaMapWindow::isMapped |
( |
oaUInt4 |
sizeIn, |
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oaUInt8 |
offsetIn, |
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oaUInt4 & |
loc |
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) |
const |
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This function returns true if the window is mapped and covers sizeIn bytes starting at offsetIn. The location within the window of offsetIn is returned in loc. |
| oaBoolean oaMapWindow::isMapped |
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const [inline] |
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This function returns true if this mapWindow is mapped. |
| oaByte & oaMapWindow::operator[] |
( |
oaUInt4 |
index |
) |
[inline] |
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This function returns the reference to a byte in this mapWindow at the specified index. |
The documentation for this class was generated from the following files:
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