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ComposedImageWriter.class.st
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ComposedImageWriter.class.st
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Class {
#name : #ComposedImageWriter,
#superclass : #AbstractComposedImageAccess,
#traits : 'TImageWriter',
#classTraits : 'TImageWriter classTrait',
#category : #'VMMaker-ImageFormat'
}
{ #category : #writing }
ComposedImageWriter >> ensureDeleteSegments: imageFileName [
| segmentIndex r |
segmentIndex := 0.
[ self existSegment: segmentIndex inImage: imageFileName ]
whileTrue: [
r := self unlink: (self segmentMetadataFile: segmentIndex inImage: imageFileName).
r ~= 0 ifTrue: [
self logError: 'Error deleting %s' _: (self segmentMetadataFile: segmentIndex inImage: imageFileName).
^ coInterpreter primitiveFail. ].
r := self unlink: (self segmentDataFile: segmentIndex inImage: imageFileName).
r ~= 0 ifTrue: [
self logError: 'Error deleting %s' _: (self segmentDataFile: segmentIndex inImage: imageFileName).
^ coInterpreter primitiveFail. ].
segmentIndex := segmentIndex + 1 ]
]
{ #category : #writing }
ComposedImageWriter >> unlink: aFileName [
<doNotGenerate>
| fileReference |
fileReference := aFileName asFileReference.
fileReference exists ifFalse: [ ^ -1 ].
fileReference delete.
^ 0
]
{ #category : #writing }
ComposedImageWriter >> writeDataStatingAt: start withSize: size inFileName: fullFileName [
<var: #dataFile type: #sqImageFile>
<var: #nWritten type: #'size_t'>
<returnTypeC: #'size_t'>
| dataFile nWritten |
dataFile := self sqImageFile: fullFileName Open: 'wb'.
dataFile ifNil: [ "could not open the file for writing"
^ self primitiveFail ].
nWritten := 0.
size > 0 ifTrue:[
nWritten := self
sq: start
Image: 1
File: size
Write: dataFile].
self sqImageFileClose: dataFile.
^ nWritten
]
{ #category : #writing }
ComposedImageWriter >> writeHeaderFile: imageFileName fromHeader: header [
<inline: true>
<var: #file type: #sqImageFile>
<var: #buffer declareC: 'char buffer[255]'>
| buffer file |
self simulationOnly: [ buffer := nil ].
file := self sqImageFile: (self headerFileNameinImage: imageFileName into: buffer bufferSize: 255) Open: 'w'.
file ifNil: [ "could not open the file for writing"
^ self primitiveFail ].
self writeHeaderSTON: header toFile: file.
self sqImageFileClose: file.
]
{ #category : #writing }
ComposedImageWriter >> writeHeaderSTON: header toFile: f [
self writeSTON: header toFile: f
]
{ #category : #api }
ComposedImageWriter >> writeImageFile: imageFileName fromHeader: header [
"Write one image header file + many segments files (metadata & data per segment)"
<inline: false>
<var: #imageFileName declareC: 'char *imageFileName'>
<var: #oldSpaceBytesWritten type:#'size_t'>
<var: #permanentSpaceBytesWritten type:#'size_t'>
<var: #bytesWritten type:#'size_t'>
<var: #header type: #SpurImageHeaderStruct> "TODO: Rename this class"
| oldSpaceBytesWritten permanentSpaceBytesWritten bytesWritten |
self logDebug: 'Writing snapshot %s' _: imageFileName.
self createImageDirectory: imageFileName.
self writeHeaderFile: imageFileName fromHeader: header.
self flag: #TODO. "success: header imageHeaderSize?"
oldSpaceBytesWritten := self writeImageSegments: imageFileName.
permanentSpaceBytesWritten := self writeImagePermanentSpace: imageFileName.
bytesWritten := oldSpaceBytesWritten + permanentSpaceBytesWritten.
coInterpreter success: bytesWritten = header dataSize
]
{ #category : #'perm - space' }
ComposedImageWriter >> writeImagePermanentSpace: imageFileName [
<returnTypeC: #'size_t'>
self writePermanentSpaceMetadata: imageFileName.
^ self writePermanentSpaceData: imageFileName
]
{ #category : #segments }
ComposedImageWriter >> writeImageSegments: imageFileName [
<var: 'aSegment' type:#'SpurSegmentInfo *'>
<returnTypeC: #'size_t'>
self beginWriteImageSegments.
self ensureDeleteSegments: imageFileName.
coInterpreter failed ifTrue: [ ^ 0 ].
^ segmentManager withNonEmptySegmentsDo: [ :aSegment :segmentIndex |
self
writeSegment: aSegment
nextIndex: segmentIndex
inImage: imageFileName ].
]
{ #category : #writing }
ComposedImageWriter >> writeMetadata: metadata inFileName: fullFileName [
<var: #metadataFile type: #sqImageFile>
<var: #metadata type: #ComposedMetadataStruct>
| metadataFile |
metadataFile := self sqImageFile: fullFileName Open: 'w'.
metadataFile ifNil: [ "could not open the file for writing"
^ self primitiveFail ].
self writeSTON: metadata toFile: metadataFile.
self sqImageFileClose: metadataFile.
]
{ #category : #'perm - space' }
ComposedImageWriter >> writePermanentSpaceData: imageFileName [
<returnTypeC: #'size_t'>
^ self
writeDataStatingAt: objectMemory getMemoryMap permSpaceStart asVoidPointer
withSize: objectMemory totalBytesInPermanentSpace
inFileName: (self permSpaceDataFileInImage: imageFileName)
]
{ #category : #'perm - space' }
ComposedImageWriter >> writePermanentSpaceMetadata: imageFileName [
<var: #metadata type: #ComposedMetadataStruct>
| metadata |
self simulationOnly: [ metadata := ComposedMetadataStruct new ].
metadata startAddress: objectMemory getMemoryMap permSpaceStart.
metadata dataSize: objectMemory totalBytesInPermanentSpace.
self
writeMetadata: metadata
inFileName: (self permSpaceMetadataFileNameInImage: imageFileName)
]
{ #category : #writing }
ComposedImageWriter >> writeSTON: aStruct toFile: f [
<inline: true>
aStruct withStructNameDo: [ :name | self fprintf: f _: self headFormat _: name ].
aStruct withFieldsDo: [ :fieldName :fieldValue |
self fprintf: f _: self fieldFormat _: fieldName _: (self cCoerce: fieldValue to: #sqInt)]
separatedBy: [ self fprintf: f _: ',\n'].
self fprintf: f _: '\n}'.
]
{ #category : #segments }
ComposedImageWriter >> writeSegment: segment nextIndex: segmentIndex inImage: imageFileName [
<inline: false>
<var: 'segment' type: #'SpurSegmentInfo *'>
<var: #imageFileName declareC: 'char *imageFileName'>
<returnTypeC: #'size_t'>
self logDebug: (self msgFormat: 'Segment Start: ') _: segment segStart.
self logDebug: (self msgFormat: 'Segment Size: ') _: segment segSize.
self writeSegmentMetadata: segment nextIndex: segmentIndex inImage: imageFileName.
^ self writeSegmentData: segment nextIndex: segmentIndex inImage: imageFileName.
]
{ #category : #segments }
ComposedImageWriter >> writeSegmentData: segment nextIndex: segmentIndex inImage: imageFileName [
<returnTypeC: #'size_t'>
^ self
writeDataStatingAt: segment segStart asVoidPointer
withSize: segment segSize
inFileName: (self segmentDataFile: segmentIndex inImage: imageFileName)
]
{ #category : #segments }
ComposedImageWriter >> writeSegmentMetadata: segment nextIndex: segmentIndex inImage: imageFileName [
<var: #metadata type: #ComposedMetadataStruct>
| metadata |
self simulationOnly: [ metadata := ComposedMetadataStruct new. ].
metadata startAddress: segment segStart.
metadata dataSize: segment segSize.
self
writeMetadata: metadata
inFileName: (self segmentMetadataFile: segmentIndex inImage: imageFileName)
]
{ #category : #writing }
ComposedImageWriter >> writeSegmentSTON: segmentMetadata toFile: f [
<var: #f type: #sqImageFile>
<var: #segmentMetadata type: #ComposedMetadataStruct>
self writeSTON: segmentMetadata toFile: f
]