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Threadpool for disk IO, greenlets for metadata

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This commit is contained in:
Joel Collins 2020-06-11 12:01:19 +01:00
parent 7c9f42f7f3
commit 6bf37a0985
2 changed files with 35 additions and 39 deletions
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37
openflexure_microscope/microscope.py
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@ -288,6 +288,21 @@ class Microscope:
return system_metadata
def add_metadata_to_capture(output, metadata, annotations, tags):
logging.debug(f"Waiting for {output.file}")
# Wait for the file to be written to disk
output.file_ready.wait()
logging.info(f"Asynchronously injecting EXIF data into {output.file}")
# Inject system metadata
output.put_metadata({"instrument": self.metadata})
# Insert custom metadata
output.put_metadata(metadata)
# Insert custom metadata
output.put_annotations(annotations)
# Insert custom tags
output.put_tags(tags)
logging.info(f"Finished injecting EXIF data into {output.file}")
def capture(
self,
filename: str = None,
@ -324,26 +339,10 @@ class Microscope:
bayer=bayer,
fmt=fmt,
)
logging.info("Finished microscope capture...")
# Gether metadata from hardware in a greenlet
gevent.spawn(self.add_metadata_to_capture, output, metadata, annotations, tags)
def inject_metadata():
logging.debug(f"Waiting for {output.file}")
# Wait for the file to be written to disk
output.file_ready.wait()
logging.info(f"Asynchronously injecting EXIF data into {output.file}")
# Inject system metadata
output.put_metadata({"instrument": self.metadata})
# Insert custom metadata
output.put_metadata(metadata)
# Insert custom metadata
output.put_annotations(annotations)
# Insert custom tags
output.put_tags(tags)
logging.info(f"Finished injecting EXIF data into {output.file}")
gevent.spawn(inject_metadata)
logging.debug(f"Finished capture to {output.file}")
logging.info(f"Finished capture to {output.file}")
return output