blockstore: allow to pass a file to write in #323
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This allow the caller to control the file lifecycle and implement a cleaning strategy. An example would be: - open a file in a temporary folder - if the write suceed, close the file and move it to its final destination - on error, remove the file If the underlying filesystem support it, an anonymous file can be used instead: open then immediately delete, use the file descriptor to write. A crash before the end of the write process would release the used storage automatically.
Jorropo
approved these changes
Jul 28, 2022
rvagg
reviewed
Aug 1, 2022
|
aaaaactually, I probably should have asked for tests - @MichaelMure would you mind taking a look at the current test suite and see if you can extend one of them to control the file from outside rather than passing the path? |
rvagg
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Aug 12, 2022
This allow the caller to control the file lifecycle and implement a cleaning strategy. An example would be: - open a file in a temporary folder - if the write suceed, close the file and move it to its final destination - on error, remove the file If the underlying filesystem support it, an anonymous file can be used instead: open then immediately delete, use the file descriptor to write. A crash before the end of the write process would release the used storage automatically. Co-authored-by: Rod Vagg <rod@vagg.org>
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This allow the caller to control the file lifecycle and implement a cleaning strategy. An example would be:
If the underlying filesystem support it, an anonymous file can be used instead: open then immediately delete, use the file descriptor to write. A crash before the end of the write process would release the used storage automatically.
Not a breaking change, only introduce an extra function.