[v8.x] fs: fix createReadStream(…, {end: n}) for non-seekable fds
#19410
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
82bdf8f fixed an issue by silently modifying the `start` option for the case when only `end` is passed, in order to perform reads from a specified range in the file. However, that approach does not work for non-seekable files, since a numeric `start` option means that positioned reads will be used to read data from the file. This patch fixes that, and instead ends reading after a specified size by adjusting the read buffer size. This way we avoid re-introducing the bug that 82bdf8f fixed, and align behaviour with the native file stream mechanism introduced in nodejs#18936 as well. PR-URL: nodejs#19329 Fixes: nodejs#19240 Refs: nodejs#18121 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Chen Gang <[email protected]>
nodejs-github-bot
added
fs
MylesBorins
pushed a commit
that referenced
this pull request
Mar 20, 2018
82bdf8f fixed an issue by silently modifying the `start` option for the case when only `end` is passed, in order to perform reads from a specified range in the file. However, that approach does not work for non-seekable files, since a numeric `start` option means that positioned reads will be used to read data from the file. This patch fixes that, and instead ends reading after a specified size by adjusting the read buffer size. This way we avoid re-introducing the bug that 82bdf8f fixed, and align behaviour with the native file stream mechanism introduced in #18936 as well. Backport-PR-URL: #19410 PR-URL: #19329 Fixes: #19240 Refs: #18121 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Chen Gang <[email protected]>
|
landed in 5586089 |
MylesBorins
pushed a commit
that referenced
this pull request
Mar 28, 2018
82bdf8f fixed an issue by silently modifying the `start` option for the case when only `end` is passed, in order to perform reads from a specified range in the file. However, that approach does not work for non-seekable files, since a numeric `start` option means that positioned reads will be used to read data from the file. This patch fixes that, and instead ends reading after a specified size by adjusting the read buffer size. This way we avoid re-introducing the bug that 82bdf8f fixed, and align behaviour with the native file stream mechanism introduced in #18936 as well. Backport-PR-URL: #19410 PR-URL: #19329 Fixes: #19240 Refs: #18121 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Chen Gang <[email protected]>
MylesBorins
pushed a commit
that referenced
this pull request
Mar 30, 2018
82bdf8f fixed an issue by silently modifying the `start` option for the case when only `end` is passed, in order to perform reads from a specified range in the file. However, that approach does not work for non-seekable files, since a numeric `start` option means that positioned reads will be used to read data from the file. This patch fixes that, and instead ends reading after a specified size by adjusting the read buffer size. This way we avoid re-introducing the bug that 82bdf8f fixed, and align behaviour with the native file stream mechanism introduced in #18936 as well. Backport-PR-URL: #19410 PR-URL: #19329 Fixes: #19240 Refs: #18121 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Chen Gang <[email protected]>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Backport #19329 to v8.x
The test file needed to be updated.
Fixes: #19240