(release/v1.6) Fix build on Plan 9 (#1451) #1508
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Plan 9 doesn't have mmap, so we just return an error. File locking is implemented using the exclusive mode bit. From http://man.cat-v.org/plan_9/5/open: If the file is marked for exclusive use (see stat(5)), only one client can have the file open at any time. That is, after such a file has been opened, further opens will fail until fid has been clunked. Initial attempt at implementing directory locking using this method was not successful because badger seems to be opening the directory multiple times (at least while running the test suite). As a workaround, we lock the pid lock file instead of the directory itself, same as the windows implementation. Co-authored-by: Ibrahim Jarif <[email protected]> (cherry picked from commit 07fa3eb)
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Plan 9 doesn't have mmap, so we just return an error. File locking is implemented using the exclusive mode bit. From http://man.cat-v.org/plan_9/5/open: If the file is marked for exclusive use (see stat(5)), only one client can have the file open at any time. That is, after such a file has been opened, further opens will fail until fid has been clunked. Initial attempt at implementing directory locking using this method was not successful because badger seems to be opening the directory multiple times (at least while running the test suite). As a workaround, we lock the pid lock file instead of the directory itself, same as the windows implementation. Co-authored-by: Ibrahim Jarif <[email protected]> (cherry picked from commit 07fa3eb) Co-authored-by: Fazlul Shahriar <[email protected]>
danielmai
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Aug 24, 2021
Plan 9 doesn't have mmap, so we just return an error. File locking is implemented using the exclusive mode bit. From http://man.cat-v.org/plan_9/5/open: If the file is marked for exclusive use (see stat(5)), only one client can have the file open at any time. That is, after such a file has been opened, further opens will fail until fid has been clunked. Initial attempt at implementing directory locking using this method was not successful because badger seems to be opening the directory multiple times (at least while running the test suite). As a workaround, we lock the pid lock file instead of the directory itself, same as the windows implementation. Co-authored-by: Ibrahim Jarif <[email protected]> (cherry picked from commit 07fa3eb) Co-authored-by: Fazlul Shahriar <[email protected]> Co-authored-by: Fazlul Shahriar <[email protected]>
mYmNeo
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Jan 16, 2023
Plan 9 doesn't have mmap, so we just return an error. File locking is implemented using the exclusive mode bit. From http://man.cat-v.org/plan_9/5/open: If the file is marked for exclusive use (see stat(5)), only one client can have the file open at any time. That is, after such a file has been opened, further opens will fail until fid has been clunked. Initial attempt at implementing directory locking using this method was not successful because badger seems to be opening the directory multiple times (at least while running the test suite). As a workaround, we lock the pid lock file instead of the directory itself, same as the windows implementation. Co-authored-by: Ibrahim Jarif <[email protected]> (cherry picked from commit 07fa3eb) Co-authored-by: Fazlul Shahriar <[email protected]>
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Plan 9 doesn't have mmap, so we just return an error.
File locking is implemented using the exclusive mode bit.
From http://man.cat-v.org/plan_9/5/open:
If the file is marked for exclusive use (see stat(5)), only
one client can have the file open at any time. That is,
after such a file has been opened, further opens will fail
until fid has been clunked.
Initial attempt at implementing directory locking using this method was
not successful because badger seems to be opening the directory multiple
times (at least while running the test suite). As a workaround, we lock
the pid lock file instead of the directory itself, same as the windows
implementation.
Co-authored-by: Ibrahim Jarif [email protected]
(cherry picked from commit 07fa3eb)
This change is