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deleted files after a seekdir(); testcase produced by mbalmer@; fix
with and ok mbalmer; ok millert@
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callers may respond accordingly and correctly.
this fixes an issue where readdir_r() could not decipher the difference
between an error or no more entires.
feedback and ok kurt@, ok millert@
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remove the recursive lock in __seekdir() and ensure all callers properly
lock dd_lock prior to calling. reported and tested by bernd@
okay marc@ tedu@
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isolate its usage to libpthread only and replace with generic non-static
mutex support in the one place it is needed:
- remove _FD_LOCK/UNLOCK from lseek and ftruncate in libc and make the
functions weak so that libpthread can override with its own new
versions that do the locking.
- remove _thread_fd_lock/unlock() weak functions from libc and adjust
libpthread for the change.
- add generic _thread_mutex_lock/unlock/destroy() weak functions in libc
to support non-static mutexes in libc and add libpthread and librthread
implementations for them. libc can utilize non-static mutexes via the
new _MUTEX_LOCK/UNLOCK/DESTROY() macros. Actually these new macros can
support both static and non-static mutexes but currently only using
them for non-static.
- make opendir/closedir/readdir/readdir_r/seekdir/telldir() thread-safe
for both thread libraries by using a non-static mutex in the struct
_dirdesc (typedef DIR), utilizing it in the *dir functions and remove
remaining and incorrect _FD_LOCK/UNLOCK() use in libc.
- add comments to both thread libraries to indicate libc depends on the
current implementation of static mutex initialization. suggested by
marc@
- major bump libc and libpthread due to function removal, structure
change and weak symbol conversions.
okay marc@, tedu@
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while still returning the correct index for seekdir(); telldir()
Tested by Fred Crowson and others; "put it in" deraadt@
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- Fix semantics: seekdir(pos); telldir() shoud return pos. The code
that implements this will be made faster in a later commit.
- We loose documented behaviour (after closedir() the telldir()
positions are not valid anymore). This was never in Posix, and most
other systems have nothing like it.
Diff originally from Paul Thorn, rewritten by me using some FreeBSD
code. "slap it in" deraadt@
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Kill old files that are no longer compiled.
okay theo
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ok millert@
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rescinded 22 July 1999. Proofed by myself and Theo.
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Make sure everything uses {SYS,}LIBC_SCCS properly
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