mirror/musl - mirror of git://git.musl-libc.org/musl

	Commit message (Collapse)	Author	Age	Files	Lines
*	fdopen should set errno when it fails due to invalid mode string	Rich Felker	2012-06-17	1	-1/+4
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*	add proper fuxed-based locking for stdio	Rich Felker	2011-07-30	1	-3/+5
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	previously, stdio used spinlocks, which would be unacceptable if we ever add support for thread priorities, and which yielded pathologically bad performance if an application attempted to use flockfile on a key file as a major/primary locking mechanism. i had held off on making this change for fear that it would hurt performance in the non-threaded case, but actually support for recursive locking had already inflicted that cost. by having the internal locking functions store a flag indicating whether they need to perform unlocking, rather than using the actual recursive lock counter, i was able to combine the conditionals at unlock time, eliminating any additional cost, and also avoid a nasty corner case where a huge number of calls to ftrylockfile could cause deadlock later at the point of internal locking. this commit also fixes some issues with usage of pthread_self conflicting with __attribute__((const)) which resulted in crashes with some compiler versions/optimizations, mainly in flockfile prior to pthread_create.
*	debloat: use __syscall instead of syscall where possible	Rich Felker	2011-04-17	1	-2/+2
\| \| \| \| \| \|	don't waste time (and significant code size due to function call overhead!) setting errno when the result of a syscall does not matter or when it can't fail.
*	avoid setting errno when checking for tty	Rich Felker	2011-04-15	1	-1/+1
\| \| \| \| \| \| \|	setting errno here is completely valid, but some programs, notably busybox printf, assume that errno will not be set during output and treat this as an error condition. in any case, skipping it slightly reduces code size and saves time.
*	global cleanup to use the new syscall interface	Rich Felker	2011-03-20	1	-3/+3
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*	initial check-in, version 0.5.0 v0.5.0	Rich Felker	2011-02-12	1	-0/+52