musl - musl - an implementation of the standard library for Linux-based systems

Age	Commit message (Collapse)	Author	Lines
2015-03-02	make aio_suspend a cancellation point and properly handle cancellation	Rich Felker	-3/+9

2015-03-02	factor cancellation cleanup push/pop out of futex __timedwait function	Rich Felker	-1/+1
	previously, the __timedwait function was optionally a cancellation point depending on whether it was passed a pointer to a cleaup function and context to register. as of now, only one caller actually used such a cleanup function (and it may face removal soon); most callers either passed a null pointer to disable cancellation or a dummy cleanup function. now, __timedwait is never a cancellation point, and __timedwait_cp is the cancellable version. this makes the intent of the calling code more obvious and avoids ugly dummy functions and long argument lists.
2015-02-13	overhaul aio implementation for correctness	Rich Felker	-33/+46
	previously, aio operations were not tracked by file descriptor; each operation was completely independent. this resulted in non-conforming behavior for non-seekable/append-mode writes (which are required to be ordered) and made it impossible to implement aio_cancel, which in turn made closing file descriptors with outstanding aio operations unsafe. the new implementation is significantly heavier (roughly twice the size, and seems to be slightly slower) and presently aims mainly at correctness, not performance. most of the public interfaces have been moved into a single file, aio.c, because there is little benefit to be had from splitting them. whenever any aio functions are used, aio_cancel and the internal queue lifetime management and fd-to-queue mapping code must be linked, and these functions make up the bulk of the code size. the close function's interaction with aio is implemented with weak alias magic, to avoid pulling in heavy aio cancellation code in programs that don't use aio, and the expensive cancellation path (which includes signal blocking) is optimized out when there are no active aio queues.
2014-09-05	add missing legacy LFS *64 symbol aliases	Szabolcs Nagy	-0/+3
	versionsort64, aio64 and lio64 symbols were missing, they are only needed for glibc ABI compatibility, on the source level dirent.h and aio.h already redirect them.
2011-09-13	fix various errors in function signatures/prototypes found by nsz	Rich Felker	-1/+1

2011-09-09	implement POSIX asynchronous io	Rich Felker	-0/+57
	some features are not yet supported, and only minimal testing has been performed. should be considered experimental at this point.