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bionic/libc/include
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Yabin Cui 76615dae93 Provide writer preference option in rwlock. 
Previous implementation of rwlock contains four atomic variables, which
is hard to maintain and change. So I make following changes in this CL:

1. Add pending flags in rwlock.state, so we don't need to synchronize
between different atomic variables. Using compare_and_swap operations
on rwlock.state is enough for all state change.

2. Add pending_lock to protect readers/writers waiting and wake up
operations. As waiting/wakeup is not performance critical, using a
lock is easier to maintain.

3. Add writer preference option.

4. Add unit tests for rwlock.

Bug: 19109156

Change-Id: Idcaa58d695ea401d64445610b465ac5cff23ec7c
2015-04-08 13:11:13 -07:00
..
android
Add ANDROID_DLEXT_FORCE_LOAD flag
2015-04-03 10:50:48 -07:00
arpa
Simplify our endian.h implementation.
2014-12-08 20:35:08 -08:00
machine
Use machine/timespec.h to separate timespec definition.
2014-12-10 06:36:11 +00:00
net
Fix <net/route.h>.
2014-12-15 18:47:14 -08:00
netinet
Add in_port_t and move it and in_addr_t to the correct header file.
2014-08-19 12:43:50 -07:00
netpacket
auto import from //depot/cupcake/@135843
2009-03-03 19:28:35 -08:00
sys
Add the UMOUNT_NOFOLLOW flag to <sys/mount.h>.
2015-03-11 09:32:25 -07:00
alloca.h
auto import from //depot/cupcake/@135843
2009-03-03 19:28:35 -08:00
ar.h
New additions/bug fixes required/found when porting perf.
2012-03-20 12:54:55 -07:00
assert.h
Add "__noreturn" to assert and assert2
2014-01-15 07:32:52 +00:00
byteswap.h
Fixes for the ARM-specific bswap_16, bswap_32, and bswap_64.
2010-09-26 11:26:53 -07:00
ctype.h
Put back inline definitions if using an old API.
2015-01-29 17:30:40 -08:00
dirent.h
Merge "implement missing seekdir and telldir"
2014-11-12 20:36:26 +00:00
dlfcn.h
Add RTLD_NODELETE flag support
2014-10-01 11:09:37 -07:00
elf.h
Add some GNU specific elf constants.
2015-03-13 10:32:45 -07:00
endian.h
auto import from //depot/cupcake/@135843
2009-03-03 19:28:35 -08:00
err.h
The err family allow null format strings.
2014-07-11 02:53:27 +00:00
errno.h
Put back inline definitions if using an old API.
2015-01-29 17:30:40 -08:00
error.h
Add <error.h>.
2015-01-26 11:57:11 -08:00
fcntl.h
Implement _FILE_OFFSET_BITS (mostly).
2015-02-17 19:54:43 -08:00
features.h
Move the meat of <features.h> into <sys/cdefs.h>.
2014-08-19 11:18:20 -07:00
fnmatch.h
auto import from //depot/cupcake/@135843
2009-03-03 19:28:35 -08:00
fts.h
libc: Fix headers to allow direct inclusion.
2014-12-01 15:44:24 +01:00
ftw.h
Added ftw64, nftw64
2014-02-24 20:22:11 +00:00
getopt.h
Switch to current upstream getopt_long.
2013-06-25 14:56:17 -07:00
grp.h
Make getgrent deprecated.
2015-02-25 19:05:37 -08:00
inttypes.h
Switch to the OpenBSD implementations of the wide scanf functions.
2014-04-29 16:28:56 -07:00
lastlog.h
auto import from //depot/cupcake/@135843
2009-03-03 19:28:35 -08:00
libgen.h
Don't expose non-standard basename_r and dirname_r in LP64.
2014-09-08 16:44:48 -07:00
limits.h
limits.h: add define for HOST_NAME_MAX
2014-10-30 10:59:24 +08:00
link.h
Fix <link.h>.
2014-02-10 13:31:13 -08:00
locale.h
Brings LC_* defs into line with POSIX
2014-04-18 21:48:57 +00:00
malloc.h
Implement malloc_info(3).
2014-08-22 10:23:12 -07:00
memory.h
Fix <memory.h> to be a synonym for <string.h> like in glibc.
2013-02-22 11:11:48 -08:00
mntent.h
Add getmntent_r to our collection of <mntent.h> compatibility stubs.
2014-05-13 10:44:07 -07:00
netdb.h
Define MAXHOSTNAMELEN explicitly in source files.
2015-02-09 19:56:47 -08:00
nsswitch.h
Restore <nsswitch.h> which is BSD API, not private.
2014-06-30 14:15:34 -07:00
paths.h
Fix _PATH_DEFPATH to correspond to the actual default path.
2015-03-17 17:34:14 -07:00
poll.h
Fortify poll and ppoll.
2015-02-02 09:15:19 -08:00
pthread.h
Provide writer preference option in rwlock.
2015-04-08 13:11:13 -07:00
pty.h
Implement <pty.h>.
2014-12-03 15:55:34 -08:00
pwd.h
Move endpwent to ndk_cruft.cpp.
2015-02-25 14:58:08 -08:00
regex.h
Import regex from OpenBSD
2010-01-15 15:01:44 -08:00
resolv.h
Use default hidden visibility to build libc_dns.
2014-06-12 13:35:41 -07:00
sched.h
Use machine/timespec.h to separate timespec definition.
2014-12-10 06:36:11 +00:00
search.h
Implement twalk(3), add unit tests.
2014-07-24 14:55:29 -07:00
semaphore.h
Switch sem_t from bionic atomics to stdatomic.h.
2015-02-03 16:35:57 -08:00
setjmp.h
Rewrite and hide longjmperror.
2014-06-06 16:49:39 -07:00
sgtty.h
auto import from //depot/cupcake/@135843
2009-03-03 19:28:35 -08:00
signal.h
Put back inline definitions if using an old API.
2015-01-29 17:30:40 -08:00
stdatomic.h
Allow stdatomic.h to be included from mingw prebuilt.
2014-11-12 18:08:25 -08:00
stdint.h
There is no _MIN for unsigned types.
2014-07-21 17:16:30 -07:00
stdio_ext.h
Add <stdio_ext.h> for elfutils.
2014-08-20 10:23:52 -07:00
stdio.h
Merge "Make tempnam/mktemp deprecated."
2015-02-26 02:17:17 +00:00
stdlib.h
Make tempnam/mktemp deprecated.
2015-02-25 15:42:01 -08:00
string.h
Add GNU extensions mempcpy and wmemcpy.
2015-02-18 22:02:56 -08:00
strings.h
Implement all the POSIX _l functions.
2014-11-06 15:52:22 -08:00
syslog.h
syslog.h: missing LOG_MAKEPRI definition
2015-03-12 13:21:35 -07:00
termio.h
libc: Add missing <termio.h> header
2010-06-11 14:39:39 -07:00
termios.h
Put back inline definitions if using an old API.
2015-01-29 17:30:40 -08:00
time64.h
Remove the non-standard time64 stuff for LP64.
2014-05-05 17:14:02 -07:00
time.h
support _POSIX_CPUTIME
2014-11-26 17:14:50 -08:00
uchar.h
Adds functionality specified by uchar.h
2014-06-04 08:39:24 -07:00
ucontext.h
Add x86_64 ucontext.h for better compatibility
2014-01-29 15:35:33 -08:00
unistd.h
Merge "Move getusershell/endusershell/setusershell to ndk_cruft.cpp."
2015-02-25 00:00:51 +00:00
util.h
auto import from //depot/cupcake/@135843
2009-03-03 19:28:35 -08:00
utime.h
Fix utime/utimes when passed a NULL pointer.
2013-10-28 13:21:06 -07:00
utmp.h
Implement <pty.h>.
2014-12-03 15:55:34 -08:00
wchar.h
Add GNU extensions mempcpy and wmemcpy.
2015-02-18 22:02:56 -08:00
wctype.h
Revert "Revert "Add locale aware APIs.""
2014-07-11 16:21:31 +00:00
xlocale.h
Flesh out <locale.h>.
2014-04-08 19:37:38 -07:00