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Cygwin: Add C11 threads API 

Code taken from FreeBSD, which implements C11 threads as
wrapper around pthreads.  Fix up machine/_threads.h which
is called from newlib's machine-independent threads.h to
match Cygwin's pthreads types.

Add the FreeBSD source files to libc subdir and take
opportunity to define LIBC_OFILES var in Makefile.

Add new symbols to common.din and sort symbols.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2020-08-29 21:29:24 +02:00
parent 5999c433bb
commit 75a669790e
8 changed files with 627 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
winsup/cygwin/Makefile.in
View File

@ -151,6 +151,32 @@ DLL_IMPORTS:=${shell $(CC) -print-file-name=w32api/libkernel32.a} ${shell $(CC)
MT_SAFE_OBJECTS:=
#
LIBC_OFILES:= \
arc4random_stir.o \
base64.o \
bsdlib.o \
call_once.o \
cnd.o \
fnmatch.o \
fts.o \
ftw.o \
getentropy.o \
getopt.o \
inet_addr.o \
inet_network.o \
minires-os-if.o \
minires.o \
msgcat.o \
mtx.o \
nftw.o \
rcmd.o \
rexec.o \
strfmon.o \
strptime.o \
thrd.o \
tss.o \
xsique.o
MATH_OFILES:= \
acoshl.o \
acosl.o \
@ -251,11 +277,8 @@ TZCODE_OFILES:=localtime.o
DLL_OFILES:= \
advapi32.o \
aio.o \
arc4random_stir.o \
assert.o \
autoload.o \
base64.o \
bsdlib.o \
clock.o \
ctype.o \
cxx.o \
@ -313,21 +336,14 @@ DLL_OFILES:= \
fhandler_windows.o \
fhandler_zero.o \
flock.o \
fnmatch.o \
fork.o \
forkable.o \
fts.o \
ftw.o \
getentropy.o \
getopt.o \
glob.o \
glob_pattern_p.o \
globals.o \
grp.o \
heap.o \
hookapi.o \
inet_addr.o \
inet_network.o \
init.o \
ioctl.o \
ipc.o \
@ -337,19 +353,15 @@ DLL_OFILES:= \
loadavg.o \
lsearch.o \
malloc_wrapper.o \
minires-os-if.o \
minires.o \
miscfuncs.o \
mktemp.o \
mmap.o \
mmap_alloc.o \
msg.o \
msgcat.o \
mount.o \
net.o \
netdb.o \
nfs.o \
nftw.o \
nlsfuncs.o \
ntea.o \
passwd.o \
@ -368,8 +380,6 @@ DLL_OFILES:= \
regfree.o \
registry.o \
resource.o \
rexec.o \
rcmd.o \
scandir.o \
sched.o \
sec_acl.o \
@ -388,9 +398,7 @@ DLL_OFILES:= \
smallprint.o \
spawn.o \
strace.o \
strfmon.o \
strfuncs.o \
strptime.o \
strsep.o \
strsig.o \
sync.o \
@ -409,9 +417,9 @@ DLL_OFILES:= \
wincap.o \
window.o \
winf.o \
xsique.o \
$(EXTRA_OFILES) \
$(MALLOC_OFILES) \
$(LIBC_OFILES) \
$(MATH_OFILES) \
$(TZCODE_OFILES) \
$(MT_SAFE_OBJECTS)

61
winsup/cygwin/common.din
View File

@ -38,7 +38,6 @@ sys_sigabbrev DATA
sys_siglist DATA
# Exported functions
_Exit SIGFE
__assert NOSIGFE
__assert_func NOSIGFE
__assertfail NOSIGFE
@ -126,6 +125,7 @@ __xdrrec_getrec SIGFE
__xdrrec_setnonblock SIGFE
__xpg_sigpause SIGFE
__xpg_strerror_r SIGFE
_Exit SIGFE
_exit SIGFE
_feinitialise NOSIGFE
_fscanf_r SIGFE
@ -233,6 +233,7 @@ asinhl NOSIGFE
asinl NOSIGFE
asnprintf SIGFE
asprintf SIGFE
at_quick_exit SIGFE
atan NOSIGFE
atan2 NOSIGFE
atan2f NOSIGFE
@ -248,7 +249,6 @@ atoff SIGFE
atoi NOSIGFE
atol NOSIGFE
atoll NOSIGFE
at_quick_exit SIGFE
basename NOSIGFE
bcmp NOSIGFE
bcopy NOSIGFE
@ -267,6 +267,7 @@ cacosh NOSIGFE
cacoshf NOSIGFE
cacoshl NOSIGFE
cacosl NOSIGFE
call_once SIGFE
calloc SIGFE
canonicalize_file_name SIGFE
carg NOSIGFE
@ -335,6 +336,12 @@ clogl NOSIGFE
close SIGFE
closedir SIGFE
closelog SIGFE
cnd_broadcast SIGFE
cnd_destroy SIGFE
cnd_init SIGFE
cnd_signal SIGFE
cnd_timedwait SIGFE
cnd_wait SIGFE
confstr NOSIGFE
conj NOSIGFE
conjf NOSIGFE
@ -635,8 +642,6 @@ gammaf NOSIGFE
gammaf_r NOSIGFE
gcvt SIGFE
gcvtf SIGFE
GetCommandLineA@0 = cygwin_GetCommandLineA@0 NOSIGFE
GetCommandLineW@0 = cygwin_GetCommandLineW@0 NOSIGFE
get_avphys_pages SIGFE
get_current_dir_name SIGFE
get_nprocs SIGFE
@ -647,6 +652,8 @@ getc SIGFE
getc_unlocked SIGFE
getchar SIGFE
getchar_unlocked SIGFE
GetCommandLineA@0 = cygwin_GetCommandLineA@0 NOSIGFE
GetCommandLineW@0 = cygwin_GetCommandLineW@0 NOSIGFE
getcontext NOSIGFE
getcwd SIGFE
getdelim = __getdelim SIGFE
@ -891,9 +898,9 @@ logb NOSIGFE
logbf NOSIGFE
logbl NOSIGFE
logf NOSIGFE
logl NOSIGFE
login SIGFE
login_tty SIGFE
logl NOSIGFE
logout SIGFE
logwtmp SIGFE
longjmp NOSIGFE
@ -972,6 +979,12 @@ msgget SIGFE
msgrcv SIGFE
msgsnd SIGFE
msync SIGFE
mtx_destroy SIGFE
mtx_init SIGFE
mtx_lock SIGFE
mtx_timedlock SIGFE
mtx_trylock SIGFE
mtx_unlock SIGFE
munlock SIGFE
munmap SIGFE
nan NOSIGFE
@ -1017,14 +1030,19 @@ posix_madvise SIGFE
posix_memalign SIGFE
posix_openpt SIGFE
posix_spawn SIGFE
posix_spawn_file_actions_addclose SIGFE
posix_spawn_file_actions_adddup2 SIGFE
posix_spawn_file_actions_addopen SIGFE
posix_spawn_file_actions_destroy SIGFE
posix_spawn_file_actions_init SIGFE
posix_spawnattr_destroy SIGFE
posix_spawnattr_init SIGFE
posix_spawnattr_getflags NOSIGFE
posix_spawnattr_getpgroup NOSIGFE
posix_spawnattr_getschedparam NOSIGFE
posix_spawnattr_getschedpolicy NOSIGFE
posix_spawnattr_getsigdefault NOSIGFE
posix_spawnattr_getsigmask NOSIGFE
posix_spawnattr_init SIGFE
posix_spawnattr_setflags NOSIGFE
posix_spawnattr_setpgroup NOSIGFE
posix_spawnattr_setschedparam NOSIGFE
@ -1032,11 +1050,6 @@ posix_spawnattr_setschedpolicy NOSIGFE
posix_spawnattr_setsigdefault NOSIGFE
posix_spawnattr_setsigmask NOSIGFE
posix_spawnp SIGFE
posix_spawn_file_actions_destroy SIGFE
posix_spawn_file_actions_init SIGFE
posix_spawn_file_actions_addclose SIGFE
posix_spawn_file_actions_adddup2 SIGFE
posix_spawn_file_actions_addopen SIGFE
pow NOSIGFE
pow10 NOSIGFE
pow10f NOSIGFE
@ -1070,13 +1083,13 @@ pthread_attr_setscope SIGFE
pthread_attr_setstack SIGFE
pthread_attr_setstackaddr SIGFE
pthread_attr_setstacksize SIGFE
pthread_barrier_destroy SIGFE
pthread_barrier_init SIGFE
pthread_barrier_wait SIGFE
pthread_barrierattr_destroy SIGFE
pthread_barrierattr_getpshared SIGFE
pthread_barrierattr_init SIGFE
pthread_barrierattr_setpshared SIGFE
pthread_barrierattr_getpshared SIGFE
pthread_barrierattr_destroy SIGFE
pthread_barrier_init SIGFE
pthread_barrier_destroy SIGFE
pthread_barrier_wait SIGFE
pthread_cancel SIGFE
pthread_cond_broadcast SIGFE
pthread_cond_destroy SIGFE
@ -1176,9 +1189,9 @@ putwc_unlocked SIGFE
putwchar SIGFE
putwchar_unlocked SIGFE
pwrite SIGFE
quick_exit SIGFE
qsort NOSIGFE
qsort_r NOSIGFE
quick_exit SIGFE
quotactl SIGFE
raise SIGFE
rand NOSIGFE
@ -1293,7 +1306,6 @@ sendto = cygwin_sendto SIGFE
setbuf SIGFE
setbuffer SIGFE
setcontext NOSIGFE
sethostname SIGFE
setdtablesize SIGFE
setegid SIGFE
setenv SIGFE
@ -1302,6 +1314,7 @@ setgid SIGFE
setgrent NOSIGFE
setgroups SIGFE
sethostent NOSIGFE
sethostname SIGFE
setitimer SIGFE
setjmp NOSIGFE
setlinebuf SIGFE
@ -1495,6 +1508,14 @@ tfind NOSIGFE
tgamma NOSIGFE
tgammaf NOSIGFE
tgammal NOSIGFE
thrd_create SIGFE
thrd_current SIGFE
thrd_detach SIGFE
thrd_equal SIGFE
thrd_exit SIGFE
thrd_join SIGFE
thrd_sleep SIGFE
thrd_yield SIGFE
time SIGFE
timegm NOSIGFE
timelocal SIGFE
@ -1529,6 +1550,10 @@ truncate SIGFE
truncf NOSIGFE
truncl NOSIGFE
tsearch SIGFE
tss_create SIGFE
tss_delete SIGFE
tss_get SIGFE
tss_set SIGFE
ttyname SIGFE
ttyname_r SIGFE
ttyslot NOSIGFE

63
winsup/cygwin/include/machine/_threads.h Normal file
View File

@ -0,0 +1,63 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE__THREADS_H_
#define _MACHINE__THREADS_H_
#include <sys/types.h>
#include <sys/lock.h>
/*
* The C11 threads interface.
*
* This interface is implemented as a light-weight wrapper around
* <pthread.h>. To prevent namespace pollution, the once_flag object,
* its corresponding ONCE_FLAG_INIT and TSS_DTOR_ITERATIONS have been
* copied from this header file. They must be kept in sync.
*/
typedef pthread_cond_t cnd_t;
typedef pthread_mutex_t mtx_t;
typedef pthread_t thrd_t;
typedef pthread_key_t tss_t;
/* pthread_once_t */
typedef struct {
mtx_t mutex;
int state;
} once_flag;
/* PTHREAD_ONCE_INIT */
#define ONCE_FLAG_INIT { ((pthread_mutex_t)19), 0 }
/* PTHREAD_DESTRUCTOR_ITERATIONS */
#define TSS_DTOR_ITERATIONS 4
#endif /* _MACHINE__THREADS_H_ */

46
winsup/cygwin/libc/call_once.c Normal file
View File

@ -0,0 +1,46 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <pthread.h>
#include "threads.h"
void
call_once(once_flag *flag, void (*func)(void))
{
(void)pthread_once((pthread_once_t *)flag, func);
}
_Static_assert(sizeof(once_flag) == sizeof(pthread_once_t),
"once_flag must be of the same size as pthread_once_t");

100
winsup/cygwin/libc/cnd.c Normal file
View File

@ -0,0 +1,100 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <errno.h>
#include <pthread.h>
#include "threads.h"
int
cnd_broadcast(cnd_t *cond)
{
if (pthread_cond_broadcast(cond) != 0)
return (thrd_error);
return (thrd_success);
}
void
cnd_destroy(cnd_t *cond)
{
(void)pthread_cond_destroy(cond);
}
int
cnd_init(cnd_t *cond)
{
switch (pthread_cond_init(cond, NULL)) {
case 0:
return (thrd_success);
case ENOMEM:
return (thrd_nomem);
default:
return (thrd_error);
}
}
int
cnd_signal(cnd_t *cond)
{
if (pthread_cond_signal(cond) != 0)
return (thrd_error);
return (thrd_success);
}
int
cnd_timedwait(cnd_t *restrict cond, mtx_t *restrict mtx,
const struct timespec *restrict ts)
{
switch (pthread_cond_timedwait(cond, mtx, ts)) {
case 0:
return (thrd_success);
case ETIMEDOUT:
return (thrd_timedout);
default:
return (thrd_error);
}
}
int
cnd_wait(cnd_t *cond, mtx_t *mtx)
{
if (pthread_cond_wait(cond, mtx) != 0)
return (thrd_error);
return (thrd_success);
}

125
winsup/cygwin/libc/mtx.c Normal file
View File

@ -0,0 +1,125 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <errno.h>
#include <pthread.h>
#include "threads.h"
void
mtx_destroy(mtx_t *mtx)
{
(void)pthread_mutex_destroy(mtx);
}
int
mtx_init(mtx_t *mtx, int type)
{
pthread_mutexattr_t attr;
int mt;
switch (type) {
case mtx_plain:
case mtx_timed:
mt = PTHREAD_MUTEX_NORMAL;
break;
#ifdef __CYGWIN__
/* This is a hack to support apps running under GLibc. mtx_plain is
defined as 0 in GLibc, so apps calling mtx_init with just the
mtx_recursive flag don't fail, as they should. Rather they run
as if mtx_plain | mtx_recursive has been given as type. */
case mtx_recursive:
#endif
case mtx_plain | mtx_recursive:
case mtx_timed | mtx_recursive:
mt = PTHREAD_MUTEX_RECURSIVE;
break;
default:
return (thrd_error);
}
if (pthread_mutexattr_init(&attr) != 0)
return (thrd_error);
if (pthread_mutexattr_settype(&attr, mt) != 0)
return (thrd_error);
if (pthread_mutex_init(mtx, &attr) != 0)
return (thrd_error);
return (thrd_success);
}
int
mtx_lock(mtx_t *mtx)
{
if (pthread_mutex_lock(mtx) != 0)
return (thrd_error);
return (thrd_success);
}
int
mtx_timedlock(mtx_t *restrict mtx, const struct timespec *restrict ts)
{
switch (pthread_mutex_timedlock(mtx, ts)) {
case 0:
return (thrd_success);
case ETIMEDOUT:
return (thrd_timedout);
default:
return (thrd_error);
}
}
int
mtx_trylock(mtx_t *mtx)
{
switch (pthread_mutex_trylock(mtx)) {
case 0:
return (thrd_success);
case EBUSY:
return (thrd_busy);
default:
return (thrd_error);
}
}
int
mtx_unlock(mtx_t *mtx)
{
if (pthread_mutex_unlock(mtx) != 0)
return (thrd_error);
return (thrd_success);
}

150
winsup/cygwin/libc/thrd.c Normal file
View File

@ -0,0 +1,150 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifdef __CYGWIN__
#include <errno.h>
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <pthread.h>
#include <stdint.h>
#include <stdlib.h>
#include "threads.h"
struct thrd_param {
thrd_start_t func;
void *arg;
};
static void *
thrd_entry(void *arg)
{
struct thrd_param tp;
tp = *(struct thrd_param *)arg;
free(arg);
return ((void *)(intptr_t)tp.func(tp.arg));
}
int
thrd_create(thrd_t *thr, thrd_start_t func, void *arg)
{
struct thrd_param *tp;
/*
* Work around return type inconsistency. Wrap execution using
* a function conforming to pthread_create()'s start_routine.
*/
tp = malloc(sizeof(*tp));
if (tp == NULL)
return (thrd_nomem);
tp->func = func;
tp->arg = arg;
if (pthread_create(thr, NULL, thrd_entry, tp) != 0) {
free(tp);
return (thrd_error);
}
return (thrd_success);
}
thrd_t
thrd_current(void)
{
return (pthread_self());
}
int
thrd_detach(thrd_t thr)
{
if (pthread_detach(thr) != 0)
return (thrd_error);
return (thrd_success);
}
int
thrd_equal(thrd_t thr0, thrd_t thr1)
{
return (pthread_equal(thr0, thr1));
}
_Noreturn void
thrd_exit(int res)
{
pthread_exit((void *)(intptr_t)res);
}
int
thrd_join(thrd_t thr, int *res)
{
void *value_ptr;
if (pthread_join(thr, &value_ptr) != 0)
return (thrd_error);
if (res != NULL)
*res = (intptr_t)value_ptr;
return (thrd_success);
}
int
thrd_sleep(const struct timespec *duration, struct timespec *remaining)
{
#ifdef __CYGWIN__
/* Return value per POSIX:
0 on successful sleep,
-1 if a signal occurred,
other negative value if an error occurred. */
int ret = clock_nanosleep(CLOCK_REALTIME, 0, duration, remaining);
switch (ret) {
case 0:
return 0;
case EINTR:
return -1;
default:
return -ret; /* EPERM isn't generated by clock_nanosleep
so this is safe. */
}
#else
int ret = nanosleep(duration, remaining);
#endif
}
void
thrd_yield(void)
{
pthread_yield();
}

73
winsup/cygwin/libc/tss.c Normal file
View File

@ -0,0 +1,73 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifdef __CYGWIN__
#include <limits.h>
#endif
#include <pthread.h>
#include "threads.h"
int
tss_create(tss_t *key, tss_dtor_t dtor)
{
if (pthread_key_create(key, dtor) != 0)
return (thrd_error);
return (thrd_success);
}
void
tss_delete(tss_t key)
{
(void)pthread_key_delete(key);
}
void *
tss_get(tss_t key)
{
return (pthread_getspecific(key));
}
int
tss_set(tss_t key, void *val)
{
if (pthread_setspecific(key, val) != 0)
return (thrd_error);
return (thrd_success);
}
_Static_assert(TSS_DTOR_ITERATIONS == PTHREAD_DESTRUCTOR_ITERATIONS,
"TSS_DTOR_ITERATIONS must be identical to PTHREAD_DESTRUCTOR_ITERATIONS");