diff options
| -rw-r--r-- | ChangeLog | 25 | ||||
| -rw-r--r-- | conform/data/threads.h-data | 9 | ||||
| -rw-r--r-- | nptl/Makefile | 3 | ||||
| -rw-r--r-- | nptl/Versions | 2 | ||||
| -rw-r--r-- | nptl/threads.h | 28 | ||||
| -rw-r--r-- | nptl/tss_create.c | 31 | ||||
| -rw-r--r-- | nptl/tss_delete.c | 25 | ||||
| -rw-r--r-- | nptl/tss_get.c | 25 | ||||
| -rw-r--r-- | nptl/tss_set.c | 26 |
9 files changed, 172 insertions, 2 deletions
@@ -1,6 +1,31 @@ 2018-07-24 Adhemerval Zanella <adhemerval.zanella@linaro.org> [BZ #14092] + * conform/data/threads.h-data (thread_local): New macro. + (TSS_DTOR_ITERATIONS): Likewise. + (tss_t): New type. + (tss_dtor_t): Likewise. + (tss_create): New function. + (tss_get): Likewise. + (tss_set): Likewise. + (tss_delete): Likewise. + * nptl/Makefile (libpthread-routines): Add tss_create, tss_delete, + tss_get, and tss_set objects. + * nptl/Versions (libpthread) [GLIBC_2.28]: Likewise. + * nptl/tss_create.c: New file. + * nptl/tss_delete.c: Likewise. + * nptl/tss_get.c: Likewise. + * nptl/tss_set.c: Likewise. + * sysdeps/nptl/threads.h (thread_local): New define. + (TSS_DTOR_ITERATIONS): Likewise. + (tss_t): New typedef. + (tss_dtor_t): Likewise. + (tss_create): New prototype. + (tss_get): Likewise. + (tss_set): Likewise. + (tss_delete): Likewise. + + [BZ #14092] * conform/data/threads.h-data (cnd_t): New type. (cnd_init): New function. (cnd_signal): Likewise. diff --git a/conform/data/threads.h-data b/conform/data/threads.h-data index d7c562eb19..406e497726 100644 --- a/conform/data/threads.h-data +++ b/conform/data/threads.h-data @@ -1,6 +1,8 @@ #if defined ISO11 macro ONCE_FLAG_INIT +macro thread_local +macro-int-constant TSS_DTOR_ITERATIONS constant thrd_success constant thrd_busy @@ -17,6 +19,8 @@ type thrd_start_t type mtx_t type once_flag type cnd_t +type tss_t +type tss_dtor_t function int thrd_create (thrd_t*, thrd_start_t, void*) function int thrd_equal (thrd_t, thrd_t) @@ -43,6 +47,11 @@ function int cnd_wait (cnd_t*, mtx_t*) function int cnd_timedwait (cnd_t*, mtx_t*, const struct timespec*) function void cnd_destroy (cnd_t*) +function int tss_create (tss_t*, tss_dtor_t) +function {void*} tss_get (tss_t) +function int tss_set (tss_t, void*) +function void tss_delete (tss_t) + #include "time.h-data" #endif diff --git a/nptl/Makefile b/nptl/Makefile index 0864aee581..e331bf78d6 100644 --- a/nptl/Makefile +++ b/nptl/Makefile @@ -144,7 +144,8 @@ libpthread-routines = nptl-init nptlfreeres vars events version pt-interp \ thrd_create thrd_detach thrd_exit thrd_join \ mtx_destroy mtx_init mtx_lock mtx_timedlock \ mtx_trylock mtx_unlock call_once cnd_broadcast \ - cnd_destroy cnd_init cnd_signal cnd_timedwait cnd_wait + cnd_destroy cnd_init cnd_signal cnd_timedwait cnd_wait \ + tss_create tss_delete tss_get tss_set # pthread_setuid pthread_seteuid pthread_setreuid \ # pthread_setresuid \ # pthread_setgid pthread_setegid pthread_setregid \ diff --git a/nptl/Versions b/nptl/Versions index 9c38d67e72..e7f691da7a 100644 --- a/nptl/Versions +++ b/nptl/Versions @@ -274,7 +274,7 @@ libpthread { thrd_create; thrd_detach; thrd_exit; thrd_join; mtx_init; mtx_lock; mtx_timedlock; mtx_trylock; mtx_unlock; mtx_destroy; call_once; cnd_broadcast; cnd_destroy; cnd_init; cnd_signal; - cnd_timedwait; cnd_wait; + cnd_timedwait; cnd_wait; tss_create; tss_delete; tss_get; tss_set; } GLIBC_PRIVATE { diff --git a/nptl/threads.h b/nptl/threads.h index e46b1b7f32..9800f93aa7 100644 --- a/nptl/threads.h +++ b/nptl/threads.h @@ -27,6 +27,14 @@ __BEGIN_DECLS #include <bits/pthreadtypes-arch.h> #include <bits/types/struct_timespec.h> +#ifndef __cplusplus +# define thread_local _Thread_local +#endif + +#define TSS_DTOR_ITERATIONS 4 +typedef unsigned int tss_t; +typedef void (*tss_dtor_t) (void*); + typedef unsigned long int thrd_t; typedef int (*thrd_start_t) (void*); @@ -174,6 +182,26 @@ extern int cnd_timedwait (cnd_t *__restrict __cond, resources. */ extern void cnd_destroy (cnd_t *__COND); + +/* Thread specific storage functions. */ + +/* Create new thread-specific storage key and stores it in the object pointed + by __TSS_ID. If __DESTRUCTOR is not NULL, the function will be called when + the thread terminates. */ +extern int tss_create (tss_t *__tss_id, tss_dtor_t __destructor); + +/* Return the value held in thread-specific storage for the current thread + identified by __TSS_ID. */ +extern void *tss_get (tss_t __tss_id); + +/* Sets the value of the thread-specific storage identified by __TSS_ID for + the current thread to __VAL. */ +extern int tss_set (tss_t __tss_id, void *__val); + +/* Destroys the thread-specific storage identified by __TSS_ID. The + destructor is not called until thrd_exit is called. */ +extern void tss_delete (tss_t __tss_id); + __END_DECLS #endif /* _THREADS_H */ diff --git a/nptl/tss_create.c b/nptl/tss_create.c new file mode 100644 index 0000000000..c1b148c1f4 --- /dev/null +++ b/nptl/tss_create.c @@ -0,0 +1,31 @@ +/* C11 threads thread-specific creation implementation. + Copyright (C) 2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include "thrd_priv.h" + +int +tss_create (tss_t *tss_id, tss_dtor_t destructor) +{ + _Static_assert (sizeof (tss_t) == sizeof (pthread_key_t), + "sizeof (tss_t) != sizeof (pthread_key_t)"); + _Static_assert (TSS_DTOR_ITERATIONS == PTHREAD_DESTRUCTOR_ITERATIONS, + "TSS_DTOR_ITERATIONS != PTHREAD_DESTRUCTOR_ITERATIONS"); + + int err_code = __pthread_key_create (tss_id, destructor); + return thrd_err_map (err_code); +} diff --git a/nptl/tss_delete.c b/nptl/tss_delete.c new file mode 100644 index 0000000000..0fc2975242 --- /dev/null +++ b/nptl/tss_delete.c @@ -0,0 +1,25 @@ +/* C11 threads thread-specific delete implementation. + Copyright (C) 2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include "thrd_priv.h" + +void +tss_delete (tss_t tss_id) +{ + __pthread_key_delete (tss_id); +} diff --git a/nptl/tss_get.c b/nptl/tss_get.c new file mode 100644 index 0000000000..5e09766ec1 --- /dev/null +++ b/nptl/tss_get.c @@ -0,0 +1,25 @@ +/* C11 threads thread-specific get implementation. + Copyright (C) 2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include "thrd_priv.h" + +void * +tss_get (tss_t tss_id) +{ + return __pthread_getspecific (tss_id); +} diff --git a/nptl/tss_set.c b/nptl/tss_set.c new file mode 100644 index 0000000000..03973d92c9 --- /dev/null +++ b/nptl/tss_set.c @@ -0,0 +1,26 @@ +/* C11 threads thread-specific set implementation. + Copyright (C) 2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include "thrd_priv.h" + +int +tss_set (tss_t tss_id, void *val) +{ + int err_code = __pthread_setspecific (tss_id, val); + return thrd_err_map (err_code); +} |