| /* Basic platform-independent macro definitions for mutexes, |
| thread-specific data and parameters for malloc. |
| Copyright (C) 2003-2014 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/>. */ |
| |
| #ifndef _MALLOC_MACHINE_H |
| #define _MALLOC_MACHINE_H |
| |
| #include <atomic.h> |
| #include <lowlevellock.h> |
| |
| typedef struct spin_pdr_lock mutex_t; |
| |
| /* These macros expect to take a pointer to the object */ |
| #define mutex_init(m) spin_pdr_init(m) |
| #define mutex_lock(m) spin_pdr_lock(m) |
| #define mutex_trylock(m) ({ spin_pdr_trylock(m) ? 0 : EBUSY; }) |
| #define mutex_unlock(m) spin_pdr_unlock(m) |
| #define MUTEX_INITIALIZER SPINPDR_INITIALIZER |
| |
| /* thread specific data for glibc */ |
| |
| #include <bits/libc-tsd.h> |
| |
| typedef void* tsd_key_t; /* no key data structure, libc magic does it */ |
| __libc_tsd_define (static, void *, MALLOC) /* declaration/common definition */ |
| #define tsd_key_create(key, destr) ((void) (key)) |
| #define tsd_setspecific(key, data) __libc_tsd_set (void *, MALLOC, (data)) |
| #define tsd_getspecific(key, vptr) ((vptr) = __libc_tsd_get (void *, MALLOC)) |
| |
| /* TODO: look into pthread's version. We might need this, and it could be that |
| * glibc has the fork_cbs already. */ |
| #define thread_atfork(prepare, parent, child) do {} while(0) |
| |
| #include <sysdeps/generic/malloc-machine.h> |
| |
| #endif /* !defined(_MALLOC_MACHINE_H) */ |
