--- /dev/null
+/*
+ * Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991
+ * All Rights Reserved
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose and without fee is hereby granted,
+ * provided that the above copyright notice appears in all copies and
+ * that both the copyright notice and this permission notice appear in
+ * supporting documentation.
+ *
+ * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE.
+ *
+ * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
+ * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+/*
+ * MkLinux
+ */
+
+/*
+ * POSIX Threads - IEEE 1003.1c
+ */
+
+#ifndef _POSIX_PTHREAD_INTERNALS_H
+#define _POSIX_PTHREAD_INTERNALS_H
+
+
+#include <assert.h>
+#include <mach/port.h>
+#include <mach/mach_error.h>
+#include <mach/message.h>
+#include <mach/machine/vm_types.h>
+#include <mach/std_types.h>
+#include <mach/policy.h>
+#include <mach/sync.h>
+#include <mach/sync_policy.h>
+#include <mach/mach_traps.h>
+#include <mach/thread_switch.h>
+#include <mach/mach_host.h>
+#include <mach/mach.h> /* For generic MACH support */
+
+
+#ifndef __POSIX_LIB__
+#define __POSIX_LIB__
+#endif
+
+#include "posix_sched.h" /* For POSIX scheduling policy & parameter */
+#include "pthread_machdep.h" /* Machine-dependent definitions. */
+
+extern kern_return_t syscall_thread_switch(mach_port_name_t, int, mach_msg_timeout_t);
+
+/*
+ * Compiled-in limits
+ */
+#undef _POSIX_THREAD_KEYS_MAX
+#define _POSIX_THREAD_KEYS_MAX 128
+
+/*
+ * Threads
+ */
+typedef struct _pthread
+{
+ long sig; /* Unique signature for this structure */
+ struct _pthread_handler_rec *cleanup_stack;
+ pthread_lock_t lock; /* Used for internal mutex on structure */
+ int detached;
+ int inherit;
+ int policy;
+ struct sched_param param;
+ struct _pthread_mutex *mutexes;
+ struct _pthread *joiner;
+ int pad1;
+ void *exit_value;
+ semaphore_t death; /* pthread_join() uses this to wait for death's call */
+ mach_port_t kernel_thread; /* kernel thread this thread is bound to */
+ void *(*fun)(void*);/* Thread start routine */
+ void *arg; /* Argment for thread start routine */
+ int cancel_state; /* Whether thread can be cancelled */
+ int err_no; /* thread-local errno */
+ void *tsd[_POSIX_THREAD_KEYS_MAX]; /* Thread specific data */
+ void *stackaddr; /* Base of the stack (is aligned on vm_page_size boundary */
+ size_t stacksize; /* Size of the stack (is a multiple of vm_page_size and >= PTHREAD_STACK_MIN) */
+ mach_port_t reply_port; /* Cached MiG reply port */
+ void *cthread_self; /* cthread_self() if somebody calls cthread_set_self() */
+ boolean_t freeStackOnExit;/* Should we free the stack when we're done? */
+} *pthread_t;
+
+
+/*
+ * Thread attributes
+ */
+typedef struct
+{
+ long sig; /* Unique signature for this structure */
+ pthread_lock_t lock; /* Used for internal mutex on structure */
+ int detached;
+ int inherit;
+ int policy;
+ struct sched_param param;
+ void *stackaddr; /* Base of the stack (is aligned on vm_page_size boundary */
+ size_t stacksize; /* Size of the stack (is a multiple of vm_page_size and >= PTHREAD_STACK_MIN) */
+ boolean_t freeStackOnExit;/* Should we free the stack when we exit? */
+} pthread_attr_t;
+
+/*
+ * Mutex attributes
+ */
+typedef struct
+{
+ long sig; /* Unique signature for this structure */
+ int prioceiling;
+ u_int32_t protocol:2, /* protocol attribute */
+ type:2, /* mutex type */
+ rfu:28;
+} pthread_mutexattr_t;
+
+/*
+ * Mutex variables
+ */
+typedef struct _pthread_mutex
+{
+ long sig; /* Unique signature for this structure */
+ pthread_lock_t lock; /* Used for internal mutex on structure */
+ int waiters:30, /* Count of threads waiting for this mutex */
+ def:1,
+ cond_lock:1; /* Is there a condition locking me? */
+ pthread_t owner; /* Which thread has this mutex locked */
+ mach_port_t sem; /* Semaphore used for waiting */
+ u_int32_t protocol:2, /* protocol */
+ type:2, /* mutex type */
+ rfu:12,
+ lock_count:16;
+ struct _pthread_mutex *next, *prev; /* List of other mutexes he owns */
+ struct _pthread_cond *busy; /* List of condition variables using this mutex */
+ int prioceiling;
+ int priority; /* Priority to restore when mutex unlocked */
+} pthread_mutex_t;
+
+/*
+ * Condition variable attributes
+ */
+typedef struct
+{
+ long sig; /* Unique signature for this structure */
+ int unsupported;
+} pthread_condattr_t;
+
+/*
+ * Condition variables
+ */
+typedef struct _pthread_cond
+{
+ long sig; /* Unique signature for this structure */
+ pthread_lock_t lock; /* Used for internal mutex on structure */
+ mach_port_t sem; /* Kernel semaphore */
+ struct _pthread_cond *next, *prev; /* List of condition variables using mutex */
+ struct _pthread_mutex *busy; /* mutex associated with variable */
+ int waiters:16, /* Number of threads waiting */
+ sigspending:16; /* Number of outstanding signals */
+} pthread_cond_t;
+
+/*
+ * Initialization control (once) variables
+ */
+typedef struct
+{
+ long sig; /* Unique signature for this structure */
+ pthread_lock_t lock; /* Used for internal mutex on structure */
+} pthread_once_t;
+
+typedef struct {
+ long sig; /* Unique signature for this structure */
+ int pshared;
+ int rfu[2]; /* reserved for future use */
+} pthread_rwlockattr_t;
+
+typedef struct {
+ long sig;
+ pthread_mutex_t lock; /* monitor lock */
+ int state;
+ pthread_cond_t read_signal;
+ pthread_cond_t write_signal;
+ int blocked_writers;
+ int pshared;
+ int rfu[3];
+} pthread_rwlock_t;
+
+#include "pthread.h"
+
+#define _PTHREAD_DEFAULT_INHERITSCHED PTHREAD_INHERIT_SCHED
+#define _PTHREAD_DEFAULT_PROTOCOL PTHREAD_PRIO_NONE
+#define _PTHREAD_DEFAULT_PRIOCEILING 0
+#define _PTHREAD_DEFAULT_POLICY SCHED_OTHER
+#define _PTHREAD_DEFAULT_STACKSIZE 0x80000 /* 512K */
+
+#define _PTHREAD_NO_SIG 0x00000000
+#define _PTHREAD_MUTEX_ATTR_SIG 0x4D545841 /* 'MTXA' */
+#define _PTHREAD_MUTEX_SIG 0x4D555458 /* 'MUTX' */
+#define _PTHREAD_MUTEX_SIG_init 0x32AAABA7 /* [almost] ~'MUTX' */
+#define _PTHREAD_COND_ATTR_SIG 0x434E4441 /* 'CNDA' */
+#define _PTHREAD_COND_SIG 0x434F4E44 /* 'COND' */
+#define _PTHREAD_COND_SIG_init 0x3CB0B1BB /* [almost] ~'COND' */
+#define _PTHREAD_ATTR_SIG 0x54484441 /* 'THDA' */
+#define _PTHREAD_ONCE_SIG 0x4F4E4345 /* 'ONCE' */
+#define _PTHREAD_ONCE_SIG_init 0x30B1BCBA /* [almost] ~'ONCE' */
+#define _PTHREAD_SIG 0x54485244 /* 'THRD' */
+#define _PTHREAD_RWLOCK_ATTR_SIG 0x52574C41 /* 'RWLA' */
+#define _PTHREAD_RWLOCK_SIG 0x52574C4B /* 'RWLK' */
+#define _PTHREAD_RWLOCK_SIG_init 0x2DA8B3B4 /* [almost] ~'RWLK' */
+
+#define _PTHREAD_CREATE_PARENT 4
+#define _PTHREAD_EXITED 8
+
+#define _PTHREAD_CANCEL_STATE_MASK 0xFE
+#define _PTHREAD_CANCEL_TYPE_MASK 0xFD
+#define _PTHREAD_CANCEL_PENDING 0x10 /* pthread_cancel() has been called for this thread */
+
+extern boolean_t swtch_pri(int);
+
+/* Number of times to spin when the lock is unavailable and we are on a
+ multiprocessor. On a uniprocessor we yield the processor immediately. */
+#define MP_SPIN_TRIES 1000
+extern int _spin_tries;
+extern int __is_threaded;
+extern int _cpu_has_altivec;
+
+/* Internal mutex locks for data structures */
+#define TRY_LOCK(v) (!__is_threaded || _spin_lock_try((pthread_lock_t *)&(v)))
+#define LOCK(v) \
+do { \
+ if (__is_threaded) { \
+ int tries = _spin_tries; \
+ \
+ while (!_spin_lock_try((pthread_lock_t *)&(v))) { \
+ if (tries-- > 0) \
+ continue; \
+ \
+ syscall_thread_switch(THREAD_NULL, SWITCH_OPTION_DEPRESS, 1); \
+ tries = _spin_tries; \
+ } \
+ } \
+} while (0)
+#define UNLOCK(v) \
+do { \
+ if (__is_threaded) \
+ _spin_unlock((pthread_lock_t *)&(v)); \
+} while (0)
+
+#ifndef ESUCCESS
+#define ESUCCESS 0
+#endif
+
+#ifndef PTHREAD_MACH_CALL
+#define PTHREAD_MACH_CALL(expr, ret) (ret) = (expr)
+#endif
+
+/* Prototypes. */
+
+/* Functions defined in machine-dependent files. */
+extern vm_address_t _sp(void);
+extern vm_address_t _adjust_sp(vm_address_t sp);
+extern void _spin_lock(pthread_lock_t *lockp);
+extern int _spin_lock_try(pthread_lock_t *lockp);
+extern void _spin_unlock(pthread_lock_t *lockp);
+extern void _pthread_setup(pthread_t th, void (*f)(pthread_t), void *sp, int suspended, int needresume);
+
+extern void _pthread_tsd_cleanup(pthread_t self);
+
+__private_extern__ semaphore_t new_sem_from_pool(void);
+__private_extern__ void restore_sem_to_pool(semaphore_t);
+#endif /* _POSIX_PTHREAD_INTERNALS_H */
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