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#ifndef _PTHREAD_IMPL_H
#define _PTHREAD_IMPL_H
#include <pthread.h>
#include <signal.h>
#include <errno.h>
#include <limits.h>
#include "libc.h"
#include "syscall.h"
#include "atomic.h"
#include "futex.h"
#define pthread __pthread
struct pthread {
/* Part 1 -- these fields may be external or
* internal (accessed via asm) ABI. Do not change. */
struct pthread *self;
void **dtv, *unused1, *unused2;
uintptr_t sysinfo;
uintptr_t canary, canary2;
/* Part 2 -- implementation details, non-ABI. */
int tid;
int errno_val;
volatile int detach_state;
volatile int cancel;
volatile unsigned char canceldisable, cancelasync;
unsigned char tsd_used:1;
unsigned char unblock_cancel:1;
unsigned char dlerror_flag:1;
unsigned char *map_base;
size_t map_size;
void *stack;
size_t stack_size;
size_t guard_size;
void *start_arg;
void *(*start)(void *);
void *result;
struct __ptcb *cancelbuf;
void **tsd;
struct {
volatile void *volatile head;
long off;
volatile void *volatile pending;
} robust_list;
volatile int timer_id;
locale_t locale;
volatile int killlock[1];
char *dlerror_buf;
void *stdio_locks;
/* Part 3 -- the positions of these fields relative to
* the end of the structure is external and internal ABI. */
uintptr_t canary_at_end;
void **dtv_copy;
};
struct start_sched_args {
void *start_arg;
void *(*start_fn)(void *);
sigset_t mask;
pthread_attr_t *attr;
volatile int futex;
};
enum {
DT_EXITED = 0,
DT_EXITING,
DT_JOINABLE,
DT_DETACHED,
DT_DYNAMIC,
};
struct __timer {
int timerid;
pthread_t thread;
};
#define __SU (sizeof(size_t)/sizeof(int))
#define _a_stacksize __u.__s[0]
#define _a_guardsize __u.__s[1]
#define _a_stackaddr __u.__s[2]
#define _a_detach __u.__i[3*__SU+0]
#define _a_sched __u.__i[3*__SU+1]
#define _a_policy __u.__i[3*__SU+2]
#define _a_prio __u.__i[3*__SU+3]
#define _m_type __u.__i[0]
#define _m_lock __u.__vi[1]
#define _m_waiters __u.__vi[2]
#define _m_prev __u.__p[3]
#define _m_next __u.__p[4]
#define _m_count __u.__i[5]
#define _c_shared __u.__p[0]
#define _c_seq __u.__vi[2]
#define _c_waiters __u.__vi[3]
#define _c_clock __u.__i[4]
#define _c_lock __u.__vi[8]
#define _c_head __u.__p[1]
#define _c_tail __u.__p[5]
#define _rw_lock __u.__vi[0]
#define _rw_waiters __u.__vi[1]
#define _rw_shared __u.__i[2]
#define _b_lock __u.__vi[0]
#define _b_waiters __u.__vi[1]
#define _b_limit __u.__i[2]
#define _b_count __u.__vi[3]
#define _b_waiters2 __u.__vi[4]
#define _b_inst __u.__p[3]
#include "pthread_arch.h"
#ifndef CANARY
#define CANARY canary
#endif
#ifndef DTP_OFFSET
#define DTP_OFFSET 0
#endif
#ifndef tls_mod_off_t
#define tls_mod_off_t size_t
#endif
#define SIGTIMER 32
#define SIGCANCEL 33
#define SIGSYNCCALL 34
#define SIGALL_SET ((sigset_t *)(const unsigned long long [2]){ -1,-1 })
#define SIGPT_SET \
((sigset_t *)(const unsigned long [_NSIG/8/sizeof(long)]){ \
[sizeof(long)==4] = 3UL<<(32*(sizeof(long)>4)) })
#define SIGTIMER_SET \
((sigset_t *)(const unsigned long [_NSIG/8/sizeof(long)]){ \
0x80000000 })
int __clone(int (*)(void *), void *, int, void *, ...);
int __set_thread_area(void *);
int __libc_sigaction(int, const struct sigaction *, struct sigaction *);
void __unmapself(void *, size_t);
void __vm_wait(void);
void __vm_lock(void);
void __vm_unlock(void);
int __timedwait(volatile int *, int, clockid_t, const struct timespec *, int);
int __timedwait_cp(volatile int *, int, clockid_t, const struct timespec *, int);
void __wait(volatile int *, volatile int *, int, int);
static inline void __wake(volatile void *addr, int cnt, int priv)
{
if (priv) priv = FUTEX_PRIVATE;
if (cnt<0) cnt = INT_MAX;
__syscall(SYS_futex, addr, FUTEX_WAKE|priv, cnt) != -ENOSYS ||
__syscall(SYS_futex, addr, FUTEX_WAKE, cnt);
}
static inline void __futexwait(volatile void *addr, int val, int priv)
{
if (priv) priv = FUTEX_PRIVATE;
__syscall(SYS_futex, addr, FUTEX_WAIT|priv, val, 0) != -ENOSYS ||
__syscall(SYS_futex, addr, FUTEX_WAIT, val, 0);
}
void __acquire_ptc(void);
void __release_ptc(void);
void __inhibit_ptc(void);
void __block_all_sigs(void *);
void __block_app_sigs(void *);
void __restore_sigs(void *);
#define DEFAULT_STACK_SIZE 81920
#define DEFAULT_GUARD_SIZE 4096
#define __ATTRP_C11_THREAD ((void*)(uintptr_t)-1)
#endif
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