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#ifndef RUBY_THREAD_PTHREAD_H
#define RUBY_THREAD_PTHREAD_H
/**********************************************************************
thread_pthread.h -
$Author$
Copyright (C) 2004-2007 Koichi Sasada
**********************************************************************/
#ifdef HAVE_PTHREAD_NP_H
#include <pthread_np.h>
#endif
#define RB_NATIVETHREAD_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
#define RB_NATIVETHREAD_COND_INIT PTHREAD_COND_INITIALIZER
// per-Thead scheduler helper data
struct rb_thread_sched_item {
struct {
struct ccan_list_node ubf;
// connected to ractor->threads.sched.reqdyq
// locked by ractor->threads.sched.lock
struct ccan_list_node readyq;
// connected to vm->ractor.sched.timeslice_threads
// locked by vm->ractor.sched.lock
struct ccan_list_node timeslice_threads;
// connected to vm->ractor.sched.running_threads
// locked by vm->ractor.sched.lock
struct ccan_list_node running_threads;
// connected to vm->ractor.sched.zombie_threads
struct ccan_list_node zombie_threads;
} node;
// this data should be protected by timer_th.waiting_lock
struct {
enum thread_sched_waiting_flag {
thread_sched_waiting_none = 0x00,
thread_sched_waiting_timeout = 0x01,
thread_sched_waiting_io_read = 0x02,
thread_sched_waiting_io_write = 0x08,
thread_sched_waiting_io_force = 0x40, // ignore readable
} flags;
struct {
// should be compat with hrtime.h
#ifdef MY_RUBY_BUILD_MAY_TIME_TRAVEL
int128_t timeout;
#else
uint64_t timeout;
#endif
int fd; // -1 for timeout only
int result;
} data;
// connected to timer_th.waiting
struct ccan_list_node node;
} waiting_reason;
bool finished;
bool malloc_stack;
void *context_stack;
struct coroutine_context *context;
};
struct rb_native_thread {
rb_atomic_t serial;
struct rb_vm_struct *vm;
rb_nativethread_id_t thread_id;
#ifdef RB_THREAD_T_HAS_NATIVE_ID
int tid;
#endif
struct rb_thread_struct *running_thread;
// to control native thread
#if defined(__GLIBC__) || defined(__FreeBSD__)
union
#else
/*
* assume the platform condvars are badly implemented and have a
* "memory" of which mutex they're associated with
*/
struct
#endif
{
rb_nativethread_cond_t intr; /* th->interrupt_lock */
rb_nativethread_cond_t readyq; /* use sched->lock */
} cond;
#ifdef USE_SIGALTSTACK
void *altstack;
#endif
struct coroutine_context *nt_context;
int dedicated;
size_t machine_stack_maxsize;
};
#undef except
#undef try
#undef leave
#undef finally
// per-Ractor
struct rb_thread_sched {
rb_nativethread_lock_t lock_;
#if VM_CHECK_MODE
struct rb_thread_struct *lock_owner;
#endif
struct rb_thread_struct *running; // running thread or NULL
bool is_running;
bool is_running_timeslice;
bool enable_mn_threads;
struct ccan_list_head readyq;
int readyq_cnt;
// ractor scheduling
struct ccan_list_node grq_node;
};
#ifdef RB_THREAD_LOCAL_SPECIFIER
NOINLINE(void rb_current_ec_set(struct rb_execution_context_struct *));
NOINLINE(struct rb_execution_context_struct *rb_current_ec_noinline(void));
# ifdef __APPLE__
// on Darwin, TLS can not be accessed across .so
struct rb_execution_context_struct *rb_current_ec(void);
# else
RUBY_EXTERN RB_THREAD_LOCAL_SPECIFIER struct rb_execution_context_struct *ruby_current_ec;
// for RUBY_DEBUG_LOG()
RUBY_EXTERN RB_THREAD_LOCAL_SPECIFIER rb_atomic_t ruby_nt_serial;
#define RUBY_NT_SERIAL 1
# endif
#else
typedef pthread_key_t native_tls_key_t;
static inline void *
native_tls_get(native_tls_key_t key)
{
// return value should be checked by caller
return pthread_getspecific(key);
}
static inline void
native_tls_set(native_tls_key_t key, void *ptr)
{
if (UNLIKELY(pthread_setspecific(key, ptr) != 0)) {
rb_bug("pthread_setspecific error");
}
}
RUBY_EXTERN native_tls_key_t ruby_current_ec_key;
#endif
#endif /* RUBY_THREAD_PTHREAD_H */
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