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ruby--ruby/ractor.h

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#include "ruby/ruby.h"
#include "vm_core.h"
#include "id_table.h"
#include "vm_debug.h"
#include "ractor_pub.h"
#ifndef RACTOR_CHECK_MODE
#define RACTOR_CHECK_MODE (0 || VM_CHECK_MODE || RUBY_DEBUG)
#endif
enum rb_ractor_basket_type {
basket_type_none,
basket_type_shareable,
basket_type_copy_marshal,
basket_type_copy_custom,
basket_type_move,
basket_type_exception,
};
struct rb_ractor_basket {
enum rb_ractor_basket_type type;
VALUE v;
VALUE sender;
};
struct rb_ractor_queue {
struct rb_ractor_basket *baskets;
int cnt;
int size;
};
struct rb_ractor_waiting_list {
int cnt;
int size;
rb_ractor_t **ractors;
};
struct rb_ractor_struct {
// ractor lock
rb_nativethread_lock_t lock;
#if RACTOR_CHECK_MODE > 0
VALUE locked_by;
#endif
// communication
struct rb_ractor_queue incoming_queue;
bool incoming_port_closed;
bool outgoing_port_closed;
struct rb_ractor_waiting_list taking_ractors;
struct ractor_wait {
enum ractor_wait_status {
wait_none = 0x00,
wait_recving = 0x01,
wait_taking = 0x02,
wait_yielding = 0x04,
} status;
enum ractor_wakeup_status {
wakeup_none,
wakeup_by_send,
wakeup_by_yield,
wakeup_by_take,
wakeup_by_close,
wakeup_by_interrupt,
wakeup_by_retry,
} wakeup_status;
struct rb_ractor_basket taken_basket;
struct rb_ractor_basket yielded_basket;
rb_nativethread_cond_t cond;
} wait;
// vm wide barrier synchronization
rb_nativethread_cond_t barrier_wait_cond;
// thread management
struct {
struct list_head set;
unsigned int cnt;
unsigned int blocking_cnt;
unsigned int sleeper;
rb_global_vm_lock_t gvl;
rb_execution_context_t *running_ec;
rb_thread_t *main;
} threads;
VALUE thgroup_default;
// identity
VALUE self;
uint32_t id;
VALUE name;
VALUE loc;
// created
// | ready to run
// ====================== inserted to vm->ractor
// v
// blocking <---+ all threads are blocking
// | |
// v |
// running -----+
// | all threads are terminated.
// ====================== removed from vm->ractor
// v
// terminated
//
// status is protected by VM lock (global state)
enum ractor_status {
ractor_created,
ractor_running,
ractor_blocking,
ractor_terminated,
} status_;
struct list_node vmlr_node;
VALUE r_stdin;
VALUE r_stdout;
VALUE r_stderr;
}; // rb_ractor_t is defined in vm_core.h
rb_ractor_t *rb_ractor_main_alloc(void);
void rb_ractor_main_setup(rb_vm_t *vm, rb_ractor_t *main_ractor, rb_thread_t *main_thread);
VALUE rb_ractor_self(const rb_ractor_t *g);
void rb_ractor_atexit(rb_execution_context_t *ec, VALUE result);
void rb_ractor_atexit_exception(rb_execution_context_t *ec);
void rb_ractor_teardown(rb_execution_context_t *ec);
void rb_ractor_recv_parameters(rb_execution_context_t *ec, rb_ractor_t *g, int len, VALUE *ptr);
void rb_ractor_send_parameters(rb_execution_context_t *ec, rb_ractor_t *g, VALUE args);
VALUE rb_thread_create_ractor(rb_ractor_t *g, VALUE args, VALUE proc); // defined in thread.c
rb_global_vm_lock_t *rb_ractor_gvl(rb_ractor_t *);
int rb_ractor_living_thread_num(const rb_ractor_t *);
VALUE rb_ractor_thread_list(rb_ractor_t *r);
void rb_ractor_living_threads_init(rb_ractor_t *r);
void rb_ractor_living_threads_insert(rb_ractor_t *r, rb_thread_t *th);
void rb_ractor_living_threads_remove(rb_ractor_t *r, rb_thread_t *th);
void rb_ractor_blocking_threads_inc(rb_ractor_t *r, const char *file, int line); // TODO: file, line only for RUBY_DEBUG_LOG
void rb_ractor_blocking_threads_dec(rb_ractor_t *r, const char *file, int line); // TODO: file, line only for RUBY_DEBUG_LOG
void rb_ractor_vm_barrier_interrupt_running_thread(rb_ractor_t *r);
void rb_ractor_terminate_interrupt_main_thread(rb_ractor_t *r);
void rb_ractor_terminate_all(void);
static inline bool
rb_ractor_status_p(rb_ractor_t *r, enum ractor_status status)
{
return r->status_ == status;
}
static inline void
rb_ractor_sleeper_threads_inc(rb_ractor_t *r)
{
r->threads.sleeper++;
}
static inline void
rb_ractor_sleeper_threads_dec(rb_ractor_t *r)
{
r->threads.sleeper--;
}
static inline void
rb_ractor_sleeper_threads_clear(rb_ractor_t *r)
{
r->threads.sleeper = 0;
}
static inline int
rb_ractor_sleeper_thread_num(rb_ractor_t *r)
{
return r->threads.sleeper;
}
static inline void
rb_ractor_thread_switch(rb_ractor_t *cr, rb_thread_t *th)
{
if (cr->threads.running_ec != th->ec) {
if (0) fprintf(stderr, "rb_ractor_thread_switch ec:%p->%p\n",
(void *)cr->threads.running_ec, (void *)th->ec);
}
else {
return;
}
if (cr->threads.running_ec != th->ec) {
th->running_time_us = 0;
}
cr->threads.running_ec = th->ec;
VM_ASSERT(cr == GET_RACTOR());
}
static inline void
rb_ractor_set_current_ec(rb_ractor_t *cr, rb_execution_context_t *ec)
{
native_tls_set(ruby_current_ec_key, ec);
if (cr->threads.running_ec != ec) {
if (0) fprintf(stderr, "rb_ractor_set_current_ec ec:%p->%p\n",
(void *)cr->threads.running_ec, (void *)ec);
}
else {
VM_ASSERT(0); // should be different
}
cr->threads.running_ec = ec;
}
void rb_vm_ractor_blocking_cnt_inc(rb_vm_t *vm, rb_ractor_t *cr, const char *file, int line);
void rb_vm_ractor_blocking_cnt_dec(rb_vm_t *vm, rb_ractor_t *cr, const char *file, int line);
uint32_t rb_ractor_id(const rb_ractor_t *r);
#if RACTOR_CHECK_MODE > 0
uint32_t rb_ractor_current_id(void);
static inline void
rb_ractor_setup_belonging_to(VALUE obj, uint32_t rid)
{
VALUE flags = RBASIC(obj)->flags & 0xffffffff; // 4B
RBASIC(obj)->flags = flags | ((VALUE)rid << 32);
}
static inline void
rb_ractor_setup_belonging(VALUE obj)
{
rb_ractor_setup_belonging_to(obj, rb_ractor_current_id());
}
static inline uint32_t
rb_ractor_belonging(VALUE obj)
{
if (rb_ractor_shareable_p(obj)) {
return 0;
}
else {
return RBASIC(obj)->flags >> 32;
}
}
static inline VALUE
rb_ractor_confirm_belonging(VALUE obj)
{
uint32_t id = rb_ractor_belonging(obj);
if (id == 0) {
if (!rb_ractor_shareable_p(obj)) {
rp(obj);
rb_bug("id == 0 but not shareable");
}
}
else if (id != rb_ractor_current_id()) {
rb_bug("rb_ractor_confirm_belonging object-ractor id:%u, current-ractor id:%u", id, rb_ractor_current_id());
}
return obj;
}
#else
#define rb_ractor_confirm_belonging(obj) obj
#endif