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sugar.h
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sugar.h
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#ifndef SUGAR_H
#define SUGAR_H
#include "types.h"
#include <stdbool.h>
#include <stdint.h>
#include <stddef.h>
#include <stdlib.h>
#include <minicoro.h>
#define CORO_MALLOC(size) calloc(1, size)
#define CORO_FREE(ptr) free(ptr)
#define MCO_RESUME_SAVE(js_, mco_, res_) do { \
void *_saved_cstk = (js_)->cstk.base; \
size_t _saved_limit = (js_)->cstk.limit; \
volatile char _stk_mark; \
if (!mco_running()) \
(js_)->cstk.main_lo = (void *)&_stk_mark; \
(res_) = mco_resume((mco_)); \
(js_)->cstk.base = _saved_cstk; \
(js_)->cstk.limit = _saved_limit; \
} while (0)
#define MCO_CORO_STACK_ENTER(js_, mco_) do { \
volatile char _coro_marker; \
(js_)->cstk.base = (void *)&_coro_marker; \
(js_)->cstk.limit = (mco_)->stack_size; \
} while (0)
#define CORO_PER_TICK_LIMIT 100000
typedef enum {
CORO_ASYNC_AWAIT,
CORO_GENERATOR,
CORO_ASYNC_GENERATOR
} coroutine_type_t;
typedef enum {
CORO_HOLD_ACTIVE = 1u << 0,
CORO_HOLD_PENDING = 1u << 1,
CORO_HOLD_GENERATOR = 1u << 2,
CORO_HOLD_AWAIT = 1u << 3,
} coroutine_hold_t;
typedef struct coroutine {
ant_t *js;
ant_value_t this_val;
ant_value_t super_val;
ant_value_t new_target;
ant_value_t result;
ant_value_t async_func;
ant_value_t yield_value;
ant_value_t *args;
ant_value_t awaited_promise;
ant_value_t async_promise;
struct coroutine *active_parent;
struct coroutine *active_prev;
struct coroutine *prev;
struct coroutine *next;
mco_coro *mco;
struct sv_vm *owner_vm;
struct sv_vm *sv_vm;
ant_offset_t resume_point;
coroutine_type_t type;
int owner_entry_fp;
int owner_saved_fp;
int nargs;
uint32_t refcount;
uint8_t hold_bits;
bool is_settled;
bool is_error;
bool is_done;
bool materialized;
bool mco_started;
bool is_ready;
bool did_suspend;
bool await_registered;
bool destroy_requested;
} coroutine_t;
typedef struct {
coroutine_t *head;
coroutine_t *tail;
} coroutine_queue_t;
typedef enum {
JS_AWAIT_PENDING = 0,
JS_AWAIT_ERROR,
} js_await_state_t;
typedef struct {
js_await_state_t state;
ant_value_t value;
} js_await_result_t;
extern coroutine_queue_t pending_coroutines;
extern uint32_t coros_this_tick;
void enqueue_coroutine(coroutine_t *coro);
void remove_coroutine(coroutine_t *coro);
void coroutine_retain(coroutine_t *coro);
void coroutine_release(coroutine_t *coro);
void coroutine_hold(coroutine_t *coro, uint8_t hold);
void coroutine_unhold(coroutine_t *coro, uint8_t hold);
void reap_retired_coroutines(void);
void free_coroutine(coroutine_t *coro);
void coroutine_clear_await_registration(coroutine_t *coro);
ant_value_t start_async_in_coroutine(ant_t *js, const char *code, size_t code_len, ant_value_t closure_scope, ant_value_t *args, int nargs);
ant_value_t resume_coroutine_wrapper(ant_t *js, ant_value_t *args, int nargs);
ant_value_t reject_coroutine_wrapper(ant_t *js, ant_value_t *args, int nargs);
js_await_result_t js_promise_await_coroutine(ant_t *js, ant_value_t promise, coroutine_t *coro);
void js_promise_clear_await_coroutine(ant_t *js, ant_value_t promise, coroutine_t *coro);
void settle_and_resume_coroutine(ant_t *js, coroutine_t *coro, ant_value_t value, bool is_error);
bool has_ready_coroutines(void);
bool has_pending_coroutines(void);
#endif

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