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ant/include/sugar.h
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sugar.h
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#ifndef SUGAR_H
#define SUGAR_H
#include "types.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 _gc_stk_mark; \
if (!mco_running()) \
(js_)->cstk.main_lo = (void *)&_gc_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 struct coroutine {
ant_t *js;
jsval_t this_val;
jsval_t super_val;
jsval_t new_target;
jsval_t result;
jsval_t async_func;
jsval_t yield_value;
jsval_t *args;
jsval_t awaited_promise;
jsval_t async_promise;
struct coroutine *prev;
struct coroutine *next;
mco_coro *mco;
struct sv_vm *sv_vm;
jsoff_t resume_point;
coroutine_type_t type;
int nargs;
bool is_settled;
bool is_error;
bool is_done;
bool mco_started;
bool is_ready;
} coroutine_t;
typedef struct {
coroutine_t *head;
coroutine_t *tail;
} coroutine_queue_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 free_coroutine(coroutine_t *coro);
jsval_t start_async_in_coroutine(ant_t *js, const char *code, size_t code_len, jsval_t closure_scope, jsval_t *args, int nargs);
jsval_t resume_coroutine_wrapper(ant_t *js, jsval_t *args, int nargs);
jsval_t reject_coroutine_wrapper(ant_t *js, jsval_t *args, int nargs);
bool has_ready_coroutines(void);
bool has_pending_coroutines(void);
#endif

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