mirror of
https://github.com/denoland/deno.git
synced 2024-10-31 09:14:20 -04:00
e742af10aa
Ensure that at most one mutable Isolate reference exists at a time. `deno_execute()` and `deno_respond()` now borrow a reference to the rust-side isolate from the caller. When we need a reference to the isolate while one of these functions is on the stack, `deno_get_data()` can be used to borrow back that reference.
72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
// Copyright 2018 the Deno authors. All rights reserved. MIT license.
|
|
#ifndef DENO_H_
|
|
#define DENO_H_
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
// Neither Rust nor Go support calling directly into C++ functions, therefore
|
|
// the public interface to libdeno is done in C.
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
// Data that gets transmitted.
|
|
typedef struct {
|
|
uint8_t* alloc_ptr; // Start of memory allocation (returned from `malloc()`).
|
|
size_t alloc_len; // Length of the memory allocation.
|
|
uint8_t* data_ptr; // Start of logical contents (within the allocation).
|
|
size_t data_len; // Length of logical contents.
|
|
} deno_buf;
|
|
|
|
struct deno_s;
|
|
typedef struct deno_s Deno;
|
|
|
|
// A callback to receive a message from a libdeno.send() javascript call.
|
|
// control_buf is valid for only for the lifetime of this callback.
|
|
// data_buf is valid until deno_respond() is called.
|
|
typedef void (*deno_recv_cb)(Deno* d, int32_t req_id, deno_buf control_buf,
|
|
deno_buf data_buf);
|
|
|
|
void deno_init();
|
|
const char* deno_v8_version();
|
|
void deno_set_v8_flags(int* argc, char** argv);
|
|
|
|
Deno* deno_new(deno_recv_cb cb);
|
|
void deno_delete(Deno* d);
|
|
|
|
// Returns the void* user_data provided in deno_new.
|
|
void* deno_get_data(Deno*);
|
|
|
|
// Returns false on error.
|
|
// Get error text with deno_last_exception().
|
|
// 0 = fail, 1 = success
|
|
int deno_execute(Deno* d, void* user_data, const char* js_filename,
|
|
const char* js_source);
|
|
|
|
// deno_respond sends up to one message back for every deno_recv_cb made.
|
|
//
|
|
// If this is called during deno_recv_cb, the issuing libdeno.send() in
|
|
// javascript will synchronously return the specified buf as an ArrayBuffer (or
|
|
// null if buf is empty).
|
|
//
|
|
// If this is called after deno_recv_cb has returned, the deno_respond
|
|
// will call into the JS callback specified by libdeno.recv().
|
|
//
|
|
// (Ideally, but not currently: After calling deno_respond(), the caller no
|
|
// longer owns `buf` and must not use it; deno_respond() is responsible for
|
|
// releasing its memory.)
|
|
//
|
|
// Calling this function more than once with the same req_id will result in
|
|
// an error.
|
|
//
|
|
// A non-zero return value, means a JS exception was encountered during the
|
|
// libdeno.recv() callback. Check deno_last_exception() for exception text.
|
|
int deno_respond(Deno* d, void* user_data, int32_t req_id, deno_buf buf);
|
|
|
|
const char* deno_last_exception(Deno* d);
|
|
|
|
void deno_terminate_execution(Deno* d);
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
#endif
|
|
#endif // DENO_H_
|