113 lines
5.4 KiB
C
113 lines
5.4 KiB
C
#if !defined(DUK_TRANS_DVALUE_H_INCLUDED)
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#define DUK_TRANS_DVALUE_H_INCLUDED
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#include "duktape.h"
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typedef struct duk_dvalue duk_dvalue;
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typedef struct duk_trans_buffer duk_trans_buffer;
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typedef struct duk_trans_dvalue_ctx duk_trans_dvalue_ctx;
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typedef void (*duk_trans_dvalue_received_function)(duk_trans_dvalue_ctx *ctx, duk_dvalue *dv);
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typedef void (*duk_trans_dvalue_cooperate_function)(duk_trans_dvalue_ctx *ctx, int block);
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typedef void (*duk_trans_dvalue_handshake_function)(duk_trans_dvalue_ctx *ctx, const char *handshake_line);
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typedef void (*duk_trans_dvalue_detached_function)(duk_trans_dvalue_ctx *ctx);
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/* struct duk_dvalue 'tag' values, note that these have nothing to do with
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* Duktape debug protocol inital byte. Struct fields used with the type
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* are noted next to the define.
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*/
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#define DUK_DVALUE_EOM 1 /* no fields */
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#define DUK_DVALUE_REQ 2 /* no fields */
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#define DUK_DVALUE_REP 3 /* no fields */
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#define DUK_DVALUE_ERR 4 /* no fields */
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#define DUK_DVALUE_NFY 5 /* no fields */
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#define DUK_DVALUE_INTEGER 6 /* i: 32-bit signed integer */
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#define DUK_DVALUE_STRING 7 /* buf: string data, len: string length */
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#define DUK_DVALUE_BUFFER 8 /* buf: buffer data, len: buffer length */
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#define DUK_DVALUE_UNUSED 9 /* no fields */
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#define DUK_DVALUE_UNDEFINED 10 /* no fields */
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#define DUK_DVALUE_NULL 11 /* no fields */
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#define DUK_DVALUE_TRUE 12 /* no fields */
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#define DUK_DVALUE_FALSE 13 /* no fields */
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#define DUK_DVALUE_NUMBER 14 /* d: ieee double */
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#define DUK_DVALUE_OBJECT 15 /* i: class number, buf: pointer data, len: pointer length */
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#define DUK_DVALUE_POINTER 16 /* buf: pointer data, len: pointer length */
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#define DUK_DVALUE_LIGHTFUNC 17 /* i: lightfunc flags, buf: pointer data, len: pointer length */
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#define DUK_DVALUE_HEAPPTR 18 /* buf: pointer data, len: pointer length */
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struct duk_dvalue {
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/* Could use a union for the value but the gain would be relatively small. */
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int tag;
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int i;
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double d;
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size_t len;
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unsigned char *buf;
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};
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struct duk_trans_buffer {
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unsigned char *base;
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size_t write_offset;
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size_t read_offset;
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size_t alloc_size;
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};
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struct duk_trans_dvalue_ctx {
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duk_trans_dvalue_received_function received;
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duk_trans_dvalue_cooperate_function cooperate;
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duk_trans_dvalue_handshake_function handshake;
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duk_trans_dvalue_detached_function detached;
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duk_trans_buffer send_buf; /* sending towards Duktape (duktape read callback) */
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duk_trans_buffer recv_buf; /* receiving from Duktape (duktape write callback) */
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int handshake_done;
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int double_byteorder; /* 0=little endian, 1=big endian, 2=mixed endian */
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};
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/* Buffer size needed by duk_dvalue_to_string(). */
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#define DUK_DVALUE_TOSTRING_BUFLEN 256
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/* Dvalue handling. */
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duk_dvalue *duk_dvalue_alloc(void);
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void duk_dvalue_free(duk_dvalue *dv);
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void duk_dvalue_to_string(duk_dvalue *dv, char *buf);
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duk_dvalue *duk_dvalue_make_tag(int tag);
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duk_dvalue *duk_dvalue_make_tag_int(int tag, int intval);
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duk_dvalue *duk_dvalue_make_tag_double(int tag, double dblval);
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duk_dvalue *duk_dvalue_make_tag_data(int tag, const char *buf, size_t len);
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duk_dvalue *duk_dvalue_make_tag_int_data(int tag, int intval, const char *buf, size_t len);
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/* Initializing and freeing the transport context. */
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duk_trans_dvalue_ctx *duk_trans_dvalue_init(void);
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void duk_trans_dvalue_free(duk_trans_dvalue_ctx *ctx);
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/* Sending dvalues towards Duktape. */
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void duk_trans_dvalue_send(duk_trans_dvalue_ctx *ctx, duk_dvalue *dv);
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void duk_trans_dvalue_send_eom(duk_trans_dvalue_ctx *ctx);
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void duk_trans_dvalue_send_req(duk_trans_dvalue_ctx *ctx);
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void duk_trans_dvalue_send_rep(duk_trans_dvalue_ctx *ctx);
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void duk_trans_dvalue_send_err(duk_trans_dvalue_ctx *ctx);
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void duk_trans_dvalue_send_nfy(duk_trans_dvalue_ctx *ctx);
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void duk_trans_dvalue_send_integer(duk_trans_dvalue_ctx *ctx, int val);
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void duk_trans_dvalue_send_string(duk_trans_dvalue_ctx *ctx, const char *str);
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void duk_trans_dvalue_send_lstring(duk_trans_dvalue_ctx *ctx, const char *str, size_t len);
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void duk_trans_dvalue_send_buffer(duk_trans_dvalue_ctx *ctx, const char *buf, size_t len);
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void duk_trans_dvalue_send_unused(duk_trans_dvalue_ctx *ctx);
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void duk_trans_dvalue_send_undefined(duk_trans_dvalue_ctx *ctx);
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void duk_trans_dvalue_send_null(duk_trans_dvalue_ctx *ctx);
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void duk_trans_dvalue_send_true(duk_trans_dvalue_ctx *ctx);
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void duk_trans_dvalue_send_false(duk_trans_dvalue_ctx *ctx);
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void duk_trans_dvalue_send_number(duk_trans_dvalue_ctx *ctx, double val);
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void duk_trans_dvalue_send_object(duk_trans_dvalue_ctx *ctx, int classnum, const char *ptr_data, size_t ptr_len);
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void duk_trans_dvalue_send_pointer(duk_trans_dvalue_ctx *ctx, const char *ptr_data, size_t ptr_len);
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void duk_trans_dvalue_send_lightfunc(duk_trans_dvalue_ctx *ctx, int lf_flags, const char *ptr_data, size_t ptr_len);
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void duk_trans_dvalue_send_heapptr(duk_trans_dvalue_ctx *ctx, const char *ptr_data, size_t ptr_len);
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void duk_trans_dvalue_send_req_cmd(duk_trans_dvalue_ctx *ctx, int cmd);
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/* Duktape debug callbacks provided by the transport. */
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duk_size_t duk_trans_dvalue_read_cb(void *udata, char *buffer, duk_size_t length);
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duk_size_t duk_trans_dvalue_write_cb(void *udata, const char *buffer, duk_size_t length);
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duk_size_t duk_trans_dvalue_peek_cb(void *udata);
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void duk_trans_dvalue_read_flush_cb(void *udata);
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void duk_trans_dvalue_write_flush_cb(void *udata);
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void duk_trans_dvalue_detached_cb(duk_context *ctx, void *udata);
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#endif /* DUK_TRANS_DVALUE_H_INCLUDED */
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