163 lines
6.2 KiB
C
163 lines
6.2 KiB
C
/***********************************************************************/
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/* */
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/* OCaml */
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/* */
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/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* en Automatique. All rights reserved. This file is distributed */
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/* under the terms of the GNU Library General Public License, with */
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/* the special exception on linking described in file ../LICENSE. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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/* Structured input/output */
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#ifndef CAML_INTEXT_H
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#define CAML_INTEXT_H
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#ifndef CAML_NAME_SPACE
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#include "compatibility.h"
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#endif
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#include "misc.h"
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#include "mlvalues.h"
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/* <private> */
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#include "io.h"
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/* Magic number */
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#define Intext_magic_number 0x8495A6BE
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/* Codes for the compact format */
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#define PREFIX_SMALL_BLOCK 0x80
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#define PREFIX_SMALL_INT 0x40
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#define PREFIX_SMALL_STRING 0x20
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#define CODE_INT8 0x0
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#define CODE_INT16 0x1
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#define CODE_INT32 0x2
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#define CODE_INT64 0x3
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#define CODE_SHARED8 0x4
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#define CODE_SHARED16 0x5
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#define CODE_SHARED32 0x6
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#define CODE_BLOCK32 0x8
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#define CODE_BLOCK64 0x13
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#define CODE_STRING8 0x9
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#define CODE_STRING32 0xA
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#define CODE_DOUBLE_BIG 0xB
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#define CODE_DOUBLE_LITTLE 0xC
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#define CODE_DOUBLE_ARRAY8_BIG 0xD
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#define CODE_DOUBLE_ARRAY8_LITTLE 0xE
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#define CODE_DOUBLE_ARRAY32_BIG 0xF
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#define CODE_DOUBLE_ARRAY32_LITTLE 0x7
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#define CODE_CODEPOINTER 0x10
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#define CODE_INFIXPOINTER 0x11
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#define CODE_CUSTOM 0x12
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#if ARCH_FLOAT_ENDIANNESS == 0x76543210
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#define CODE_DOUBLE_NATIVE CODE_DOUBLE_BIG
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#define CODE_DOUBLE_ARRAY8_NATIVE CODE_DOUBLE_ARRAY8_BIG
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#define CODE_DOUBLE_ARRAY32_NATIVE CODE_DOUBLE_ARRAY32_BIG
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#else
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#define CODE_DOUBLE_NATIVE CODE_DOUBLE_LITTLE
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#define CODE_DOUBLE_ARRAY8_NATIVE CODE_DOUBLE_ARRAY8_LITTLE
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#define CODE_DOUBLE_ARRAY32_NATIVE CODE_DOUBLE_ARRAY32_LITTLE
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#endif
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/* Size-ing data structures for extern. Chosen so that
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sizeof(struct trail_block) and sizeof(struct output_block)
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are slightly below 8Kb. */
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#define ENTRIES_PER_TRAIL_BLOCK 1025
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#define SIZE_EXTERN_OUTPUT_BLOCK 8100
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/* The entry points */
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void caml_output_val (struct channel * chan, value v, value flags);
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/* Output [v] with flags [flags] on the channel [chan]. */
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/* </private> */
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CAMLextern void caml_output_value_to_malloc(value v, value flags,
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/*out*/ char ** buf,
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/*out*/ intnat * len);
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/* Output [v] with flags [flags] to a memory buffer allocated with
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malloc. On return, [*buf] points to the buffer and [*len]
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contains the number of bytes in buffer. */
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CAMLextern intnat caml_output_value_to_block(value v, value flags,
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char * data, intnat len);
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/* Output [v] with flags [flags] to a user-provided memory buffer.
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[data] points to the start of this buffer, and [len] is its size
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in bytes. Return the number of bytes actually written in buffer.
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Raise [Failure] if buffer is too short. */
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/* <private> */
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value caml_input_val (struct channel * chan);
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/* Read a structured value from the channel [chan]. */
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/* </private> */
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CAMLextern value caml_input_val_from_string (value str, intnat ofs);
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/* Read a structured value from the Caml string [str], starting
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at offset [ofs]. */
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CAMLextern value caml_input_value_from_malloc(char * data, intnat ofs);
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/* Read a structured value from a malloced buffer. [data] points
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to the beginning of the buffer, and [ofs] is the offset of the
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beginning of the externed data in this buffer. The buffer is
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deallocated with [free] on return, or if an exception is raised. */
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CAMLextern value caml_input_value_from_block(char * data, intnat len);
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/* Read a structured value from a user-provided buffer. [data] points
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to the beginning of the externed data in this buffer,
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and [len] is the length in bytes of valid data in this buffer.
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The buffer is never deallocated by this routine. */
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/* Functions for writing user-defined marshallers */
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CAMLextern void caml_serialize_int_1(int i);
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CAMLextern void caml_serialize_int_2(int i);
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CAMLextern void caml_serialize_int_4(int32 i);
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CAMLextern void caml_serialize_int_8(int64 i);
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CAMLextern void caml_serialize_float_4(float f);
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CAMLextern void caml_serialize_float_8(double f);
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CAMLextern void caml_serialize_block_1(void * data, intnat len);
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CAMLextern void caml_serialize_block_2(void * data, intnat len);
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CAMLextern void caml_serialize_block_4(void * data, intnat len);
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CAMLextern void caml_serialize_block_8(void * data, intnat len);
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CAMLextern void caml_serialize_block_float_8(void * data, intnat len);
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CAMLextern int caml_deserialize_uint_1(void);
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CAMLextern int caml_deserialize_sint_1(void);
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CAMLextern int caml_deserialize_uint_2(void);
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CAMLextern int caml_deserialize_sint_2(void);
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CAMLextern uint32 caml_deserialize_uint_4(void);
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CAMLextern int32 caml_deserialize_sint_4(void);
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CAMLextern uint64 caml_deserialize_uint_8(void);
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CAMLextern int64 caml_deserialize_sint_8(void);
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CAMLextern float caml_deserialize_float_4(void);
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CAMLextern double caml_deserialize_float_8(void);
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CAMLextern void caml_deserialize_block_1(void * data, intnat len);
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CAMLextern void caml_deserialize_block_2(void * data, intnat len);
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CAMLextern void caml_deserialize_block_4(void * data, intnat len);
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CAMLextern void caml_deserialize_block_8(void * data, intnat len);
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CAMLextern void caml_deserialize_block_float_8(void * data, intnat len);
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CAMLextern void caml_deserialize_error(char * msg);
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/* <private> */
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/* Auxiliary stuff for sending code pointers */
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unsigned char * caml_code_checksum (void);
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#ifndef NATIVE_CODE
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#include "fix_code.h"
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#define caml_code_area_start ((char *) caml_start_code)
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#define caml_code_area_end ((char *) caml_start_code + caml_code_size)
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#else
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extern char * caml_code_area_start, * caml_code_area_end;
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#endif
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/* </private> */
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#endif /* CAML_INTEXT_H */
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