ByteArray.h

   1 /* (C) 2011 - 2012 rofl0r.
   2 Permission for use by AGS is hereby granted. */
   3
   4 #ifndef BYTEARRAY_H
   5 #define BYTEARRAY_H
   6
   7 #ifdef __cplusplus
   8 extern "C" {
   9 #endif
  10
  11 #include <unistd.h>
  12 #include <sys/stat.h>
  13 #include <fcntl.h>
  14 #include <string.h>
  15 #include <stdio.h>
  16 #include "MemGrow.h"
  17
  18 enum ByteArray_Endianess {
  19         BAE_BIG,
  20         BAE_LITTLE,
  21 };
  22
  23 enum ByteArray_Type {
  24         BAT_MEMSTREAM,
  25         BAT_FILESTREAM,
  26 };
  27
  28 enum ByteArray_Flags {
  29         BAF_CANGROW = 1,
  30
  31 };
  32
  33 struct ByteArray {
  34         int type;
  35         int flags;
  36         enum ByteArray_Endianess endian;
  37         enum ByteArray_Endianess sys_endian;
  38         off_t pos;
  39         off_t size;
  40         struct {
  41                 MG mem;
  42                 int fd;
  43         } source;
  44         ssize_t (*readMultiByte)(struct ByteArray*, char*, size_t);
  45         unsigned int (*readUnsignedInt)(struct ByteArray*);
  46         signed int (*readInt)(struct ByteArray*);
  47         unsigned short (*readUnsignedShort)(struct ByteArray*);
  48         signed short (*readShort)(struct ByteArray*);
  49         unsigned char (*readUnsignedByte)(struct ByteArray*);
  50         signed char (*readByte)(struct ByteArray*);
  51         off_t (*readBytes) (struct ByteArray* self, struct ByteArray *dest, off_t start, off_t len);
  52         off_t (*bytesAvailable)(struct ByteArray*);
  53         off_t (*writeByte) (struct ByteArray* self, signed char what);
  54         off_t (*writeUnsignedByte) (struct ByteArray* self, unsigned char what);
  55         off_t (*writeShort) (struct ByteArray* self, signed short what);
  56         off_t (*writeUnsignedShort) (struct ByteArray* self, unsigned short what);
  57         off_t (*writeInt) (struct ByteArray* self, signed int what);
  58         off_t (*writeUnsignedInt) (struct ByteArray* self, unsigned int what);
  59         off_t (*writeMem) (struct ByteArray* self, unsigned char* what, size_t len);
  60         off_t (*writeUTFBytes) (struct ByteArray* self, char* what);
  61         off_t (*writeBytes) (struct ByteArray* self, struct ByteArray* what);
  62         off_t (*writeFloat) (struct ByteArray* self, float what);
  63         int (*set_position_rel) (struct ByteArray* self, int rel);
  64         int (*set_position) (struct ByteArray* self, off_t pos);
  65         off_t (*get_position) (struct ByteArray* self);
  66 };
  67
  68 void ByteArray_defaults(struct ByteArray* self);
  69 void ByteArray_ctor(struct ByteArray* self);
  70 struct ByteArray* ByteArray_new(void);
  71
  72 void ByteArray_set_endian(struct ByteArray* self, enum ByteArray_Endianess endian);
  73 void ByteArray_set_flags(struct ByteArray *self, int flags);
  74 enum ByteArray_Endianess ByteArray_get_endian(struct ByteArray* self);
  75
  76 int ByteArray_open_file(struct ByteArray* self, char* filename);
  77 void ByteArray_close_file(struct ByteArray *self);
  78 int ByteArray_open_mem(struct ByteArray* self, char* data, size_t size);
  79 void ByteArray_clear(struct ByteArray* self);
  80 void ByteArray_close(struct ByteArray* self);
  81
  82 void ByteArray_set_length(struct ByteArray* self, off_t len);
  83 off_t ByteArray_get_length(struct ByteArray* self);
  84
  85 off_t ByteArray_get_position(struct ByteArray* self);
  86 int ByteArray_set_position(struct ByteArray* self, off_t pos);
  87 int ByteArray_set_position_rel(struct ByteArray* self, int rel);
  88 off_t ByteArray_bytesAvailable(struct ByteArray* self);
  89
  90 ssize_t ByteArray_readMultiByte(struct ByteArray* self, char* buffer, size_t len);
  91 unsigned int ByteArray_readUnsignedInt(struct ByteArray* self);
  92 int ByteArray_readInt(struct ByteArray* self);
  93 unsigned short ByteArray_readUnsignedShort(struct ByteArray* self);
  94 short ByteArray_readShort(struct ByteArray* self);
  95 unsigned char ByteArray_readUnsignedByte(struct ByteArray* self);
  96 signed char ByteArray_readByte(struct ByteArray* self);
  97 off_t ByteArray_readBytes(struct ByteArray* self, struct ByteArray *dest, off_t start, off_t len);
  98
  99 off_t ByteArray_writeByte(struct ByteArray* self, signed char what);
 100 off_t ByteArray_writeUnsignedByte(struct ByteArray* self, unsigned char what);
 101 off_t ByteArray_writeShort(struct ByteArray* self, signed short what);
 102 off_t ByteArray_writeUnsignedShort(struct ByteArray* self, unsigned short what);
 103 off_t ByteArray_writeInt(struct ByteArray* self, signed int what);
 104 off_t ByteArray_writeUnsignedInt(struct ByteArray* self, unsigned int what);
 105 off_t ByteArray_writeFloat(struct ByteArray* self, float what);
 106 off_t ByteArray_writeMem(struct ByteArray* self, unsigned char* what, size_t len);
 107 off_t ByteArray_writeUTFBytes(struct ByteArray* self, char* what);
 108 off_t ByteArray_writeBytes(struct ByteArray* self, struct ByteArray* what);
 109
 110 unsigned char ByteArray_getUnsignedByte(struct ByteArray* self, off_t index);
 111 void ByteArray_setUnsignedByte(struct ByteArray* self, off_t index, unsigned char what);
 112
 113 void ByteArray_dump_to_stream(struct ByteArray* self, FILE *out);
 114 void ByteArray_dump_to_file(struct ByteArray* self, char* filename);
 115
 116 #ifdef __cplusplus
 117 }
 118 #endif
 119
 120 #pragma RcB2 DEP "ByteArray.c"
 121
 122 #endif