utils.binary.funcs source code

1 module utils.binary.funcs;
2 
3 import
4 		std.mmfile,
5 
6 		utils.except,
7 		utils.binary;
8 
9 // ----------------------------------------- READ FUNCTIONS -----------------------------------------
10 
11 auto binaryRead(T)(in void[] data, bool canRest = false, string f = __FILE__, uint l = __LINE__)
12 {
13 	auto r = data.BinaryReader!MemoryReader;
14 	auto v = r.read!T(f, l);
15 
16 	!r.reader.length || canRest || throwError!`not all the buffer was parsed, %s bytes rest`(f, l, r.reader.length);
17 	return v;
18 }
19 
20 auto binaryReadFile(T)(string name, string f = __FILE__, uint l = __LINE__)
21 {
22 	auto m = new MmFile(name);
23 
24 	try
25 	{
26 		return m[].binaryRead!T(false, f, l);
27 	}
28 	finally
29 	{
30 		m.destroy;
31 	}
32 }
33 
34 // ----------------------------------------- WRITE FUNCTIONS -----------------------------------------
35 
36 const(void)[] binaryWrite(T)(auto ref in T data, string f = __FILE__, uint l = __LINE__)
37 {
38 	return BinaryReader!AppendWriter().write(data, f, l).reader.data;
39 }
40 
41 void binaryWrite(T)(void[] buf, auto ref in T data, bool canRest = false, string f = __FILE__, uint l = __LINE__)
42 {
43 	auto r = buf.BinaryReader!MemoryReader;
44 	r.write(data, f, l);
45 
46 	!r.reader.length || canRest || throwError!`not all the buffer was used, %u bytes rest`(f, l, r.reader.length);
47 }
48 
49 void binaryWriteFile(T)(string name, auto ref in T data, string f = __FILE__, uint l = __LINE__)
50 {
51 	auto len = binaryWriteLen(data, f, l);
52 	auto m = new MmFile(name, MmFile.Mode.readWriteNew, len, null);
53 
54 	try
55 	{
56 		binaryWrite(m[], data, false, f, l);
57 	}
58 	finally
59 	{
60 		m.destroy;
61 	}
62 }
63 
64 // ----------------------------------------- OTHER FUNCTIONS -----------------------------------------
65 
66 auto binaryWriteLen(T)(auto ref in T data, string f = __FILE__, uint l = __LINE__)
67 {
68 	struct LengthCalc
69 	{
70 		bool write(in ubyte[] v)
71 		{
72 			length += v.length;
73 			return true;
74 		}
75 
76 		bool wskip(uint cnt)
77 		{
78 			length += cnt;
79 			return true;
80 		}
81 
82 		uint length;
83 	}
84 
85 	return BinaryReader!LengthCalc().write(data, f, l).reader.length;
86 }