1 #include <msp/datafile/parser.h>
2 #include <msp/datafile/statement.h>
3 #include <msp/datafile/writer.h>
4 #include <msp/fs/utils.h>
5 #include <msp/io/memory.h>
6 #include <msp/strings/format.h>
13 Packer::Packer(DataTool &t):
16 tmp_buf(new IO::Buffered(*tmp_file)),
20 IO::File *Packer::tempfile()
22 for(unsigned i=0;; ++i)
26 std::string filename = format("/tmp/mspdatatool.%d", i);
27 /*filename.reserve(25);
28 filename.append("/tmp/mspdatatool.");
29 for(unsigned i=0; i<8; ++i)
30 filename.append(rand());*/
31 IO::File *file = new IO::File(filename, IO::M_RDWR, IO::File::C_NEW);
35 catch(const IO::file_already_exists &)
48 void Packer::pack_file(const string &fn)
51 throw logic_error("Packer::pack_file");
53 IO::SeekOffset offset = tmp_file->tell();
55 IO::BufferedFile in(fn);
57 bool raw = detect_raw(in);
59 transfer_raw(in, *tmp_file);
62 transfer_datafile(in, fn, *tmp_buf, objects);
66 unsigned length = tmp_file->tell()-offset;
68 DataFile::Statement st("file");
69 st.append(FS::basename(fn));
70 st.sub.push_back((DataFile::Statement("slice"), offset, length));
71 for(list<Object>::const_iterator i=objects.begin(); i!=objects.end(); ++i)
72 st.sub.push_back((DataFile::Statement("object"), i->name, i->keyword));
73 directory.push_back(st);
74 dir_alloc += 100+objects.size()*100;
77 bool Packer::detect_raw(IO::Seekable &in)
79 IO::SeekOffset offset = in.tell();
81 DataFile::Parser parser(in, "-");
82 while(!raw && parser && in.tell()<10240)
93 in.seek(offset, IO::S_BEG);
97 void Packer::transfer_datafile(IO::Base &in, const string &fn, IO::Base &out, ObjectList &objects)
99 DataFile::Parser parser(in, fn);
101 DataFile::Writer *writer = tool.create_writer(out);
103 bool collection = FS::extpart(fn)==".mdc";
106 DataFile::Statement st = parser.parse(true);
109 if(collection && !st.control)
111 if(st.get_signature()=="s")
114 obj.name = st.args[0].get<string>();
115 obj.keyword = st.keyword;
116 objects.push_back(obj);
121 if(!st.control || st.keyword=="__src")
125 writer->write(DataFile::Statement("__end"));
129 void Packer::transfer_raw(IO::Base &in, IO::Base &out)
134 unsigned len = in.read(buf, sizeof(buf));
141 void Packer::create_pack(const string &fn)
143 vector<char> dir_buffer(dir_alloc);
144 IO::Memory mem(&dir_buffer[0], dir_buffer.size(), IO::M_WRITE);
146 unsigned base_offset = 0;
149 mem.seek(0, IO::S_BEG);
151 DataFile::Writer *writer = tool.create_writer(mem);
153 for(list<DataFile::Statement>::const_iterator i=directory.begin(); i!=directory.end(); ++i)
156 base_offset = mem.tell();
157 writer->write((DataFile::Statement("base_offset"), base_offset));
158 writer->write(DataFile::Statement("__end"));
161 unsigned dir_size = mem.tell();
162 if(dir_size<=base_offset)
164 base_offset = dir_size;
167 IO::File out(fn, IO::M_WRITE);
168 out.write(&dir_buffer[0], base_offset);
169 tmp_file->seek(0, IO::S_BEG);
170 while(!tmp_file->eof())
173 unsigned len = tmp_file->read(buf, sizeof(buf));