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()
23 const char *tmp_env = getenv("TMPDIR");
29 for(unsigned i=0;; ++i)
33 FS::Path filename = tmpdir/format("mspdatatool.%d", i);
34 IO::File *file = new IO::File(filename.str(), IO::M_RDWR, IO::File::C_NEW);
35 FS::unlink(filename.str());
38 catch(const IO::file_already_exists &)
51 void Packer::pack_file(const string &fn)
54 throw logic_error("Packer::pack_file");
56 IO::SeekOffset offset = tmp_file->tell();
58 IO::BufferedFile in(fn);
60 bool raw = detect_raw(in);
62 transfer_raw(in, *tmp_file);
65 transfer_datafile(in, fn, *tmp_buf, objects);
69 unsigned length = tmp_file->tell()-offset;
71 DataFile::Statement st("file");
72 st.append(FS::basename(fn));
73 st.sub.push_back((DataFile::Statement("slice"), offset, length));
74 for(list<Object>::const_iterator i=objects.begin(); i!=objects.end(); ++i)
75 st.sub.push_back((DataFile::Statement("object"), i->name, i->keyword));
76 directory.push_back(st);
77 dir_alloc += 100+objects.size()*100;
80 bool Packer::detect_raw(IO::Seekable &in)
82 IO::SeekOffset offset = in.tell();
84 DataFile::Parser parser(in, "-");
85 while(!raw && parser && in.tell()<10240)
96 in.seek(offset, IO::S_BEG);
100 void Packer::transfer_datafile(IO::Base &in, const string &fn, IO::Base &out, ObjectList &objects)
102 DataFile::Parser parser(in, fn);
104 DataFile::Writer *writer = tool.create_writer(out);
106 bool collection = FS::extpart(fn)==".mdc";
109 DataFile::Statement st = parser.parse(true);
112 if(collection && !st.control)
114 if(st.get_signature()=="s")
117 obj.name = st.args[0].get<string>();
118 obj.keyword = st.keyword;
119 objects.push_back(obj);
124 if(!st.control || st.keyword=="__src")
128 writer->write(DataFile::Statement("__end"));
132 void Packer::transfer_raw(IO::Base &in, IO::Base &out)
137 unsigned len = in.read(buf, sizeof(buf));
144 void Packer::create_pack(const string &fn)
146 vector<char> dir_buffer(dir_alloc);
147 IO::Memory mem(&dir_buffer[0], dir_buffer.size(), IO::M_WRITE);
149 unsigned base_offset = 0;
152 mem.seek(0, IO::S_BEG);
154 DataFile::Writer *writer = tool.create_writer(mem);
156 for(list<DataFile::Statement>::const_iterator i=directory.begin(); i!=directory.end(); ++i)
159 base_offset = mem.tell();
160 writer->write((DataFile::Statement("base_offset"), base_offset));
161 writer->write(DataFile::Statement("__end"));
164 unsigned dir_size = mem.tell();
165 if(dir_size<=base_offset)
167 base_offset = dir_size;
170 IO::File out(fn, IO::M_WRITE);
171 out.write(&dir_buffer[0], base_offset);
172 tmp_file->seek(0, IO::S_BEG);
173 unsigned bufsize = 1048576;
174 char *buf = new char[bufsize];
175 while(!tmp_file->eof())
177 unsigned len = tmp_file->read(buf, bufsize);