void
terminate ()
{
- static bool tried_throw = false;
-
try {
+ static bool tried_throw = false;
// try once to re-throw currently active exception
if (!tried_throw) {
tried_throw = true;
#endif
}
-/** @param job Optional job for which to report progress */
+/** Compute a digest of the first and last `size' bytes of a set of files. */
string
-md5_digest (vector<boost::filesystem::path> files, shared_ptr<Job> job)
+md5_digest_head_tail (vector<boost::filesystem::path> files, boost::uintmax_t size)
{
- boost::uintmax_t const buffer_size = 64 * 1024;
- char buffer[buffer_size];
-
+ boost::scoped_array<char> buffer (new char[size]);
MD5Digester digester;
- vector<int64_t> sizes;
- for (size_t i = 0; i < files.size(); ++i) {
- sizes.push_back (boost::filesystem::file_size (files[i]));
- }
-
- for (size_t i = 0; i < files.size(); ++i) {
+ /* Head */
+ boost::uintmax_t to_do = size;
+ char* p = buffer.get ();
+ int i = 0;
+ while (i < int64_t (files.size()) && to_do > 0) {
FILE* f = fopen_boost (files[i], "rb");
if (!f) {
throw OpenFileError (files[i].string());
}
- boost::uintmax_t const bytes = boost::filesystem::file_size (files[i]);
- boost::uintmax_t remaining = bytes;
-
- while (remaining > 0) {
- int const t = min (remaining, buffer_size);
- int const r = fread (buffer, 1, t, f);
- if (r != t) {
- throw ReadFileError (files[i], errno);
- }
- digester.add (buffer, t);
- remaining -= t;
-
- if (job) {
- job->set_progress ((float (i) + 1 - float(remaining) / bytes) / files.size ());
- }
+ boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
+ fread (p, 1, this_time, f);
+ p += this_time;
+ to_do -= this_time;
+ fclose (f);
+
+ ++i;
+ }
+ digester.add (buffer.get(), size - to_do);
+
+ /* Tail */
+ to_do = size;
+ p = buffer.get ();
+ i = files.size() - 1;
+ while (i >= 0 && to_do > 0) {
+ FILE* f = fopen_boost (files[i], "rb");
+ if (!f) {
+ throw OpenFileError (files[i].string());
}
+ boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
+ fseek (f, -this_time, SEEK_END);
+ fread (p, 1, this_time, f);
+ p += this_time;
+ to_do -= this_time;
fclose (f);
- }
+
+ --i;
+ }
+ digester.add (buffer.get(), size - to_do);
return digester.get ();
}
return 96000;
}
-Socket::Socket (int timeout)
- : _deadline (_io_service)
- , _socket (_io_service)
- , _acceptor (0)
- , _timeout (timeout)
-{
- _deadline.expires_at (boost::posix_time::pos_infin);
- check ();
-}
-
-Socket::~Socket ()
-{
- delete _acceptor;
-}
-
-void
-Socket::check ()
-{
- if (_deadline.expires_at() <= boost::asio::deadline_timer::traits_type::now ()) {
- if (_acceptor) {
- _acceptor->cancel ();
- } else {
- _socket.close ();
- }
- _deadline.expires_at (boost::posix_time::pos_infin);
- }
-
- _deadline.async_wait (boost::bind (&Socket::check, this));
-}
-
-/** Blocking connect.
- * @param endpoint End-point to connect to.
- */
-void
-Socket::connect (boost::asio::ip::tcp::endpoint endpoint)
-{
- _deadline.expires_from_now (boost::posix_time::seconds (_timeout));
- boost::system::error_code ec = boost::asio::error::would_block;
- _socket.async_connect (endpoint, boost::lambda::var(ec) = boost::lambda::_1);
- do {
- _io_service.run_one();
- } while (ec == boost::asio::error::would_block);
-
- if (ec) {
- throw NetworkError (String::compose (_("error during async_connect (%1)"), ec.value ()));
- }
-
- if (!_socket.is_open ()) {
- throw NetworkError (_("connect timed out"));
- }
-}
-
-void
-Socket::accept (int port)
-{
- _acceptor = new boost::asio::ip::tcp::acceptor (_io_service, boost::asio::ip::tcp::endpoint (boost::asio::ip::tcp::v4(), port));
-
- _deadline.expires_from_now (boost::posix_time::seconds (_timeout));
- boost::system::error_code ec = boost::asio::error::would_block;
- _acceptor->async_accept (_socket, boost::lambda::var(ec) = boost::lambda::_1);
- do {
- _io_service.run_one ();
- } while (ec == boost::asio::error::would_block);
-
- delete _acceptor;
- _acceptor = 0;
-
- if (ec) {
- throw NetworkError (String::compose (_("error during async_accept (%1)"), ec.value ()));
- }
-}
-
-/** Blocking write.
- * @param data Buffer to write.
- * @param size Number of bytes to write.
- */
-void
-Socket::write (uint8_t const * data, int size)
-{
- _deadline.expires_from_now (boost::posix_time::seconds (_timeout));
- boost::system::error_code ec = boost::asio::error::would_block;
-
- boost::asio::async_write (_socket, boost::asio::buffer (data, size), boost::lambda::var(ec) = boost::lambda::_1);
-
- do {
- _io_service.run_one ();
- } while (ec == boost::asio::error::would_block);
-
- if (ec) {
- throw NetworkError (String::compose (_("error during async_write (%1)"), ec.value ()));
- }
-}
-
-void
-Socket::write (uint32_t v)
-{
- v = htonl (v);
- write (reinterpret_cast<uint8_t*> (&v), 4);
-}
-
-/** Blocking read.
- * @param data Buffer to read to.
- * @param size Number of bytes to read.
- */
-void
-Socket::read (uint8_t* data, int size)
-{
- _deadline.expires_from_now (boost::posix_time::seconds (_timeout));
- boost::system::error_code ec = boost::asio::error::would_block;
-
- boost::asio::async_read (_socket, boost::asio::buffer (data, size), boost::lambda::var(ec) = boost::lambda::_1);
-
- do {
- _io_service.run_one ();
- } while (ec == boost::asio::error::would_block);
-
- if (ec) {
- throw NetworkError (String::compose (_("error during async_read (%1)"), ec.value ()));
- }
-}
-
-uint32_t
-Socket::read_uint32 ()
-{
- uint32_t v;
- read (reinterpret_cast<uint8_t *> (&v), 4);
- return ntohl (v);
-}
-
/** Round a number up to the nearest multiple of another number.
* @param c Index.
* @param s Array of numbers to round, indexed by c.
projects / dcpomatic.git / blobdiff