- std::string const solver = _config->Find("APT::Solver::Name", "internal");
-
- if (solver != "internal")
- {
- std::vector<std::string> const solverDirs = _config->FindVector("Dir::Bin::Solvers");
- std::string file;
- for (std::vector<std::string>::const_iterator dir = solverDirs.begin();
- dir != solverDirs.end(); ++dir) {
- file = flCombine(*dir, solver);
- if (RealFileExists(file.c_str()) == true)
- break;
- file.clear();
- }
-
- if (file.empty() == true)
- return _error->Error("Can't call external solver '%s' as it is not in a configured directory!", solver.c_str());
- int external[4] = {-1, -1, -1, -1};
- if (pipe(external) != 0 || pipe(external + 2) != 0)
- return _error->Errno("Resolve", "Can't create needed IPC pipes for EDSP");
- for (int i = 0; i < 4; ++i)
- SetCloseExec(external[i], true);
-
- pid_t Solver = ExecFork();
- if (Solver == 0)
- {
- dup2(external[0], STDIN_FILENO);
- dup2(external[3], STDOUT_FILENO);
- const char* calling[2] = { file.c_str(), 0 };
- execv(calling[0], (char**) calling);
- std::cerr << "Failed to execute solver '" << solver << "'!" << std::endl;
- _exit(100);
- }
- close(external[0]);
- close(external[3]);
-
- if (WaitFd(external[1], true, 5) == false)
- return _error->Errno("Resolve", "Waiting on availability of solver stdin timed out");
-
- FILE* output = fdopen(external[1], "w");
- if (output == NULL)
- return _error->Errno("Resolve", "fdopen on solver stdin failed");
- EDSP::WriteRequest(Cache, output);
- EDSP::WriteScenario(Cache, output);
- fclose(output);
-
- if (EDSP::ReadResponse(external[2], Cache) == false)
- return _error->Error("Reading solver response failed");
-
- return ExecWait(Solver, solver.c_str(), false);
+ std::string const solver = _config->Find("APT::Solver", "internal");
+ if (solver != "internal") {
+ OpTextProgress Prog(*_config);
+ return EDSP::ResolveExternal(solver.c_str(), Cache, false, false, false, &Prog);