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// Description /*{{{*/
// $Id: progress.cc,v 1.5 2003/06/03 03:03:23 mdz Exp $
/* ######################################################################
Progress - Wrapper for the progress related functions
##################################################################### */
#include <iostream>
#include <sys/types.h>
#include <sys/wait.h>
#include "progress.h"
// generic
bool PyCallbackObj::RunSimpleCallback(const char* method_name,
PyObject *arglist)
{
if(callbackInst == 0)
return false;
PyObject *method = PyObject_GetAttrString(callbackInst,(char*) method_name);
if(method == NULL) {
// FIXME: make this silent
std::cerr << "Can't find '" << method_name << "' method" << std::endl;
Py_XDECREF(arglist);
return false;
}
PyObject *result = PyEval_CallObject(method, arglist);
Py_XDECREF(arglist);
if(result == NULL) {
// exception happend
std::cerr << "Error in function " << method_name << std::endl;
PyErr_Print();
return NULL;
}
Py_XDECREF(result);
Py_XDECREF(method);
return true;
}
// OpProgress interface
// FIXME: add "string Op, string SubOp" as attribute to the callbackInst
void PyOpProgress::Update()
{
// Build up the argument list...
PyObject *arglist = Py_BuildValue("(f)", Percent);
RunSimpleCallback("Update", arglist);
};
void PyOpProgress::Done()
{
RunSimpleCallback("Done");
}
// fetcher interface
enum {
DLDone, DLQueued, DLFailed, DLHit
};
// apt interface
bool PyFetchProgress::MediaChange(string Media, string Drive)
{
//std::cout << "MediaChange" << std::endl;
PyObject *arglist = Py_BuildValue("(ss)", Media.c_str(), Drive.c_str());
RunSimpleCallback("MediaChange", arglist);
// FIXME: need to return depending on the python result
return true;
}
void PyFetchProgress::UpdateStatus(pkgAcquire::ItemDesc &Itm, int status)
{
//std::cout << "UpdateStatus: " << Itm.URI << " " << status << std::endl;
PyObject *arglist = Py_BuildValue("(sssi)", Itm.URI.c_str(), Itm.Description.c_str(), Itm.ShortDesc.c_str(), status);
RunSimpleCallback("UpdateStatus", arglist);
}
void PyFetchProgress::IMSHit(pkgAcquire::ItemDesc &Itm)
{
UpdateStatus(Itm, DLHit);
}
void PyFetchProgress::Fetch(pkgAcquire::ItemDesc &Itm)
{
UpdateStatus(Itm, DLQueued);
}
void PyFetchProgress::Done(pkgAcquire::ItemDesc &Itm)
{
UpdateStatus(Itm, DLDone);
}
void PyFetchProgress::Fail(pkgAcquire::ItemDesc &Itm)
{
UpdateStatus(Itm, DLFailed);
}
void PyFetchProgress::Start()
{
//std::cout << "Start" << std::endl;
pkgAcquireStatus::Start();
RunSimpleCallback("Start");
}
void PyFetchProgress::Stop()
{
//std::cout << "Stop" << std::endl;
pkgAcquireStatus::Stop();
RunSimpleCallback("Stop");
}
// FIXME: it should just set the attribute for
// CurrentCPS, Current...
bool PyFetchProgress::Pulse(pkgAcquire * Owner)
{
pkgAcquireStatus::Pulse(Owner);
//std::cout << "Pulse" << std::endl;
if(callbackInst == 0)
return false;
// set stats
PyObject *o;
o = Py_BuildValue("f", CurrentCPS);
PyObject_SetAttrString(callbackInst, "CurrentCPS", o);
o = Py_BuildValue("f", CurrentBytes);
PyObject_SetAttrString(callbackInst, "CurrentBytes", o);
o = Py_BuildValue("i", CurrentItems);
PyObject_SetAttrString(callbackInst, "CurrentItems", o);
o = Py_BuildValue("i", TotalItems);
PyObject_SetAttrString(callbackInst, "TotalItems", o);
o = Py_BuildValue("f", TotalBytes);
PyObject_SetAttrString(callbackInst, "TotalBytes", o);
RunSimpleCallback("Pulse");
// this can be canceld by returning false
return true;
}
// install progress
void PyInstallProgress::StartUpdate()
{
RunSimpleCallback("StartUpdate");
}
void PyInstallProgress::UpdateInterface()
{
RunSimpleCallback("UpdateInterface");
}
void PyInstallProgress::FinishUpdate()
{
RunSimpleCallback("FinishUpdate");
}
pkgPackageManager::OrderResult PyInstallProgress::Run(pkgPackageManager *pm)
{
void *dummy;
pkgPackageManager::OrderResult res;
int ret;
pid_t child_id;
#if 0 // FIXME: this needs to be merged into apt to support medium swaping
res = pm->DoInstallPreFork();
if (res == pkgPackageManager::Failed)
return res;
#endif
// support custom fork methods
if(PyObject_HasAttrString(callbackInst, "fork")) {
PyObject *method = PyObject_GetAttrString(callbackInst, "fork");
//std::cerr << "custom fork found" << std::endl;
PyObject *arglist = Py_BuildValue("()");
PyObject *result = PyEval_CallObject(method, arglist);
Py_DECREF(arglist);
if (result == NULL) {
std::cerr << "fork method invalid" << std::endl;
PyErr_Print();
return pkgPackageManager::Failed;
}
if(!PyArg_Parse(result, "i", &child_id) )
std::cerr << "result could not be parsed?"<< std::endl;
//std::cerr << "got: " << child_id << std::endl;
} else {
//std::cerr << "using build-in fork()" << std::endl;
child_id = fork();
}
#if 0 // FIXME: this needs to be merged into apt to support medium swaping
if (child_id == 0) {
res = pm->DoInstallPostFork();
_exit(res);
}
#endif
if (child_id == 0) {
res = pm->DoInstall();
_exit(res);
}
StartUpdate();
while (waitpid(child_id, &ret, WNOHANG) == 0)
UpdateInterface();
res = (pkgPackageManager::OrderResult) WEXITSTATUS(ret);
FinishUpdate();
return res;
}
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