child, it fixes up the important signals and nukes all of the fds,
otherwise acts like normal fork. */
pid_t ExecFork()
+{
+ set<int> KeepFDs;
+
+ Configuration::Item const *Opts = _config->Tree("APT::Keep-Fds");
+ if (Opts != 0 && Opts->Child != 0)
+ {
+ Opts = Opts->Child;
+ for (; Opts != 0; Opts = Opts->Next)
+ {
+ if (Opts->Value.empty() == true)
+ continue;
+ int fd = atoi(Opts->Value.c_str());
+ KeepFDs.insert(fd);
+ }
+ }
+ return ExecFork(KeepFDs);
+}
+
+pid_t ExecFork(std::set<int> KeepFDs)
{
// Fork off the process
pid_t Process = fork();
signal(SIGCONT,SIG_DFL);
signal(SIGTSTP,SIG_DFL);
- set<int> KeepFDs;
- Configuration::Item const *Opts = _config->Tree("APT::Keep-Fds");
- if (Opts != 0 && Opts->Child != 0)
- {
- Opts = Opts->Child;
- for (; Opts != 0; Opts = Opts->Next)
- {
- if (Opts->Value.empty() == true)
- continue;
- int fd = atoi(Opts->Value.c_str());
- KeepFDs.insert(fd);
- }
- }
-
// Close all of our FDs - just in case
for (int K = 3; K != 40; K++)
{
#include <string>
#include <vector>
+#include <set>
#include <zlib.h>
void SetNonBlock(int Fd,bool Block);
bool WaitFd(int Fd,bool write = false,unsigned long timeout = 0);
pid_t ExecFork();
+pid_t ExecFork(std::set<int> keep_fds);
bool ExecWait(pid_t Pid,const char *Name,bool Reap = false);
// File string manipulators
unsigned int InfoFD = _config->FindI(OptSec + "::InfoFD", STDIN_FILENO);
// Create the pipes
+ std::set<int> KeepFDs;
int Pipes[2];
if (pipe(Pipes) != 0)
return _error->Errno("pipe","Failed to create IPC pipe to subprocess");
if (InfoFD != (unsigned)Pipes[0])
SetCloseExec(Pipes[0],true);
else
- _config->Set("APT::Keep-Fds::", Pipes[0]);
+ KeepFDs.insert(Pipes[0]);
+
+
SetCloseExec(Pipes[1],true);
// Purified Fork for running the script
- pid_t Process = ExecFork();
+ pid_t Process = ExecFork(KeepFDs);
if (Process == 0)
{
// Setup the FDs
execv(Args[0],(char **)Args);
_exit(100);
}
- if (InfoFD == (unsigned)Pipes[0])
- _config->Clear("APT::Keep-Fds", Pipes[0]);
close(Pipes[0]);
FILE *F = fdopen(Pipes[1],"w");
if (F == 0)
// ignore SIGHUP as well (debian #463030)
sighandler_t old_SIGHUP = signal(SIGHUP,SIG_IGN);
- pid_t Child = ExecFork();
- // This is the child
+ // now run dpkg
+ d->progress->StartDpkg();
+ std::set<int> KeepFDs;
+ KeepFDs.insert(fd[1]);
+ pid_t Child = ExecFork(KeepFDs);
if (Child == 0)
{
-
+ // This is the child
if(d->slave >= 0 && d->master >= 0)
{
setsid();
if (_config->FindB("DPkg::UseIoNice", false) == true)
ionice(Child);
- // clear the Keep-Fd again
- _config->Clear("APT::Keep-Fds",fd[1]);
-
// Wait for dpkg
int Status = 0;
FD_SET(_dpkgin, &rfds);
if(d->master >= 0)
FD_SET(d->master, &rfds);
- tv.tv_sec = 1;
- tv.tv_nsec = 0;
+ tv.tv_sec = 0;
+ tv.tv_nsec = d->progress->GetPulseInterval();
select_ret = pselect(max(d->master, _dpkgin)+1, &rfds, NULL, NULL,
&tv, &d->original_sigmask);
if (select_ret < 0 && (errno == EINVAL || errno == ENOSYS))
select_ret = racy_pselect(max(d->master, _dpkgin)+1, &rfds, NULL,
NULL, &tv, &d->original_sigmask);
+ d->progress->Pulse();
if (select_ret == 0)
continue;
else if (select_ret < 0 && errno == EINTR)
FileFd::Write(OutStatusFd, s.c_str(), s.size());
}
-void PackageManagerProgressFd::Start()
+void PackageManagerProgressFd::StartDpkg()
{
if(OutStatusFd <= 0)
return;
void PackageManagerProgressFd::Stop()
{
- // clear the Keep-Fd again
- _config->Clear("APT::Keep-Fds", OutStatusFd);
}
void PackageManagerProgressFd::Error(std::string PackageName,
void PackageManagerProgressDeb822Fd::Stop()
{
- // clear the Keep-Fd again
- _config->Clear("APT::Keep-Fds", OutStatusFd);
}
void PackageManagerProgressDeb822Fd::Error(std::string PackageName,
: percentage(0.0), last_reported_progress(-1) {};
virtual ~PackageManager() {};
+ /* Global Start/Stop */
virtual void Start() {};
virtual void Stop() {};
+ /* When dpkg is invoked (may happen multiple times for each
+ * install/remove block
+ */
+ virtual void StartDpkg() {};
+
virtual pid_t fork() {return fork(); };
virtual void Pulse() {};
public:
PackageManagerProgressFd(int progress_fd);
- virtual void Start();
+ virtual void StartDpkg();
virtual void Stop();
virtual bool StatusChanged(std::string PackageName,