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-rw-r--r--apt-pkg/deb/dpkgpm.cc102
1 files changed, 57 insertions, 45 deletions
diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 790019b98..f83b368cd 100644
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -102,8 +102,8 @@ APT_PURE static unsigned int EnvironmentSize() /*{{{*/
class pkgDPkgPMPrivate /*{{{*/
{
public:
- pkgDPkgPMPrivate() : stdin_is_dev_null(false), dpkgbuf_pos(0),
- term_out(NULL), history_out(NULL),
+ pkgDPkgPMPrivate() : stdin_is_dev_null(false), status_fd_reached_end_of_file(false),
+ dpkgbuf_pos(0), term_out(NULL), history_out(NULL),
progress(NULL), tt_is_valid(false), master(-1),
slave(NULL), protect_slave_from_dying(-1),
direct_stdin(false)
@@ -114,6 +114,7 @@ public:
{
}
bool stdin_is_dev_null;
+ bool status_fd_reached_end_of_file;
// the buffer we use for the dpkg status-fd reading
char dpkgbuf[1024];
size_t dpkgbuf_pos;
@@ -141,12 +142,12 @@ namespace
// Maps the dpkg "processing" info to human readable names. Entry 0
// of each array is the key, entry 1 is the value.
const std::pair<const char *, const char *> PackageProcessingOps[] = {
- std::make_pair("install", N_("Installing %s")),
+ std::make_pair("install", N_("Preparing %s")),
// we don't care for the difference
- std::make_pair("upgrade", N_("Installing %s")),
- std::make_pair("configure", N_("Configuring %s")),
- std::make_pair("remove", N_("Removing %s")),
- std::make_pair("purge", N_("Completely removing %s")),
+ std::make_pair("upgrade", N_("Preparing %s")),
+ std::make_pair("configure", N_("Preparing to configure %s")),
+ std::make_pair("remove", N_("Preparing for removal of %s")),
+ std::make_pair("purge", N_("Preparing to completely remove %s")),
std::make_pair("disappear", N_("Noting disappearance of %s")),
std::make_pair("trigproc", N_("Running post-installation trigger %s"))
};
@@ -958,11 +959,19 @@ void pkgDPkgPM::handleCrossUpgradeAction(string const &pkgname) /*{{{*/
// DPkgPM::DoDpkgStatusFd /*{{{*/
void pkgDPkgPM::DoDpkgStatusFd(int statusfd)
{
- ssize_t const len = read(statusfd, &d->dpkgbuf[d->dpkgbuf_pos],
- (sizeof(d->dpkgbuf)/sizeof(d->dpkgbuf[0])) - d->dpkgbuf_pos);
- if(len <= 0)
- return;
- d->dpkgbuf_pos += (len / sizeof(d->dpkgbuf[0]));
+ auto const remainingBuffer = (sizeof(d->dpkgbuf) / sizeof(d->dpkgbuf[0])) - d->dpkgbuf_pos;
+ if (likely(remainingBuffer > 0) && d->status_fd_reached_end_of_file == false)
+ {
+ auto const len = read(statusfd, &d->dpkgbuf[d->dpkgbuf_pos], remainingBuffer);
+ if (len < 0)
+ return;
+ else if (len == 0 && d->dpkgbuf_pos == 0)
+ {
+ d->status_fd_reached_end_of_file = true;
+ return;
+ }
+ d->dpkgbuf_pos += (len / sizeof(d->dpkgbuf[0]));
+ }
// process line by line from the buffer
char *p = d->dpkgbuf, *q = nullptr;
@@ -1145,30 +1154,26 @@ void pkgDPkgPM::BuildPackagesProgressMap()
{
// map the dpkg states to the operations that are performed
// (this is sorted in the same way as Item::Ops)
- static const std::array<std::array<DpkgState, 3>, 4> DpkgStatesOpMap = {{
+ static const std::array<std::array<DpkgState, 2>, 4> DpkgStatesOpMap = {{
// Install operation
{{
- {"half-installed", N_("Preparing %s")},
- {"unpacked", N_("Unpacking %s") },
- {nullptr, nullptr}
+ {"half-installed", N_("Unpacking %s")},
+ {"unpacked", N_("Installing %s") },
}},
// Configure operation
{{
- {"unpacked",N_("Preparing to configure %s") },
{"half-configured", N_("Configuring %s") },
{ "installed", N_("Installed %s")},
}},
// Remove operation
{{
- {"half-configured", N_("Preparing for removal of %s")},
+ {"half-configured", N_("Removing %s")},
{"half-installed", N_("Removing %s")},
- {"config-files", N_("Removed %s")},
}},
// Purge operation
{{
- {"config-files", N_("Preparing to completely remove %s")},
+ {"config-files", N_("Completely removing %s")},
{"not-installed", N_("Completely removed %s")},
- {nullptr, nullptr}
}},
}};
static_assert(Item::Purge == 3, "Enum item has unexpected index for mapping array");
@@ -1184,21 +1189,16 @@ void pkgDPkgPM::BuildPackagesProgressMap()
string const name = I.Pkg.FullName();
PackageOpsDone[name] = 0;
- auto AddToPackageOps = std::back_inserter(PackageOps[name]);
- if (I.Op == Item::Purge && I.Pkg->CurrentVer != 0)
- {
- // purging a package which is installed first passes through remove states
- auto const DpkgOps = DpkgStatesOpMap[Item::Remove];
- std::copy(DpkgOps.begin(), DpkgOps.end(), AddToPackageOps);
+ auto AddToPackageOps = [&](decltype(I.Op) const Op) {
+ auto const DpkgOps = DpkgStatesOpMap[Op];
+ std::copy(DpkgOps.begin(), DpkgOps.end(), std::back_inserter(PackageOps[name]));
PackagesTotal += DpkgOps.size();
- }
- auto const DpkgOps = DpkgStatesOpMap[I.Op];
- std::copy_if(DpkgOps.begin(), DpkgOps.end(), AddToPackageOps, [&](DpkgState const &state) {
- if (state.state == nullptr)
- return false;
- ++PackagesTotal;
- return true;
- });
+ };
+ // purging a package which is installed first passes through remove states
+ if (I.Op == Item::Purge && I.Pkg->CurrentVer != 0)
+ AddToPackageOps(Item::Remove);
+ AddToPackageOps(I.Op);
+
if ((I.Op == Item::Remove || I.Op == Item::Purge) && I.Pkg->CurrentVer != 0)
{
if (I.Pkg->CurrentState == pkgCache::State::UnPacked ||
@@ -1622,9 +1622,9 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
approvedStates.Remove(*Ver);
Purges.erase(Ver);
auto && RemOp = PackageOps[C.first->Pkg.FullName()];
- if (RemOp.size() == 5)
+ if (RemOp.size() == 4)
{
- RemOp.erase(std::next(RemOp.begin(), 3), RemOp.end());
+ RemOp.erase(std::next(RemOp.begin(), 2), RemOp.end());
PackagesTotal -= 2;
}
else
@@ -2022,6 +2022,7 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
// we read from dpkg here
int const _dpkgin = fd[0];
close(fd[1]); // close the write end of the pipe
+ d->status_fd_reached_end_of_file = false;
// apply ionice
if (_config->FindB("DPkg::UseIoNice", false) == true)
@@ -2041,14 +2042,24 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
int Status = 0;
int res;
bool waitpid_failure = false;
- while ((res=waitpid(Child,&Status, WNOHANG)) != Child) {
- if(res < 0) {
- // error handling, waitpid returned -1
- if (errno == EINTR)
- continue;
- waitpid_failure = true;
- break;
+ bool dpkg_finished = false;
+ do
+ {
+ if (dpkg_finished == false)
+ {
+ if ((res = waitpid(Child, &Status, WNOHANG)) == Child)
+ dpkg_finished = true;
+ else if (res < 0)
+ {
+ // error handling, waitpid returned -1
+ if (errno == EINTR)
+ continue;
+ waitpid_failure = true;
+ break;
+ }
}
+ if (dpkg_finished && d->status_fd_reached_end_of_file)
+ break;
// wait for input or output here
FD_ZERO(&rfds);
@@ -2078,7 +2089,8 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
DoStdin(d->master);
if(FD_ISSET(_dpkgin, &rfds))
DoDpkgStatusFd(_dpkgin);
- }
+
+ } while (true);
close(_dpkgin);
// Restore sig int/quit
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-17 22:07:33 +0000