From ffbe056dc554b3f1fdf79b4726415a70f6d59dc1 Mon Sep 17 00:00:00 2001 From: David Kalnischkies Date: Sun, 28 Sep 2014 01:57:49 +0200 Subject: replace c-string Mode with c++-string ActiveSubprocess A long-lasting FIXME in the acquire code points out the problem that we e.g. for decompressors assign c-string representations of c++-strings to the Mode variable, which e.g. cppcheck points out as very bad. In practice, nothing major happens as the c++-strings do not run out of scope until Mode would do, but that is bad style and fragile, so the obvious proper fix is to use a c++ string for storage to begin with. The slight complications stems from the fact that progress reporting code in frontends potentially uses Mode and compares it with NULL, which can't be done with std::string, so instead of just changing the type we introduce a new variable and deprecate the old one. Git-Dch: Ignore --- apt-pkg/acquire-item.cc | 52 ++++++++++++++++++++++++++++++++++++++++++++++--- apt-pkg/acquire-item.h | 7 ++++++- 2 files changed, 55 insertions(+), 4 deletions(-) (limited to 'apt-pkg') diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc index a3e02cb53..d1c1f8c5a 100644 --- a/apt-pkg/acquire-item.cc +++ b/apt-pkg/acquire-item.cc @@ -64,6 +64,10 @@ static void printHashSumComparision(std::string const &URI, HashStringList const /*}}}*/ // Acquire::Item::Item - Constructor /*{{{*/ +#if __GNUC__ >= 4 + #pragma GCC diagnostic push + #pragma GCC diagnostic ignored "-Wdeprecated-declarations" +#endif pkgAcquire::Item::Item(pkgAcquire *Owner, HashStringList const &ExpectedHashes) : Owner(Owner), FileSize(0), PartialSize(0), Mode(0), ID(0), Complete(false), Local(false), QueueCounter(0), ExpectedAdditionalItems(0), @@ -72,6 +76,9 @@ pkgAcquire::Item::Item(pkgAcquire *Owner, HashStringList const &ExpectedHashes) Owner->Add(this); Status = StatIdle; } +#if __GNUC__ >= 4 + #pragma GCC diagnostic pop +#endif /*}}}*/ // Acquire::Item::~Item - Destructor /*{{{*/ // --------------------------------------------------------------------- @@ -774,7 +781,15 @@ void pkgAcqIndexDiffs::Done(string Message,unsigned long long Size, HashStringLi Local = true; Desc.URI = "rred:" + FinalFile; QueueURI(Desc); + ActiveSubprocess = "rred"; +#if __GNUC__ >= 4 + #pragma GCC diagnostic push + #pragma GCC diagnostic ignored "-Wdeprecated-declarations" +#endif Mode = "rred"; +#if __GNUC__ >= 4 + #pragma GCC diagnostic pop +#endif return; } @@ -894,7 +909,15 @@ void pkgAcqIndexMergeDiffs::Done(string Message,unsigned long long Size,HashStri Local = true; Desc.URI = "rred:" + FinalFile; QueueURI(Desc); + ActiveSubprocess = "rred"; +#if __GNUC__ >= 4 + #pragma GCC diagnostic push + #pragma GCC diagnostic ignored "-Wdeprecated-declarations" +#endif Mode = "rred"; +#if __GNUC__ >= 4 + #pragma GCC diagnostic pop +#endif return; } // success in download/apply all diffs, clean up @@ -1191,7 +1214,15 @@ void pkgAcqIndex::Done(string Message,unsigned long long Size,HashStringList con DestFile += ".decomp"; Desc.URI = "copy:" + FileName; QueueURI(Desc); + ActiveSubprocess = "copy"; +#if __GNUC__ >= 4 + #pragma GCC diagnostic push + #pragma GCC diagnostic ignored "-Wdeprecated-declarations" +#endif Mode = "copy"; +#if __GNUC__ >= 4 + #pragma GCC diagnostic pop +#endif return; } @@ -1251,8 +1282,15 @@ void pkgAcqIndex::Done(string Message,unsigned long long Size,HashStringList con Desc.URI = decompProg + ":" + FileName; QueueURI(Desc); - // FIXME: this points to a c++ string that goes out of scope - Mode = decompProg.c_str(); + ActiveSubprocess = decompProg; +#if __GNUC__ >= 4 + #pragma GCC diagnostic push + #pragma GCC diagnostic ignored "-Wdeprecated-declarations" +#endif + Mode = ActiveSubprocess.c_str(); +#if __GNUC__ >= 4 + #pragma GCC diagnostic pop +#endif } /*}}}*/ // AcqIndexTrans::pkgAcqIndexTrans - Constructor /*{{{*/ @@ -1554,7 +1592,15 @@ void pkgAcqMetaIndex::Done(string Message,unsigned long long Size,HashStringList AuthPass = true; Desc.URI = "gpgv:" + SigFile; QueueURI(Desc); - Mode = "gpgv"; + ActiveSubprocess = "gpgv"; +#if __GNUC__ >= 4 + #pragma GCC diagnostic push + #pragma GCC diagnostic ignored "-Wdeprecated-declarations" +#endif + Mode = "gpgv"; +#if __GNUC__ >= 4 + #pragma GCC diagnostic pop +#endif return; } } diff --git a/apt-pkg/acquire-item.h b/apt-pkg/acquire-item.h index d0a61f5ec..74b5de675 100644 --- a/apt-pkg/acquire-item.h +++ b/apt-pkg/acquire-item.h @@ -133,7 +133,12 @@ class pkgAcquire::Item : public WeakPointable /** \brief If not \b NULL, contains the name of a subprocess that * is operating on this object (for instance, "gzip" or "gpgv"). */ - const char *Mode; + APT_DEPRECATED const char *Mode; + + /** \brief contains the name of the subprocess that is operating on this object + * (for instance, "gzip", "rred" or "gpgv"). This is obsoleting #Mode from above + * as it can manage the lifetime of included string properly. */ + std::string ActiveSubprocess; /** \brief A client-supplied unique identifier. * -- cgit v1.2.3