summaryrefslogtreecommitdiff
path: root/apt-pkg/acquire-item.h
diff options
context:
space:
mode:
authorMichael Vogt <mvo@debian.org>2014-02-27 22:52:34 +0100
committerMichael Vogt <mvo@debian.org>2014-02-27 22:52:34 +0100
commitfce69e7a0f38299c57ef96ae1c1dd9a5379bfd5a (patch)
treebe7d18baa836e9df166ec63f6c9fe6f94bb84b40 /apt-pkg/acquire-item.h
parenta5e790985752c6820e08e7a7e650e1607fa826e4 (diff)
parentfc104da6a583736223b2f941e43a05ea26b63a7d (diff)
Merge branch 'debian/sid' into debian/experimental
Conflicts: apt-private/private-list.cc configure.ac debian/apt.install.in debian/changelog
Diffstat (limited to 'apt-pkg/acquire-item.h')
-rw-r--r--apt-pkg/acquire-item.h119
1 files changed, 116 insertions, 3 deletions
diff --git a/apt-pkg/acquire-item.h b/apt-pkg/acquire-item.h
index 10c855e63..5a1c7979c 100644
--- a/apt-pkg/acquire-item.h
+++ b/apt-pkg/acquire-item.h
@@ -83,7 +83,7 @@ class pkgAcquire::Item : public WeakPointable
* overwritten.
*/
void Rename(std::string From,std::string To);
-
+
public:
/** \brief The current status of this item. */
@@ -281,6 +281,21 @@ class pkgAcquire::Item : public WeakPointable
* pkgAcquire::Remove.
*/
virtual ~Item();
+
+ protected:
+
+ enum RenameOnErrorState {
+ HashSumMismatch,
+ SizeMismatch,
+ InvalidFormat
+ };
+
+ /** \brief Rename failed file and set error
+ *
+ * \param state respresenting the error we encountered
+ * \param errorMsg a message describing the error
+ */
+ bool RenameOnError(RenameOnErrorState const state);
};
/*}}}*/
/** \brief Information about an index patch (aka diff). */ /*{{{*/
@@ -414,7 +429,105 @@ class pkgAcqDiffIndex : public pkgAcquire::Item
std::string ShortDesc, HashString ExpectedHash);
};
/*}}}*/
-/** \brief An item that is responsible for fetching all the patches {{{
+/** \brief An item that is responsible for fetching client-merge patches {{{
+ * that need to be applied to a given package index file.
+ *
+ * Instead of downloading and applying each patch one by one like its
+ * sister #pkgAcqIndexDiffs this class will download all patches at once
+ * and call rred with all the patches downloaded once. Rred will then
+ * merge and apply them in one go, which should be a lot faster – but is
+ * incompatible with server-based merges of patches like reprepro can do.
+ *
+ * \sa pkgAcqDiffIndex, pkgAcqIndex
+ */
+class pkgAcqIndexMergeDiffs : public pkgAcquire::Item
+{
+ protected:
+
+ /** \brief If \b true, debugging output will be written to
+ * std::clog.
+ */
+ bool Debug;
+
+ /** \brief description of the item that is currently being
+ * downloaded.
+ */
+ pkgAcquire::ItemDesc Desc;
+
+ /** \brief URI of the package index file that is being
+ * reconstructed.
+ */
+ std::string RealURI;
+
+ /** \brief HashSum of the package index file that is being
+ * reconstructed.
+ */
+ HashString ExpectedHash;
+
+ /** \brief description of the file being downloaded. */
+ std::string Description;
+
+ /** \brief information about the current patch */
+ struct DiffInfo const patch;
+
+ /** \brief list of all download items for the patches */
+ std::vector<pkgAcqIndexMergeDiffs*> const * const allPatches;
+
+ /** The current status of this patch. */
+ enum DiffState
+ {
+ /** \brief The diff is currently being fetched. */
+ StateFetchDiff,
+
+ /** \brief The diff is currently being applied. */
+ StateApplyDiff,
+
+ /** \brief the work with this diff is done */
+ StateDoneDiff,
+
+ /** \brief something bad happened and fallback was triggered */
+ StateErrorDiff
+ } State;
+
+ public:
+ /** \brief Called when the patch file failed to be downloaded.
+ *
+ * This method will fall back to downloading the whole index file
+ * outright; its arguments are ignored.
+ */
+ virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf);
+
+ virtual void Done(std::string Message,unsigned long long Size,std::string Md5Hash,
+ pkgAcquire::MethodConfig *Cnf);
+ virtual std::string DescURI() {return RealURI + "Index";};
+
+ /** \brief Create an index merge-diff item.
+ *
+ * \param Owner The pkgAcquire object that owns this item.
+ *
+ * \param URI The URI of the package index file being
+ * reconstructed.
+ *
+ * \param URIDesc A long description of this item.
+ *
+ * \param ShortDesc A brief description of this item.
+ *
+ * \param ExpectedHash The expected md5sum of the completely
+ * reconstructed package index file; the index file will be tested
+ * against this value when it is entirely reconstructed.
+ *
+ * \param patch contains infos about the patch this item is supposed
+ * to download which were read from the index
+ *
+ * \param allPatches contains all related items so that each item can
+ * check if it was the last one to complete the download step
+ */
+ pkgAcqIndexMergeDiffs(pkgAcquire *Owner,std::string const &URI,std::string const &URIDesc,
+ std::string const &ShortDesc, HashString const &ExpectedHash,
+ DiffInfo const &patch, std::vector<pkgAcqIndexMergeDiffs*> const * const allPatches);
+};
+ /*}}}*/
+/** \brief An item that is responsible for fetching server-merge patches {{{
* that need to be applied to a given package index file.
*
* After downloading and applying a single patch, this item will
@@ -982,7 +1095,7 @@ class pkgAcqArchive : public pkgAcquire::Item
*
* \param Version The package version to download.
*
- * \param StoreFilename A location in which the actual filename of
+ * \param[out] StoreFilename A location in which the actual filename of
* the package should be stored. It will be set to a guessed
* basename in the constructor, and filled in with a fully
* qualified filename once the download finishes.