prefer upgrading installed provides satisfier

[apt.git] / apt-pkg / acquire.h

diff --git a/apt-pkg/acquire.h b/apt-pkg/acquire.h
index aa581dfb877799f2bd8227dd2eae26a1b43ff401..7044797b364877cddfe4d067fe0ac154d600e5c7 100644 (file)
--- a/apt-pkg/acquire.h
+++ b/apt-pkg/acquire.h
@@ -4,7 +4,7 @@
 
    Acquire - File Acquiration
    
-   This module contians the Acquire system. It is responsible for bringing
+   This module contains the Acquire system. It is responsible for bringing
    files into the local pathname space. It deals with URIs for files and
    URI handlers responsible for downloading or finding the URIs.
    
@@ -236,8 +236,15 @@ class pkgAcquire
     *
     *  \param WSet The set of file descriptors that are ready for
     *  output.
+    *
+    * \return false if there is an error condition on one of the fds
     */
-   virtual void RunFds(fd_set *RSet,fd_set *WSet);   
+   bool RunFdsSane(fd_set *RSet,fd_set *WSet);
+
+   // just here for compatbility, needs to be removed on the next
+   // ABI/API break. RunFdsSane() is what should be used as it
+   // returns if there is an error condition on one of the fds
+   virtual void RunFds(fd_set *RSet,fd_set *WSet);
 
    /** \brief Check for idle queues with ready-to-fetch items.
     *
@@ -303,9 +310,11 @@ class pkgAcquire
 
    /** \brief Get the head of the list of items. */
    inline ItemIterator ItemsBegin() {return Items.begin();};
+   inline ItemCIterator ItemsBegin() const {return Items.begin();};
 
    /** \brief Get the end iterator of the list of items. */
    inline ItemIterator ItemsEnd() {return Items.end();};
+   inline ItemCIterator ItemsEnd() const {return Items.end();};
    
    // Iterate over queued Item URIs
    class UriIterator;
@@ -355,7 +364,7 @@ class pkgAcquire
     *  if no lock file should be used. If set also all needed directories
     *  will be created.
     */
-   APT_DEPRECATED bool Setup(pkgAcquireStatus *Progress = NULL, std::string const &Lock = "");
+   APT_DEPRECATED_MSG("Use constructors, .SetLog and .GetLock as needed") bool Setup(pkgAcquireStatus *Progress = NULL, std::string const &Lock = "");
 
    void SetLog(pkgAcquireStatus *Progress) { Log = Progress; }
 
@@ -419,23 +428,15 @@ class pkgAcquire::Queue
    protected:
 
    /** \brief A single item placed in this queue. */
-   struct QItem : public WeakPointable
+   struct QItem : public ItemDesc
    {
       /** \brief The next item in the queue. */
       QItem *Next;
       /** \brief The worker associated with this item, if any. */
       pkgAcquire::Worker *Worker;
 
-      /** \brief The URI from which to download this item. */
-      std::string URI;
-      /** \brief A description of this item. */
-      std::string Description;
-      /** \brief A shorter description of this item. */
-      std::string ShortDesc;
       /** \brief The underlying items interested in the download */
       std::vector<Item*> Owners;
-      // both, backward compatibility and easy access as syncing is interal
-      Item * Owner;
 
       typedef std::vector<Item*>::const_iterator owner_iterator;