enable FileFd to guess the compressor based on the filename if requested or

[apt.git] / methods / rred.cc

diff --git a/methods/rred.cc b/methods/rred.cc
index 1a18a381c803351dd46d56f846a4b8e0277fb794..56ad8220b8006e5ff2d4cd33140bb3064d794ff0 100644 (file)
--- a/methods/rred.cc
+++ b/methods/rred.cc
@@ -1,10 +1,13 @@
 // Includes                                                                    /*{{{*/
+#include <config.h>
+
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/mmap.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/acquire-method.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/hashes.h>
+#include <apt-pkg/configuration.h>
 
 #include <sys/stat.h>
 #include <sys/uio.h>
@@ -51,7 +54,7 @@ protected:
        virtual bool Fetch(FetchItem *Itm);
 
 public:
-       RredMethod() : pkgAcqMethod("1.1",SingleInstance | SendConfig) {};
+       RredMethod() : pkgAcqMethod("1.1",SingleInstance | SendConfig), Debug(false) {};
 };
                                                                                /*}}}*/
 /** \brief applyFile - in reverse order with a tail recursion                  {{{
@@ -239,7 +242,9 @@ RredMethod::State RredMethod::patchFile(FileFd &Patch, FileFd &From,                /*{{{*/
    return result;
 }
                                                                                /*}}}*/
-struct EdCommand {                                                             /*{{{*/
+/* struct EdCommand                                                            {{{*/
+#ifdef _POSIX_MAPPED_FILES
+struct EdCommand {
   size_t data_start;
   size_t data_end;
   size_t data_lines;
@@ -248,17 +253,25 @@ struct EdCommand {                                                                /*{{{*/
   char type;
 };
 #define IOV_COUNT 1024 /* Don't really want IOV_MAX since it can be arbitrarily large */
+#endif
                                                                                /*}}}*/
 RredMethod::State RredMethod::patchMMap(FileFd &Patch, FileFd &From,           /*{{{*/
                                        FileFd &out_file, Hashes *hash) const {
 #ifdef _POSIX_MAPPED_FILES
-       MMap ed_cmds(Patch, MMap::ReadOnly);
+       MMap ed_cmds(MMap::ReadOnly);
        if (Patch.gzFd() != NULL) {
-               unsigned long mapSize = Patch.Size();
-               DynamicMMap dyn(0, mapSize, 0);
-               gzread(Patch.gzFd(), dyn.Data(), mapSize);
-               ed_cmds = dyn;
-       }
+               unsigned long long mapSize = Patch.Size();
+               DynamicMMap* dyn = new DynamicMMap(0, mapSize, 0);
+               if (dyn->validData() == false) {
+                       delete dyn;
+                       return MMAP_FAILED;
+               }
+               dyn->AddSize(mapSize);
+               gzread(Patch.gzFd(), dyn->Data(), mapSize);
+               ed_cmds = *dyn;
+       } else
+               ed_cmds = MMap(Patch, MMap::ReadOnly);
+
        MMap in_file(From, MMap::ReadOnly);
 
        if (ed_cmds.Size() == 0 || in_file.Size() == 0)
@@ -460,7 +473,7 @@ bool RredMethod::Fetch(FetchItem *Itm)                                              /*{{{*/
 {
    Debug = _config->FindB("Debug::pkgAcquire::RRed", false);
    URI Get = Itm->Uri;
-   string Path = Get.Host + Get.Path; // To account for relative paths
+   std::string Path = Get.Host + Get.Path; // To account for relative paths
 
    FetchResult Res;
    Res.Filename = Itm->DestFile;
@@ -476,7 +489,7 @@ bool RredMethod::Fetch(FetchItem *Itm)                                              /*{{{*/
    // Open the source and destination files (the d'tor of FileFd will do 
    // the cleanup/closing of the fds)
    FileFd From(Path,FileFd::ReadOnly);
-   FileFd Patch(Path+".ed",FileFd::ReadOnlyGzip);
+   FileFd Patch(Path+".ed",FileFd::ReadOnly, FileFd::Gzip);
    FileFd To(Itm->DestFile,FileFd::WriteAtomic);   
    To.EraseOnFailure();
    if (_error->PendingError() == true)
@@ -513,7 +526,7 @@ bool RredMethod::Fetch(FetchItem *Itm)                                              /*{{{*/
       and use the access time from the "old" file */
    struct stat BufBase, BufPatch;
    if (stat(Path.c_str(),&BufBase) != 0 ||
-       stat(string(Path+".ed").c_str(),&BufPatch) != 0)
+       stat(std::string(Path+".ed").c_str(),&BufPatch) != 0)
       return _error->Errno("stat",_("Failed to stat"));
 
    struct utimbuf TimeBuf;