diff options
Diffstat (limited to 'methods')
| -rw-r--r-- | methods/rred.cc | 49 |
1 files changed, 40 insertions, 9 deletions
diff --git a/methods/rred.cc b/methods/rred.cc index d51c45c85..1a18a381c 100644 --- a/methods/rred.cc +++ b/methods/rred.cc @@ -12,6 +12,7 @@ #include <utime.h> #include <stdio.h> #include <errno.h> +#include <zlib.h> #include <apti18n.h> /*}}}*/ /** \brief RredMethod - ed-style incremential patch method {{{ @@ -33,11 +34,14 @@ class RredMethod : public pkgAcqMethod { // return values enum State {ED_OK, ED_ORDERING, ED_PARSER, ED_FAILURE, MMAP_FAILED}; - State applyFile(FILE *ed_cmds, FILE *in_file, FILE *out_file, + State applyFile(gzFile &ed_cmds, FILE *in_file, FILE *out_file, unsigned long &line, char *buffer, Hashes *hash) const; void ignoreLineInFile(FILE *fin, char *buffer) const; + void ignoreLineInFile(gzFile &fin, char *buffer) const; void copyLinesFromFileToFile(FILE *fin, FILE *fout, unsigned int lines, Hashes *hash, char *buffer) const; + void copyLinesFromFileToFile(gzFile &fin, FILE *fout, unsigned int lines, + Hashes *hash, char *buffer) const; State patchFile(FileFd &Patch, FileFd &From, FileFd &out_file, Hashes *hash) const; State patchMMap(FileFd &Patch, FileFd &From, FileFd &out_file, Hashes *hash) const; @@ -65,10 +69,10 @@ public: * \param hash the created file for correctness * \return the success State of the ed command executor */ -RredMethod::State RredMethod::applyFile(FILE *ed_cmds, FILE *in_file, FILE *out_file, +RredMethod::State RredMethod::applyFile(gzFile &ed_cmds, FILE *in_file, FILE *out_file, unsigned long &line, char *buffer, Hashes *hash) const { // get the current command and parse it - if (fgets(buffer, BUF_SIZE, ed_cmds) == NULL) { + if (gzgets(ed_cmds, buffer, BUF_SIZE) == NULL) { if (Debug == true) std::clog << "rred: encounter end of file - we can start patching now." << std::endl; line = 0; @@ -123,7 +127,7 @@ RredMethod::State RredMethod::applyFile(FILE *ed_cmds, FILE *in_file, FILE *out_ unsigned char mode = *idx; // save the current position - unsigned const long pos = ftell(ed_cmds); + unsigned const long pos = gztell(ed_cmds); // if this is add or change then go to the next full stop unsigned int data_length = 0; @@ -157,7 +161,7 @@ RredMethod::State RredMethod::applyFile(FILE *ed_cmds, FILE *in_file, FILE *out_ // include data from ed script if (mode == MODE_CHANGED || mode == MODE_ADDED) { - fseek(ed_cmds, pos, SEEK_SET); + gzseek(ed_cmds, pos, SEEK_SET); copyLinesFromFileToFile(ed_cmds, out_file, data_length, hash, buffer); } @@ -183,6 +187,18 @@ void RredMethod::copyLinesFromFileToFile(FILE *fin, FILE *fout, unsigned int lin } } /*}}}*/ +void RredMethod::copyLinesFromFileToFile(gzFile &fin, FILE *fout, unsigned int lines,/*{{{*/ + Hashes *hash, char *buffer) const { + while (0 < lines--) { + do { + gzgets(fin, buffer, BUF_SIZE); + size_t const written = fwrite(buffer, 1, strlen(buffer), fout); + hash->Add((unsigned char*)buffer, written); + } while (strlen(buffer) == (BUF_SIZE - 1) && + buffer[BUF_SIZE - 2] != '\n'); + } +} + /*}}}*/ void RredMethod::ignoreLineInFile(FILE *fin, char *buffer) const { /*{{{*/ fgets(buffer, BUF_SIZE, fin); while (strlen(buffer) == (BUF_SIZE - 1) && @@ -192,11 +208,20 @@ void RredMethod::ignoreLineInFile(FILE *fin, char *buffer) const { /*{{{*/ } } /*}}}*/ +void RredMethod::ignoreLineInFile(gzFile &fin, char *buffer) const { /*{{{*/ + gzgets(fin, buffer, BUF_SIZE); + while (strlen(buffer) == (BUF_SIZE - 1) && + buffer[BUF_SIZE - 2] != '\n') { + gzgets(fin, buffer, BUF_SIZE); + buffer[0] = ' '; + } +} + /*}}}*/ RredMethod::State RredMethod::patchFile(FileFd &Patch, FileFd &From, /*{{{*/ FileFd &out_file, Hashes *hash) const { char buffer[BUF_SIZE]; FILE* fFrom = fdopen(From.Fd(), "r"); - FILE* fPatch = fdopen(Patch.Fd(), "r"); + gzFile fPatch = Patch.gzFd(); FILE* fTo = fdopen(out_file.Fd(), "w"); /* we do a tail recursion to read the commands in the right order */ @@ -228,6 +253,12 @@ RredMethod::State RredMethod::patchMMap(FileFd &Patch, FileFd &From, /*{{{*/ FileFd &out_file, Hashes *hash) const { #ifdef _POSIX_MAPPED_FILES MMap ed_cmds(Patch, 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; + } MMap in_file(From, MMap::ReadOnly); if (ed_cmds.Size() == 0 || in_file.Size() == 0) @@ -445,7 +476,7 @@ 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::ReadOnly); + FileFd Patch(Path+".ed",FileFd::ReadOnlyGzip); FileFd To(Itm->DestFile,FileFd::WriteAtomic); To.EraseOnFailure(); if (_error->PendingError() == true) @@ -456,8 +487,8 @@ bool RredMethod::Fetch(FetchItem *Itm) /*{{{*/ State const result = patchMMap(Patch, From, To, &Hash); if (result == MMAP_FAILED) { // retry with patchFile - lseek(Patch.Fd(), 0, SEEK_SET); - lseek(From.Fd(), 0, SEEK_SET); + Patch.Seek(0); + From.Seek(0); To.Open(Itm->DestFile,FileFd::WriteAtomic); if (_error->PendingError() == true) return false; |