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authorMichael Denkowski <michael.j.denkowski@gmail.com>2012-12-22 16:01:23 -0500
committerMichael Denkowski <michael.j.denkowski@gmail.com>2012-12-22 16:01:23 -0500
commit597d89c11db53e91bc011eab70fd613bbe6453e8 (patch)
tree83c87c07d1ff6d3ee4e3b1626f7eddd49c61095b /klm/util/file_piece.hh
parent65e958ff2678a41c22be7171456a63f002ef370b (diff)
parent201af2acd394415a05072fbd53d42584875aa4b4 (diff)
Merge branch 'master' of git://github.com/redpony/cdec
Diffstat (limited to 'klm/util/file_piece.hh')
-rw-r--r--klm/util/file_piece.hh41
1 files changed, 13 insertions, 28 deletions
diff --git a/klm/util/file_piece.hh b/klm/util/file_piece.hh
index af93d8aa..39bd1581 100644
--- a/klm/util/file_piece.hh
+++ b/klm/util/file_piece.hh
@@ -4,8 +4,8 @@
#include "util/ersatz_progress.hh"
#include "util/exception.hh"
#include "util/file.hh"
-#include "util/have.hh"
#include "util/mmap.hh"
+#include "util/read_compressed.hh"
#include "util/string_piece.hh"
#include <cstddef>
@@ -13,10 +13,6 @@
#include <stdint.h>
-#ifdef HAVE_ZLIB
-#include <zlib.h>
-#endif
-
namespace util {
class ParseNumberException : public Exception {
@@ -25,28 +21,19 @@ class ParseNumberException : public Exception {
~ParseNumberException() throw() {}
};
-class GZException : public Exception {
- public:
-#ifdef HAVE_ZLIB
- explicit GZException(gzFile file);
-#endif
- GZException() throw() {}
- ~GZException() throw() {}
-};
-
extern const bool kSpaces[256];
-// Memory backing the returned StringPiece may vanish on the next call.
+// Memory backing the returned StringPiece may vanish on the next call.
class FilePiece {
public:
- // 32 MB default.
- explicit FilePiece(const char *file, std::ostream *show_progress = NULL, std::size_t min_buffer = 33554432);
- // Takes ownership of fd. name is used for messages.
- explicit FilePiece(int fd, const char *name, std::ostream *show_progress = NULL, std::size_t min_buffer = 33554432);
+ // 1 MB default.
+ explicit FilePiece(const char *file, std::ostream *show_progress = NULL, std::size_t min_buffer = 1048576);
+ // Takes ownership of fd. name is used for messages.
+ explicit FilePiece(int fd, const char *name, std::ostream *show_progress = NULL, std::size_t min_buffer = 1048576);
~FilePiece();
-
- char get() {
+
+ char get() {
if (position_ == position_end_) {
Shift();
if (at_end_) throw EndOfFileException();
@@ -54,14 +41,14 @@ class FilePiece {
return *(position_++);
}
- // Leaves the delimiter, if any, to be returned by get(). Delimiters defined by isspace().
+ // Leaves the delimiter, if any, to be returned by get(). Delimiters defined by isspace().
StringPiece ReadDelimited(const bool *delim = kSpaces) {
SkipSpaces(delim);
return Consume(FindDelimiterOrEOF(delim));
}
// Unlike ReadDelimited, this includes leading spaces and consumes the delimiter.
- // It is similar to getline in that way.
+ // It is similar to getline in that way.
StringPiece ReadLine(char delim = '\n');
float ReadFloat();
@@ -69,7 +56,7 @@ class FilePiece {
long int ReadLong();
unsigned long int ReadULong();
- // Skip spaces defined by isspace.
+ // Skip spaces defined by isspace.
void SkipSpaces(const bool *delim = kSpaces) {
for (; ; ++position_) {
if (position_ == position_end_) Shift();
@@ -82,7 +69,7 @@ class FilePiece {
}
const std::string &FileName() const { return file_name_; }
-
+
private:
void Initialize(const char *name, std::ostream *show_progress, std::size_t min_buffer);
@@ -122,9 +109,7 @@ class FilePiece {
std::string file_name_;
-#ifdef HAVE_ZLIB
- gzFile gz_file_;
-#endif // HAVE_ZLIB
+ ReadCompressed fell_back_;
};
} // namespace util