Commit Graph

17 Commits (master)

Author SHA1 Message Date
Tim Stack e0ff4434a9 [logfile] report utf error location
Related to #1156
11 months ago
Timothy Stack 81e63784e7 [modernize] some more cleanups 2 years ago
Timothy Stack 66ef5fdae1 [clang-format] init 2 years ago
Timothy Stack db8a3c4d38 [debt] doing some cleanup
Defect Number:
    Reviewed By:
   Testing Done:
4 years ago
Suresh Sundriyal f35f855458 [tests] Remove use of deprecated std::random_shuffle 4 years ago
Phil Hord 5513deeade Add a gzip indexing class for faster gz navigation
The gzread function is slow.  Every time you seek to a new location, the
whole file up to that position has to be decompressed again.  This causes
massive lags when trying to do simple things in lnav on a large .gz file.

Use the zlib inflate* functions instead and record the dictionary
periodically while processing the file the first time.  Then use
inflateSetDictionary to restore the dictionary to a convenient
location when trying to seek into the file again in the future.

Use a default period of 1MB of compressed data for syncpoints.
Each syncpoint uses 32KB. This is a ratio of 3.2%.  For example,
a 1GB .gz file (compressed size) will require us to keep 32MB
of index data in memory. A better method may be to use a fixed
number of syncpoints and divide the file appropriately. This
would keep the memory bounded at the cost of slower file
navigation on large .gz files.

Use pread to read the data for the stream decompressor and remove
the lock_hack previously employed.

NB. The documentation on these zlib functions is sparse. I followed
the example in zlib/examples/zran.c, but I used the z_stream total_in
and total_out variables instead of keeping my own separately as zran.c
does.  Maybe this is incompatible with some very old zlib versions.
I haven't looked.
5 years ago
Timothy Stack 02c53976b4 Some refactoring for the line buffer and other cleanups
Fixes #649
5 years ago
Timothy Stack 2589345e5c [perf] improve initial indexing times 6 years ago
Suresh Sundriyal bfee33b7fd Turn on 'sign-compare' error check for tests. 9 years ago
Timothy Stack a0ccbc9872 [build] quiet a format warning 9 years ago
Timothy Stack 9ff2d3774d [line_buffer] split long lines
Fixes #81
10 years ago
Timothy Stack b6baae7730 [debug] more debugging stuff
Defect Number:
    Reviewed By:
   Testing Done:
10 years ago
Timothy Stack c9d3914b6a [cppcheck] fix some nits 10 years ago
Timothy Stack 6a38619ac7 [piper] fix for partial lines when reading stdin 10 years ago
Timothy Stack f62b5c271c [release] bump to 0.5.1 11 years ago
Timothy Stack c4e9f58bf0 [bugs] fix some long-standing bugs
* grep_proc.cc: When a request is queued with the start line
   == -1, we need to start searching from the highest line
   ever seen and not the last line processed.
 * line_buffer.cc: If a partial line was read, we need to
   avoid returning another line if more data is appended
   to the file.
 * lnav.cc: Accept file name patterns on the command-line that
   don't match any files yet.  Initialize the screen before
   redirecting stderr to the log file or /dev/null.
 * log_format.hh: Add some comments.  Start to add back support
   for scrubbing.
 * logfile_sub_source.cc: Move scrubbing to the format impl.
 * textview_curses.hh: Add comments.
12 years ago
tstack b4ec432515 first commit 15 years ago