Use GetExistingTempDirectories() (which uses GetTempDirectories() which respects
TEST_TMPDIR, TMPDIR, TMP environmental variables) for FLAGS_test_tmpdir variable
used in some tests.
Fixes: #793
Currently, glog allows to use of logtostderr to send error logs to
stderr, but many log tailers would regard logs from stderr as error
logs. So we want to send non-error logs to stdout and only send error
logs to stderr according to the stderrthreshold.
The flag allows suppressing the year in the log line prefix. At the same
time, the flag allows to generate log output compatible to glog releases
prior to version 0.5.
Since the value of `LogCleaner::overdue_days_` should be >= 0,
we can simply make it an unsigned int which also avoids
unnecessary assertions.
Signed-off-by: Marco Wang <m.aesophor@gmail.com>
* Fix MungeLine() for log lines that are longer than 5 characters
* Match order of log statements in logging_unittest.cc and logging_unittest.err
* Update logging_custom_prefix_unittest.cc and logging_custom_prefix_unittest.err to match logging_unittest.cc and logging_unittest.err
* Save the stream state and set the fill character before calling into a custom_prefix_callback
Use <chrono> and <atomic> for C++11 or greater.
For non-Windows pre-C++11 systems, use <time.h> and built-in atomic operations.
For Windows pre-C++11, use the Windows implementations for time and atomic operations.
Usually library does not have control of the process lifespan.
Without this function, it is impossible to init/shutdown reliably.
It has been one of the major pain points for years when using glog in libraries.
AFAIK 3 workarounds have been used previously:
1. Init without checking. This causes compatiblity issues with other libs using glog.
2. Also provide a init function in library's API. This makes API complicated and stateful, especially for libs that does not mean to stay for the entire life of process.
3. Steal the utility function in internal namespace. Does not work with msvc (due to missing dllexport) or `gcc -fvisibility=hidden`.
None of them are perfect, except for the last hack that usually works well on Linux.
0.5.0 changes default visibility to hidden and it does not work anymore.
Resolve https://github.com/google/glog/issues/125
