easyloggingpp | extremely powerful , extendable , light-weight , fast
kandi X-RAY | easyloggingpp Summary
kandi X-RAY | easyloggingpp Summary
Easylogging++ is single header efficient logging library for C++ applications. It is extremely powerful, highly extendable and configurable to user's requirements. It provides ability to write your own sinks (via featured referred as LogDispatchCallback). This library is currently used by hundreds of open-source projects on github and other open-source source control management sites. This manual is for Easylogging++ v9.96.7. For other versions please refer to corresponding release on github. You may also be interested in Residue logging server.
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Community Discussions
Trending Discussions on easyloggingpp
QUESTION
Full listing included at the end, here specific parts:
add_library(common common.h utils.h utils.cc)
and
...ANSWER
Answered 2019-Jan-20 at 03:21Linking order matters for static libraries with bfd ld. (not sure about gold). libcommon.a is read, processed and dropped before libcompilation_context.a
is brought around which needs symbols declared in libcommon.a
.
The old fashion way to fix this was ld c.o -lcommon -lcompilation_context -lcommon
. cmake
's LINK_INTERFACE_MULTIPLICITY
should (I think) solve your problem.
QUESTION
I want to write to log file with timestamp. The timestamp should represent the time interval from beginning of the application like below:
1: This log message arrived after 1s of starting the application
5: This log message arrived after 5s of starting the application
Then i want to read the log message in that exact time interval. Like after 1s i will read the first message then when 5s is passed i will read the second message.
Is there any library by which i can do that? I have found some library like easyloggingcpp which can save log file using timestamp. But the timestamp is the corresponding time. Also i have not found any way how to read the message on specific time interval.
Is there any way i can do it?
...ANSWER
Answered 2018-May-28 at 09:03Global variables are guaranteed to be initialized before main is run.
So first create a global const
variable app_start_time
initialized with the value
QUESTION
I would like to download easylogging++ package, extract the content and then directly use easylogging++.h and easylogging++.cc in my sources.
I started with this:
...ANSWER
Answered 2018-Apr-22 at 19:41It seems that ExternalProject_Add is not for the use case I am trying to implement. It looks like the download is only executed during compilation step, not the configuration step. That's a bummer.
I was able to achieve similar result by coding this manually and it works fairly well:
QUESTION
I have relatively complex cmake
project with multiple sub-projects - one for third party software (which also includes further sub-projects), one for the application I'm working on and one for the tests.
ANSWER
Answered 2018-Mar-06 at 16:42I asume your file is in ${CMAKE_SOURCE_DIR}/3rdparty/LL/include/LL/network
.
You didn't add ${CMAKE_SOURCE_DIR}/3rdparty/LL/include/
to the include directories of your test project so it can't be found.
Adding
QUESTION
I'm developing a code which uses Easylogging++ as the underlying logging library. Recently, I wanted to update the library since it has some high visibility / high impact bugs and I found out that the library is divided into two files (.cc
and .h
). This new structure needs inclusion of the .cc
file in the build string alongside the main program code.
I'm using Eclipse to develop the project and generate the make files to build the project. I need to tell Eclipse (Oxygen.1) that it needs to compile the .cc
file alongside the main file while building the project, however I was unable to do so. Any help is greatly appreciated.
ANSWER
Answered 2017-Oct-14 at 21:55It's easier than I thought. Eclipse's managed build is more intelligent than it seems. Adding many source files under the /src
folder causes Eclipse to automatically compile all the files under that folder, unless you exclude them.
This means adding the .h
to /lib
folder and the .cc
file to the /src
folder and modifying to .cc
to look for the .h
file under /lib
have solved the problem neatly.
To complete the compilation I had to add some flags, since the developer likes to extensively modify his library between releases.
Everything is working fine again.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install easyloggingpp
In order to get started with Easylogging++, you can follow three easy steps:. That simple! Please note that INITIALIZE_EASYLOGGINGPP should be used once and once-only otherwise you will end up getting compilation errors. This is the definition of several extern variables. This means it can be defined only once per application. Best place to put this initialization statement is in file where int main(int, char**) function is defined, right after last include statement.
Download latest version
Include into your project (easylogging++.h and easylogging++.cc)
Initialize using single macro... and off you go!
If you want to install this header system-wide, you can do so via:. Following options are supported by Easylogging++ cmake and you can turn these options on using -D<option>=ON. With that said, you will still need easylogging++.cc file in order to compile. For header only, please check v9.89 and lower.
lib_utc_datetime - Defines ELPP_UTC_DATETIME
build_static_lib - Builds static library for Easylogging++
GNU/Linux 4.4 / Ubuntu 4.8.4 64-bit / clang++. GNU/Linux 4.4 / Ubuntu 4.8.4 64-bit / g++-4.9. GNU/Linux 4.4 / Ubuntu 4.8.4 64-bit / g++-5. GNU/Linux 4.4 / Ubuntu 4.8.4 64-bit / g++-6. GNU/Linux 4.4 / Ubuntu 4.8.4 64-bit / g++-7. GNU/Linux 4.4 / Ubuntu 4.8.4 64-bit / clang++. GNU/Linux 4.4 / Ubuntu 4.8.4 64-bit / g++-4.9. GNU/Linux 4.4 / Ubuntu 4.8.4 64-bit / g++-5. GNU/Linux 4.4 / Ubuntu 4.8.4 64-bit / g++-6. GNU/Linux 4.4 / Ubuntu 4.8.4 64-bit / g++-7.
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