Merge remote-tracking branch 'origin/master'

pull/2/merge
Anton Smirnov 8 years ago
commit d2a08c58fd

@ -8,7 +8,7 @@ A systemd-journal native logging lib wrapper.
## Usage
```ruby
require 'journald/native'
require 'journald/native'
```
### Constants
@ -18,14 +18,14 @@ Constants are used to denote a log level
Available constants:
```ruby
Journald::LOG_EMERG # system is unusable
Journald::LOG_ALERT # action must be taken immediately
Journald::LOG_CRIT # critical conditions
Journald::LOG_ERR # error conditions
Journald::LOG_WARNING # warning conditions
Journald::LOG_NOTICE # normal but significant condition
Journald::LOG_INFO # informational
Journald::LOG_DEBUG # debug-level messages
Journald::LOG_EMERG # system is unusable
Journald::LOG_ALERT # action must be taken immediately
Journald::LOG_CRIT # critical conditions
Journald::LOG_ERR # error conditions
Journald::LOG_WARNING # warning conditions
Journald::LOG_NOTICE # normal but significant condition
Journald::LOG_INFO # informational
Journald::LOG_DEBUG # debug-level messages
```
systemd-journal uses syslog constants to denote level therefore they are equal to those of the Syslog module,
@ -38,14 +38,14 @@ Methods of Journald::Native class wrap systemd-journal calls.
[See sd-journal help for more info](http://www.freedesktop.org/software/systemd/man/sd_journal_print.html)
```ruby
Journald::Native.send "MESSAGE=message", "PRIORITY=#{Journald::LOG_WARNING}"
Journald::Native.print Journald::LOG_WARNING, "message"
Journald::Native.perror "message"
Journald::Native.send "MESSAGE=message", "PRIORITY=#{Journald::LOG_WARNING}"
Journald::Native.print Journald::LOG_WARNING, "message"
Journald::Native.perror "message"
```
It is not recommended to use ```print``` and ```perror``` as you may lose ```'\0'``` byte in your string due to
C zero-terminated string format (all zero bytes in the middle will be removed) On the contrary ```send``` uses
binary buffers and does not have such shortcoming.
binary buffers and does not have this shortcoming.
### License

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