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libutil: Add an example for util_log

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Build:
$ make -C libutil/util_log_example

* Every time a -V option is passed, the verbosity level increases and extra
messages are enabled.

Test:
$ ./libutil/util_log_example
 # No output
$ ./libutil/util_log_example -V
ERROR: This is an ERROR message
$ ./libutil/util_log_example -VV
ERROR: This is an ERROR message
 WARN: This is a WARN message
$ ./libutil/util_log_example -VVV
ERROR: This is an ERROR message
 WARN: This is a WARN message
 INFO: This is an INFO message
$ ./libutil/util_log_example -VVVV
ERROR: This is an ERROR message
 WARN: This is a WARN message
 INFO: This is an INFO message
DEBUG: This is a DEBUG message
$ ./libutil/util_log_example -VVVVV
ERROR: This is an ERROR message
 WARN: This is a WARN message
 INFO: This is an INFO message
DEBUG: This is a DEBUG message
TRACE: This is a TRACE message

Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Reviewed-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Alexander Egorenkov
2021-04-22 12:45:40 +02:00
committed by Jan Höppner
parent 568caa0501
commit f6ab7f6cda
2 changed files with 83 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
libutil/Makefile
+2
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@@ -8,6 +8,7 @@ examples = util_base_example \
util_scandir_example \
util_file_example \
util_libc_example \
util_log_example \
util_opt_example \
util_opt_command_example \
util_prg_example \
@@ -37,6 +38,7 @@ util_path_example: util_path_example.o $(lib)
util_scandir_example: util_scandir_example.o $(lib)
util_file_example: util_file_example.o $(lib)
util_libc_example: util_libc_example.o $(lib)
util_log_example: util_log_example.o $(lib)
util_opt_example: util_opt_example.o $(lib)
util_opt_command_example: util_opt_command_example.o $(lib)
util_panic_example: util_panic_example.o $(lib)