logger: filter log messages based on severity level

This patch adds '--log-level' options

supported log levels:
{
   "NONE",
   "ERROR",
   "WARNING",
   "INFO",
   "DEBUG",
   "TRACE"
}

TRACE being max logging

$ gluster-blockd --help
[...]
  --log-level <LOGLEVEL>
        Logging severity. Valid options are,
        TRACE, DEBUG, INFO, WARNING, ERROR and NONE [default: INFO]
[...]

Change-Id: I5a387eea3e7e7be10a0b56102a61eb81b4ebf2fa
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/utils/utils.c b/utils/utils.c
index 49a5d3d..ec85882 100644
--- a/utils/utils.c
+++ b/utils/utils.c
@@ -13,6 +13,8 @@
 # include "config.h"
 
 
+size_t logLevel = GB_LOG_INFO;
+
 const char *argp_program_version = ""                                 \
   PACKAGE_NAME" ("PACKAGE_VERSION")"                                  \
   "\nRepository rev: https://github.com/gluster/gluster-block.git\n"  \
@@ -69,6 +71,26 @@ glusterBlockDaemonOptEnumParse(const char *opt)
 
 
 int
+blockLogLevelEnumParse(const char *opt)
+{
+  int i;
+
+
+  if (!opt) {
+    return GB_LOG_MAX;
+  }
+
+  for (i = 0; i < GB_LOG_MAX; i++) {
+    if (!strcmp(opt, LogLevelLookup[i])) {
+      return i;
+    }
+  }
+
+  return i;
+}
+
+
+int
 blockMetaKeyEnumParse(const char *opt)
 {
   int i;