[2/6] impala git commit: IMPALA-7237: handle hex digits in ParseSmaps()

[ta...@apache.org]

IMPALA-7237: handle hex digits in ParseSmaps()

Testing:
Manual. Added some temporary logging to print out which branch it took
with each line and confirmed it took the right branch for a line
starting with 'f'.

Change-Id: I3dad846dafb25b414bee1858eb63f3eda31d59ac
Reviewed-on: http://gerrit.cloudera.org:8080/10853
Reviewed-by: Impala Public Jenkins <im...@cloudera.com>
Tested-by: Impala Public Jenkins <im...@cloudera.com>


Project: http://git-wip-us.apache.org/repos/asf/impala/repo
Commit: http://git-wip-us.apache.org/repos/asf/impala/commit/83448f1c
Tree: http://git-wip-us.apache.org/repos/asf/impala/tree/83448f1c
Diff: http://git-wip-us.apache.org/repos/asf/impala/diff/83448f1c

Branch: refs/heads/master
Commit: 83448f1c41d3f73ce0c0174c1725c78af3afd0d0
Parents: d03a2d6
Author: Tim Armstrong <ta...@cloudera.com>
Authored: Mon Jul 2 17:08:46 2018 -0700
Committer: Impala Public Jenkins <im...@cloudera.com>
Committed: Tue Jul 3 18:29:31 2018 +0000

----------------------------------------------------------------------
 be/src/util/mem-info.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/impala/blob/83448f1c/be/src/util/mem-info.cc
----------------------------------------------------------------------
diff --git a/be/src/util/mem-info.cc b/be/src/util/mem-info.cc
index 9ffc98d..10ce09f 100644
--- a/be/src/util/mem-info.cc
+++ b/be/src/util/mem-info.cc
@@ -115,9 +115,10 @@ MappedMemInfo MemInfo::ParseSmaps() {
     string line;
     getline(smaps, line);
     if (line.empty()) continue;
-    if (isdigit(line[0])) {
+    if (isdigit(line[0]) || (line[0] >= 'a' && line[0] <= 'f')) {
       // Line is the start of a new mapping, of form:
       // 561ceff9c000-561ceffa1000 rw-p 00000000 00:00 0
+      // We distinguish this case by checking for lower-case hex digits.
       ++result.num_maps;
       continue;
     }