logd: statistics truncate name
Prefix long truncated names with an ellipse (...). Shift left as
much as possible when doing so, but keep spaces between command
name and other tabular fields.
Test: manual/visual
Bug: 37254265
Change-Id: I185b1e121ba911a9410a8b6624e013d5a531962b
diff --git a/logd/LogStatistics.cpp b/logd/LogStatistics.cpp
index cc30f77..d3167ad 100644
--- a/logd/LogStatistics.cpp
+++ b/logd/LogStatistics.cpp
@@ -248,18 +248,38 @@
std::string(isprune ? "NUM" : ""));
}
+// Helper to truncate name, if too long, and add name dressings
+static void formatTmp(const LogStatistics& stat, const char* nameTmp, uid_t uid,
+ std::string& name, std::string& size, size_t nameLen) {
+ const char* allocNameTmp = nullptr;
+ if (!nameTmp) nameTmp = allocNameTmp = stat.uidToName(uid);
+ if (nameTmp) {
+ size_t lenSpace = std::max(nameLen - name.length(), (size_t)1);
+ size_t len = EntryBaseConstants::total_len -
+ EntryBaseConstants::pruned_len - size.length() -
+ name.length() - lenSpace - 2;
+ size_t lenNameTmp = strlen(nameTmp);
+ while ((len < lenNameTmp) && (lenSpace > 1)) {
+ ++len;
+ --lenSpace;
+ }
+ name += android::base::StringPrintf("%*s", (int)lenSpace, "");
+ if (len < lenNameTmp) {
+ name += "...";
+ nameTmp += lenNameTmp - std::max(len - 3, (size_t)1);
+ }
+ name += nameTmp;
+ free(const_cast<char*>(allocNameTmp));
+ }
+}
+
std::string UidEntry::format(const LogStatistics& stat, log_id_t id) const {
uid_t uid = getUid();
std::string name = android::base::StringPrintf("%u", uid);
- const char* nameTmp = stat.uidToName(uid);
- if (nameTmp) {
- name += android::base::StringPrintf(
- "%*s%s", (int)std::max(6 - name.length(), (size_t)1), "", nameTmp);
- free(const_cast<char*>(nameTmp));
- }
-
std::string size = android::base::StringPrintf("%zu", getSizes());
+ formatTmp(stat, nullptr, uid, name, size, 6);
+
std::string pruned = "";
if (worstUidEnabledForLogid(id)) {
size_t totalDropped = 0;
@@ -366,18 +386,10 @@
uid_t uid = getUid();
pid_t pid = getPid();
std::string name = android::base::StringPrintf("%5u/%u", pid, uid);
- const char* nameTmp = getName();
- if (nameTmp) {
- name += android::base::StringPrintf(
- "%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", nameTmp);
- } else if ((nameTmp = stat.uidToName(uid))) {
- name += android::base::StringPrintf(
- "%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", nameTmp);
- free(const_cast<char*>(nameTmp));
- }
-
std::string size = android::base::StringPrintf("%zu", getSizes());
+ formatTmp(stat, getName(), uid, name, size, 12);
+
std::string pruned = "";
size_t dropped = getDropped();
if (dropped) {
@@ -398,21 +410,10 @@
log_id_t /* id */) const {
uid_t uid = getUid();
std::string name = android::base::StringPrintf("%5u/%u", getTid(), uid);
- const char* nameTmp = getName();
- if (nameTmp) {
- name += android::base::StringPrintf(
- "%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", nameTmp);
- } else if ((nameTmp = stat.uidToName(uid))) {
- // if we do not have a PID name, lets punt to try UID name?
- name += android::base::StringPrintf(
- "%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", nameTmp);
- free(const_cast<char*>(nameTmp));
- // We tried, better to not have a name at all, we still
- // have TID/UID by number to report in any case.
- }
-
std::string size = android::base::StringPrintf("%zu", getSizes());
+ formatTmp(stat, getName(), uid, name, size, 12);
+
std::string pruned = "";
size_t dropped = getDropped();
if (dropped) {