void LogStatistics::format(char **buf, uid_t uid, unsigned int logMask) {
static const unsigned short spaces_total = 19;
if (*buf) {
free(*buf);
*buf = NULL;
}
// Report on total logging, current and for all time
android::String8 output("size/num");
size_t oldLength;
short spaces = 1;
log_id_for_each(id) {
if (!(logMask & (1 << id))) {
continue;
}
oldLength = output.length();
if (spaces < 0) {
spaces = 0;
}
output.appendFormat("%*s%s", spaces, "", android_log_id_to_name(id));
spaces += spaces_total + oldLength - output.length();
}
spaces = 4;
output.appendFormat("\nTotal");
log_id_for_each(id) {
if (!(logMask & (1 << id))) {
continue;
}
oldLength = output.length();
if (spaces < 0) {
spaces = 0;
}
output.appendFormat("%*s%zu/%zu", spaces, "",
sizesTotal(id), elementsTotal(id));
spaces += spaces_total + oldLength - output.length();
}
spaces = 6;
output.appendFormat("\nNow");
log_id_for_each(id) {
if (!(logMask & (1 << id))) {
continue;
}
size_t els = elements(id);
if (els) {
oldLength = output.length();
if (spaces < 0) {
spaces = 0;
}
output.appendFormat("%*s%zu/%zu", spaces, "", sizes(id), els);
spaces -= output.length() - oldLength;
}
spaces += spaces_total;
}
// Report on Chattiest
// Chattiest by application (UID)
static const size_t maximum_sorted_entries = 32;
log_id_for_each(id) {
if (!(logMask & (1 << id))) {
continue;
}
bool headerPrinted = false;
std::unique_ptr<const UidEntry *[]> sorted = sort(maximum_sorted_entries, id);
ssize_t index = -1;
while ((index = uidTable_t::next(index, sorted, maximum_sorted_entries)) >= 0) {
const UidEntry *entry = sorted[index];
uid_t u = entry->getKey();
if ((uid != AID_ROOT) && (u != uid)) {
continue;
}
if (!headerPrinted) {
output.appendFormat("\n\n");
android::String8 name("");
if (uid == AID_ROOT) {
name.appendFormat(
"Chattiest UIDs in %s log buffer:",
android_log_id_to_name(id));
} else {
name.appendFormat(
"Logging for your UID in %s log buffer:",
android_log_id_to_name(id));
}
android::String8 size("Size");
android::String8 pruned("Pruned");
if (!worstUidEnabledForLogid(id)) {
pruned.setTo("");
}
format_line(output, name, size, pruned);
name.setTo("UID PACKAGE");
size.setTo("BYTES");
pruned.setTo("LINES");
if (!worstUidEnabledForLogid(id)) {
pruned.setTo("");
}
format_line(output, name, size, pruned);
headerPrinted = true;
}
android::String8 name("");
name.appendFormat("%u", u);
char *n = uidToName(u);
if (n) {
name.appendFormat("%*s%s", (int)std::max(6 - name.length(), (size_t)1), "", n);
free(n);
}
android::String8 size("");
size.appendFormat("%zu", entry->getSizes());
android::String8 pruned("");
size_t dropped = entry->getDropped();
if (dropped) {
pruned.appendFormat("%zu", dropped);
}
format_line(output, name, size, pruned);
}
}
if (enable) {
// Pid table
bool headerPrinted = false;
std::unique_ptr<const PidEntry *[]> sorted = pidTable.sort(maximum_sorted_entries);
ssize_t index = -1;
while ((index = pidTable.next(index, sorted, maximum_sorted_entries)) >= 0) {
const PidEntry *entry = sorted[index];
uid_t u = entry->getUid();
if ((uid != AID_ROOT) && (u != uid)) {
continue;
}
if (!headerPrinted) {
output.appendFormat("\n\n");
android::String8 name("");
if (uid == AID_ROOT) {
name.appendFormat("Chattiest PIDs:");
} else {
name.appendFormat("Logging for this PID:");
}
android::String8 size("Size");
android::String8 pruned("Pruned");
format_line(output, name, size, pruned);
name.setTo(" PID/UID COMMAND LINE");
size.setTo("BYTES");
pruned.setTo("LINES");
format_line(output, name, size, pruned);
headerPrinted = true;
}
android::String8 name("");
name.appendFormat("%5u/%u", entry->getKey(), u);
const char *n = entry->getName();
if (n) {
name.appendFormat("%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", n);
} else {
char *un = uidToName(u);
if (un) {
name.appendFormat("%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", un);
free(un);
}
}
android::String8 size("");
size.appendFormat("%zu", entry->getSizes());
android::String8 pruned("");
size_t dropped = entry->getDropped();
if (dropped) {
pruned.appendFormat("%zu", dropped);
}
format_line(output, name, size, pruned);
}
}
if (enable) {
// Tid table
bool headerPrinted = false;
// sort() returns list of references, unique_ptr makes sure self-delete
std::unique_ptr<const TidEntry *[]> sorted = tidTable.sort(maximum_sorted_entries);
ssize_t index = -1;
while ((index = tidTable.next(index, sorted, maximum_sorted_entries)) >= 0) {
const TidEntry *entry = sorted[index];
uid_t u = entry->getUid();
if ((uid != AID_ROOT) && (u != uid)) {
continue;
}
if (!headerPrinted) { // Only print header if we have table to print
output.appendFormat("\n\n");
android::String8 name("Chattiest TIDs:");
android::String8 size("Size");
android::String8 pruned("Pruned");
format_line(output, name, size, pruned);
name.setTo(" TID/UID COMM");
size.setTo("BYTES");
pruned.setTo("LINES");
format_line(output, name, size, pruned);
headerPrinted = true;
}
android::String8 name("");
name.appendFormat("%5u/%u", entry->getKey(), u);
const char *n = entry->getName();
if (n) {
name.appendFormat("%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", n);
} else {
// if we do not have a PID name, lets punt to try UID name?
char *un = uidToName(u);
if (un) {
name.appendFormat("%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", un);
free(un);
}
// We tried, better to not have a name at all, we still
// have TID/UID by number to report in any case.
}
android::String8 size("");
size.appendFormat("%zu", entry->getSizes());
android::String8 pruned("");
size_t dropped = entry->getDropped();
if (dropped) {
pruned.appendFormat("%zu", dropped);
}
format_line(output, name, size, pruned);
}
}
if (enable && (logMask & (1 << LOG_ID_EVENTS))) {
// Tag table
bool headerPrinted = false;
std::unique_ptr<const TagEntry *[]> sorted = tagTable.sort(maximum_sorted_entries);
ssize_t index = -1;
while ((index = tagTable.next(index, sorted, maximum_sorted_entries)) >= 0) {
const TagEntry *entry = sorted[index];
uid_t u = entry->getUid();
if ((uid != AID_ROOT) && (u != uid)) {
continue;
}
android::String8 pruned("");
if (!headerPrinted) {
output.appendFormat("\n\n");
android::String8 name("Chattiest events log buffer TAGs:");
android::String8 size("Size");
format_line(output, name, size, pruned);
name.setTo(" TAG/UID TAGNAME");
size.setTo("BYTES");
format_line(output, name, size, pruned);
headerPrinted = true;
}
android::String8 name("");
if (u == (uid_t)-1) {
name.appendFormat("%7u", entry->getKey());
} else {
name.appendFormat("%7u/%u", entry->getKey(), u);
}
const char *n = entry->getName();
if (n) {
name.appendFormat("%*s%s", (int)std::max(14 - name.length(), (size_t)1), "", n);
}
android::String8 size("");
size.appendFormat("%zu", entry->getSizes());
format_line(output, name, size, pruned);
}
}
*buf = strdup(output.string());
}
void LogStatistics::format(char **buf, uid_t uid, unsigned int logMask) {
static const unsigned short spaces_total = 19;
if (*buf) {
free(*buf);
*buf = NULL;
}
// Report on total logging, current and for all time
android::String8 output("size/num");
size_t oldLength;
short spaces = 1;
log_id_for_each(id) {
if (!(logMask & (1 << id))) {
continue;
}
oldLength = output.length();
if (spaces < 0) {
spaces = 0;
}
output.appendFormat("%*s%s", spaces, "", android_log_id_to_name(id));
spaces += spaces_total + oldLength - output.length();
}
spaces = 4;
output.appendFormat("\nTotal");
log_id_for_each(id) {
if (!(logMask & (1 << id))) {
continue;
}
oldLength = output.length();
if (spaces < 0) {
spaces = 0;
}
output.appendFormat("%*s%zu/%zu", spaces, "",
sizesTotal(id), elementsTotal(id));
spaces += spaces_total + oldLength - output.length();
}
spaces = 6;
output.appendFormat("\nNow");
log_id_for_each(id) {
if (!(logMask & (1 << id))) {
continue;
}
size_t els = elements(id);
if (els) {
oldLength = output.length();
if (spaces < 0) {
spaces = 0;
}
output.appendFormat("%*s%zu/%zu", spaces, "", sizes(id), els);
spaces -= output.length() - oldLength;
}
spaces += spaces_total;
}
// Report on Chattiest
// Chattiest by application (UID)
static const size_t maximum_sorted_entries = 32;
log_id_for_each(id) {
if (!(logMask & (1 << id))) {
continue;
}
bool headerPrinted = false;
std::unique_ptr<const UidEntry *[]> sorted = sort(maximum_sorted_entries, id);
ssize_t index = -1;
while ((index = uidTable_t::next(index, sorted, maximum_sorted_entries)) >= 0) {
const UidEntry *entry = sorted[index];
uid_t u = entry->getKey();
if ((uid != AID_ROOT) && (u != uid)) {
continue;
}
if (!headerPrinted) {
if (uid == AID_ROOT) {
output.appendFormat(
"\n\nChattiest UIDs in %s:\n",
android_log_id_to_name(id));
} else {
output.appendFormat(
"\n\nLogging for your UID in %s:\n",
android_log_id_to_name(id));
}
android::String8 name("UID");
android::String8 size("Size");
android::String8 pruned("Pruned");
if (!worstUidEnabledForLogid(id)) {
pruned.setTo("");
}
format_line(output, name, size, pruned);
headerPrinted = true;
}
android::String8 name("");
name.appendFormat("%u", u);
char *n = uidToName(u);
if (n) {
name.appendFormat("%*s%s", (int)std::max(6 - name.length(), (size_t)1), "", n);
free(n);
}
android::String8 size("");
size.appendFormat("%zu", entry->getSizes());
android::String8 pruned("");
size_t dropped = entry->getDropped();
if (dropped) {
pruned.appendFormat("%zu", dropped);
}
format_line(output, name, size, pruned);
}
}
if (enable) {
bool headerPrinted = false;
std::unique_ptr<const PidEntry *[]> sorted = pidTable.sort(maximum_sorted_entries);
ssize_t index = -1;
while ((index = pidTable.next(index, sorted, maximum_sorted_entries)) >= 0) {
const PidEntry *entry = sorted[index];
uid_t u = entry->getUid();
if ((uid != AID_ROOT) && (u != uid)) {
continue;
}
if (!headerPrinted) {
if (uid == AID_ROOT) {
output.appendFormat("\n\nChattiest PIDs:\n");
} else {
output.appendFormat("\n\nLogging for this PID:\n");
}
android::String8 name(" PID/UID");
android::String8 size("Size");
android::String8 pruned("Pruned");
format_line(output, name, size, pruned);
headerPrinted = true;
}
android::String8 name("");
name.appendFormat("%5u/%u", entry->getKey(), u);
const char *n = entry->getName();
if (n) {
name.appendFormat("%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", n);
} else {
char *un = uidToName(u);
if (un) {
name.appendFormat("%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", un);
free(un);
}
}
android::String8 size("");
size.appendFormat("%zu", entry->getSizes());
android::String8 pruned("");
size_t dropped = entry->getDropped();
if (dropped) {
pruned.appendFormat("%zu", dropped);
}
format_line(output, name, size, pruned);
}
}
*buf = strdup(output.string());
}
void LogStatistics::format(char **buf,
uid_t uid, unsigned int logMask, log_time oldest) {
static const unsigned short spaces_current = 13;
static const unsigned short spaces_total = 19;
if (*buf) {
free(*buf);
*buf = NULL;
}
android::String8 string(" span -> size/num");
size_t oldLength;
short spaces = 2;
log_id_for_each(i) {
if (!(logMask & (1 << i))) {
continue;
}
oldLength = string.length();
if (spaces < 0) {
spaces = 0;
}
string.appendFormat("%*s%s", spaces, "", android_log_id_to_name(i));
spaces += spaces_total + oldLength - string.length();
LidStatistics &l = id(i);
l.sort();
UidStatisticsCollection::iterator iu;
for (iu = l.begin(); iu != l.end(); ++iu) {
(*iu)->sort();
}
}
spaces = 1;
log_time t(CLOCK_MONOTONIC);
unsigned long long d;
if (mStatistics) {
d = t.nsec() - start.nsec();
string.appendFormat("\nTotal%4llu:%02llu:%02llu.%09llu",
d / NS_PER_SEC / 60 / 60, (d / NS_PER_SEC / 60) % 60,
(d / NS_PER_SEC) % 60, d % NS_PER_SEC);
log_id_for_each(i) {
if (!(logMask & (1 << i))) {
continue;
}
oldLength = string.length();
if (spaces < 0) {
spaces = 0;
}
string.appendFormat("%*s%zu/%zu", spaces, "",
sizesTotal(i), elementsTotal(i));
spaces += spaces_total + oldLength - string.length();
}
spaces = 1;
}
d = t.nsec() - oldest.nsec();
string.appendFormat("\nNow%6llu:%02llu:%02llu.%09llu",
d / NS_PER_SEC / 60 / 60, (d / NS_PER_SEC / 60) % 60,
(d / NS_PER_SEC) % 60, d % NS_PER_SEC);
log_id_for_each(i) {
if (!(logMask & (1 << i))) {
continue;
}
size_t els = elements(i);
if (els) {
oldLength = string.length();
if (spaces < 0) {
spaces = 0;
}
string.appendFormat("%*s%zu/%zu", spaces, "", sizes(i), els);
spaces -= string.length() - oldLength;
}
spaces += spaces_total;
}
// Construct list of worst spammers by Pid
static const unsigned char num_spammers = 10;
bool header = false;
log_id_for_each(i) {
if (!(logMask & (1 << i))) {
continue;
}
PidStatisticsCollection pids;
pids.clear();
LidStatistics &l = id(i);
UidStatisticsCollection::iterator iu;
for (iu = l.begin(); iu != l.end(); ++iu) {
UidStatistics &u = *(*iu);
PidStatisticsCollection::iterator ip;
for (ip = u.begin(); ip != u.end(); ++ip) {
PidStatistics *p = (*ip);
if (p->getPid() == p->gone) {
break;
}
size_t mySizes = p->sizes();
PidStatisticsCollection::iterator q;
unsigned char num = 0;
for (q = pids.begin(); q != pids.end(); ++q) {
if (mySizes > (*q)->sizes()) {
pids.insert(q, p);
break;
}
// do we need to traverse deeper in the list?
if (++num > num_spammers) {
break;
}
}
if (q == pids.end()) {
pids.push_back(p);
}
}
}
size_t threshold = sizes(i);
if (threshold < 65536) {
threshold = 65536;
}
threshold /= 100;
PidStatisticsCollection::iterator pt = pids.begin();
for(int line = 0;
(pt != pids.end()) && (line < num_spammers);
++line, pt = pids.erase(pt)) {
PidStatistics *p = *pt;
size_t sizes = p->sizes();
if (sizes < threshold) {
break;
}
char *name = p->getName();
pid_t pid = p->getPid();
if (!name || !*name) {
name = pidToName(pid);
if (name) {
if (*name) {
p->setName(name);
} else {
free(name);
name = NULL;
}
}
}
if (!header) {
string.appendFormat("\n\nChattiest clients:\n"
"log id %-*s PID[?] name",
spaces_total, "size/total");
header = true;
}
size_t sizesTotal = p->sizesTotal();
android::String8 sz("");
sz.appendFormat((sizes != sizesTotal) ? "%zu/%zu" : "%zu",
sizes, sizesTotal);
android::String8 pd("");
pd.appendFormat("%u%c", pid, p->pidGone() ? '?' : ' ');
string.appendFormat("\n%-7s%-*s %-7s%s",
line ? "" : android_log_id_to_name(i),
spaces_total, sz.string(), pd.string(),
name ? name : "");
}
pids.clear();
}
if (dgramQlenStatistics) {
const unsigned short spaces_time = 6;
const unsigned long long max_seconds = 100000;
spaces = 0;
string.append("\n\nMinimum time between log events per max_dgram_qlen:\n");
for(unsigned short i = 0; dgramQlen(i); ++i) {
oldLength = string.length();
if (spaces < 0) {
spaces = 0;
}
string.appendFormat("%*s%u", spaces, "", dgramQlen(i));
spaces += spaces_time + oldLength - string.length();
}
string.append("\n");
spaces = 0;
unsigned short n;
for(unsigned short i = 0; (n = dgramQlen(i)); ++i) {
unsigned long long duration = minimum(i);
if (duration) {
duration /= n;
if (duration >= (NS_PER_SEC * max_seconds)) {
duration = NS_PER_SEC * (max_seconds - 1);
}
oldLength = string.length();
if (spaces < 0) {
spaces = 0;
}
string.appendFormat("%*s", spaces, "");
if (duration >= (NS_PER_SEC * 10)) {
string.appendFormat("%llu",
(duration + (NS_PER_SEC / 2))
/ NS_PER_SEC);
} else if (duration >= (NS_PER_SEC / (1000 / 10))) {
string.appendFormat("%llum",
(duration + (NS_PER_SEC / 2 / 1000))
/ (NS_PER_SEC / 1000));
} else if (duration >= (NS_PER_SEC / (1000000 / 10))) {
string.appendFormat("%lluu",
(duration + (NS_PER_SEC / 2 / 1000000))
/ (NS_PER_SEC / 1000000));
} else {
string.appendFormat("%llun", duration);
}
spaces -= string.length() - oldLength;
}
spaces += spaces_time;
}
}
log_id_for_each(i) {
if (!(logMask & (1 << i))) {
continue;
}
header = false;
bool first = true;
UidStatisticsCollection::iterator ut;
for(ut = id(i).begin(); ut != id(i).end(); ++ut) {
UidStatistics *up = *ut;
if ((uid != AID_ROOT) && (uid != up->getUid())) {
continue;
}
PidStatisticsCollection::iterator pt = up->begin();
if (pt == up->end()) {
continue;
}
android::String8 intermediate;
if (!header) {
// header below tuned to match spaces_total and spaces_current
spaces = 0;
intermediate = string.format("%s: UID/PID Total size/num",
android_log_id_to_name(i));
string.appendFormat("\n\n%-31sNow "
"UID/PID[?] Total Now",
intermediate.string());
intermediate.clear();
header = true;
}
bool oneline = ++pt == up->end();
--pt;
if (!oneline) {
first = true;
} else if (!first && (spaces > 0)) {
string.appendFormat("%*s", spaces, "");
}
spaces = 0;
uid_t u = up->getUid();
PidStatistics *pp = *pt;
pid_t p = pp->getPid();
intermediate = string.format(oneline
? ((p == PidStatistics::gone)
? "%d/?"
: "%d/%d%c")
: "%d",
u, p, pp->pidGone() ? '?' : '\0');
string.appendFormat(first ? "\n%-12s" : "%-12s",
intermediate.string());
intermediate.clear();
size_t elsTotal = up->elementsTotal();
oldLength = string.length();
string.appendFormat("%zu/%zu", up->sizesTotal(), elsTotal);
spaces += spaces_total + oldLength - string.length();
size_t els = up->elements();
if (els == elsTotal) {
if (spaces < 0) {
spaces = 0;
}
string.appendFormat("%*s=", spaces, "");
spaces = -1;
} else if (els) {
oldLength = string.length();
if (spaces < 0) {
spaces = 0;
}
string.appendFormat("%*s%zu/%zu", spaces, "", up->sizes(), els);
spaces -= string.length() - oldLength;
}
spaces += spaces_current;
first = !first;
if (oneline) {
continue;
}
size_t gone_szs = 0;
size_t gone_els = 0;
for(; pt != up->end(); ++pt) {
pp = *pt;
p = pp->getPid();
// If a PID no longer has any current logs, and is not
// active anymore, skip & report totals for gone.
elsTotal = pp->elementsTotal();
size_t szsTotal = pp->sizesTotal();
if (p == pp->gone) {
gone_szs += szsTotal;
gone_els += elsTotal;
continue;
}
els = pp->elements();
bool gone = pp->pidGone();
if (gone && (els == 0)) {
// ToDo: garbage collection: move this statistical bucket
// from its current UID/PID to UID/? (races and
// wrap around are our achilles heel). Below is
// merely lipservice to catch PIDs that were still
// around when the stats were pruned to zero.
gone_szs += szsTotal;
gone_els += elsTotal;
continue;
}
if (!first && (spaces > 0)) {
string.appendFormat("%*s", spaces, "");
}
spaces = 0;
intermediate = string.format(gone ? "%d/%d?" : "%d/%d", u, p);
string.appendFormat(first ? "\n%-12s" : "%-12s",
intermediate.string());
intermediate.clear();
oldLength = string.length();
string.appendFormat("%zu/%zu", szsTotal, elsTotal);
spaces += spaces_total + oldLength - string.length();
if (els == elsTotal) {
if (spaces < 0) {
spaces = 0;
}
string.appendFormat("%*s=", spaces, "");
spaces = -1;
} else if (els) {
oldLength = string.length();
if (spaces < 0) {
spaces = 0;
}
string.appendFormat("%*s%zu/%zu", spaces, "",
pp->sizes(), els);
spaces -= string.length() - oldLength;
}
spaces += spaces_current;
first = !first;
}
if (gone_els) {
if (!first && (spaces > 0)) {
string.appendFormat("%*s", spaces, "");
}
intermediate = string.format("%d/?", u);
string.appendFormat(first ? "\n%-12s" : "%-12s",
intermediate.string());
intermediate.clear();
spaces = spaces_total + spaces_current;
oldLength = string.length();
string.appendFormat("%zu/%zu", gone_szs, gone_els);
spaces -= string.length() - oldLength;
first = !first;
}
}
}
*buf = strdup(string.string());
}
