void CBatchedLogger::Flush()
{
if (!accept || msg.empty()) {
return;
}
LogPrintStr(strprintf("%s:\n%s", header, msg));
msg.clear();
}
// This code is adapted from posix_logger.h, which is why it is using vsprintf.
// Please do not do this in normal code
virtual void Logv(const char * format, va_list ap) override {
if (!LogAcceptCategory(BCLog::LEVELDB)) {
return;
}
char buffer[500];
for (int iter = 0; iter < 2; iter++) {
char* base;
int bufsize;
if (iter == 0) {
bufsize = sizeof(buffer);
base = buffer;
}
else {
bufsize = 30000;
base = new char[bufsize];
}
char* p = base;
char* limit = base + bufsize;
// Print the message
if (p < limit) {
va_list backup_ap;
va_copy(backup_ap, ap);
// Do not use vsnprintf elsewhere in wificoin source code, see above.
p += vsnprintf(p, limit - p, format, backup_ap);
va_end(backup_ap);
}
// Truncate to available space if necessary
if (p >= limit) {
if (iter == 0) {
continue; // Try again with larger buffer
}
else {
p = limit - 1;
}
}
// Add newline if necessary
if (p == base || p[-1] != '\n') {
*p++ = '\n';
}
assert(p <= limit);
base[std::min(bufsize - 1, (int)(p - base))] = '\0';
LogPrintStr(base);
if (base != buffer) {
delete[] base;
}
break;
}
}
