unsigned long httpfetch_caller_alloc_secure()
{
MutexAutoLock lock(g_httpfetch_mutex);
// Generate random caller IDs and make sure they're not
// already used or equal to HTTPFETCH_DISCARD
// Give up after 100 tries to prevent infinite loop
u8 tries = 100;
unsigned long caller;
do {
caller = (((u64) g_callerid_randomness.next()) << 32) |
g_callerid_randomness.next();
if (--tries < 1) {
FATAL_ERROR("httpfetch_caller_alloc_secure: ran out of caller IDs");
return HTTPFETCH_DISCARD;
}
} while (g_httpfetch_results.find(caller) != g_httpfetch_results.end());
verbosestream << "httpfetch_caller_alloc_secure: allocating "
<< caller << std::endl;
// Access element to create it
g_httpfetch_results[caller];
return caller;
}
u32 myrand()
{
return g_pcgrand.next();
}