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rpc: Add getmemoryinfo call

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```
getmemoryinfo
Returns an object containing information about memory usage.

Result:
{
  "locked": {               (json object) Information about locked memory manager
    "used": xxxxx,          (numeric) Number of bytes used
    "free": xxxxx,          (numeric) Number of bytes available in current arenas
    "total": xxxxxxx,       (numeric) Total number of bytes managed
    "locked": xxxxxx,       (numeric) Amount of bytes that succeeded locking. If this number is smaller than total, locking pages failed at some point and key data could be swapped to disk.
  }
}

Examples:
> bitcoin-cli getmemoryinfo
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getmemoryinfo", "params": [] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/
```
This commit is contained in:
Wladimir J. van der Laan 2016-09-18 10:22:30 +02:00
parent 4536148b15
commit 6567999096
1 changed files with 43 additions and 0 deletions
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43
src/rpc/misc.cpp
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@ -450,10 +450,53 @@ UniValue setmocktime(const JSONRPCRequest& request)
return NullUniValue;
}
static UniValue RPCLockedMemoryInfo()
{
LockedPool::Stats stats = LockedPoolManager::Instance().stats();
UniValue obj(UniValue::VOBJ);
obj.push_back(Pair("used", uint64_t(stats.used)));
obj.push_back(Pair("free", uint64_t(stats.free)));
obj.push_back(Pair("total", uint64_t(stats.total)));
obj.push_back(Pair("locked", uint64_t(stats.locked)));
obj.push_back(Pair("chunks_used", uint64_t(stats.chunks_used)));
obj.push_back(Pair("chunks_free", uint64_t(stats.chunks_free)));
return obj;
}
UniValue getmemoryinfo(const JSONRPCRequest& request)
{
/* Please, avoid using the word "pool" here in the RPC interface or help,
* as users will undoubtedly confuse it with the other "memory pool"
*/
if (request.fHelp || request.params.size() != 0)
throw runtime_error(
"getmemoryinfo\n"
"Returns an object containing information about memory usage.\n"
"\nResult:\n"
"{\n"
" \"locked\": { (json object) Information about locked memory manager\n"
" \"used\": xxxxx, (numeric) Number of bytes used\n"
" \"free\": xxxxx, (numeric) Number of bytes available in current arenas\n"
" \"total\": xxxxxxx, (numeric) Total number of bytes managed\n"
" \"locked\": xxxxxx, (numeric) Amount of bytes that succeeded locking. If this number is smaller than total, locking pages failed at some point and key data could be swapped to disk.\n"
" \"chunks_used\": xxxxx, (numeric) Number allocated chunks\n"
" \"chunks_free\": xxxxx, (numeric) Number unused chunks\n"
" }\n"
"}\n"
"\nExamples:\n"
+ HelpExampleCli("getmemoryinfo", "")
+ HelpExampleRpc("getmemoryinfo", "")
);
UniValue obj(UniValue::VOBJ);
obj.push_back(Pair("locked", RPCLockedMemoryInfo()));
return obj;
}
static const CRPCCommand commands[] =
{ // category name actor (function) okSafeMode
// --------------------- ------------------------ ----------------------- ----------
{ "control", "getinfo", &getinfo, true }, /* uses wallet if enabled */
{ "control", "getmemoryinfo", &getmemoryinfo, true },
{ "util", "validateaddress", &validateaddress, true }, /* uses wallet if enabled */
{ "util", "createmultisig", &createmultisig, true },
{ "util", "verifymessage", &verifymessage, true },