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MXS-1780 Store time when statement was received

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This commit is contained in:
Johan Wikman
2018-11-05 19:46:59 +02:00
parent c6378e1006
commit c78c5a615d
2 changed files with 62 additions and 14 deletions
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20
server/core/internal/session.hh
View File

@ -39,7 +39,6 @@ typedef struct SESSION_VARIABLE
} SESSION_VARIABLE;
typedef std::unordered_map<std::string, SESSION_VARIABLE> SessionVarsByName;
typedef std::deque<std::shared_ptr<GWBUF>> SessionStmtQueue;
typedef std::unordered_set<DCB*> DCBSet;
// Class that holds the session specific filter data
@ -62,6 +61,25 @@ public:
class Session : public MXS_SESSION
{
public:
class StatementInfo
{
public:
StatementInfo(const std::shared_ptr<GWBUF>& sStatement);
json_t* as_json() const;
const std::shared_ptr<GWBUF>& statement() const
{
return m_sStatement;
}
private:
std::shared_ptr<GWBUF> m_sStatement;
timespec m_received;
};
typedef std::deque<StatementInfo> SessionStmtQueue;
using FilterList = std::vector<SessionFilter>;
~Session();

56
server/core/session.cc
View File

@ -1230,7 +1230,8 @@ void Session::dump_statements() const
for (auto i = m_last_statements.rbegin(); i != m_last_statements.rend(); ++i)
{
const std::shared_ptr<GWBUF>& sBuffer = *i;
const StatementInfo& info = *i;
const std::shared_ptr<GWBUF>& sBuffer = info.statement();
char* pStmt;
int len;
@ -1264,18 +1265,9 @@ json_t* Session::statements_as_json() const
for (auto i = m_last_statements.rbegin(); i != m_last_statements.rend(); ++i)
{
const std::shared_ptr<GWBUF>& sBuffer = *i;
const StatementInfo& info = *i;
char* pStmt;
int len;
bool deallocate = get_stmt(sBuffer.get(), &pStmt, &len);
json_array_append_new(pStatements, json_stringn(pStmt, len));
if (deallocate)
{
MXS_FREE(pStmt);
}
json_array_append_new(pStatements, info.as_json());
}
return pStatements;
@ -1457,8 +1449,46 @@ void Session::retain_statement(GWBUF* pBuffer)
std::shared_ptr<GWBUF> sBuffer(gwbuf_clone(pBuffer));
m_last_statements.push_front(sBuffer);
m_last_statements.push_front(StatementInfo(sBuffer));
}
}
}
}
Session::StatementInfo::StatementInfo(const std::shared_ptr<GWBUF>& sStatement)
: m_sStatement(sStatement)
{
clock_gettime(CLOCK_REALTIME, &m_received);
}
json_t* Session::StatementInfo::as_json() const
{
json_t* pInfo = json_object();
char* pStmt;
int len;
bool deallocate = get_stmt(m_sStatement.get(), &pStmt, &len);
json_object_set_new(pInfo, "statement", json_stringn(pStmt, len));
if (deallocate)
{
MXS_FREE(pStmt);
}
tm tm;
gmtime_r(&m_received.tv_sec, &tm);
static const char ISO_TEMPLATE[] = "2018-11-05T16:47:49.123456789";
static const int ISO_TIME_LEN = sizeof(ISO_TEMPLATE) - 1;
char iso_time[ISO_TIME_LEN + 1];
size_t i = strftime(iso_time, sizeof(iso_time), "%G-%m-%dT%H:%M:%S", &tm);
mxb_assert(i == 19);
i = sprintf(iso_time + i, ".%09ld", m_received.tv_nsec);
mxb_assert(i == 10);
json_object_set_new(pInfo, "received", json_stringn(iso_time, ISO_TIME_LEN));
return pInfo;
}