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MXS-1775 Change MonitorInstance::configure() prototype

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Now return boolean, to allow derived class to signal a failure
to configure.
This commit is contained in:
Johan Wikman
2018-05-25 14:06:06 +03:00
parent 0783af88ed
commit 9b7e37e112
12 changed files with 45 additions and 32 deletions
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8
include/maxscale/monitor.hh
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@ -80,9 +80,13 @@ protected:
*
* When the monitor is started, this function will be called in order
* to allow the concrete implementation to configure itself from
* configuration parameters. The default implementation does nothing.
* configuration parameters. The default implementation returns true.
*
* @return True, if the monitor could be configured, false otherwise.
*
* @note If false is returned, then the monitor will not be started.
*/
virtual void configure(const MXS_CONFIG_PARAMETER* pParams);
virtual bool configure(const MXS_CONFIG_PARAMETER* pParams);
/**
* @brief Check whether the monitor has sufficient rights

14
server/core/monitor.cc
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@ -2599,8 +2599,8 @@ bool MonitorInstance::start(const MXS_CONFIG_PARAMETER* pParams)
m_events = config_get_enum(pParams, "events", mxs_monitor_event_enum_values);
m_master = NULL;
configure(pParams);
if (configure(pParams))
{
if (thread_start(&m_thread, &maxscale::MonitorInstance::main, this, 0) == NULL)
{
MXS_ERROR("Failed to start monitor thread for monitor '%s'.", m_monitor->name);
@ -2622,19 +2622,21 @@ bool MonitorInstance::start(const MXS_CONFIG_PARAMETER* pParams)
}
}
}
}
return started;
}
bool MonitorInstance::configure(const MXS_CONFIG_PARAMETER* pParams)
{
return true;
}
bool MonitorInstance::has_sufficient_permissions() const
{
return true;
}
void MonitorInstance::configure(const MXS_CONFIG_PARAMETER* pParams)
{
}
void MonitorInstance::flush_server_status()
{
for (MXS_MONITORED_SERVER *pMs = m_monitor->monitored_servers; pMs; pMs = pMs->next)

3
server/modules/monitor/auroramon/auroramon.cc
View File

@ -49,8 +49,9 @@ json_t* AuroraMonitor::diagnostics_json() const
return NULL;
}
void AuroraMonitor::configure(const MXS_CONFIG_PARAMETER* params)
bool AuroraMonitor::configure(const MXS_CONFIG_PARAMETER* params)
{
return true;
}
bool AuroraMonitor::has_sufficient_permissions() const

2
server/modules/monitor/auroramon/auroramon.hh
View File

@ -32,7 +32,7 @@ public:
json_t* diagnostics_json() const;
protected:
void configure(const MXS_CONFIG_PARAMETER* params);
bool configure(const MXS_CONFIG_PARAMETER* params);
bool has_sufficient_permissions() const;
void update_server_status(MXS_MONITORED_SERVER* monitored_server);

4
server/modules/monitor/galeramon/galeramon.cc
View File

@ -130,7 +130,7 @@ json_t* GaleraMonitor::diagnostics_json() const
return rval;
}
void GaleraMonitor::configure(const MXS_CONFIG_PARAMETER* params)
bool GaleraMonitor::configure(const MXS_CONFIG_PARAMETER* params)
{
m_disableMasterFailback = config_get_bool(params, "disable_master_failback");
m_availableWhenDonor = config_get_bool(params, "available_when_donor");
@ -142,6 +142,8 @@ void GaleraMonitor::configure(const MXS_CONFIG_PARAMETER* params)
/* Reset all data in the hashtable */
reset_cluster_info();
return true;
}
bool GaleraMonitor::has_sufficient_permissions() const

2
server/modules/monitor/galeramon/galeramon.hh
View File

@ -64,7 +64,7 @@ public:
json_t* diagnostics_json() const;
protected:
void configure(const MXS_CONFIG_PARAMETER* param);
bool configure(const MXS_CONFIG_PARAMETER* param);
bool has_sufficient_permissions() const;
void update_server_status(MXS_MONITORED_SERVER* monitored_server);
void tick();

3
server/modules/monitor/grmon/grmon.cc
View File

@ -49,8 +49,9 @@ json_t* GRMon::diagnostics_json() const
return NULL;
}
void GRMon::configure(const MXS_CONFIG_PARAMETER* params)
bool GRMon::configure(const MXS_CONFIG_PARAMETER* params)
{
return true;
}
bool GRMon::has_sufficient_permissions() const

2
server/modules/monitor/grmon/grmon.hh
View File

@ -32,7 +32,7 @@ public:
json_t* diagnostics_json() const;
protected:
void configure(const MXS_CONFIG_PARAMETER* params);
bool configure(const MXS_CONFIG_PARAMETER* params);
bool has_sufficient_permissions() const;
void update_server_status(MXS_MONITORED_SERVER* monitored_server);

4
server/modules/monitor/mmmon/mmmon.cc
View File

@ -64,9 +64,11 @@ json_t* MMMonitor::diagnostics_json() const
return rval;
}
void MMMonitor::configure(const MXS_CONFIG_PARAMETER* params)
bool MMMonitor::configure(const MXS_CONFIG_PARAMETER* params)
{
m_detectStaleMaster = config_get_bool(params, "detect_stale_master");
return true;
}
bool MMMonitor::has_sufficient_permissions() const

2
server/modules/monitor/mmmon/mmmon.hh
View File

@ -32,7 +32,7 @@ public:
json_t* diagnostics_json() const;
protected:
void configure(const MXS_CONFIG_PARAMETER* params);
bool configure(const MXS_CONFIG_PARAMETER* params);
bool has_sufficient_permissions() const;
void update_server_status(MXS_MONITORED_SERVER* monitored_server);
void tick();

3
server/modules/monitor/ndbclustermon/ndbclustermon.cc
View File

@ -47,8 +47,9 @@ json_t* NDBCMonitor::diagnostics_json() const
return NULL;
}
void NDBCMonitor::configure(const MXS_CONFIG_PARAMETER* params)
bool NDBCMonitor::configure(const MXS_CONFIG_PARAMETER* params)
{
return true;
}
bool NDBCMonitor::has_sufficient_permissions() const

2
server/modules/monitor/ndbclustermon/ndbclustermon.hh
View File

@ -32,7 +32,7 @@ public:
json_t* diagnostics_json() const;
protected:
void configure(const MXS_CONFIG_PARAMETER* params);
bool configure(const MXS_CONFIG_PARAMETER* params);
bool has_sufficient_permissions() const;
void update_server_status(MXS_MONITORED_SERVER* monitored_server);