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Remove duplicate monitor state definitions

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The state is still stored in two different variables. Also, removed the
ALLOC and FREED states.
This commit is contained in:
Esa Korhonen
2018-08-14 18:40:08 +03:00
parent 876cf7c86f
commit fe5df6d379
4 changed files with 21 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
include/maxscale/monitor.h
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@ -159,25 +159,17 @@ typedef enum monitor_capability
/** Monitor's poll frequency */
#define MXS_MON_BASE_INTERVAL_MS 100
#define MXS_MONITOR_RUNNING 1
#define MXS_MONITOR_STOPPING 2
#define MXS_MONITOR_STOPPED 3
#define MXS_MONITOR_DEFAULT_ID 1UL // unsigned long value
#define MAX_MONITOR_USER_LEN 512
#define MAX_MONITOR_PASSWORD_LEN 512
/**
* Monitor state bit mask values
*/
// Monitor state enum
typedef enum
{
MONITOR_STATE_ALLOC = 0x00,
MONITOR_STATE_RUNNING = 0x01,
MONITOR_STATE_STOPPING = 0x02,
MONITOR_STATE_STOPPED = 0x04,
MONITOR_STATE_FREED = 0x08
MONITOR_STATE_RUNNING,
MONITOR_STATE_STOPPING,
MONITOR_STATE_STOPPED
} monitor_state_t;
/* Return type of mon_ping_or_connect_to_db(). */

2
include/maxscale/monitor.hh
View File

@ -52,7 +52,7 @@ public:
*/
bool is_running() const
{
return state() == MXS_MONITOR_RUNNING;
return state() == MONITOR_STATE_RUNNING;
}
/**

54
server/core/monitor.cc
View File

@ -83,6 +83,7 @@ static SPINLOCK monLock = SPINLOCK_INIT;
static void monitor_server_free_all(MXS_MONITORED_SERVER *servers);
static void remove_server_journal(MXS_MONITOR *monitor);
static bool journal_is_stale(MXS_MONITOR *monitor, time_t max_age);
static const char* monitor_state_to_string(monitor_state_t state);
/** Server type specific bits */
static uint64_t server_type_bits = SERVER_MASTER | SERVER_SLAVE | SERVER_JOINED | SERVER_NDB;
@ -123,7 +124,7 @@ MXS_MONITOR* monitor_create(const char *name, const char *module, MXS_CONFIG_PAR
mon->api = api;
mon->active = true;
mon->state = MONITOR_STATE_ALLOC;
mon->state = MONITOR_STATE_STOPPED;
mon->name = my_name;
mon->module_name = my_module;
mon->monitored_servers = NULL;
@ -203,7 +204,6 @@ monitor_destroy(MXS_MONITOR *mon)
}
spinlock_release(&monLock);
mon->api->destroyInstance(mon->instance);
mon->state = MONITOR_STATE_FREED;
delete mon->disk_space_threshold;
config_parameter_free(mon->parameters);
monitor_server_free_all(mon->monitored_servers);
@ -237,8 +237,8 @@ monitor_start(MXS_MONITOR *monitor, const MXS_CONFIG_PARAMETER* params)
{
spinlock_acquire(&monitor->lock);
// Only start the monitor if it's newly created or currently stopped.
if (monitor->state == MONITOR_STATE_ALLOC || monitor->state == MONITOR_STATE_STOPPED)
// Only start the monitor if it's stopped.
if (monitor->state == MONITOR_STATE_STOPPED)
{
if (journal_is_stale(monitor, monitor->journal_max_age))
{
@ -538,30 +538,9 @@ monitor_show_all(DCB *dcb)
void
monitor_show(DCB *dcb, MXS_MONITOR *monitor)
{
const char *state;
switch (monitor->state)
{
case MONITOR_STATE_RUNNING:
state = "Running";
break;
case MONITOR_STATE_STOPPING:
state = "Stopping";
break;
case MONITOR_STATE_STOPPED:
state = "Stopped";
break;
case MONITOR_STATE_ALLOC:
state = "Allocated";
break;
default:
state = "Unknown";
break;
}
dcb_printf(dcb, "Monitor: %p\n", monitor);
dcb_printf(dcb, "Name: %s\n", monitor->name);
dcb_printf(dcb, "State: %s\n", state);
dcb_printf(dcb, "State: %s\n", monitor_state_to_string(monitor->state));
dcb_printf(dcb, "Times monitored: %lu\n", monitor->ticks);
dcb_printf(dcb, "Sampling interval: %lu milliseconds\n", monitor->interval);
dcb_printf(dcb, "Connect Timeout: %i seconds\n", monitor->connect_timeout);
@ -1774,7 +1753,7 @@ void mon_process_state_changes(MXS_MONITOR *monitor, const char *script, uint64_
}
}
static const char* monitor_state_to_string(int state)
static const char* monitor_state_to_string(monitor_state_t state)
{
switch (state)
{
@ -1787,9 +1766,6 @@ static const char* monitor_state_to_string(int state)
case MONITOR_STATE_STOPPED:
return "Stopped";
case MONITOR_STATE_ALLOC:
return "Allocated";
default:
ss_dassert(false);
return "Unknown";
@ -2480,7 +2456,7 @@ namespace maxscale
MonitorInstance::MonitorInstance(MXS_MONITOR* pMonitor)
: m_monitor(pMonitor)
, m_master(NULL)
, m_state(MXS_MONITOR_STOPPED)
, m_state(MONITOR_STATE_STOPPED)
, m_shutdown(0)
, m_checked(false)
, m_loop_called(0)
@ -2499,14 +2475,14 @@ int32_t MonitorInstance::state() const
void MonitorInstance::stop()
{
// This is always called in single-thread context.
ss_dassert(m_state == MXS_MONITOR_RUNNING);
ss_dassert(m_state == MONITOR_STATE_RUNNING);
if (state() == MXS_MONITOR_RUNNING)
if (state() == MONITOR_STATE_RUNNING)
{
atomic_store_int32(&m_state, MXS_MONITOR_STOPPING);
atomic_store_int32(&m_state, MONITOR_STATE_STOPPING);
Worker::shutdown();
Worker::join();
atomic_store_int32(&m_state, MXS_MONITOR_STOPPED);
atomic_store_int32(&m_state, MONITOR_STATE_STOPPED);
}
else
{
@ -2528,9 +2504,9 @@ bool MonitorInstance::start(const MXS_CONFIG_PARAMETER* pParams)
bool started = false;
ss_dassert(Worker::state() == Worker::STOPPED);
ss_dassert(m_state == MXS_MONITOR_STOPPED);
ss_dassert(m_state == MONITOR_STATE_STOPPED);
if (state() == MXS_MONITOR_STOPPED)
if (state() == MONITOR_STATE_STOPPED)
{
if (!m_checked)
{
@ -2562,7 +2538,7 @@ bool MonitorInstance::start(const MXS_CONFIG_PARAMETER* pParams)
// state has been updated.
m_semaphore.wait();
started = (atomic_load_int32(&m_state) == MXS_MONITOR_RUNNING);
started = (atomic_load_int32(&m_state) == MONITOR_STATE_RUNNING);
if (!started)
{
@ -2866,7 +2842,7 @@ bool MonitorInstance::pre_run()
{
rv = true;
atomic_store_int32(&m_state, MXS_MONITOR_RUNNING);
atomic_store_int32(&m_state, MONITOR_STATE_RUNNING);
m_semaphore.post();
load_server_journal(m_monitor, &m_master);

2
server/modules/monitor/mariadbmon/mariadbmon.cc
View File

@ -1014,7 +1014,7 @@ bool MariaDBMonitor::check_sql_files()
bool MariaDBMonitor::execute_manual_command(std::function<void (void)> command, json_t** error_out)
{
bool rval = false;
if (state() != MXS_MONITOR_RUNNING)
if (state() != MONITOR_STATE_RUNNING)
{
PRINT_MXS_JSON_ERROR(error_out, "The monitor is not running, cannot execute manual command.");
}