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#include <GenericDisplay.h>
#include <Display.h>
#include <DrbdMon.h>
const char* Display::ANSI_CLEAR = "\x1b[f\x1b[0J\x1b[f";
const char* Display::ANSI_CLEAR_LINE = "\x1b[K";
// Format of the header line
const char* Display::FORMAT_HEADER = "\x1b[1;37;44m";
// Resource formats
const char* Display::RES_LABEL = "\x1b[0;30;42mRES:\x1b[0m";
const char* Display::RES_FORMAT_NAME = "\x1b[0;4;32m";
// Role formats
const char* Display::ROLE_LABEL = "\x1b[0m";
const char* Display::ROLE_FORMAT_PRIMARY = "\x1b[0;1;36m";
const char* Display::ROLE_FORMAT_SECONDARY = "\x1b[0;36m";
// Connection formats
const char* Display::CONN_LABEL = "\x1b[0;37;44mP:\x1b[0m";
const char* Display::CONN_FORMAT_NAME = "\x1b[0;4;37m";
const char* Display::CONN_FORMAT_NODE_ID = "\x1b[0m";
const char* Display::CONN_FORMAT_STATE_NORM = "\x1b[0;32m";
// Volume formats
const char* Display::VOL_LABEL = "\x1b[0;30;46mV:\x1b[0m";
const char* Display::VOL_LABEL_MINOR = "\x1b[0mminor #";
const char* Display::VOL_FORMAT_NR = "\x1b[0;32m";
const char* Display::VOL_FORMAT_MINOR = "\x1b[0;36m";
const char* Display::VOL_FORMAT_STATE_NORM = "\x1b[0;1;32m";
const char* Display::VOL_FORMAT_STATE_CLIENT = "\x1b[0;1;33;44m";
const char* Display::VOL_FORMAT_REPL_NORM = "\x1b[0;32m";
// Generic formats
const char* Display::FORMAT_WARN = "\x1b[0;30;43m";
const char* Display::FORMAT_ALERT = "\x1b[1;33;41m";
const char* Display::FORMAT_RESET = "\x1b[0m";
const uint16_t Display::MIN_SIZE_X = 40;
const uint16_t Display::MAX_SIZE_X = 1024;
const uint16_t Display::MIN_SIZE_Y = 15;
const uint16_t Display::MAX_SIZE_Y = 1024;
Display::Display(std::ostream& out_ref, ResourcesMap& resources_map_ref) :
resources_map(resources_map_ref),
out(out_ref)
{
}
void Display::clear()
{
out << ANSI_CLEAR;
}
void Display::initial_display()
{
clear();
out << "Reading initial DRBD status" << std::endl;
}
void Display::status_display()
{
clear();
if (show_header)
{
display_header();
}
list_resources();
}
void Display::display_header() const
{
if (show_header)
{
out << FORMAT_HEADER << ANSI_CLEAR_LINE <<
DrbdMon::PROGRAM_NAME << " v" << DrbdMon::VERSION
<< std::endl;
}
}
void Display::list_resources()
{
ResourcesMap::ValuesIterator iter(resources_map);
size_t count = iter.get_size();
for (size_t index = 0; index < count; ++index)
{
DrbdResource& res = *(iter.next());
DrbdRole::resource_role role = res.get_role();
const char* role_label = res.get_role_label();
const std::string& name = res.get_name();
const char* role_format = FORMAT_ALERT;
if (role == DrbdRole::resource_role::PRIMARY)
{
role_format = ROLE_FORMAT_PRIMARY;
}
else
if (role == DrbdRole::resource_role::SECONDARY)
{
role_format = ROLE_FORMAT_SECONDARY;
}
out << RES_LABEL << RES_FORMAT_NAME << std::left << std::setw(32) << name.c_str() <<
FORMAT_RESET << " " <<
role_format << std::setw(15) << role_label << FORMAT_RESET << std::endl;
list_volumes(res);
list_connections(res);
}
if (count == 0)
{
out << RES_FORMAT_NAME << "No active DRBD resources.\n" << std::endl;
}
}
void Display::list_connections(DrbdResource& res)
{
ConnectionsMap::ValuesIterator iter = res.connections_iterator();
size_t count = iter.get_size();
for (size_t index = 0; index < count; ++index)
{
DrbdConnection& conn = *(iter.next());
bool display_peer_volumes = true;
DrbdRole::resource_role role = conn.get_role();
DrbdConnection::state state = conn.get_connection_state();
const char* role_label = conn.get_role_label();
const char* state_label = conn.get_connection_state_label();
const std::string& name = conn.get_name();
const char* conn_format = FORMAT_ALERT;
if (state == DrbdConnection::state::CONNECTED)
{
conn_format = CONN_FORMAT_STATE_NORM;
}
// Do not display the list of peer volumes if it is not
// surprising that they are all in an unknown state
switch (state)
{
case DrbdConnection::state::NETWORK_FAILURE:
// fall-through
case DrbdConnection::state::PROTOCOL_ERROR:
// fall-through
case DrbdConnection::state::STANDALONE:
// fall-through
case DrbdConnection::state::TEAR_DOWN:
// fall-through
case DrbdConnection::state::CONNECTING:
// fall-through
case DrbdConnection::state::UNCONNECTED:
display_peer_volumes = false;
break;
case DrbdConnection::state::DISCONNECTING:
// fall-through
case DrbdConnection::state::TIMEOUT:
// fall-through
case DrbdConnection::state::BROKEN_PIPE:
// fall-through
case DrbdConnection::state::CONNECTED:
// fall-through
case DrbdConnection::state::UNKNOWN:
// fall-through
default:
break;
}
const char* role_format = FORMAT_ALERT;
if (role == DrbdRole::resource_role::PRIMARY)
{
role_format = ROLE_FORMAT_PRIMARY;
}
else
if (role == DrbdRole::resource_role::SECONDARY)
{
role_format = ROLE_FORMAT_SECONDARY;
}
else
{
// Do not mark an unknown role as an alert if
// the role is unknown because the network connection
// is faulty
switch (state)
{
case DrbdConnection::state::BROKEN_PIPE:
// fall-through
case DrbdConnection::state::DISCONNECTING:
// fall-through
case DrbdConnection::state::NETWORK_FAILURE:
// fall-through
case DrbdConnection::state::PROTOCOL_ERROR:
// fall-through
case DrbdConnection::state::TEAR_DOWN:
// fall-through
case DrbdConnection::state::TIMEOUT:
// fall-through
case DrbdConnection::state::UNCONNECTED:
role_format = FORMAT_WARN;
break;
case DrbdConnection::state::CONNECTING:
// fall-through
case DrbdConnection::state::STANDALONE:
role_format = ROLE_FORMAT_SECONDARY;
break;
case DrbdConnection::state::CONNECTED:
// fall-through
case DrbdConnection::state::UNKNOWN:
// fall-through
default:
// All other states are marked as an alert
break;
}
}
out << " " <<
CONN_LABEL << CONN_FORMAT_NAME << std::left << std::setw(20) << name.c_str() <<
FORMAT_RESET << " " <<
conn_format << std::left << std::setw(15) << state_label <<
FORMAT_RESET << " " <<
role_format << std::left << std::setw(10) << role_label <<
FORMAT_RESET << std::endl;
if (display_peer_volumes)
{
list_peer_volumes(conn);
}
}
}
void Display::list_volumes(DrbdResource& res)
{
VolumesMap::ValuesIterator iter = res.volumes_iterator();
size_t count = iter.get_size();
for (size_t index = 0; index < count; ++index)
{
DrbdVolume& vol = *(iter.next());
uint16_t vol_nr = vol.get_volume_nr();
int32_t minor_nr = vol.get_minor_nr();
DrbdVolume::disk_state disk_state = vol.get_disk_state();
const char* disk_label = vol.get_disk_state_label();
const char* disk_format = FORMAT_ALERT;
if (disk_state == DrbdVolume::disk_state::UP_TO_DATE)
{
disk_format = VOL_FORMAT_STATE_NORM;
}
else
if (disk_state == DrbdVolume::disk_state::DISKLESS)
{
disk_format = VOL_FORMAT_STATE_CLIENT;
}
out << " " <<
VOL_LABEL << VOL_FORMAT_NR <<
std::right << std::setw(2) << static_cast<long> (vol_nr) <<
FORMAT_RESET << " " <<
disk_format << std::left << std::setw(14) << disk_label <<
FORMAT_RESET << " " <<
VOL_LABEL_MINOR << VOL_FORMAT_MINOR << std::right << std::setw(4) << static_cast<long> (minor_nr) <<
FORMAT_RESET << std::endl;
}
}
void Display::list_peer_volumes(DrbdConnection& conn)
{
VolumesMap::ValuesIterator iter = conn.volumes_iterator();
size_t count = iter.get_size();
for (size_t index = 0; index < count; ++index)
{
DrbdVolume& vol = *(iter.next());
DrbdVolume::disk_state disk_state = vol.get_disk_state();
DrbdVolume::repl_state repl_state = vol.get_replication_state();
bool disk_state_norm = (disk_state == DrbdVolume::disk_state::UP_TO_DATE ||
disk_state == DrbdVolume::disk_state::DISKLESS);
bool repl_state_norm = (repl_state == DrbdVolume::repl_state::ESTABLISHED);
if (!hide_norm_peer_volumes || !disk_state_norm || !repl_state_norm)
{
uint16_t vol_nr = vol.get_volume_nr();
const char* disk_label = vol.get_disk_state_label();
const char* repl_label = vol.get_replication_state_label();
const char* disk_format = FORMAT_ALERT;
if (disk_state == DrbdVolume::disk_state::UP_TO_DATE)
{
disk_format = VOL_FORMAT_STATE_NORM;
}
else
if (disk_state == DrbdVolume::disk_state::DISKLESS)
{
disk_format = VOL_FORMAT_STATE_CLIENT;
}
bool show_replication = true;
const char* repl_format = FORMAT_ALERT;
switch (repl_state)
{
case DrbdVolume::repl_state::ESTABLISHED:
show_replication = false;
break;
case DrbdVolume::repl_state::SYNC_SOURCE:
// fall-through
case DrbdVolume::repl_state::SYNC_TARGET:
// fall-through
repl_format = VOL_FORMAT_REPL_NORM;
break;
case DrbdVolume::repl_state::STARTING_SYNC_SOURCE:
// fall-through
case DrbdVolume::repl_state::STARTING_SYNC_TARGET:
// fall-through
case DrbdVolume::repl_state::WF_BITMAP_SOURCE:
// fall-through
case DrbdVolume::repl_state::WF_BITMAP_TARGET:
// fall-through
case DrbdVolume::repl_state::WF_SYNC_UUID:
// fall-through
case DrbdVolume::repl_state::AHEAD:
// fall-through
case DrbdVolume::repl_state::BEHIND:
repl_format = FORMAT_WARN;
break;
case DrbdVolume::repl_state::OFF:
// fall-through
case DrbdVolume::repl_state::PAUSED_SYNC_SOURCE:
// fall-through
case DrbdVolume::repl_state::PAUSED_SYNC_TARGET:
// fall-through
case DrbdVolume::repl_state::VERIFY_SOURCE:
// fall-through
case DrbdVolume::repl_state::VERIFY_TARGET:
// fall-through
case DrbdVolume::repl_state::UNKNOWN:
// fall-through
default:
// all other states are marked as an alert
break;
}
out << " " <<
VOL_LABEL << VOL_FORMAT_NR <<
std::right << std::setw(2) << static_cast<long> (vol_nr) <<
FORMAT_RESET << " " <<
disk_format << std::left << std::setw(15) << disk_label <<
FORMAT_RESET << " ";
if (show_replication)
{
out << repl_format << std::left << std::setw(15) << repl_label;
}
else
{
out << std::setw(15) << "";
}
out << FORMAT_RESET << std::endl;
}
}
}
void Display::set_terminal_size(uint16_t size_x, uint16_t size_y)
{
if (size_x >= MIN_SIZE_X)
{
if (size_x <= MAX_SIZE_X)
{
term_x = size_x;
}
else
{
term_x = MAX_SIZE_X;
}
}
else
{
term_x = MIN_SIZE_X;
}
if (size_y >= MIN_SIZE_Y)
{
if (size_y <= MAX_SIZE_Y)
{
term_y = size_y;
}
else
{
term_y = MAX_SIZE_Y;
}
}
else
{
term_y = MIN_SIZE_Y;
}
}
void Display::key_pressed(const char key)
{
}
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