import (
"database/sql"
"fmt"
+ "strings"
"time"
+ "github.com/sjmudd/pstop/i_s"
"github.com/sjmudd/pstop/lib"
- fsbi "github.com/sjmudd/pstop/performance_schema/file_summary_by_instance"
- "github.com/sjmudd/pstop/performance_schema/ps_table"
- tiwsbt "github.com/sjmudd/pstop/performance_schema/table_io_waits_summary_by_table"
- tlwsbt "github.com/sjmudd/pstop/performance_schema/table_lock_waits_summary_by_table"
+ fsbi "github.com/sjmudd/pstop/p_s/file_summary_by_instance"
+ "github.com/sjmudd/pstop/p_s/ps_table"
+ tiwsbt "github.com/sjmudd/pstop/p_s/table_io_waits_summary_by_table"
+ tlwsbt "github.com/sjmudd/pstop/p_s/table_lock_waits_summary_by_table"
"github.com/sjmudd/pstop/screen"
"github.com/sjmudd/pstop/version"
)
showOps = iota
showIO = iota
showLocks = iota
+ showUsers = iota
)
type State struct {
fsbi ps_table.Tabler // ufsbi.File_summary_by_instance
tiwsbt tiwsbt.Table_io_waits_summary_by_table
tlwsbt ps_table.Tabler // tlwsbt.Table_lock_waits_summary_by_table
+ users i_s.Processlist
screen screen.TermboxScreen
show Show
mysql_version string
state.tlwsbt.SetNow()
state.tiwsbt.SetWantRelativeStats(state.want_relative_stats)
state.tiwsbt.SetNow()
+ state.users.SetWantRelativeStats(state.want_relative_stats) // ignored
+ state.users.SetNow() // ignored
state.ResetDBStatistics()
state.show = showLatency
state.tiwsbt.SetWantsLatency(true)
+ // get short name (to save space)
_, hostname := lib.SelectGlobalVariableByVariableName(state.dbh, "HOSTNAME")
+ if index := strings.Index(hostname, "."); index >= 0 {
+ hostname = hostname[0:index]
+ }
_, mysql_version := lib.SelectGlobalVariableByVariableName(state.dbh, "VERSION")
_, datadir := lib.SelectGlobalVariableByVariableName(state.dbh, "DATADIR")
state.SetHostname(hostname)
// do a fresh collection of data and then update the initial values based on that.
func (state *State) ResetDBStatistics() {
state.CollectAll()
- state.UpdateInitialValues()
+ state.SyncReferenceValues()
}
-func (state *State) UpdateInitialValues() {
+func (state *State) SyncReferenceValues() {
start := time.Now()
- state.fsbi.UpdateInitialValues()
- state.tlwsbt.UpdateInitialValues()
- state.tiwsbt.UpdateInitialValues()
- lib.Logger.Println("state.UpdateInitialValues() took", time.Duration(time.Since(start)).String())
+ state.fsbi.SyncReferenceValues()
+ state.tlwsbt.SyncReferenceValues()
+ state.tiwsbt.SyncReferenceValues()
+ lib.Logger.Println("state.SyncReferenceValues() took", time.Duration(time.Since(start)).String())
}
// collect all initial values on startup / reset
state.fsbi.Collect(state.dbh)
case showLocks:
state.tlwsbt.Collect(state.dbh)
+ case showUsers:
+ state.users.Collect(state.dbh)
}
lib.Logger.Println("state.Collect() took", time.Duration(time.Since(start)).String())
}
return state.help
}
+// states go: showLatency -> showOps -> showIO -> showLocks -> showUsers
+
// display the output according to the mode we are in
func (state *State) Display() {
if state.help {
state.displayIO()
case showLocks:
state.displayLocks()
+ case showUsers:
+ state.displayUsers()
}
}
}
-// change to the next display mode
-func (state *State) DisplayNext() {
- if state.show == showLocks {
- state.show = showLatency
- } else {
- state.show++
- }
- // this needs to be done more cleanly
+// fix_latency_setting() ensures the SetWantsLatency() value is
+// correct. This needs to be done more cleanly.
+func (state *State) fix_latency_setting() {
if state.show == showLatency {
state.tiwsbt.SetWantsLatency(true)
}
if state.show == showOps {
state.tiwsbt.SetWantsLatency(false)
}
+}
+
+// change to the previous display mode
+func (state *State) DisplayPrevious() {
+ if state.show == showLatency {
+ state.show = showUsers
+ } else {
+ state.show--
+ }
+ state.fix_latency_setting()
+ state.screen.Clear()
+ state.screen.Flush()
+}
+
+// change to the next display mode
+func (state *State) DisplayNext() {
+ if state.show == showUsers {
+ state.show = showLatency
+ } else {
+ state.show++
+ }
+ state.fix_latency_setting()
state.screen.Clear()
state.screen.Flush()
}
func (state State) displayHeading() {
state.displayLine0()
- state.displayLine1()
+ state.displayDescription()
}
func (state State) displayLine0() {
initial = state.fsbi.Last()
case showLocks:
initial = state.tlwsbt.Last()
+ case showUsers:
+ initial = state.users.Last()
default:
- initial = time.Now() // THIS IS WRONG !!!
+ // should not get here !
}
d := now.Sub(initial)
state.screen.PrintAt(0, 0, top_line)
}
-func (state State) displayLine1() {
+func (state State) displayDescription() {
+ description := "UNKNOWN"
+
switch state.show {
case showLatency, showOps:
- state.screen.PrintAt(0, 1, state.tiwsbt.Description())
+ description = state.tiwsbt.Description()
case showIO:
- state.screen.PrintAt(0, 1, state.fsbi.Description())
+ description = state.fsbi.Description()
case showLocks:
- state.screen.PrintAt(0, 1, state.tlwsbt.Description())
- default:
- state.screen.PrintAt(0, 1, "UNKNOWN")
+ description = state.tlwsbt.Description()
+ case showUsers:
+ description = state.users.Description()
}
+
+ state.screen.PrintAt(0, 1, description)
}
func (state *State) displayOpsOrLatency() {
- state.screen.PrintAt(0, 2, state.tiwsbt.Headings())
+ state.screen.BoldPrintAt(0, 2, state.tiwsbt.Headings())
max_rows := state.screen.Height() - 3
row_content := state.tiwsbt.RowContent(max_rows)
}
// print out the totals at the bottom
- state.screen.PrintAt(0, state.screen.Height()-1, state.tiwsbt.TotalRowContent())
+ state.screen.BoldPrintAt(0, state.screen.Height()-1, state.tiwsbt.TotalRowContent())
}
// show actual I/O latency values
func (state State) displayIO() {
- state.screen.PrintAt(0, 2, state.fsbi.Headings())
+ state.screen.BoldPrintAt(0, 2, state.fsbi.Headings())
// print out the data
max_rows := state.screen.Height() - 3
}
// print out the totals at the bottom
- state.screen.PrintAt(0, state.screen.Height()-1, state.fsbi.TotalRowContent())
+ state.screen.BoldPrintAt(0, state.screen.Height()-1, state.fsbi.TotalRowContent())
}
func (state *State) displayLocks() {
- state.screen.PrintAt(0, 2, state.tlwsbt.Headings())
+ state.screen.BoldPrintAt(0, 2, state.tlwsbt.Headings())
// print out the data
max_rows := state.screen.Height() - 3
}
// print out the totals at the bottom
- state.screen.PrintAt(0, state.screen.Height()-1, state.tlwsbt.TotalRowContent())
+ state.screen.BoldPrintAt(0, state.screen.Height()-1, state.tlwsbt.TotalRowContent())
+}
+
+func (state *State) displayUsers() {
+ state.screen.BoldPrintAt(0, 2, state.users.Headings())
+
+ // print out the data
+ max_rows := state.screen.Height() - 3
+ row_content := state.users.RowContent(max_rows)
+
+ // print out rows
+ for k := range row_content {
+ y := 3 + k
+ state.screen.PrintAt(0, y, row_content[k])
+ }
+ // print out empty rows
+ for k := len(row_content); k < (state.screen.Height() - 3); k++ {
+ y := 3 + k
+ if y < state.screen.Height()-1 {
+ state.screen.PrintAt(0, y, state.users.EmptyRowContent())
+ }
+ }
+
+ // print out the totals at the bottom
+ state.screen.BoldPrintAt(0, state.screen.Height()-1, state.users.TotalRowContent())
}
// do we want to show all p_s data?
state.fsbi.SetWantRelativeStats(want_relative_stats)
state.tlwsbt.SetWantRelativeStats(state.want_relative_stats)
state.tiwsbt.SetWantRelativeStats(state.want_relative_stats)
-
- state.Display()
}
// if there's a better way of doing this do it better ...
git://git.iain.cx/iain / pstop.git / blobdiff