Move to i_s / p_s and add user info (not quite complete)

[pstop.git] / i_s / pl_by_user.go

diff --git a/i_s/pl_by_user.go b/i_s/pl_by_user.go
new file mode 100644 (file)
index 0000000..9ad2c8d
--- /dev/null
+++ b/i_s/pl_by_user.go
@@ -0,0 +1,135 @@
+package i_s
+
+import (
+       "fmt"
+       "sort"
+
+       "github.com/sjmudd/pstop/lib"
+)
+
+/*
+root@localhost [i_s]> show create table i_s\G
+*************************** 1. row ***************************
+CREATE TEMPORARY TABLE `PROCESSLIST` (
+       `ID` bigint(21) unsigned NOT NULL DEFAULT '0',
+       `USER` varchar(16) NOT NULL DEFAULT '',
+       `HOST` varchar(64) NOT NULL DEFAULT '',
+       `DB` varchar(64) DEFAULT NULL, `COMMAND` varchar(16) NOT NULL DEFAULT '', `TIME` int(7) NOT NULL DEFAULT '0', `STATE` varchar(64) DEFAULT NULL,
+       `INFO` longtext
+) ENGINE=MyISAM DEFAULT CHARSET=utf8
+1 row in set (0.02 sec)
+*/
+
+// a summary row of information taken from information_schema.processlist
+type pl_by_user_row struct {
+       username    string
+       runtime     uint64
+       connections uint64
+       active      uint64
+       hosts       uint64
+       dbs         uint64
+       selects     uint64
+       inserts     uint64
+       updates     uint64
+       deletes     uint64
+       other       uint64
+}
+type pl_by_user_rows []pl_by_user_row
+
+/*
+username      |Run Time   %age|Conn Actv|Hosts DBs|Select Insert Update Delete  Other|
+xxxxxxxxxxxxxx|hh:mm:ss 100.0%|9999 9999|9999  999|100.0% 100.0% 100.0% 100.0% 100.0%|
+*/
+
+func (r *pl_by_user_row) headings() string {
+       return fmt.Sprintf("%-14s|%10s %6s|%5s %4s|%4s %3s|%6s %6s %6s %6s %6s|",
+               "username", "Run Time", "%", "Conn", "Actv", "Hosts", "DBs", "Select", "Insert", "Update", "Delete", "Other")
+}
+
+// generate a printable result
+func (r *pl_by_user_row) row_content(totals pl_by_user_row) string {
+       var u string
+       if len(r.username) == 0 {
+               u = ""
+       } else if len(r.username) > 14 {
+               u = r.username[0:14]
+       } else {
+               u = r.username
+       }
+       return fmt.Sprintf("%-14s|%10s %6s|%5s %4s|%4s %3s|%6s %6s %6s %6s %6s|",
+               u,
+               lib.FormatTime(r.runtime),
+               lib.FormatPct(lib.MyDivide(r.runtime, totals.runtime)),
+               lib.FormatAmount(r.connections),
+               lib.FormatAmount(r.active),
+               lib.FormatAmount(r.hosts),
+               lib.FormatAmount(r.dbs),
+               lib.FormatAmount(r.selects),
+               lib.FormatAmount(r.inserts),
+               lib.FormatAmount(r.updates),
+               lib.FormatAmount(r.deletes),
+               lib.FormatAmount(r.other))
+}
+
+// generate a row of totals from a table
+func (t pl_by_user_rows) totals() pl_by_user_row {
+       var totals pl_by_user_row
+       totals.username = "TOTALS"
+
+       for i := range t {
+               totals.runtime += t[i].runtime
+               totals.connections += t[i].connections
+               totals.active += t[i].active
+               //              totals.hosts += t[i].hosts              This needs to be done differently to get the total number of distinct hosts
+               //              totals.dbs += t[i].dbs                  This needs to be done differently to get the total number of distinct dbs
+               totals.selects += t[i].selects
+               totals.inserts += t[i].inserts
+               totals.updates += t[i].updates
+               totals.deletes += t[i].deletes
+               totals.other += t[i].other
+       }
+
+       return totals
+}
+
+func (t pl_by_user_rows) Headings() string {
+       var r pl_by_user_row
+       return r.headings()
+}
+
+// describe a whole row
+func (r pl_by_user_row) String() string {
+       return fmt.Sprintf("%v %v %v %v %v %v %v %v %v", r.username, r.runtime, r.connections, r.active, r.hosts, r.dbs, r.selects, r.inserts, r.updates, r.deletes, r.other)
+}
+
+// describe a whole table
+func (t pl_by_user_rows) String() string {
+       s := ""
+       for i := range t {
+               s = s + t[i].String() + "\n"
+       }
+       return s
+}
+
+// for sorting
+type ByRunTime pl_by_user_rows
+
+func (t ByRunTime) Len() int      { return len(t) }
+func (t ByRunTime) Swap(i, j int) { t[i], t[j] = t[j], t[i] }
+func (t ByRunTime) Less(i, j int) bool {
+       return (t[i].runtime > t[j].runtime) ||
+               ((t[i].runtime == t[j].runtime) && (t[i].connections > t[j].connections))
+}
+
+func (t pl_by_user_rows) Sort() {
+       sort.Sort(ByRunTime(t))
+}
+
+func (r pl_by_user_row) Description() string {
+       return "no description"
+}
+
+func (t pl_by_user_rows) emptyRowContent() string {
+       var r pl_by_user_row
+       return r.row_content(r)
+}