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Commit 4443084f authored by Stefan Raspl's avatar Stefan Raspl Committed by Paolo Bonzini
Browse files

tools/kvm_stat: add interactive command 'c' 



Provide a real simple way to erase any active filter.

Signed-off-by: default avatarStefan Raspl <raspl@linux.vnet.ibm.com>
Reviewed-by: default avatarMarc Hartmayer <mhartmay@linux.vnet.ibm.com>
Signed-off-by: default avatarRadim Krčmář <rkrcmar@redhat.com>
parent f9ff1087

tools/kvm/kvm_stat/kvm_stat

+12 −4
Original line number Diff line number Diff line
@@ -861,6 +861,7 @@ DELAY_INITIAL = 0.25 
DELAY_REGULAR = 3.0

MAX_GUEST_NAME_LEN = 48

MAX_REGEX_LEN = 44

DEFAULT_REGEX = r'^[^\(]*$'





class Tui(object):
@@ -907,9 +908,9 @@ class Tui(object): 
    def update_drilldown(self):

        """Sets or removes a filter that only allows fields without braces."""

        if not self.stats.fields_filter:

            self.stats.fields_filter = r'^[^\(]*$'

            self.stats.fields_filter = DEFAULT_REGEX



        elif self.stats.fields_filter == r'^[^\(]*$':

        elif self.stats.fields_filter == DEFAULT_REGEX:

            self.stats.fields_filter = None



    def update_pid(self, pid):
@@ -931,7 +932,8 @@ class Tui(object): 
                               .format(pid, gname), curses.A_BOLD)

        else:

            self.screen.addstr(0, 0, 'kvm statistics - summary', curses.A_BOLD)

        if self.stats.fields_filter and self.stats.fields_filter != '^[^\(]*$':

        if self.stats.fields_filter and self.stats.fields_filter \

           != DEFAULT_REGEX:

            regex = self.stats.fields_filter

            if len(regex) > MAX_REGEX_LEN:

                regex = regex[:MAX_REGEX_LEN] + '...'
@@ -991,7 +993,7 @@ class Tui(object): 
            regex = self.screen.getstr()

            curses.noecho()

            if len(regex) == 0:

                self.stats.fields_filter = r'^[^\(]*$'

                self.stats.fields_filter = DEFAULT_REGEX

                self.refresh_header()

                return

            try:
@@ -1101,6 +1103,11 @@ class Tui(object): 
                    sleeptime = DELAY_INITIAL

                if char == 'q':

                    break

                if char == 'c':

                    self.stats.fields_filter = DEFAULT_REGEX

                    self.refresh_header(0)

                    self.update_pid(0)

                    sleeptime = DELAY_INITIAL

                if char == 'f':

                    self.show_filter_selection()

                    sleeptime = DELAY_INITIAL
@@ -1177,6 +1184,7 @@ Requirements: 
  the large number of files that are possibly opened.



Interactive Commands:

   c     clear filter

   f     filter by regular expression

   g     filter by guest name

   p     filter by PID

tools/kvm/kvm_stat/kvm_stat.txt

+2 −0
Original line number Diff line number Diff line
@@ -29,6 +29,8 @@ meaning of events. 
INTERACTIVE COMMANDS

--------------------

[horizontal]

*c*::	clear filter



*f*::	filter by regular expression



*g*::	filter by guest name