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bin/qasim-gui: Fix other process detection using /proc instead of kill.

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This commit is contained in:
Glenn Y. Rolland 2011-10-18 16:33:50 +02:00
parent ed6a74ff47
commit c050b32b20
1 changed files with 9 additions and 4 deletions
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9
bin/qasim-gui.rb
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@ -225,10 +225,15 @@ module Qasim
# test if the other process still exist # test if the other process still exist
masterpid = File.read(lockfname).strip masterpid = File.read(lockfname).strip
begin begin
Process.kill(0, masterpid.to_i) # FIXME: test if the other process exists
other_path = "/proc/#{masterpid.to_i}"
if File.exists? other_path then
cmdline = File.read( File.join( other_path, 'cmdline' ) )
if cmdline =~ /qasim/ then
warn "error: Another instance of %s is already running." % APP_NAME warn "error: Another instance of %s is already running." % APP_NAME
exit 1 exit 1
rescue Errno::ESRCH => e end
end
fd = IO::sysopen( lockfname, fd = IO::sysopen( lockfname,
Fcntl::O_WRONLY | Fcntl::O_EXCL ) Fcntl::O_WRONLY | Fcntl::O_EXCL )
f = IO.open(fd) f = IO.open(fd)