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Use kvm_openfiles instead of kvm_open for BSD #114

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merged 1 commit into from
Feb 16, 2025
Merged

Use kvm_openfiles instead of kvm_open for BSD #114

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6 changes: 4 additions & 2 deletions lib/bsd/sys/freebsd/sys/proctable.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -50,12 +50,14 @@ class Error < StandardError; end
#
def self.ps(**kwargs)
pid = kwargs[:pid]
errbuf = 0.chr * POSIX2_LINE_MAX

begin
kd = kvm_open(nil, nil, nil, 0, nil)
kd = kvm_openfiles(nil, nil, nil, 0, errbuf)

if kd.null?
raise SystemCallError.new('kvm_open', FFI.errno)
error = errbuf.split(0.chr).first
raise SystemCallError.new("kvm_openfiles - #{error}", FFI.errno)
end

ptr = FFI::MemoryPointer.new(:int) # count
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1 change: 1 addition & 0 deletions lib/bsd/sys/freebsd/sys/proctable/constants.rb
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@@ -1,6 +1,7 @@
module Sys
module ProcTableConstants
POSIX_ARG_MAX = 4096
POSIX2_LINE_MAX = 2048

KERN_PROC_PID = 1
KERN_PROC_PROC = 8
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2 changes: 1 addition & 1 deletion lib/bsd/sys/freebsd/sys/proctable/functions.rb
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Expand Up @@ -6,7 +6,7 @@ module ProcTableFunctions
ffi_lib :kvm

attach_function :devname, [:dev_t, :mode_t], :string
attach_function :kvm_open, [:string, :string, :string, :int, :string], :pointer
attach_function :kvm_openfiles, [:string, :string, :string, :int, :buffer_out], :pointer
attach_function :kvm_close, [:pointer], :int
attach_function :kvm_getprocs, [:pointer, :int, :int, :pointer], :pointer
attach_function :kvm_getargv, [:pointer, :pointer, :int], :pointer
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