Sha256: 370e4e337d52cdd3a16ea703a80885c1a721e6feea45520e6607ca9877789be8
Contents?: true
Size: 1.06 KB
Versions: 18
Compression:
Stored size: 1.06 KB
Contents
class PEdump
class CompositeIO
def initialize(*ios)
@ios = ios.flatten
@starts = ios.map(&:tell) # respect current position of each IO
@pos = 0
end
def read(amount = nil, buf = nil)
buf ||= ''; buf1 = ''
# truncates buffer to zero length if nothing read
@ios.first.read(amount,buf)
@ios[1..-1].each do |io|
break if amount && buf.size >= amount
io.read(amount ? (amount-buf.size) : nil, buf1)
buf << buf1
end
@pos += buf.size
buf.size > 0 ? buf : (amount ? nil : buf )
end
def tell
@pos
end
def seek pos
@pos = pos
@ios.each_with_index do |io,idx|
if pos > 0
sz = io.size-@starts[idx]
io.seek( @starts[idx] + (pos < sz ? pos : sz) )
pos -= sz
else
# seek all remaining IOs to 0
io.seek @starts[idx]
end
end
end
def rewind
seek(0)
end
def size
@ios.map(&:size).inject(&:+)
end
def eof?
@ios.all?(&:eof?)
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems