incremented version number and updated pydoc html files - ranger - mirror of ranger

diff options

author	hut <hut@lavabit.com>	2010-02-16 01:56:21 +0100
committer	hut <hut@lavabit.com>	2010-02-16 02:03:46 +0100
commit	34a60763e79546e0f84e30fbcc430632f3dbb39e (patch)
tree	595579022daa922b3e4945928b4478c0797b3b2c /doc/pydoc/ranger.ext.openstruct.html
parent	0654d6d093f8e78033b9dcafcb52bbdcd92aed0c (diff)
download	ranger-34a60763e79546e0f84e30fbcc430632f3dbb39e.tar.gz

incremented version number and updated pydoc html files v1.0.3

Diffstat (limited to 'doc/pydoc/ranger.ext.openstruct.html')

-rw-r--r--

doc/pydoc/ranger.ext.openstruct.html

1 files changed, 4 insertions, 4 deletions

# read-byte-buffered: one higher-level abstraction atop 'read'. # # There are many situations where 'read' is a lot to manage, and we need # to abstract some details away. One of them is when we want to read a file # character by character. In this situation we follow C's FILE data structure, # which manages the underlying file descriptor together with the buffer it # reads into. We call our version 'buffered-file'. Should be useful with other # primitives as well, in later layers. == data # The buffered file for standard input. Also illustrates the layout for # buffered-file. Stdin: # file descriptor or (address stream) 0/imm32 # standard input # current write index 0/imm32 # current read index 0/imm32 # length 8/imm32 # data 00 00 00 00 00 00 00 00 # 8 bytes # TODO: 8 bytes is too small. We'll need to grow the buffer for efficiency. But # I don't want to type in 1024 bytes here. == code # instruction effective address register displacement immediate # . op subop mod rm32 base index scale r32 # . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes # return next byte value in EAX, with top 3 bytes cleared. # On reaching end of file, return 0xffffffff (Eof). read-byte-buffered: # f : (address buffered-file) -> byte-or-Eof/EAX # . prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP # . save registers 51/push-ECX 56/push-ESI # ESI = f 8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI # ECX = f->read 8b/copy 1/mod/*+disp8 6/rm32/ESI . . . 1/r32/ECX 8/disp8 . # copy *(ESI+8) to ECX # if (f->read >= f->write) populate stream from file 3b/compare 1/mod/*+disp8 6/rm32/ESI . . . 1/r32/ECX 4/disp8 . # compare ECX with *(ESI+4) 7c/jump-if-lesser $read-byte-buffered:from-stream/disp8 # . clear-stream(stream = f+4) # . . push args 8d/copy-address 1/mod/*+disp8 6/rm32/ESI . . . 0/r32/EAX 4/disp8 . # copy ESI+4 to EAX 50/push-EAX # . . call e8/call clear-stream/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # . f->read must now be 0; update its cache at ECX 31/xor 3/mod/direct 1/rm32/ECX . . . 1/r32/ECX . . # clear ECX # . EAX = read(f->fd, stream = f+4) # . . push args 50/push-EAX ff 6/subop/push 0/mod/indirect 6/rm32/ESI . . . . . . # push *ESI # . . call e8/call read/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # if (EAX == 0) return 0xffffffff 3d/compare-EAX-and 0/imm32 75/jump-if-not-equal $read-byte-buffered:from-stream/disp8 b8/copy-to-EAX 0xffffffff/imm32/Eof eb/jump $read-byte-buffered:end/disp8 $read-byte-buffered:from-stream: # read byte from stream # AL = f->data[f->read] 31/xor 3/mod/direct 0/rm32/EAX . . . 0/r32/EAX . . # clear EAX 8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/ESI 1/index/ECX . 0/r32/AL 0x10/disp8 . # copy byte at *(ESI+ECX+16) to AL # ++f->read ff 0/subop/increment 1/mod/*+disp8 6/rm32/ESI . . . . 8/disp8 . # increment *(ESI+8) $read-byte-buffered:end: # . restore registers 5e/pop-to-ESI 59/pop-to-ECX # . epilog 89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP 5d/pop-to-EBP c3/return # - tests test-read-byte-buffered-single: # - check that read-byte-buffered returns first byte of 'file' # setup # . clear-stream(_test-stream) # . . push args 68/push _test-stream/imm32 # . . call e8/call clear-stream/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # . clear-stream(_test-buffered-file+4) # . . push args b8/copy-to-EAX _test-buffered-file/imm32 05/add-to-EAX 4/imm32 50/push-EAX # . . call e8/call clear-stream/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # . write(_test-stream, "Ab") # . . push args 68/push "Ab"/imm32 68/push _test-stream/imm32 # . . call e8/call write/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # read-byte-buffered(_test-buffered-file) # . . push args 68/push _test-buffered-file/imm32 # . . call e8/call read-byte-buffered/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # check-ints-equal(EAX, 'A', msg) # . . push args 68/push "F - test-read-byte-buffered-single"/imm32 68/push 0x41/imm32 50/push-EAX # . . call e8/call check-ints-equal/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP # . end c3/return test-read-byte-buffered-multiple: # - call read-byte-buffered twice, check that second call returns second byte # setup # . clear-stream(_test-stream) # . . push args 68/push _test-stream/imm32 # . . call e8/call clear-stream/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # . clear-stream(_test-buffered-file+4) # . . push args b8/copy-to-EAX _test-buffered-file/imm32 05/add-to-EAX 4/imm32 50/push-EAX # . . call e8/call clear-stream/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # . write(_test-stream, "Ab") # . . push args 68/push "Ab"/imm32 68/push _test-stream/imm32 # . . call e8/call write/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # read-byte-buffered(_test-buffered-file) # . . push args 68/push _test-buffered-file/imm32 # . . call e8/call read-byte-buffered/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # read-byte-buffered(_test-buffered-file) # . . push args 68/push _test-buffered-file/imm32 # . . call e8/call read-byte-buffered/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # check-ints-equal(EAX, 'b', msg) # . . push args 68/push "F - test-read-byte-buffered-multiple"/imm32 68/push 0x62/imm32 50/push-EAX # . . call e8/call check-ints-equal/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP # . end c3/return test-read-byte-buffered-end-of-file: # - call read-byte-buffered on an empty 'file', check that it returns Eof # setup # . clear-stream(_test-stream) # . . push args 68/push _test-stream/imm32 # . . call e8/call clear-stream/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # . clear-stream(_test-buffered-file+4) # . . push args b8/copy-to-EAX _test-buffered-file/imm32 05/add-to-EAX 4/imm32 50/push-EAX # . . call e8/call clear-stream/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # read-byte-buffered(_test-buffered-file) # . . push args 68/push _test-buffered-file/imm32 # . . call e8/call read-byte-buffered/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # check-ints-equal(EAX, 0xffffffff, msg) # . . push args 68/push "F - test-read-byte-buffered-end-of-file"/imm32 68/push 0xffffffff/imm32/Eof 50/push-EAX # . . call e8/call check-ints-equal/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP # . end c3/return test-read-byte-buffered-refills-buffer: # - consume buffered-file's buffer, check that next read-byte-buffered still works # setup # . clear-stream(_test-stream) # . . push args 68/push _test-stream/imm32 # . . call e8/call clear-stream/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # . clear-stream(_test-buffered-file+4) # . . push args b8/copy-to-EAX _test-buffered-file/imm32 05/add-to-EAX 4/imm32 50/push-EAX # . . call e8/call clear-stream/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # . write(_test-stream, "Abcdefgh") # . . push args 68/push "Abcdefgh"/imm32 68/push _test-stream/imm32 # . . call e8/call write/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # pretend buffer is full # . _test-buffered-file->read = 6 # >= _test-buffered-file->length b8/copy-to-EAX _test-buffered-file/imm32 c7 0/subop/copy 1/mod/*+disp8 0/rm32/EAX . . . . 8/disp8 6/imm32 # copy to *(EAX+8) # read-byte-buffered(_test-buffered-file) # . . push args 68/push _test-buffered-file/imm32 # . . call e8/call read-byte-buffered/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # check-ints-equal(EAX, 'A', msg) # . . push args 68/push "F - test-read-byte-buffered-refills-buffer"/imm32 68/push 0x41/imm32 50/push-EAX # . . call e8/call check-ints-equal/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP # . end c3/return == data # a test buffered file for _test-stream _test-buffered-file: # file descriptor or (address stream) _test-stream/imm32 # current write index 0/imm32 # current read index 0/imm32 # length 6/imm32 # data 00 00 00 00 00 00 # 6 bytes # . . vim:nowrap:textwidth=0


context:
space:
mode: