# some primitives for checking stream contents == 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 #? Entry: # run a single test, while debugging #? e8/call test-next-stream-line-equal-stops-at-newline/disp32 #? # syscall(exit, Num-test-failures) #? 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num-test-failures/disp32 # copy *Num-test-failures to EBX #? b8/copy-to-EAX 1/imm32/exit #? cd/syscall 0x80/imm8 # compare all the data in a stream (ignoring the read pointer) stream-data-equal?: # f : (address stream), s : (address string) -> EAX : boolean # . prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP # . save registers 51/push-ECX 52/push-EDX 56/push-ESI 57/push-EDI # ESI = f 8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 6/r32/ESI 8/disp8 . # copy *(EBP+8) to ESI # EAX = f->write 8b/copy 0/mod/indirect 6/rm32/ESI . . . 0/r32/EAX . . # copy *ESI to EAX # max/EDX = f->data + f->write 8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/ESI 0/index/EAX . 2/r32/EDX 0xc/disp8 . # copy ESI+EAX+12 to EDX # currf/ESI = f->data 81 0/subop/add 3/mod/direct 6/rm32/ESI . . . . . 0xc/imm32 # add to ESI # EDI = s 8b/copy 1/mod/*+disp8 5/rm32/EBP . . . 7/r32/EDI 0xc/disp8 . # copy *(EBP+12) to EDI # if (f->write != s->length) return false 39/compare 0/mod/indirect 7/rm32/EDI . . . 0/r32/EAX . . # compare *EDI and EAX 75/jump-if-not-equal $stream-data-equal?:false/disp8 # currs/EDI = s->data 81 0/subop/add 3/mod/direct 7/rm32/EDI . . . . . 4/imm32 # add to EDI # EAX = ECX = 0 31/xor 3/mod/direct 0/rm32/EAX . . . 0/r32/EAX . . # clear EAX 31/xor 3/mod/direct 1/rm32/ECX . . . 1/r32/ECX . . # clear ECX $stream-data-equal?:loop: # if (curr >= max) return true 39/compare 3/mod/direct 6/rm32/ESI . . . 2/r32/EDX . . # compare ESI with EDX 7d/jump-if-greater-or-equal $stream-data-equal?:true/disp8 # AL = *currs 8a/copy-byte 0/mod/indirect 6/rm32/ESI . . . 0/r32/AL . . # copy byte at *ESI to AL # CL = *curr 8a/copy-byte 0/mod/indirect 7/rm32/EDI . . . 1/r32/CL . . # copy byte at *EDI to CL # if (EAX != ECX) return false 39/compare 3/mod/direct 0/rm32/EAX . . . 1/r32/ECX . . # compare EAX and ECX 75/jump-if-not-equal $stream-data-equal?:false/disp8 # ++f 46/increment-ESI # ++curr 47/increment-EDI eb/jump $stream-data-equal?:loop/disp8 $stream-data-equal?:false: b8/copy-to-EAX 0/imm32 eb/jump $stream-data-equal?:end/disp8 $stream-data-equal?:true: b8/copy-to-EAX 1/imm32 $stream-data-equal?:end: # . restore registers 5f/pop-to-EDI 5e/pop-to-ESI 5a/pop-to-EDX 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 test-stream-data-equal: # . prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP # 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 # write(_test-stream, "Abc") # . . push args 68/push "Abc"/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 # EAX = stream-data-equal?(_test-stream, "Abc") # . . push args 68/push "Abc"/imm32 68/push _test-stream/imm32 # . . call e8/call stream-data-equal?/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # check-ints-equal(EAX, 1, msg) # . . push args 68/push "F - test-stream-data-equal"/imm32 68/push 1/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 # . epilog 89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP 5d/pop-to-EBP c3/return test-stream-data-equal-2: # . prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP # 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 # write(_test-stream, "Abc") # . . push args 68/push "Abc"/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 # EAX = stream-data-equal?(_test-stream, "Abd") # . . push args 68/push "Abd"/imm32 68/push _test-stream/imm32 # . . call e8/call stream-data-equal?/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # check-ints-equal(EAX, 0, msg) # . . push args 68/push "F - test-stream-data-equal-2"/imm32 68/push 0/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 # . epilog 89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP 5d/pop-to-EBP c3/return test-stream-data-equal-length-check: # . prolog 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP # 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 # write(_test-stream, "Abc") # . . push args 68/push "Abc"/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 # EAX = stream-data-equal?(_test-stream, "Abcd") # . . push args 68/push "Abcd"/imm32 68/push _test-stream/imm32 # . . call e8/call stream-data-equal?/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # check-ints-equ
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    <p><tt>#&nbsp;Copyright&nbsp;(C)&nbsp;2009,&nbsp;2010&nbsp;&nbsp;Roman&nbsp;Zimbelmann&nbsp;&lt;romanz@lavabit.com&gt;<br>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Classes</strong></big></font></td></tr>
    
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<dt><font face="helvetica, arial"><a href="ranger.fsobject.fsobject.html#FileSystemObject">ranger.fsobject.fsobject.FileSystemObject</a>(<a href="ranger.shared.mimetype.html#MimeTypeAware">ranger.shared.mimetype.MimeTypeAware</a>, <a href="ranger.shared.html#FileManagerAware">ranger.shared.FileManagerAware</a>)
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<font color="#000000" face="helvetica, arial"><a name="File">class <strong>File</strong></a>(<a href="ranger.fsobject.fsobject.html#FileSystemObject"