On 8/12/07, Pedro Côrte-Real <[EMAIL PROTECTED]> wrote:
> I'm not sure. owread outputs the right thing but so does my ruby code
> if I do a puts to a terminal since printf ignores those characters.
> I'll have to strace owread.
I've straced owread and it's reading 24 extra bytes in the uncached case:
writev(3, [{"\0\0\0\0\0\0\0+\0\0\0\2\0\0\1\2\0\0\37\240\0\0\0\0", 24},
{"/uncached/12.CC8834000000/TAI8570/pressure\0", 43}, {NULL, 0},
{NULL, 0}, {NULL, 0}], 5) = 67
select(4, [3], NULL, NULL, {2, 0}) = 1 (in [3], left {0, 440000})
read(3, "\0\0\0\0\377\377\377\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 24) = 24
select(4, [3], NULL, NULL, {2, 0}) = 1 (in [3], left {1, 764000})
read(3, "\0\0\0\0\0\0\0\f\0\0\0\f\0\0\1\2\0\0\0\f\0\0\0\0", 24) = 24
select(4, [3], NULL, NULL, {2, 0}) = 1 (in [3], left {2, 0})
read(3, " 996.871", 12) = 12
than in the cached case:
writev(3, [{"\0\0\0\0\0\0\0\"\0\0\0\2\0\0\1\2\0\0\37\240\0\0\0\0",
24}, {"/12.CC8834000000/TAI8570/pressure\0", 34}, {NULL, 0}, {NULL,
0}, {NULL, 0}], 5) = 58
select(4, [3], NULL, NULL, {2, 0}) = 1 (in [3], left {2, 0})
read(3, "\0\0\0\0\0\0\0\f\0\0\0\f\0\0\1\2\0\0\0\f\0\0\0\0", 24) = 24
select(4, [3], NULL, NULL, {2, 0}) = 1 (in [3], left {2, 0})
read(3, " 996.951", 12) = 12
What are those first 24 bytes and why do they mean the client should
read another 24?
Thanks,
Pedro.
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