patches/uClibc/0.9.28.1/004-uClibc_ctype.patch
author |
"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> |
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Sun May 20 13:48:26 2007 +0000 (2007-05-20) |
changeset 112 |
ea15433daba0 |
permissions |
-rw-r--r-- |
Ah! I finally have a progress bar that doesn't stall the build!
- pipe size in Linux is only 8*512=4096 bytes
- pipe size is not setable
- when the feeding process spits out data faster than the eating
process can read it, then the feeding process stalls after 4KiB
of data sent to the pipe
- for us, the progress bar would spawn a sub-shell every line,
and the sub-shell would in turn spawn a 'date' command.
Which was sloooww as hell, and would cause some kind of a
starvation: the pipe was full most of the time, and the
feeding process was stalled all this time.
Now, we use internal variables and a little hack based onan offset
to determine the elapsed time. Much faster this way, but still
CPU-intensive.
yann@1
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diff -urN uClibc-dist/libc/sysdeps/linux/common/bits/uClibc_touplow.h uClibc/libc/sysdeps/linux/common/bits/uClibc_touplow.h
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yann@1
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--- uClibc-dist/libc/sysdeps/linux/common/bits/uClibc_touplow.h Fri Jun 3 13:30:25 2005
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yann@1
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+++ uClibc/libc/sysdeps/linux/common/bits/uClibc_touplow.h Fri Jun 3 13:30:39 2005
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yann@1
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@@ -34,11 +34,11 @@
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yann@1
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yann@1
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/* glibc uses the equivalent of - typedef __int32_t __ctype_touplow_t; */
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yann@1
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yann@1
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-typedef __uint16_t __ctype_mask_t;
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yann@1
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+typedef __uint32_t __ctype_mask_t;
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yann@1
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yann@1
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#ifdef __UCLIBC_HAS_CTYPE_SIGNED__
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yann@1
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yann@1
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-typedef __int16_t __ctype_touplow_t;
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yann@1
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+typedef __int32_t __ctype_touplow_t;
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yann@1
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#define __UCLIBC_CTYPE_B_TBL_OFFSET 128
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yann@1
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#define __UCLIBC_CTYPE_TO_TBL_OFFSET 128
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yann@1
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