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(File System): stat:rdev and stat:blocks can return #f,

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stat:blksize returns a sensible size if the field is not available.
This commit is contained in:
Kevin Ryde 2003-06-04 15:37:28 +00:00
parent d23496c0c7
commit f5f7888d1c
1 changed files with 9 additions and 6 deletions
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15
doc/ref/posix.texi
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@ -594,8 +594,9 @@ The user ID of the file's owner.
The group ID of the file.
@end deffn
@deffn {Scheme Procedure} stat:rdev st
Device ID; this entry is defined only for character or block
special files.
Device ID; this entry is defined only for character or block special
files. On some systems this field is not available at all, in which
case @code{stat:rdev} returns @code{#f}.
@end deffn
@deffn {Scheme Procedure} stat:size st
The size of a regular file in bytes.
@ -610,12 +611,14 @@ The last modification time for the file.
The last modification time for the attributes of the file.
@end deffn
@deffn {Scheme Procedure} stat:blksize st
The optimal block size for reading or writing the file, in
bytes.
The optimal block size for reading or writing the file, in bytes. On
some systems this field is not available, in which case
@code{stat:blksize} returns a sensible suggested block size.
@end deffn
@deffn {Scheme Procedure} stat:blocks st
The amount of disk space that the file occupies measured in
units of 512 byte blocks.
The amount of disk space that the file occupies measured in units of
512 byte blocks. On some systems this field is not available, in
which case @code{stat:blocks} returns @code{#f}.
@end deffn
In addition, the following procedures return the information