Dear all:
Still We have another question about fileio's opendir
We have checked eCos' source code
----------------------------------------------------
DIR * opendir(const char *path)
{
...
fd = cyg_fd_alloc(1); // Never return fd 0
...
DIR *dirp = (DIR *)fd;
FILEIO_RETURN_VALUE(dirp);
}
----------------------------------------------------
here opendir function will never be 0, therefore max dirs can be opened
will be 1, 2, ..., OPEN_MAX, the value of max dirs can be opened is
OPEN_MAX-1.
However, POSIX standard requires the value to be OPEN_MAX
from POSIX document
The opendir() function shall open a directory stream corresponding to the
directory named by the dirname argument. The directory stream is
positioned at the first entry. If the type DIR is implemented using a file
descriptor, applications shall only be able to open up to a total of
{OPEN_MAX} files and directories.
But we are not sure whether our opinion is correct, so we send this mail.
Thank you!
Sincerely Yours
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Beijing Sunnorth eCos Maintainer Group
Maintainers:
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[EMAIL PROTECTED]
Bejing Sunnorth Electronic Technology Co.,LTD
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