Download Altera Nios II Specifications

NII5V2
2015.05.14
fstat()
14-55
Description
The close() function is the standard UNIX-style close() function, which closes the file descriptor fd.
Calls to close() are thread-safe only if the implementation of close() provided by the driver that is
manipulated is thread-safe.
Valid values for the fd parameter are: stdout, stdin, and stderr, or any value returned from a call to
open().
Return
The return value is zero on success, and –1 otherwise. If an error occurs, errno is set to indicate the cause.
Related Information
newlib Library Documentation
fstat()
Prototype
int fstat (int fd, struct stat *st)
Commonly Called By
C/C++ programs
Device drivers
Thread-safe
See description.
Available from ISR
No.
Include
<sys/stat.h>
Description
The fstat() function obtains information about the capabilities of an open file descriptor. The
underlying device driver fills in the input st structure with a description of its functionality. Refer to the
header file sys/stat.h provided with the compiler for the available options.
By default, file descriptors are marked as character devices, unless the underlying driver provides its own
implementation of the fstat() function.
Calls to fstat() are thread-safe only if the implementation of fstat() provided by the driver that is
manipulated is thread-safe.
Valid values for the fd parameter are: stdout, stdin, and stderr, or any value returned from a call to
open().
HAL API Reference
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