1.2 KiB
PRFileDesc
A file descriptor used to represent any open file, such as a normal file, an end point of a pipe, or a socket (end point of network communication).
Syntax
#include <prio.h>
struct PRFileDesc {
PRIOMethods *methods;
PRFilePrivate *secret;
PRFileDesc *lower, *higher;
void (*dtor)(PRFileDesc *fd);
PRDescIdentity identity;
};
typedef struct PRFileDesc PRFileDesc;
Parameters
methods-
The I/O methods table. See {ref}
PRIOMethods. secret-
Layer-dependent implementation data. See {ref}
PRFilePrivate. lower-
Pointer to lower layer.
higher-
Pointer to higher layer.
dtor-
A destructor function for the layer.
identity-
Identity of this particular layer. See {ref}
PRDescIdentity.
Description
The fields of this structure are significant only if you are
implementing a layer on top of NSPR, such as SSL. Otherwise, you use
functions such as {ref}PR_Open and {ref}PR_NewTCPSocket to obtain a file
descriptor, which you should treat as an opaque structure.
For more details about the use of {ref}PRFileDesc and related structures,
see File Descriptor Types.