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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /*
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- /*
- ** File: pprio.h
- **
- ** Description: Private definitions for I/O related structures
- */
-
- #ifndef pprio_h___
- #define pprio_h___
-
- #include "prtypes.h"
- #include "prio.h"
-
- NSPR_BEGIN_EXTERN_C
-
-
- #define _PR_FILEDESC_OPEN 0xaaaaaaaa /* 1010101... */
- #define _PR_FILEDESC_CLOSED 0x55555555 /* 0101010... */
- #define _PR_FILEDESC_FREED 0x11111111
-
- /************************************************************************/
- /************************************************************************/
-
- /* Return the method tables for files, tcp sockets and udp sockets */
- PR_EXTERN(PRIOMethods*) PR_GetFileMethods(void);
- PR_EXTERN(PRIOMethods*) PR_GetTCPMethods(void);
- PR_EXTERN(PRIOMethods*) PR_GetUDPMethods(void);
-
- /*
- ** Convert a NSPR Socket Handle to a Native Socket handle.
- ** This function will be obsoleted with the next release; avoid using it.
- */
- PR_EXTERN(PRInt32) PR_FileDesc2NativeHandle(PRFileDesc *);
- PR_EXTERN(void) PR_ChangeFileDescNativeHandle(PRFileDesc *, PRInt32);
- PR_EXTERN(PRFileDesc*) PR_AllocFileDesc(PRInt32 osfd, PRIOMethods *methods);
- PR_EXTERN(void) PR_FreeFileDesc(PRFileDesc *fd);
- /*
- ** Import an existing OS file to NSPR.
- */
- PR_EXTERN(PRFileDesc*) PR_ImportFile(PRInt32 osfd);
- PR_EXTERN(PRFileDesc*) PR_ImportTCPSocket(PRInt32 osfd);
- PR_EXTERN(PRFileDesc*) PR_ImportUDPSocket(PRInt32 osfd);
-
- /*
- ** Create a new Socket; this function is obsolete.
- */
- PR_EXTERN(PRFileDesc*) PR_Socket(PRInt32 domain, PRInt32 type, PRInt32 proto);
-
- /* FUNCTION: PR_LockFile
- ** DESCRIPTION:
- ** Lock a file for exclusive access.
- ** RETURNS:
- ** PR_SUCCESS when the lock is held
- ** PR_FAILURE otherwise
- */
- PR_EXTERN(PRStatus) PR_LockFile(PRFileDesc *fd);
-
- /* FUNCTION: PR_TLockFile
- ** DESCRIPTION:
- ** Test and Lock a file for exclusive access. Do not block if the
- ** file cannot be locked immediately.
- ** RETURNS:
- ** PR_SUCCESS when the lock is held
- ** PR_FAILURE otherwise
- */
- PR_EXTERN(PRStatus) PR_TLockFile(PRFileDesc *fd);
-
- /* FUNCTION: PR_UnlockFile
- ** DESCRIPTION:
- ** Unlock a file which has been previously locked successfully by this
- ** process.
- ** RETURNS:
- ** PR_SUCCESS when the lock is released
- ** PR_FAILURE otherwise
- */
- PR_EXTERN(PRStatus) PR_UnlockFile(PRFileDesc *fd);
-
- #ifdef WIN32
- /* FUNCTION: PR_NTFast_AcceptRead
- ** DESCRIPTION:
- ** NT has the notion of an "accept context", which is only needed in
- ** order to make certain calls. By default, a socket connected via
- ** AcceptEx can only do a limited number of things without updating
- ** the acceptcontext. The generic version of PR_AcceptRead always
- ** updates the accept context. This version does not.
- **/
- PR_EXTERN(PRInt32) PR_NTFast_AcceptRead(PRFileDesc *sd, PRFileDesc **nd,
- PRNetAddr **raddr, void *buf, PRInt32 amount, PRIntervalTime t);
-
- typedef void (*_PR_AcceptTimeoutCallback)(void *);
-
- /* FUNCTION: PR_NTFast_AcceptRead_WithTimeoutCallback
- ** DESCRIPTION:
- ** The AcceptEx call combines the accept with the read function. However,
- ** our daemon threads need to be able to wakeup and reliably flush their
- ** log buffers if the Accept times out. However, with the current blocking
- ** interface to AcceptRead, there is no way for us to timeout the Accept;
- ** this is because when we timeout the Read, we can close the newly
- ** socket and continue; but when we timeout the accept itself, there is no
- ** new socket to timeout. So instead, this version of the function is
- ** provided. After the initial timeout period elapses on the accept()
- ** portion of the function, it will call the callback routine and then
- ** continue the accept. If the timeout occurs on the read, it will
- ** close the connection and return error.
- */
- PR_EXTERN(PRInt32) PR_NTFast_AcceptRead_WithTimeoutCallback(
- PRFileDesc *sd,
- PRFileDesc **nd,
- PRNetAddr **raddr,
- void *buf,
- PRInt32 amount,
- PRIntervalTime t,
- _PR_AcceptTimeoutCallback callback,
- void *callback_arg);
-
- /* FUNCTION: PR_NTFast_Accept
- ** DESCRIPTION:
- ** NT has the notion of an "accept context", which is only needed in
- ** order to make certain calls. By default, a socket connected via
- ** AcceptEx can only do a limited number of things without updating
- ** the acceptcontext. The generic version of PR_Accept always
- ** updates the accept context. This version does not.
- **/
- PR_EXTERN(PRFileDesc*) PR_NTFast_Accept(PRFileDesc *fd, PRNetAddr *addr,
- PRIntervalTime timeout);
-
- /* FUNCTION: PR_NTFast_Update
- ** DESCRIPTION:
- ** For sockets accepted with PR_NTFast_Accept or PR_NTFastAcceptRead,
- ** this function will update the accept context for those sockets,
- ** so that the socket can make general purpose socket calls.
- ** Without calling this, the only operations supported on the socket
- ** Are PR_Read, PR_Write, PR_Transmitfile, and PR_Close.
- */
- PR_EXTERN(void) PR_NTFast_UpdateAcceptContext(PRFileDesc *acceptSock,
- PRFileDesc *listenSock);
-
-
- /* FUNCTION: PR_NT_UseNonblock
- ** DESCRIPTION:
- ** This function only works on NT. It tells nspr to use nonblocking io
- ** rather than async IO. There is no way to use some of each. This
- ** function should be called immediately after calling PR_Init().
- **
- ** WARNING: THIS FUNCTION IS A TEMPORARY HACK AND WILL BE REMOVED SHORTLY
- ** (LIKE ALL FUNCTIONS IN THE PRIVATE AREA). DO NOT USE THIS FUNCTION AT
- ** ALL WITHOUT CONTACTING mbelshe@netscape.com.
- */
- PR_EXTERN(void) PR_NT_UseNonblock();
-
- #endif /* WIN32 */
-
- NSPR_END_EXTERN_C
-
- #endif /* pprio_h___ */
-