/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998-2000 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL"), in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your
* version of this file only under the terms of the GPL and not to
* allow others to use your version of this file under the MPL,
* indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient
* may use your version of this file under either the MPL or the
* GPL.
*/
#ifndef prinit_h___
#define prinit_h___
#include "prthread.h"
#include "prtypes.h"
#include "prwin16.h"
#include <stdio.h>
PR_BEGIN_EXTERN_C
/************************************************************************/
/**************************IDENTITY AND VERSIONING***********************/
/************************************************************************/
/*
** NSPR's name, this should persist until at least the turn of the
** century.
*/
#define PR_NAME "NSPR"
/*
** NSPR's version is used to determine the likelihood that the version you
** used to build your component is anywhere close to being compatible with
** what is in the underlying library.
**
** The format of the version string is
** "<major version>.<minor version>[.<patch level>] [<Beta>]"
*/
#define PR_VERSION "4.5 Beta"
#define PR_VMAJOR 4
#define PR_VMINOR 5
#define PR_VPATCH 0
#define PR_BETA PR_TRUE
/*
** PRVersionCheck
**
** The basic signature of the function that is called to provide version
** checking. The result will be a boolean that indicates the likelihood
** that the underling library will perform as the caller expects.
**
** The only argument is a string, which should be the verson identifier
** of the library in question. That string will be compared against an
** equivalent string that represents the actual build version of the
** exporting library.
**
** The result will be the logical union of the directly called library
** and all dependent libraries.
*/
typedef PRBool (*PRVersionCheck)(const char*);
/*
** PR_VersionCheck
**
** NSPR's existance proof of the version check function.
**
** Note that NSPR has no cooperating dependencies.
*/
NSPR_API(PRBool) PR_VersionCheck(const char *importedVersion);
/************************************************************************/
/*******************************INITIALIZATION***************************/
/************************************************************************/
/*
** Initialize the runtime. Attach a thread object to the currently
** executing native thread of type "type".
**
** The specificaiton of 'maxPTDs' is ignored.
*/
NSPR_API(void) PR_Init(
PRThreadType type, PRThreadPriority priority, PRUintn maxPTDs);
/*
** And alternate form of initialization, one that may become the default if
** not the only mechanism, provides a method to get the NSPR runtime init-
** ialized and place NSPR between the caller and the runtime library. This
** allows main() to be treated as any other thread root function, signalling
** its compeletion by returning and allowing the runtime to coordinate the
** completion of the other threads of the runtime.
**
** The priority of the main (or primordial) thread will be PR_PRIORITY_NORMAL.
** The thread may adjust its own priority by using PR_SetPriority(), though
** at this time the support for priorities is somewhat weak.
**
** The specificaiton of 'maxPTDs' is ignored.
**
** The value returned by PR_Initialize is the value returned from the root
** function, 'prmain'.
*/
typedef PRIntn (PR_CALLBACK *PRPrimordialFn)(PRIntn argc, char **argv);
NSPR_API(PRIntn) PR_Initialize(
PRPrimordialFn prmain, PRIntn argc, char **argv, PRUintn maxPTDs);
/*
** Return PR_TRUE if PR_Init has already been called.
*/
NSPR_API(PRBool) PR_Initialized(void);
/*
* Perform a graceful shutdown of NSPR. PR_Cleanup() may be called by
* the primordial thread near the end of the main() function.
*
* PR_Cleanup() attempts to synchronize the natural termination of
* process. It does that by blocking the caller, if and only if it is
* the primordial thread, until the number of user threads has dropped
* to zero. When the primordial thread returns from main(), the process
* will immediately and silently exit. That is, it will (if necessary)
* forcibly terminate any existing threads and exit without significant
* blocking and there will be no error messages or core files.
*
* PR_Cleanup() returns PR_SUCCESS if NSPR is successfully shutdown,
* or PR_FAILURE if the calling thread of this function is not the
* primordial thread.
*/
NSPR_API(PRStatus) PR_Cleanup(void);
/*
** Disable Interrupts
** Disables timer signals used for pre-emptive scheduling.
*/
NSPR_API(void) PR_DisableClockInterrupts(void);
/*
** Enables Interrupts
** Enables timer signals used for pre-emptive scheduling.
*/
NSPR_API(void) PR_EnableClockInterrupts(void);
/*
** Block Interrupts
** Blocks the timer signal used for pre-emptive scheduling
*/
NSPR_API(void) PR_BlockClockInterrupts(void);
/*
** Unblock Interrupts
** Unblocks the timer signal used for pre-emptive scheduling
*/
NSPR_API(void) PR_UnblockClockInterrupts(void);
/*
** Create extra virtual processor threads. Generally used with MP systems.
*/
NSPR_API(void) PR_SetConcurrency(PRUintn numCPUs);
/*
** Control the method and size of the file descriptor (PRFileDesc*)
** cache used by the runtime. Setting 'high' to zero is for performance,
** any other value probably for debugging (see memo on FD caching).
*/
NSPR_API(PRStatus) PR_SetFDCacheSize(PRIntn low, PRIntn high);
/*
* Cause an immediate, nongraceful, forced termination of the process.
* It takes a PRIntn argument, which is the exit status code of the
* process.
*/
NSPR_API(void) PR_ProcessExit(PRIntn status);
/*
** Abort the process in a non-graceful manner. This will cause a core file,
** call to the debugger or other moral equivalent as well as causing the
** entire process to stop.
*/
NSPR_API(void) PR_Abort(void);
/*
****************************************************************
*
* Module initialization:
*
****************************************************************
*/
typedef struct PRCallOnceType {
PRIntn initialized;
PRInt32 inProgress;
PRStatus status;
} PRCallOnceType;
typedef PRStatus (PR_CALLBACK *PRCallOnceFN)(void);
typedef PRStatus (PR_CALLBACK *PRCallOnceWithArgFN)(void *arg);
NSPR_API(PRStatus) PR_CallOnce(
PRCallOnceType *once,
PRCallOnceFN func
);
NSPR_API(PRStatus) PR_CallOnceWithArg(
PRCallOnceType *once,
PRCallOnceWithArgFN func,
void *arg
);
PR_END_EXTERN_C
#endif /* prinit_h___ */