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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * 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 mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"

%{C++
#include "prthread.h"

#define NS_THREAD_CID                                \
{ /* 85CE5510-7808-11d3-A181-0050041CAF44 */         \
    0x85ce5510,                                      \
    0x7808,                                          \
    0x11d3,                                          \
    {0xa1, 0x81, 0x00, 0x50, 0x04, 0x1c, 0xaf, 0x44} \
}

#define NS_THREAD_CONTRACTID "@mozilla.org/thread;1"
#define NS_THREAD_CLASSNAME "Thread"
#if 0
%}

typedef PRUint32 PRThreadPriority;
typedef PRUint32 PRThreadScope;
typedef PRUint32 PRThreadState;

%{C++
#endif
%}

interface nsIRunnable;

[ptr] native PRThread(PRThread);

[scriptable, uuid(6be5e380-6886-11d3-9382-00104ba0fd40)]
interface nsIThread : nsISupports
{
    // These must all match the values used in prthread.h
    const PRUint32 PRIORITY_LOW    = 0;
    const PRUint32 PRIORITY_NORMAL = 1;
    const PRUint32 PRIORITY_HIGH   = 2;
    const PRUint32 PRIORITY_URGENT = 3;

    const PRUint32 SCOPE_LOCAL  = 0;
    const PRUint32 SCOPE_GLOBAL = 1;
    const PRUint32 SCOPE_BOUND  = 2;

    const PRUint32 STATE_JOINABLE   = 0;
    const PRUint32 STATE_UNJOINABLE = 1;

    void join();
    void interrupt();

    attribute PRThreadPriority       priority;
    readonly attribute PRThreadScope scope;
    readonly attribute PRThreadState state;
    
    [noscript] PRThread GetPRThread();
    
    void init(in nsIRunnable aRunnable,
              in PRUint32 aStackSize,
              in PRThreadPriority aPriority,
              in PRThreadScope    aScope,
              in PRThreadState    aState);

    /*
     * Get the currently running thread (really a static method sort of thing).
     */
    readonly attribute nsIThread currentThread;
    
    /*
     * Sleep to at least this many milliseconds (only works on currrent thread).
     */
    void sleep(in PRUint32 msec);

%{C++
    // returns the nsIThread for the current thread:
    static NS_COM nsresult GetCurrent(nsIThread* *result);

    // returns the nsIThread for an arbitrary PRThread:
    static NS_COM nsresult GetIThread(PRThread* prthread, nsIThread* *result);

    // initializes the "main" thread (really, just saves the current thread
    // at time of calling. meant to be called once at app startup, in lieu
    // of proper static initializers, to save the primordial thread
    // for later recall.)
    static NS_COM nsresult SetMainThread();

    // return the "main" thread
    static NS_COM nsresult GetMainThread(nsIThread **result);

    static NS_COM PRBool IsMainThread(); 
%}
};

%{C++
extern NS_COM nsresult
NS_NewThread(nsIThread* *result, 
             nsIRunnable* runnable,
             PRUint32 stackSize = 0,
             PRThreadState state = PR_UNJOINABLE_THREAD,
             PRThreadPriority priority = PR_PRIORITY_NORMAL,
             PRThreadScope scope = PR_GLOBAL_THREAD);

extern NS_COM nsresult
NS_NewThread(nsIThread* *result, 
             PRUint32 stackSize = 0,
             PRThreadState state = PR_UNJOINABLE_THREAD,
             PRThreadPriority priority = PR_PRIORITY_NORMAL,
             PRThreadScope scope = PR_GLOBAL_THREAD);
%}