Delete bundled copy of NSS and replace with README.

nspr/pr/include/private/pprmwait.h

-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#if defined(_PPRMWAIT_H)
-#else
-#define _PPRMWAIT_H
-
-#include "prlock.h"
-#include "prcvar.h"
-#include "prclist.h"
-#include "prthread.h"
-
-#define MAX_POLLING_INTERVAL 100
-#define _PR_POLL_COUNT_FUDGE 64
-#define _PR_DEFAULT_HASH_LENGTH 59
-
-/*
- * Our hash table resolves collisions by open addressing with
- * double hashing.  See Cormen, Leiserson, and Rivest,
- * Introduction to Algorithms, p. 232, The MIT Press, 1990.
- */
-
-#define _MW_HASH(a, m) ((((PRUptrdiff)(a) >> 4) ^ ((PRUptrdiff)(a) >> 10)) % (m))
-#define _MW_HASH2(a, m) (1 + ((((PRUptrdiff)(a) >> 4) ^ ((PRUptrdiff)(a) >> 10)) % (m - 2)))
-#define _MW_ABORTED(_rv) \
-    ((PR_FAILURE == (_rv)) && (PR_PENDING_INTERRUPT_ERROR == PR_GetError()))
-
-typedef enum {_prmw_success, _prmw_rehash, _prmw_error} _PR_HashStory;
-
-typedef struct _PRWaiterHash
-{
-    PRUint16 count;             /* current number in hash table */
-    PRUint16 length;            /* current size of the hash table */
-    PRRecvWait *recv_wait;      /* hash table of receive wait objects */
-} _PRWaiterHash;
-
-typedef enum {_prmw_running, _prmw_stopping, _prmw_stopped} PRMWGroupState;
-
-struct PRWaitGroup
-{
-    PRCList group_link;         /* all groups are linked to each other */
-    PRCList io_ready;           /* list of I/O requests that are ready */
-    PRMWGroupState state;       /* state of this group (so we can shut down) */
-
-    PRLock *ml;                 /* lock for synchronizing this wait group */
-    PRCondVar *io_taken;        /* calling threads notify when they take I/O */
-    PRCondVar *io_complete;     /* calling threads wait here for completions */
-    PRCondVar *new_business;    /* polling thread waits here more work */
-    PRCondVar *mw_manage;       /* used to manage group lists */
-    PRThread* poller;           /* thread that's actually doing the poll() */
-    PRUint16 waiting_threads;   /* number of threads waiting for recv */
-    PRUint16 polling_count;     /* number of elements in the polling list */
-    PRUint32 p_timestamp;       /* pseudo-time group had element removed */
-    PRPollDesc *polling_list;   /* list poller builds for polling */
-    PRIntervalTime last_poll;   /* last time we polled */
-    _PRWaiterHash *waiter;      /* pointer to hash table of wait receive objects */
-
-#ifdef WINNT
-    /*
-     * On NT, idle threads are responsible for getting completed i/o.
-     * They need to add completed i/o to the io_ready list.  Since
-     * idle threads cannot use nspr locks, we have to use an md lock
-     * to protect the io_ready list.
-     */
-    _MDLock mdlock;             /* protect io_ready, waiter, and wait_list */
-    PRCList wait_list;          /* used in place of io_complete.  reuse
-                                 * waitQLinks in the PRThread structure. */
-#endif /* WINNT */
-};
-
-/**********************************************************************
-***********************************************************************
-******************** Wait group enumerations **************************
-***********************************************************************
-**********************************************************************/
-typedef struct _PRGlobalState
-{
-    PRCList group_list;         /* master of the group list */
-    PRWaitGroup *group;         /* the default (NULL) group */
-} _PRGlobalState;
-
-#ifdef WINNT
-extern PRStatus NT_HashRemoveInternal(PRWaitGroup *group, PRFileDesc *fd);
-#endif
-
-typedef enum {_PR_ENUM_UNSEALED=0, _PR_ENUM_SEALED=0x0eadface} _PREnumSeal;
-
-struct PRMWaitEnumerator
-{
-    PRWaitGroup *group;       /* group this enumerator is bound to */
-    PRThread *thread;               /* thread in midst of an enumeration */
-    _PREnumSeal seal;               /* trying to detect deleted objects */
-    PRUint32 p_timestamp;           /* when enumeration was (re)started */
-    PRRecvWait **waiter;            /* pointer into hash table */
-    PRUintn index;                  /* position in hash table */
-    void *pad[4];                   /* some room to grow */
-};
-
-#endif /* defined(_PPRMWAIT_H) */
-
-/* pprmwait.h */