Mercurial > trustbridge > nss-cmake-static
comparison nspr/pr/include/private/pprmwait.h @ 0:1e5118fa0cb1
This is NSS with a Cmake Buildsyste
To compile a static NSS library for Windows we've used the
Chromium-NSS fork and added a Cmake buildsystem to compile
it statically for Windows. See README.chromium for chromium
changes and README.trustbridge for our modifications.
| author | Andre Heinecke <andre.heinecke@intevation.de> |
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| date | Mon, 28 Jul 2014 10:47:06 +0200 |
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| -1:000000000000 | 0:1e5118fa0cb1 |
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #if defined(_PPRMWAIT_H) | |
| 7 #else | |
| 8 #define _PPRMWAIT_H | |
| 9 | |
| 10 #include "prlock.h" | |
| 11 #include "prcvar.h" | |
| 12 #include "prclist.h" | |
| 13 #include "prthread.h" | |
| 14 | |
| 15 #define MAX_POLLING_INTERVAL 100 | |
| 16 #define _PR_POLL_COUNT_FUDGE 64 | |
| 17 #define _PR_DEFAULT_HASH_LENGTH 59 | |
| 18 | |
| 19 /* | |
| 20 * Our hash table resolves collisions by open addressing with | |
| 21 * double hashing. See Cormen, Leiserson, and Rivest, | |
| 22 * Introduction to Algorithms, p. 232, The MIT Press, 1990. | |
| 23 */ | |
| 24 | |
| 25 #define _MW_HASH(a, m) ((((PRUptrdiff)(a) >> 4) ^ ((PRUptrdiff)(a) >> 10)) % (m)) | |
| 26 #define _MW_HASH2(a, m) (1 + ((((PRUptrdiff)(a) >> 4) ^ ((PRUptrdiff)(a) >> 10)) % (m - 2))) | |
| 27 #define _MW_ABORTED(_rv) \ | |
| 28 ((PR_FAILURE == (_rv)) && (PR_PENDING_INTERRUPT_ERROR == PR_GetError())) | |
| 29 | |
| 30 typedef enum {_prmw_success, _prmw_rehash, _prmw_error} _PR_HashStory; | |
| 31 | |
| 32 typedef struct _PRWaiterHash | |
| 33 { | |
| 34 PRUint16 count; /* current number in hash table */ | |
| 35 PRUint16 length; /* current size of the hash table */ | |
| 36 PRRecvWait *recv_wait; /* hash table of receive wait objects */ | |
| 37 } _PRWaiterHash; | |
| 38 | |
| 39 typedef enum {_prmw_running, _prmw_stopping, _prmw_stopped} PRMWGroupState; | |
| 40 | |
| 41 struct PRWaitGroup | |
| 42 { | |
| 43 PRCList group_link; /* all groups are linked to each other */ | |
| 44 PRCList io_ready; /* list of I/O requests that are ready */ | |
| 45 PRMWGroupState state; /* state of this group (so we can shut down) */ | |
| 46 | |
| 47 PRLock *ml; /* lock for synchronizing this wait group */ | |
| 48 PRCondVar *io_taken; /* calling threads notify when they take I/O */ | |
| 49 PRCondVar *io_complete; /* calling threads wait here for completions */ | |
| 50 PRCondVar *new_business; /* polling thread waits here more work */ | |
| 51 PRCondVar *mw_manage; /* used to manage group lists */ | |
| 52 PRThread* poller; /* thread that's actually doing the poll() */ | |
| 53 PRUint16 waiting_threads; /* number of threads waiting for recv */ | |
| 54 PRUint16 polling_count; /* number of elements in the polling list */ | |
| 55 PRUint32 p_timestamp; /* pseudo-time group had element removed */ | |
| 56 PRPollDesc *polling_list; /* list poller builds for polling */ | |
| 57 PRIntervalTime last_poll; /* last time we polled */ | |
| 58 _PRWaiterHash *waiter; /* pointer to hash table of wait receive objects */ | |
| 59 | |
| 60 #ifdef WINNT | |
| 61 /* | |
| 62 * On NT, idle threads are responsible for getting completed i/o. | |
| 63 * They need to add completed i/o to the io_ready list. Since | |
| 64 * idle threads cannot use nspr locks, we have to use an md lock | |
| 65 * to protect the io_ready list. | |
| 66 */ | |
| 67 _MDLock mdlock; /* protect io_ready, waiter, and wait_list */ | |
| 68 PRCList wait_list; /* used in place of io_complete. reuse | |
| 69 * waitQLinks in the PRThread structure. */ | |
| 70 #endif /* WINNT */ | |
| 71 }; | |
| 72 | |
| 73 /********************************************************************** | |
| 74 *********************************************************************** | |
| 75 ******************** Wait group enumerations ************************** | |
| 76 *********************************************************************** | |
| 77 **********************************************************************/ | |
| 78 typedef struct _PRGlobalState | |
| 79 { | |
| 80 PRCList group_list; /* master of the group list */ | |
| 81 PRWaitGroup *group; /* the default (NULL) group */ | |
| 82 } _PRGlobalState; | |
| 83 | |
| 84 #ifdef WINNT | |
| 85 extern PRStatus NT_HashRemoveInternal(PRWaitGroup *group, PRFileDesc *fd); | |
| 86 #endif | |
| 87 | |
| 88 typedef enum {_PR_ENUM_UNSEALED=0, _PR_ENUM_SEALED=0x0eadface} _PREnumSeal; | |
| 89 | |
| 90 struct PRMWaitEnumerator | |
| 91 { | |
| 92 PRWaitGroup *group; /* group this enumerator is bound to */ | |
| 93 PRThread *thread; /* thread in midst of an enumeration */ | |
| 94 _PREnumSeal seal; /* trying to detect deleted objects */ | |
| 95 PRUint32 p_timestamp; /* when enumeration was (re)started */ | |
| 96 PRRecvWait **waiter; /* pointer into hash table */ | |
| 97 PRUintn index; /* position in hash table */ | |
| 98 void *pad[4]; /* some room to grow */ | |
| 99 }; | |
| 100 | |
| 101 #endif /* defined(_PPRMWAIT_H) */ | |
| 102 | |
| 103 /* pprmwait.h */ |