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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* | |
| 3 * The contents of this file are subject to the Mozilla Public | |
| 4 * License Version 1.1 (the "License"); you may not use this file | |
| 5 * except in compliance with the License. You may obtain a copy of | |
| 6 * the License at http://www.mozilla.org/MPL/ | |
| 7 * | |
| 8 * Software distributed under the License is distributed on an "AS | |
| 9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or | |
| 10 * implied. See the License for the specific language governing | |
| 11 * rights and limitations under the License. | |
| 12 * | |
| 13 * The Original Code is the Netscape Portable Runtime (NSPR). | |
| 14 * | |
| 15 * The Initial Developer of the Original Code is Netscape | |
| 16 * Communications Corporation. Portions created by Netscape are | |
| 17 * Copyright (C) 1998-2000 Netscape Communications Corporation. All | |
| 18 * Rights Reserved. | |
| 19 * | |
| 20 * Contributor(s): | |
| 21 * | |
| 22 * Alternatively, the contents of this file may be used under the | |
| 23 * terms of the GNU General Public License Version 2 or later (the | |
| 24 * "GPL"), in which case the provisions of the GPL are applicable | |
| 25 * instead of those above. If you wish to allow use of your | |
| 26 * version of this file only under the terms of the GPL and not to | |
| 27 * allow others to use your version of this file under the MPL, | |
| 28 * indicate your decision by deleting the provisions above and | |
| 29 * replace them with the notice and other provisions required by | |
| 30 * the GPL. If you do not delete the provisions above, a recipient | |
| 31 * may use your version of this file under either the MPL or the | |
| 32 * GPL. | |
| 33 */ | |
| 34 | |
| 35 #ifndef prmon_h___ | |
| 36 #define prmon_h___ | |
| 37 | |
| 38 #include "prtypes.h" | |
| 39 #include "prinrval.h" | |
| 40 | |
| 41 PR_BEGIN_EXTERN_C | |
| 42 | |
| 43 typedef struct PRMonitor PRMonitor; | |
| 44 | |
| 45 /* | |
| 46 ** Create a new monitor. Monitors are re-entrant locks with a single built-in | |
| 47 ** condition variable. | |
| 48 ** | |
| 49 ** This may fail if memory is tight or if some operating system resource | |
| 50 ** is low. | |
| 51 */ | |
| 52 NSPR_API(PRMonitor*) PR_NewMonitor(void); | |
| 53 | |
| 54 /* | |
| 55 ** Destroy a monitor. The caller is responsible for guaranteeing that the | |
| 56 ** monitor is no longer in use. There must be no thread waiting on the monitor's | |
| 57 ** condition variable and that the lock is not held. | |
| 58 ** | |
| 59 */ | |
| 60 NSPR_API(void) PR_DestroyMonitor(PRMonitor *mon); | |
| 61 | |
| 62 /* | |
| 63 ** Enter the lock associated with the monitor. If the calling thread currently | |
| 64 ** is in the monitor, the call to enter will silently succeed. In either case, | |
| 65 ** it will increment the entry count by one. | |
| 66 */ | |
| 67 NSPR_API(void) PR_EnterMonitor(PRMonitor *mon); | |
| 68 | |
| 69 /* | |
| 70 ** Decrement the entry count associated with the monitor. If the decremented | |
| 71 ** entry count is zero, the monitor is exited. Returns PR_FAILURE if the | |
| 72 ** calling thread has not entered the monitor. | |
| 73 */ | |
| 74 NSPR_API(PRStatus) PR_ExitMonitor(PRMonitor *mon); | |
| 75 | |
| 76 /* | |
| 77 ** Wait for a notify on the monitor's condition variable. Sleep for "ticks" | |
| 78 ** amount of time (if "ticks" is PR_INTERVAL_NO_TIMEOUT then the sleep is | |
| 79 ** indefinite). | |
| 80 ** | |
| 81 ** While the thread is waiting it exits the monitor (as if it called | |
| 82 ** PR_ExitMonitor as many times as it had called PR_EnterMonitor). When | |
| 83 ** the wait has finished the thread regains control of the monitors lock | |
| 84 ** with the same entry count as before the wait began. | |
| 85 ** | |
| 86 ** The thread waiting on the monitor will be resumed when the monitor is | |
| 87 ** notified (assuming the thread is the next in line to receive the | |
| 88 ** notify) or when the "ticks" timeout elapses. | |
| 89 ** | |
| 90 ** Returns PR_FAILURE if the caller has not entered the monitor. | |
| 91 */ | |
| 92 NSPR_API(PRStatus) PR_Wait(PRMonitor *mon, PRIntervalTime ticks); | |
| 93 | |
| 94 /* | |
| 95 ** Notify a thread waiting on the monitor's condition variable. If a thread | |
| 96 ** is waiting on the condition variable (using PR_Wait) then it is awakened | |
| 97 ** and attempts to reenter the monitor. | |
| 98 */ | |
| 99 NSPR_API(PRStatus) PR_Notify(PRMonitor *mon); | |
| 100 | |
| 101 /* | |
| 102 ** Notify all of the threads waiting on the monitor's condition variable. | |
| 103 ** All of threads waiting on the condition are scheduled to reenter the | |
| 104 ** monitor. | |
| 105 */ | |
| 106 NSPR_API(PRStatus) PR_NotifyAll(PRMonitor *mon); | |
| 107 | |
| 108 PR_END_EXTERN_C | |
| 109 | |
| 110 #endif /* prmon_h___ */ | |
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Chromium Code Reviews
Issue 665543002:
Remove third_party/npapi/npspy. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master