| /freebsd/sys/kern/ |
| H A D | kern_lockf.c | 1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
29 /*-
70 #include <sys/lock.h>
92 static MALLOC_DEFINE(M_LOCKF, "lockf", "Byte-range locking structures");
172 * This structure is used to keep track of both local and remote lock
174 * the lock owner structure. Each possible lock owner (local proc for
179 * If a lock owner has a lock that blocks some other lock or a lock
180 * that is waiting for some other lock, it also has a vertex in the
184 * (s) locked by state->ls_lock
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| H A D | kern_rwlock.c | 1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
29 * Machine independent bits of reader/writer lock implementation.
41 #include <sys/lock.h>
59 PMC_SOFT_DECLARE( , , lock, failed);
63 * Return the rwlock address when the lock cookie address is provided.
71 static void db_show_rwlock(const struct lock_object *lock);
73 static void assert_rw(const struct lock_object *lock, int what);
74 static void lock_rw(struct lock_object *lock, uintptr_t how);
75 static int trylock_rw(struct lock_object *lock, uintptr_t how);
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| H A D | kern_sx.c | 1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
34 * deterministic lock granting behavior, so that slocks and xlocks are
37 * Priority propagation will not generally raise the priority of lock holders,
50 #include <sys/lock.h>
73 PMC_SOFT_DECLARE( , , lock, failed);
102 while (_giantcnt--) \
109 * Returns true if an exclusive lock is recursed. It assumes
110 * curthread currently has an exclusive lock.
112 #define sx_recursed(sx) ((sx)->sx_recurse != 0)
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| /freebsd/contrib/ofed/opensm/include/complib/ |
| H A D | cl_passivelock.h | 3 * Copyright (c) 2002-2010 Mellanox Technologies LTD. All rights reserved.
4 * Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
16 * - Redistributions of source code must retain the above
20 * - Redistributions in binary form must reproduce the above
38 * This file contains the passive lock, which synchronizes passive threads.
39 * The passive lock allows multiple readers to access a resource
41 * Several writer threads are allowed - but only one can write at a given time
58 /****h* Component Library/Passive Lock
60 * Passive Lock
63 * The Passive Lock provides synchronization between multiple threads that
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| /freebsd/contrib/llvm-project/clang/lib/StaticAnalyzer/Checkers/ |
| H A D | PthreadLockChecker.cpp | 1 //===--- PthreadLockChecker.cpp - Check for locking problems ---*- C++ -*--===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
10 // * PthreadLockChecker, a simple lock -> unlock checker.
18 //===----------------------------------------------------------------------===//
201 ProgramStateRef resolvePossiblyDestroyedMutex(ProgramStateRef state,
215 // Lock, Try-lock.
252 checkRegionChanges(ProgramStateRef State, const InvalidatedSymbols *Symbols,
256 void printState(raw_ostream &Out, ProgramStateRef State, const char *NL,
270 new BugType{CheckNames[CheckKind], "Double locking", "Lock checker"}); in initBugType()
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| /freebsd/sys/ofed/drivers/infiniband/core/ |
| H A D | ib_iwcm.c | 1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
21 * - Redistributions of source code must retain the above
25 * - Redistributions in binary form must reproduce the above
41 #include <linux/dma-mapping.h>
75 index = -reason; in iwcm_reject_msg()
97 * The following services provide a mechanism for pre-allocating iwcm_work
98 * elements. The design pre-allocates them based on the cm_id type:
112 * be processed. cm_event_handler() returns -ENOMEM in this case. Its up
124 if (list_empty(&cm_id_priv->work_free_list)) in get_work()
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| H A D | ib_multicast.c | 1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
16 * - Redistributions of source code must retain the above
20 * - Redistributions in binary form must reproduce the above
39 #include <linux/dma-mapping.h>
67 spinlock_t lock; member
105 spinlock_t lock; member
112 enum mcast_group_state state; member
124 enum mcast_state state; member
137 struct rb_node *node = port->table.rb_node; in mcast_find()
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| H A D | ib_cm.c | 1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
4 * Copyright (c) 2004-2007 Intel Corporation. All rights reserved.
19 * - Redistributions of source code must retain the above
23 * - Redistributions in binary form must reproduce the above
40 #include <linux/dma-mapping.h>
55 #include <asm/atomic-long.h>
125 spinlock_t lock; member
138 /* Sync on cm change port state */
269 spinlock_t lock; /* Do not acquire inside cm.lock */ member
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| /freebsd/crypto/krb5/src/plugins/audit/test/ |
| H A D | au_test.c | 1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /* plugins/audit/au_test.c - Test Audit plugin implementation */
33 * This test is to verify the JSON-based KDC audit functionality.
37 #include <k5-int.h>
40 #include "k5-thread.h"
51 static k5_mutex_t lock = K5_MUTEX_PARTIAL_INITIALIZER; variable
60 k5_mutex_init(&lock); in open_au()
69 k5_mutex_destroy(&lock); in close_au()
73 /* Log KDC-start event. Returns 0 on success. */
83 k5_mutex_lock(&lock); in j_kdc_start()
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| /freebsd/contrib/ntp/libntp/lib/isc/ |
| H A D | task.c | 2 * Copyright (C) 2004-2012 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1998-2003 Internet Software Consortium.
107 isc_mutex_t lock; member
108 /* Locked by task lock. */
109 task_state_t state; member
118 /* Locked by task manager lock. */
127 #define TASK_SHUTTINGDOWN(t) (((t)->flags & TASK_F_SHUTTINGDOWN) \
139 isc_mutex_t lock; member
144 /* Locked by task manager lock. */
166 #define FINISHED(m) ((m)->exiting && EMPTY((m)->tasks))
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| /freebsd/sys/dev/cxgbe/tom/ |
| H A D | t4_tom_l2t.c | 1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
39 #include <sys/lock.h>
67 if (atomic_fetchadd_int(&e->refcnt, 1) == 0) /* 0 -> 1 transition */ in l2t_hold()
68 atomic_subtract_int(&d->nfree, 1); in l2t_hold()
74 u_int hash, half = d->l2t_siz in l2_hash()
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| /freebsd/sys/compat/linuxkpi/common/src/ |
| H A D | linux_schedule.c | 1 /*-
60 const char *wmesg, long timeout, int state) in linux_add_to_sleepqueue() argument
64 MPASS((state & ~(TASK_PARKED | TASK_NORMAL)) == 0); in linux_add_to_sleepqueue()
66 flags = SLEEPQ_SLEEP | ((state & TASK_INTERRUPTIBLE) != 0 ? in linux_add_to_sleepqueue()
75 if ((state & TASK_INTERRUPTIBLE) != 0) { in linux_add_to_sleepqueue()
77 ret = -sleepq_wait_sig(wchan, 0); in linux_add_to_sleepqueue()
79 ret = -sleepq_timedwait_sig(wchan, 0); in linux_add_to_sleepqueue()
85 ret = -sleepq_timedwait(wchan, 0); in linux_add_to_sleepqueue()
90 if (ret != 0 && ret != -EWOULDBLOCK) { in linux_add_to_sleepqueue()
92 ret = -ERESTARTSYS; in linux_add_to_sleepqueue()
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| /freebsd/contrib/llvm-project/compiler-rt/lib/sanitizer_common/ |
| H A D | sanitizer_mutex.h | 1 //===-- sanitizer_mutex.h ---------------------------------------*- C++ -*-===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
29 void Lock() SANITIZER_ACQUIRE() { in Lock() function
63 // Semaphore provides an OS-dependent way to park/unpark threads.
65 // (destruction-safety).
89 MutexUnchecked = -1,
91 // The leaf mutexes can be locked under any other non-leaf mutex,
93 MutexLeaf = -1,
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| /freebsd/crypto/krb5/src/util/profile/ |
| H A D | prof_set.c | 1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
3 * prof_set.c --- routines that expose the public interfaces for
32 if (profile->magic != PROF_MAGIC_PROFILE) in rw_setup()
35 /* If the profile has no files, create a memory-only data object. */ in rw_setup()
36 if (profile->first_file == NULL) { in rw_setup()
37 profile->first_file = profile_open_memory(); in rw_setup()
38 return (profile->first_file == NULL) ? ENOMEM : 0; in rw_setup()
41 file = profile->first_file; in rw_setup()
46 if (file->data->flags & PROFILE_FILE_DIRTY) { in rw_setup()
51 if ((file->data->flags & PROFILE_FILE_SHARED) != 0) { in rw_setup()
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| /freebsd/contrib/libcxxrt/ |
| H A D | guard.cc | 2 * Copyright 2010-2012 PathScale, Inc. All rights reserved.
29 * guard.cc: Functions for thread-safe static initialisation.
37 * Statics that require initialisation are protected by a 64-bit value. Any
38 * platform that can do 32-bit atomic test and set operations can use this
39 * value as a low-overhead lock. Because statics (in most sane code) are
40 * accessed far more times than they are initialised, this lock implementation
57 // x86 and ARM are the most common little-endian CPUs, so let's have a
66 * The Itanium C++ ABI defines guard words that are 64-bit (32-bit on AArch32)
71 * On many 32-bit platforms, 64-bit atomics are unavailable (or slow) and so we
72 * treat the two halves of the 64-bit word as independent values and establish
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| /freebsd/sys/compat/linuxkpi/common/include/linux/ |
| H A D | wait.h | 1 /*-
81 spinlock_t lock; member
96 long linux_wait_woken(wait_queue_t *wq, unsigned state, long timeout);
98 #define wait_woken(wq, state, timeout) \ argument
99 linux_wait_woken((wq), (state), (timeout))
121 MTX_SYSINIT(name, &(name).lock, spin_lock_name("wqhead"), MTX_DEF)
124 mtx_init(&(wqh)->lock, spin_lock_name("wqhead"), \
126 INIT_LIST_HEAD(&(wqh)->task_list); \
153 * Returns -ERESTARTSYS for a signal, 0 if cond is false after timeout, 1 if
157 #define __wait_event_common(wqh, cond, timeout, state, lock) ({ \ argument
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| /freebsd/sys/dev/cxgbe/ |
| H A D | t4_l2t.c | 1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
38 #include <sys/lock.h>
50 * Module locking notes: There is a RW lock protecting the L2 table as a
52 * under the protection of the table lock, individual entry changes happen
53 * while holding that entry's spinlock. The table lock nests outside the
54 * entry locks. Allocations of new entries take the table lock a
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| H A D | t4_smt.c | 1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
38 #include <sys/lock.h>
50 * Module locking notes: There is a RW lock protecting the SMAC table as a
52 * under the protection of the table lock, individual entry changes happen
53 * while holding that entry's spinlock. The table lock nests outside the
54 * entry locks. Allocations of new entries take the table lock as writers so
56 * take the table lock as readers so multiple entries can be updated in
59 * can change state or increment its ref count during allocation as both of
68 * Allocate a free SMT entry. Must be called with smt_data.lock held.
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| /freebsd/contrib/llvm-project/libcxx/include/__stop_token/ |
| H A D | atomic_unique_lock.h | 1 // -*- C++ -*-
2 //===------
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| /freebsd/share/man/man4/ |
| H A D | uart.4 | 1 .\"-
2 .\" SPDX-License-Identifier: BSD-2-Clause
53 .Bl -tag -compact -width 0x000000
72 EIA RS-232C (CCITT V.24) serial communications interface.
112 It contains the bus attachments and the low-level interrupt handler.
144 .Bl -bullet -compact
182 .Bl -tag -compact -offset "mmmm" -width "mmmm"
193 .Bl -tag -compact -offset "mmmm" -width "mmmm"
195 Invert the pulse (RS-232 logic low = ASSERT, high = CLEAR).
203 state change; not all hardware has this capability.
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| /freebsd/contrib/unbound/contrib/ |
| H A D | unbound_munin_ | 5 # and use munin-node-configure (--suggest, --shell).
9 # To install; enable statistics and unbound-control in unbound.conf
10 # server: extended-statistics: yes
11 # statistics-cumulative: no
12 # statistics-interval: 0
13 # remote-control: control-enable: yes
14 # Run the command unbound-control-setup to generate the key files.
17 # unbound_conf - where the unbound.conf file is located.
18 # unbound_control - where to find unbound-control executable.
19 # spoof_warn - what level to warn about spoofing
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| /freebsd/include/rpcsvc/ |
| H A D | nlm_prot.x | 2 * Network lock manager protocol definition
5 * protocol used between local lock manager and remote lock manager
15 * status of a call to the lock manager
58 netobj oh; /* identify owner of a lock */
70 int state; /* specify local status monitor state */ member
134 long state; member
211 int state; /* specify local status monitor state */ member
245 int state; /* new state */ member
251 int32_t state; member
255 * Over-the-wire protocol used between the network lock managers
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| /freebsd/crypto/openssl/providers/implementations/rands/ |
| H A D | drbg.c | 2 * Copyright 2011-2025 The OpenSSL Project Authors. All Rights Reserved.
27 * Support framework for NIST SP 800-90A DRBG
33 * instantiation and un-instantiate, and reuse within a new/free
36 * a much bigger deal than just re-setting an allocated resource.)
39 /* NIST SP 800-90A DRBG recommends the use of a personalization string. */
50 * however we manage for ourselves when we take a lock or not on the basis
51 * of whether drbg->lock is present or not.
65 void *parent = drbg->parent; in ossl_drbg_lock_parent()
68 && drbg->parent_lock != NULL in ossl_drbg_lock_parent()
69 && !drbg->parent_lock(parent)) { in ossl_drbg_lock_parent()
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| /freebsd/contrib/llvm-project/llvm/include/llvm/ExecutionEngine/Orc/ |
| H A D | ThreadSafeModule.h | 1 //===----------- ThreadSafeModule.h -- Layer interfaces ---------*- C++ -*-===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
27 /// An LLVMContext together with an associated mutex that can be used to lock
31 struct State { struct
32 State(std::unique_ptr<LLVMContext> Ctx) : Ctx(std::move(Ctx)) {} in State() function
39 // RAII based lock for ThreadSafeContext.
40 class [[nodiscard]] Lock {
42 Lock(std::shared_ptr<State> S) : S(std::move(S)), L(this->S->Mutex) {} in Lock() argument
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| /freebsd/sys/netinet/tcp_stacks/ |
| H A D | tcp_bbr.h | 1 /*-
2 * Copyright (c) 2016-2020 Netflix, Inc.
29 #define BBR_INITIAL_RTO 1000000 /* 1 second in micro-seconds */
39 #define BBR_TLP 0x0080 /* segment sent as tail-loss-probe */
43 * totaled into bbr->rc_ctl.rc_lost
70 uint8_t r_rtr_cnt:4, /* Retran count, index this -1 to get time
78 r_is_smallmap:1,/* Was logged as a small-map send-map item */
80 r_bbr_state:5; /* The BBR state at send */
118 * exit from probe-rtt */
230 uint64_t sb_acc; /* For out/ack or t-o */
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