nsprpub/pr/include/md/_nspr_pthread.h@7e26c7da4463
nsprpub/pr/include/md/_nspr_pthread.h
Wed, 31 Dec 2014 06:55:50 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:55:50 +0100
- changeset 2
- 7e26c7da4463
- permissions
- -rw-r--r--
Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2
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/. */
6 #ifndef nspr_pthread_defs_h___
7 #define nspr_pthread_defs_h___
9 #include <pthread.h>
10 #include "prthread.h"
12 #if defined(PTHREADS_USER)
13 /*
14 ** Thread Local Storage
15 */
16 extern pthread_key_t current_thread_key;
17 extern pthread_key_t current_cpu_key;
18 extern pthread_key_t last_thread_key;
19 extern pthread_key_t intsoff_key;
21 #define _MD_CURRENT_THREAD() \
22 ((struct PRThread *) pthread_getspecific(current_thread_key))
23 #define _MD_CURRENT_CPU() \
24 ((struct _PRCPU *) pthread_getspecific(current_cpu_key))
25 #define _MD_LAST_THREAD() \
26 ((struct PRThread *) pthread_getspecific(last_thread_key))
28 #define _MD_SET_CURRENT_THREAD(newval) \
29 pthread_setspecific(current_thread_key, (void *)newval)
31 #define _MD_SET_CURRENT_CPU(newval) \
32 pthread_setspecific(current_cpu_key, (void *)newval)
34 #define _MD_SET_LAST_THREAD(newval) \
35 pthread_setspecific(last_thread_key, (void *)newval)
37 #define _MD_SET_INTSOFF(_val)
38 #define _MD_GET_INTSOFF() 1
40 /*
41 ** Initialize the thread context preparing it to execute _main.
42 */
43 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
44 PR_BEGIN_MACRO \
45 *status = PR_TRUE; \
46 if (SAVE_CONTEXT(_thread)) { \
47 (*_main)(); \
48 } \
49 _MD_SET_THR_SP(_thread, _sp); \
50 _thread->no_sched = 0; \
51 PR_END_MACRO
53 #define _MD_SWITCH_CONTEXT(_thread) \
54 PR_BEGIN_MACRO \
55 PR_ASSERT(_thread->no_sched); \
56 if (!SAVE_CONTEXT(_thread)) { \
57 (_thread)->md.errcode = errno; \
58 _MD_SET_LAST_THREAD(_thread); \
59 _PR_Schedule(); \
60 } else { \
61 (_MD_LAST_THREAD())->no_sched = 0; \
62 } \
63 PR_END_MACRO
65 /*
66 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
67 */
68 #define _MD_RESTORE_CONTEXT(_thread) \
69 PR_BEGIN_MACRO \
70 errno = (_thread)->md.errcode; \
71 _MD_SET_CURRENT_THREAD(_thread); \
72 _thread->no_sched = 1; \
73 GOTO_CONTEXT(_thread); \
74 PR_END_MACRO
77 /* Machine-dependent (MD) data structures */
79 struct _MDThread {
80 jmp_buf jb;
81 int id;
82 int errcode;
83 pthread_t pthread;
84 pthread_mutex_t pthread_mutex;
85 pthread_cond_t pthread_cond;
86 int wait;
87 };
89 struct _MDThreadStack {
90 PRInt8 notused;
91 };
93 struct _MDLock {
94 pthread_mutex_t mutex;
95 };
97 struct _MDSemaphore {
98 PRInt8 notused;
99 };
101 struct _MDCVar {
102 pthread_mutex_t mutex;
103 };
105 struct _MDSegment {
106 PRInt8 notused;
107 };
109 /*
110 * md-specific cpu structure field
111 */
112 #define _PR_MD_MAX_OSFD FD_SETSIZE
114 struct _MDCPU_Unix {
115 PRCList ioQ;
116 PRUint32 ioq_timeout;
117 PRInt32 ioq_max_osfd;
118 PRInt32 ioq_osfd_cnt;
119 #ifndef _PR_USE_POLL
120 fd_set fd_read_set, fd_write_set, fd_exception_set;
121 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
122 fd_exception_cnt[_PR_MD_MAX_OSFD];
123 #else
124 struct pollfd *ioq_pollfds;
125 int ioq_pollfds_size;
126 #endif /* _PR_USE_POLL */
127 };
129 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
130 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
131 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
132 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
133 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
134 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
135 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
136 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
137 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
138 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
139 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
140 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
141 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
143 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
145 struct _MDCPU {
146 jmp_buf jb;
147 pthread_t pthread;
148 struct _MDCPU_Unix md_unix;
149 };
151 /*
152 #define _MD_NEW_LOCK(lock) PR_SUCCESS
153 #define _MD_FREE_LOCK(lock)
154 #define _MD_LOCK(lock)
155 #define _MD_UNLOCK(lock)
156 */
158 extern pthread_mutex_t _pr_heapLock;
160 #define _PR_LOCK(lock) pthread_mutex_lock(lock)
162 #define _PR_UNLOCK(lock) pthread_mutex_unlock(lock)
165 #define _PR_LOCK_HEAP() { \
166 if (_pr_primordialCPU) { \
167 _PR_LOCK(_pr_heapLock); \
168 }
170 #define _PR_UNLOCK_HEAP() if (_pr_primordialCPU) { \
171 _PR_UNLOCK(_pr_heapLock); \
172 } \
173 }
175 NSPR_API(PRStatus) _MD_NEW_LOCK(struct _MDLock *md);
176 NSPR_API(void) _MD_FREE_LOCK(struct _MDLock *lockp);
178 #define _MD_LOCK(_lockp) _PR_LOCK(&(_lockp)->mutex)
179 #define _MD_UNLOCK(_lockp) _PR_UNLOCK(&(_lockp)->mutex)
181 #define _MD_INIT_IO()
182 #define _MD_IOQ_LOCK()
183 #define _MD_IOQ_UNLOCK()
184 #define _MD_CHECK_FOR_EXIT()
186 NSPR_API(PRStatus) _MD_InitThread(struct PRThread *thread);
187 #define _MD_INIT_THREAD _MD_InitThread
188 #define _MD_INIT_ATTACHED_THREAD _MD_InitThread
190 NSPR_API(void) _MD_ExitThread(struct PRThread *thread);
191 #define _MD_EXIT_THREAD _MD_ExitThread
193 NSPR_API(void) _MD_SuspendThread(struct PRThread *thread);
194 #define _MD_SUSPEND_THREAD _MD_SuspendThread
196 NSPR_API(void) _MD_ResumeThread(struct PRThread *thread);
197 #define _MD_RESUME_THREAD _MD_ResumeThread
199 NSPR_API(void) _MD_SuspendCPU(struct _PRCPU *thread);
200 #define _MD_SUSPEND_CPU _MD_SuspendCPU
202 NSPR_API(void) _MD_ResumeCPU(struct _PRCPU *thread);
203 #define _MD_RESUME_CPU _MD_ResumeCPU
205 #define _MD_BEGIN_SUSPEND_ALL()
206 #define _MD_END_SUSPEND_ALL()
207 #define _MD_BEGIN_RESUME_ALL()
208 #define _MD_END_RESUME_ALL()
210 NSPR_API(void) _MD_EarlyInit(void);
211 #define _MD_EARLY_INIT _MD_EarlyInit
213 #define _MD_FINAL_INIT _PR_UnixInit
215 NSPR_API(void) _MD_InitLocks(void);
216 #define _MD_INIT_LOCKS _MD_InitLocks
218 NSPR_API(void) _MD_CleanThread(struct PRThread *thread);
219 #define _MD_CLEAN_THREAD _MD_CleanThread
221 NSPR_API(PRStatus) _MD_CreateThread(
222 struct PRThread *thread,
223 void (*start) (void *),
224 PRThreadPriority priority,
225 PRThreadScope scope,
226 PRThreadState state,
227 PRUint32 stackSize);
228 #define _MD_CREATE_THREAD _MD_CreateThread
230 extern void _MD_CleanupBeforeExit(void);
231 #define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit
233 NSPR_API(void) _MD_InitRunningCPU(struct _PRCPU *cpu);
234 #define _MD_INIT_RUNNING_CPU _MD_InitRunningCPU
236 /* The _PR_MD_WAIT_LOCK and _PR_MD_WAKEUP_WAITER functions put to sleep and
237 * awaken a thread which is waiting on a lock or cvar.
238 */
239 NSPR_API(PRStatus) _MD_wait(struct PRThread *, PRIntervalTime timeout);
240 #define _MD_WAIT _MD_wait
242 NSPR_API(PRStatus) _MD_WakeupWaiter(struct PRThread *);
243 #define _MD_WAKEUP_WAITER _MD_WakeupWaiter
245 NSPR_API(void) _MD_SetPriority(struct _MDThread *thread,
246 PRThreadPriority newPri);
247 #define _MD_SET_PRIORITY _MD_SetPriority
249 #endif /* PTHREADS_USER */
251 #endif /* nspr_pthread_defs_h___ */
