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nsprpub/pr/include/md/_osf1.h@44a2da4a2ab2 (annotated)

nsprpub/pr/include/md/_osf1.h

Fri, 16 Jan 2015 04:50:19 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Fri, 16 Jan 2015 04:50:19 +0100

branch

TOR_BUG_9701

changeset 13

44a2da4a2ab2

permissions

-rw-r--r--

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

michael@0	1	/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	#ifndef nspr_osf1_defs_h___
michael@0	7	#define nspr_osf1_defs_h___
michael@0	8
michael@0	9	/*
michael@0	10	* Internal configuration macros
michael@0	11	*/
michael@0	12
michael@0	13	#define PR_LINKER_ARCH "osf"
michael@0	14	#define _PR_SI_SYSNAME "OSF"
michael@0	15	#define _PR_SI_ARCHITECTURE "alpha"
michael@0	16	#define PR_DLL_SUFFIX ".so"
michael@0	17
michael@0	18	#define _PR_VMBASE 0x30000000
michael@0	19	#define _PR_STACK_VMBASE 0x50000000
michael@0	20	#define _MD_DEFAULT_STACK_SIZE 131072L
michael@0	21	#define _MD_MMAP_FLAGS MAP_PRIVATE
michael@0	22
michael@0	23	#undef HAVE_STACK_GROWING_UP
michael@0	24	#undef HAVE_WEAK_IO_SYMBOLS
michael@0	25	#undef HAVE_WEAK_MALLOC_SYMBOLS
michael@0	26	#define HAVE_DLL
michael@0	27	#define HAVE_BSD_FLOCK
michael@0	28
michael@0	29	#define NEED_TIME_R
michael@0	30	#define USE_DLFCN
michael@0	31
michael@0	32	#define _PR_POLL_AVAILABLE
michael@0	33	#define _PR_USE_POLL
michael@0	34	#define _PR_STAT_HAS_ONLY_ST_ATIME
michael@0	35	#define _PR_HAVE_LARGE_OFF_T
michael@0	36	#define _PR_HAVE_GETIPNODEBYNAME
michael@0	37	#define _PR_HAVE_GETIPNODEBYADDR
michael@0	38	#define _PR_HAVE_GETADDRINFO
michael@0	39	#define _PR_INET6_PROBE
michael@0	40	#ifdef _PR_INET6
michael@0	41	#define _PR_HAVE_INET_NTOP
michael@0	42	#else
michael@0	43	#define AF_INET6 26
michael@0	44	#ifndef AI_CANONNAME
michael@0	45	#define AI_CANONNAME 0x00000002
michael@0	46	struct addrinfo {
michael@0	47	int ai_flags;
michael@0	48	int ai_family;
michael@0	49	int ai_socktype;
michael@0	50	int ai_protocol;
michael@0	51	size_t ai_addrlen;
michael@0	52	char *ai_canonname;
michael@0	53	struct sockaddr *ai_addr;
michael@0	54	struct addrinfo *ai_next;
michael@0	55	};
michael@0	56	#endif
michael@0	57	#define AI_V4MAPPED 0x00000010
michael@0	58	#define AI_ALL 0x00000008
michael@0	59	#define AI_ADDRCONFIG 0x00000020
michael@0	60	#endif
michael@0	61	#define _PR_HAVE_POSIX_SEMAPHORES
michael@0	62	#define PR_HAVE_POSIX_NAMED_SHARED_MEMORY
michael@0	63
michael@0	64	#define USE_SETJMP
michael@0	65
michael@0	66	#include <setjmp.h>
michael@0	67
michael@0	68	/*
michael@0	69	* A jmp_buf is actually a struct sigcontext. The sc_sp field of
michael@0	70	* struct sigcontext is the stack pointer.
michael@0	71	*/
michael@0	72	#define _MD_GET_SP(_t) (((struct sigcontext *) (_t)->md.context)->sc_sp)
michael@0	73	#define PR_NUM_GCREGS _JBLEN
michael@0	74	#define CONTEXT(_th) ((_th)->md.context)
michael@0	75
michael@0	76	/*
michael@0	77	** Initialize a thread context to run "_main()" when started
michael@0	78	*/
michael@0	79	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
michael@0	80	{ \
michael@0	81	*status = PR_TRUE; \
michael@0	82	if (setjmp(CONTEXT(_thread))) { \
michael@0	83	(*_main)(); \
michael@0	84	} \
michael@0	85	_MD_GET_SP(_thread) = (long) ((_sp) - 64); \
michael@0	86	_MD_GET_SP(_thread) &= ~15; \
michael@0	87	}
michael@0	88
michael@0	89	#define _MD_SWITCH_CONTEXT(_thread) \
michael@0	90	if (!setjmp(CONTEXT(_thread))) { \
michael@0	91	(_thread)->md.errcode = errno; \
michael@0	92	_PR_Schedule(); \
michael@0	93	}
michael@0	94
michael@0	95	/*
michael@0	96	** Restore a thread context, saved by _MD_SWITCH_CONTEXT
michael@0	97	*/
michael@0	98	#define _MD_RESTORE_CONTEXT(_thread) \
michael@0	99	{ \
michael@0	100	errno = (_thread)->md.errcode; \
michael@0	101	_MD_SET_CURRENT_THREAD(_thread); \
michael@0	102	longjmp(CONTEXT(_thread), 1); \
michael@0	103	}
michael@0	104
michael@0	105	/* Machine-dependent (MD) data structures */
michael@0	106
michael@0	107	struct _MDThread {
michael@0	108	jmp_buf context;
michael@0	109	int id;
michael@0	110	int errcode;
michael@0	111	};
michael@0	112
michael@0	113	struct _MDThreadStack {
michael@0	114	PRInt8 notused;
michael@0	115	};
michael@0	116
michael@0	117	struct _MDLock {
michael@0	118	PRInt8 notused;
michael@0	119	};
michael@0	120
michael@0	121	struct _MDSemaphore {
michael@0	122	PRInt8 notused;
michael@0	123	};
michael@0	124
michael@0	125	struct _MDCVar {
michael@0	126	PRInt8 notused;
michael@0	127	};
michael@0	128
michael@0	129	struct _MDSegment {
michael@0	130	PRInt8 notused;
michael@0	131	};
michael@0	132
michael@0	133	/*
michael@0	134	* md-specific cpu structure field
michael@0	135	*/
michael@0	136	#define _PR_MD_MAX_OSFD FD_SETSIZE
michael@0	137
michael@0	138	struct _MDCPU_Unix {
michael@0	139	PRCList ioQ;
michael@0	140	PRUint32 ioq_timeout;
michael@0	141	PRInt32 ioq_max_osfd;
michael@0	142	PRInt32 ioq_osfd_cnt;
michael@0	143	#ifndef _PR_USE_POLL
michael@0	144	fd_set fd_read_set, fd_write_set, fd_exception_set;
michael@0	145	PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
michael@0	146	fd_exception_cnt[_PR_MD_MAX_OSFD];
michael@0	147	#else
michael@0	148	struct pollfd *ioq_pollfds;
michael@0	149	int ioq_pollfds_size;
michael@0	150	#endif /* _PR_USE_POLL */
michael@0	151	};
michael@0	152
michael@0	153	#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
michael@0	154	#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
michael@0	155	#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
michael@0	156	#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
michael@0	157	#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
michael@0	158	#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
michael@0	159	#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
michael@0	160	#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
michael@0	161	#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
michael@0	162	#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
michael@0	163	#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
michael@0	164	#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
michael@0	165	#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
michael@0	166
michael@0	167	#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
michael@0	168
michael@0	169	struct _MDCPU {
michael@0	170	struct _MDCPU_Unix md_unix;
michael@0	171	};
michael@0	172
michael@0	173	#ifndef _PR_PTHREADS
michael@0	174	#define _MD_INIT_LOCKS()
michael@0	175	#endif
michael@0	176	#define _MD_NEW_LOCK(lock) PR_SUCCESS
michael@0	177	#define _MD_FREE_LOCK(lock)
michael@0	178	#define _MD_LOCK(lock)
michael@0	179	#define _MD_UNLOCK(lock)
michael@0	180	#define _MD_INIT_IO()
michael@0	181	#define _MD_IOQ_LOCK()
michael@0	182	#define _MD_IOQ_UNLOCK()
michael@0	183
michael@0	184	/*
michael@0	185	* The following are copied from _sunos.h, _aix.h. This means
michael@0	186	* some of them should probably be moved into _unixos.h. But
michael@0	187	* _irix.h seems to be quite different in regard to these macros.
michael@0	188	*/
michael@0	189	#define _MD_INTERVAL_USE_GTOD
michael@0	190
michael@0	191	#define _MD_EARLY_INIT _MD_EarlyInit
michael@0	192	#define _MD_FINAL_INIT _PR_UnixInit
michael@0	193	#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
michael@0	194	#define _MD_INIT_THREAD _MD_InitializeThread
michael@0	195	#define _MD_EXIT_THREAD(thread)
michael@0	196	#define _MD_SUSPEND_THREAD(thread)
michael@0	197	#define _MD_RESUME_THREAD(thread)
michael@0	198	#define _MD_CLEAN_THREAD(_thread)
michael@0	199
michael@0	200	/* The following defines unwrapped versions of select() and poll(). */
michael@0	201	#include <sys/time.h>
michael@0	202	extern int __select (int, fd_set *, fd_set *, fd_set *, struct timeval *);
michael@0	203	#define _MD_SELECT __select
michael@0	204
michael@0	205	#include <sys/poll.h>
michael@0	206	#define _MD_POLL __poll
michael@0	207	extern int __poll(struct pollfd filedes[], unsigned int nfds, int timeout);
michael@0	208
michael@0	209	/*
michael@0	210	* Atomic operations
michael@0	211	*/
michael@0	212	#ifdef OSF1_HAVE_MACHINE_BUILTINS_H
michael@0	213	#include <machine/builtins.h>
michael@0	214	#define _PR_HAVE_ATOMIC_OPS
michael@0	215	#define _MD_INIT_ATOMIC()
michael@0	216	#define _MD_ATOMIC_INCREMENT(val) (__ATOMIC_INCREMENT_LONG(val) + 1)
michael@0	217	#define _MD_ATOMIC_ADD(ptr, val) (__ATOMIC_ADD_LONG(ptr, val) + val)
michael@0	218	#define _MD_ATOMIC_DECREMENT(val) (__ATOMIC_DECREMENT_LONG(val) - 1)
michael@0	219	#define _MD_ATOMIC_SET(val, newval) __ATOMIC_EXCH_LONG(val, newval)
michael@0	220	#endif /* OSF1_HAVE_MACHINE_BUILTINS_H */
michael@0	221
michael@0	222	#endif /* nspr_osf1_defs_h___ */