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

nsprpub/pr/include/md/_openbsd.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_openbsd_defs_h___
michael@0	7	#define nspr_openbsd_defs_h___
michael@0	8
michael@0	9	#include <sys/syscall.h>
michael@0	10
michael@0	11	#define PR_LINKER_ARCH "openbsd"
michael@0	12	#define _PR_SI_SYSNAME "OPENBSD"
michael@0	13	#if defined(__i386__)
michael@0	14	#define _PR_SI_ARCHITECTURE "x86"
michael@0	15	#elif defined(__alpha__)
michael@0	16	#define _PR_SI_ARCHITECTURE "alpha"
michael@0	17	#elif defined(__amd64__)
michael@0	18	#define _PR_SI_ARCHITECTURE "amd64"
michael@0	19	#elif defined(__m68k__)
michael@0	20	#define _PR_SI_ARCHITECTURE "m68k"
michael@0	21	#elif defined(__powerpc__)
michael@0	22	#define _PR_SI_ARCHITECTURE "powerpc"
michael@0	23	#elif defined(__sparc__)
michael@0	24	#define _PR_SI_ARCHITECTURE "sparc"
michael@0	25	#elif defined(__arm__)
michael@0	26	#define _PR_SI_ARCHITECTURE "arm"
michael@0	27	#endif
michael@0	28
michael@0	29	#define PR_DLL_SUFFIX ".so"
michael@0	30
michael@0	31	#define _PR_VMBASE 0x30000000
michael@0	32	#define _PR_STACK_VMBASE 0x50000000
michael@0	33	#define _MD_DEFAULT_STACK_SIZE 65536L
michael@0	34	#define _MD_MMAP_FLAGS MAP_PRIVATE
michael@0	35
michael@0	36	#undef HAVE_STACK_GROWING_UP
michael@0	37	#define HAVE_DLL
michael@0	38	#define USE_DLFCN
michael@0	39	#define _PR_HAVE_SOCKADDR_LEN
michael@0	40	#define _PR_HAVE_LARGE_OFF_T
michael@0	41	#define _PR_STAT_HAS_ST_ATIMESPEC
michael@0	42	#define _PR_POLL_AVAILABLE
michael@0	43	#define _PR_USE_POLL
michael@0	44	#define _PR_HAVE_SYSV_SEMAPHORES
michael@0	45	#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
michael@0	46
michael@0	47	#define _PR_INET6
michael@0	48	#define _PR_HAVE_INET_NTOP
michael@0	49	#define _PR_HAVE_GETHOSTBYNAME2
michael@0	50	#define _PR_HAVE_GETADDRINFO
michael@0	51	#define _PR_INET6_PROBE
michael@0	52
michael@0	53	#define USE_SETJMP
michael@0	54
michael@0	55	#ifndef _PR_PTHREADS
michael@0	56	#include <setjmp.h>
michael@0	57
michael@0	58	#define PR_CONTEXT_TYPE sigjmp_buf
michael@0	59
michael@0	60	#define CONTEXT(_th) ((_th)->md.context)
michael@0	61
michael@0	62	#if defined(__i386__) || defined(__sparc__) || defined(__m68k__)
michael@0	63	#define JB_SP_INDEX 2
michael@0	64	#elif defined(__powerpc__)
michael@0	65	#define JB_SP_INDEX 1
michael@0	66	#elif defined(__alpha__)
michael@0	67	#define JB_SP_INDEX 34
michael@0	68	#elif defined(__amd64__)
michael@0	69	#define JB_SP_INDEX 6
michael@0	70	#elif defined(__arm__)
michael@0	71	#define JB_SP_INDEX 23
michael@0	72	#else
michael@0	73	#error "Need to define SP index in jmp_buf here"
michael@0	74	#endif
michael@0	75	#define _MD_GET_SP(_th) (_th)->md.context[JB_SP_INDEX]
michael@0	76
michael@0	77	#define PR_NUM_GCREGS _JBLEN
michael@0	78
michael@0	79	/*
michael@0	80	** Initialize a thread context to run "_main()" when started
michael@0	81	*/
michael@0	82	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
michael@0	83	{ \
michael@0	84	*status = PR_TRUE; \
michael@0	85	if (sigsetjmp(CONTEXT(_thread), 1)) { \
michael@0	86	_main(); \
michael@0	87	} \
michael@0	88	_MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
michael@0	89	}
michael@0	90
michael@0	91	#define _MD_SWITCH_CONTEXT(_thread) \
michael@0	92	if (!sigsetjmp(CONTEXT(_thread), 1)) { \
michael@0	93	(_thread)->md.errcode = errno; \
michael@0	94	_PR_Schedule(); \
michael@0	95	}
michael@0	96
michael@0	97	/*
michael@0	98	** Restore a thread context, saved by _MD_SWITCH_CONTEXT
michael@0	99	*/
michael@0	100	#define _MD_RESTORE_CONTEXT(_thread) \
michael@0	101	{ \
michael@0	102	errno = (_thread)->md.errcode; \
michael@0	103	_MD_SET_CURRENT_THREAD(_thread); \
michael@0	104	siglongjmp(CONTEXT(_thread), 1); \
michael@0	105	}
michael@0	106
michael@0	107	/* Machine-dependent (MD) data structures */
michael@0	108
michael@0	109	struct _MDThread {
michael@0	110	PR_CONTEXT_TYPE context;
michael@0	111	int id;
michael@0	112	int errcode;
michael@0	113	};
michael@0	114
michael@0	115	struct _MDThreadStack {
michael@0	116	PRInt8 notused;
michael@0	117	};
michael@0	118
michael@0	119	struct _MDLock {
michael@0	120	PRInt8 notused;
michael@0	121	};
michael@0	122
michael@0	123	struct _MDSemaphore {
michael@0	124	PRInt8 notused;
michael@0	125	};
michael@0	126
michael@0	127	struct _MDCVar {
michael@0	128	PRInt8 notused;
michael@0	129	};
michael@0	130
michael@0	131	struct _MDSegment {
michael@0	132	PRInt8 notused;
michael@0	133	};
michael@0	134
michael@0	135	/*
michael@0	136	* md-specific cpu structure field
michael@0	137	*/
michael@0	138	#define _PR_MD_MAX_OSFD FD_SETSIZE
michael@0	139
michael@0	140	struct _MDCPU_Unix {
michael@0	141	PRCList ioQ;
michael@0	142	PRUint32 ioq_timeout;
michael@0	143	PRInt32 ioq_max_osfd;
michael@0	144	PRInt32 ioq_osfd_cnt;
michael@0	145	#ifndef _PR_USE_POLL
michael@0	146	fd_set fd_read_set, fd_write_set, fd_exception_set;
michael@0	147	PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
michael@0	148	fd_exception_cnt[_PR_MD_MAX_OSFD];
michael@0	149	#else
michael@0	150	struct pollfd *ioq_pollfds;
michael@0	151	int ioq_pollfds_size;
michael@0	152	#endif /* _PR_USE_POLL */
michael@0	153	};
michael@0	154
michael@0	155	#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
michael@0	156	#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
michael@0	157	#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
michael@0	158	#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
michael@0	159	#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
michael@0	160	#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
michael@0	161	#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
michael@0	162	#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
michael@0	163	#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
michael@0	164	#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
michael@0	165	#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
michael@0	166	#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
michael@0	167	#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
michael@0	168
michael@0	169	#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
michael@0	170
michael@0	171	struct _MDCPU {
michael@0	172	struct _MDCPU_Unix md_unix;
michael@0	173	};
michael@0	174
michael@0	175	#define _MD_INIT_LOCKS()
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	#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
michael@0	185	#define _MD_INIT_THREAD _MD_InitializeThread
michael@0	186	#define _MD_EXIT_THREAD(thread)
michael@0	187	#define _MD_SUSPEND_THREAD(thread) _MD_suspend_thread
michael@0	188	#define _MD_RESUME_THREAD(thread) _MD_resume_thread
michael@0	189	#define _MD_CLEAN_THREAD(_thread)
michael@0	190
michael@0	191	#endif /* ! _PR_PTHREADS */
michael@0	192
michael@0	193	#define _MD_EARLY_INIT _MD_EarlyInit
michael@0	194	#define _MD_FINAL_INIT _PR_UnixInit
michael@0	195	#define _MD_INTERVAL_USE_GTOD
michael@0	196
michael@0	197	/*
michael@0	198	* We wrapped the select() call. _MD_SELECT refers to the built-in,
michael@0	199	* unwrapped version.
michael@0	200	*/
michael@0	201	#define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
michael@0	202	#include <poll.h>
michael@0	203	#define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout)
michael@0	204
michael@0	205	#if OpenBSD1_3 == 1L
michael@0	206	typedef unsigned int nfds_t;
michael@0	207	#endif
michael@0	208
michael@0	209	#endif /* nspr_openbsd_defs_h___ */