The Tor Browser: nsprpub/pr/include/md/

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

     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_netbsd_defs_h___

     7 #define nspr_netbsd_defs_h___

     9 #include <sys/syscall.h>

    10 #include <sys/param.h>  /* for __NetBSD_Version__ */

    12 #define PR_LINKER_ARCH	"netbsd"

    13 #define _PR_SI_SYSNAME  "NetBSD"

    14 #if defined(__i386__)

    15 #define _PR_SI_ARCHITECTURE "x86"

    16 #elif defined(__alpha__)

    17 #define _PR_SI_ARCHITECTURE "alpha"

    18 #elif defined(__amd64__)

    19 #define _PR_SI_ARCHITECTURE "amd64"

    20 #elif defined(__m68k__)

    21 #define _PR_SI_ARCHITECTURE "m68k"

    22 #elif defined(__powerpc__)

    23 #define _PR_SI_ARCHITECTURE "powerpc"

    24 #elif defined(__sparc_v9__)

    25 #define _PR_SI_ARCHITECTURE "sparc64"

    26 #elif defined(__sparc__)

    27 #define _PR_SI_ARCHITECTURE "sparc"

    28 #elif defined(__mips__)

    29 #define _PR_SI_ARCHITECTURE "mips"

    30 #elif defined(__arm32__) || defined(__arm__) || defined(__armel__) \

    31     || defined(__armeb__)

    32 #define _PR_SI_ARCHITECTURE "arm"

    33 #endif

    35 #if defined(__ELF__)

    36 #define PR_DLL_SUFFIX		".so"

    37 #else

    38 #define PR_DLL_SUFFIX		".so.1.0"

    39 #endif

    41 #define _PR_VMBASE              0x30000000

    42 #define _PR_STACK_VMBASE	0x50000000

    43 #define _MD_DEFAULT_STACK_SIZE	65536L

    44 #define _MD_MMAP_FLAGS          MAP_PRIVATE

    46 #undef  HAVE_STACK_GROWING_UP

    47 #define HAVE_DLL

    48 #define USE_DLFCN

    49 #define _PR_HAVE_SOCKADDR_LEN

    50 #define _PR_NO_LARGE_FILES

    51 #define _PR_STAT_HAS_ST_ATIMESPEC

    52 #define _PR_POLL_AVAILABLE

    53 #define _PR_USE_POLL

    54 #define _PR_HAVE_SYSV_SEMAPHORES

    55 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY

    57 #if __NetBSD_Version__ >= 105000000

    58 #define _PR_INET6

    59 #define _PR_HAVE_INET_NTOP

    60 #define _PR_HAVE_GETHOSTBYNAME2

    61 #define _PR_HAVE_GETADDRINFO

    62 #define _PR_INET6_PROBE

    63 #endif

    65 #define USE_SETJMP

    67 #ifndef _PR_PTHREADS

    68 #include <setjmp.h>

    70 #define PR_CONTEXT_TYPE	sigjmp_buf

    72 #define CONTEXT(_th) ((_th)->md.context)

    74 #if defined(__i386__) || defined(__sparc__) || defined(__m68k__) || defined(__powerpc__)

    75 #define JB_SP_INDEX 2

    76 #elif defined(__mips__)

    77 #define JB_SP_INDEX 4

    78 #elif defined(__alpha__)

    79 #define JB_SP_INDEX 34

    80 #elif defined(__arm32__)

    81 /*

    82  * On the arm32, the jmpbuf regs underwent a name change after NetBSD 1.3.

    83  */

    84 #ifdef JMPBUF_REG_R13

    85 #define JB_SP_INDEX JMPBUF_REG_R13

    86 #else

    87 #define JB_SP_INDEX _JB_REG_R13

    88 #endif

    89 #else

    90 #error "Need to define SP index in jmp_buf here"

    91 #endif

    92 #define _MD_GET_SP(_th)    (_th)->md.context[JB_SP_INDEX]

    94 #define PR_NUM_GCREGS	_JBLEN

    96 /*

    97 ** Initialize a thread context to run "_main()" when started

    98 */

    99 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \

   100 {  \

   101     *status = PR_TRUE;  \

   102     if (sigsetjmp(CONTEXT(_thread), 1)) {  \

   103         _main();  \

   104     }  \

   105     _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \

   106 }

   108 #define _MD_SWITCH_CONTEXT(_thread)  \

   109     if (!sigsetjmp(CONTEXT(_thread), 1)) {  \

   110         (_thread)->md.errcode = errno;  \

   111         _PR_Schedule();  \

   112     }

   114 /*

   115 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT

   116 */

   117 #define _MD_RESTORE_CONTEXT(_thread) \

   118 {   \

   119     errno = (_thread)->md.errcode;  \

   120     _MD_SET_CURRENT_THREAD(_thread);  \

   121     siglongjmp(CONTEXT(_thread), 1);  \

   122 }

   124 /* Machine-dependent (MD) data structures */

   126 struct _MDThread {

   127     PR_CONTEXT_TYPE context;

   128     int id;

   129     int errcode;

   130 };

   132 struct _MDThreadStack {

   133     PRInt8 notused;

   134 };

   136 struct _MDLock {

   137     PRInt8 notused;

   138 };

   140 struct _MDSemaphore {

   141     PRInt8 notused;

   142 };

   144 struct _MDCVar {

   145     PRInt8 notused;

   146 };

   148 struct _MDSegment {

   149     PRInt8 notused;

   150 };

   152 /*

   153  * md-specific cpu structure field

   154  */

   155 #define _PR_MD_MAX_OSFD FD_SETSIZE

   157 struct _MDCPU_Unix {

   158     PRCList ioQ;

   159     PRUint32 ioq_timeout;

   160     PRInt32 ioq_max_osfd;

   161     PRInt32 ioq_osfd_cnt;

   162 #ifndef _PR_USE_POLL

   163     fd_set fd_read_set, fd_write_set, fd_exception_set;

   164     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],

   165 				fd_exception_cnt[_PR_MD_MAX_OSFD];

   166 #else

   167 	struct pollfd *ioq_pollfds;

   168 	int ioq_pollfds_size;

   169 #endif	/* _PR_USE_POLL */

   170 };

   172 #define _PR_IOQ(_cpu)			((_cpu)->md.md_unix.ioQ)

   173 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))

   174 #define _PR_FD_READ_SET(_cpu)		((_cpu)->md.md_unix.fd_read_set)

   175 #define _PR_FD_READ_CNT(_cpu)		((_cpu)->md.md_unix.fd_read_cnt)

   176 #define _PR_FD_WRITE_SET(_cpu)		((_cpu)->md.md_unix.fd_write_set)

   177 #define _PR_FD_WRITE_CNT(_cpu)		((_cpu)->md.md_unix.fd_write_cnt)

   178 #define _PR_FD_EXCEPTION_SET(_cpu)	((_cpu)->md.md_unix.fd_exception_set)

   179 #define _PR_FD_EXCEPTION_CNT(_cpu)	((_cpu)->md.md_unix.fd_exception_cnt)

   180 #define _PR_IOQ_TIMEOUT(_cpu)		((_cpu)->md.md_unix.ioq_timeout)

   181 #define _PR_IOQ_MAX_OSFD(_cpu)		((_cpu)->md.md_unix.ioq_max_osfd)

   182 #define _PR_IOQ_OSFD_CNT(_cpu)		((_cpu)->md.md_unix.ioq_osfd_cnt)

   183 #define _PR_IOQ_POLLFDS(_cpu)		((_cpu)->md.md_unix.ioq_pollfds)

   184 #define _PR_IOQ_POLLFDS_SIZE(_cpu)	((_cpu)->md.md_unix.ioq_pollfds_size)

   186 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)	32

   188 struct _MDCPU {

   189     struct _MDCPU_Unix md_unix;

   190 };

   192 #define _MD_INIT_LOCKS()

   193 #define _MD_NEW_LOCK(lock) PR_SUCCESS

   194 #define _MD_FREE_LOCK(lock)

   195 #define _MD_LOCK(lock)

   196 #define _MD_UNLOCK(lock)

   197 #define _MD_INIT_IO()

   198 #define _MD_IOQ_LOCK()

   199 #define _MD_IOQ_UNLOCK()

   201 #define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)

   202 #define _MD_INIT_THREAD                 _MD_InitializeThread

   203 #define _MD_EXIT_THREAD(thread)

   204 #define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread

   205 #define _MD_RESUME_THREAD(thread)       _MD_resume_thread

   206 #define _MD_CLEAN_THREAD(_thread)

   208 #endif /* ! _PR_PTHREADS */

   210 extern void _MD_EarlyInit(void);

   212 #define _MD_EARLY_INIT                  _MD_EarlyInit

   213 #define _MD_FINAL_INIT			_PR_UnixInit

   214 #define _MD_INTERVAL_USE_GTOD

   216 /*

   217  * We wrapped the select() call.  _MD_SELECT refers to the built-in,

   218  * unwrapped version.

   219  */

   220 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)

   221 #if defined(_PR_POLL_AVAILABLE)

   222 #include <poll.h>

   223 #define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout)

   224 #endif

   226 #if NetBSD1_3 == 1L

   227 typedef unsigned int nfds_t;

   228 #endif

   230 #endif /* nspr_netbsd_defs_h___ */

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