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

     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_riscos_defs_h___

     7 #define nspr_riscos_defs_h___

     9 /*

    10 ** Internal configuration macros

    11 */

    12 #define PR_LINKER_ARCH		"riscos"

    13 #define _PR_SI_SYSNAME		"RISCOS"

    14 #define _PR_SI_ARCHITECTURE	"arm"

    15 #define PR_DLL_SUFFIX		".so"

    17 #define _PR_POLL_AVAILABLE

    18 #define _PR_USE_POLL

    19 #define _PR_HAVE_SOCKADDR_LEN

    20 #undef HAVE_BSD_FLOCK

    21 #define _PR_NO_LARGE_FILES

    22 #define _PR_STAT_HAS_ONLY_ST_ATIME

    23 #define _PR_HAVE_POSIX_SEMAPHORES

    25 #include <sys/select.h>

    26 #include <sys/poll.h>

    27 #include <kernel.h>

    30 #undef  HAVE_STACK_GROWING_UP

    31 #define HAVE_DLL

    32 #define USE_DLFCN

    33 #define NEED_STRFTIME_LOCK

    34 #define NEED_TIME_R

    35 #define PT_NO_SIGTIMEDWAIT

    37 #ifndef HAVE_STRERROR

    38 #define HAVE_STRERROR

    39 #endif

    41 #define USE_SETJMP

    43 #include <setjmp.h>

    45 #define _SETJMP			setjmp

    46 #define _LONGJMP		longjmp

    47 #define _PR_CONTEXT_TYPE	jmp_buf

    48 #define _PR_NUM_GCREGS		_JBLEN

    49 #define _MD_GET_SP(_t)		(_t)->md.context[7]

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

    54 /*

    55 ** Initialize the thread context preparing it to execute _main.

    56 */

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

    58 {							\

    59     *status = PR_TRUE;					\

    60     if(_SETJMP(CONTEXT(_thread))) (*_main)();		\

    61     _MD_GET_SP(_thread) = (int) ((_sp) - 128);		\

    62 }

    64 #define _MD_SWITCH_CONTEXT(_thread)	\

    65     if (!_SETJMP(CONTEXT(_thread))) {	\

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

    67 	_PR_Schedule();			\

    68     }

    70 /*

    71 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT

    72 */

    73 #define _MD_RESTORE_CONTEXT(_thread)	\

    74 {					\

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

    76     _MD_SET_CURRENT_THREAD(_thread);	\

    77     _LONGJMP(CONTEXT(_thread), 1);	\

    78 }

    80 /*

    81 ** Machine-dependent (MD) data structures.

    82 */

    83 struct _MDThread {

    84     _PR_CONTEXT_TYPE context;

    85     int id;

    86     int errcode;

    87 };

    89 struct _MDThreadStack {

    90     PRInt8 notused;

    91 };

    93 struct _MDLock {

    94     PRInt8 notused;

    95 };

    97 struct _MDSemaphore {

    98     PRInt8 notused;

    99 };

   101 struct _MDCVar {

   102     PRInt8 notused;

   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], fd_exception_cnt[_PR_MD_MAX_OSFD];

   122 #else

   123     struct pollfd *ioq_pollfds;

   124     int ioq_pollfds_size;

   125 #endif

   126 };

   128 #define _PR_IOQ(_cpu)	/*	*/	((_cpu)->md.md_unix.ioQ)

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

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

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

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

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

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

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

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

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

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

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

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

   142 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)	32

   144 struct _MDCPU {

   145 	struct _MDCPU_Unix md_unix;

   146 };

   148 #define _MD_INIT_LOCKS()

   149 #define _MD_NEW_LOCK(lock)		PR_SUCCESS

   150 #define _MD_FREE_LOCK(lock)

   151 #define _MD_LOCK(lock)

   152 #define _MD_UNLOCK(lock)

   153 #define _MD_INIT_IO()

   154 #define _MD_IOQ_LOCK()

   155 #define _MD_IOQ_UNLOCK()

   157 #define _MD_INTERVAL_USE_GTOD

   158 #define _MD_EARLY_INIT			_MD_EarlyInit

   159 #define _MD_FINAL_INIT			_PR_UnixInit

   160 #define _MD_INIT_RUNNING_CPU(cpu)	_MD_unix_init_running_cpu(cpu)

   161 #define _MD_INIT_THREAD			_MD_InitializeThread

   162 #define _MD_EXIT_THREAD(thread)

   163 #define	_MD_SUSPEND_THREAD(thread)

   164 #define	_MD_RESUME_THREAD(thread)

   165 #define _MD_CLEAN_THREAD(_thread)

   167 /*

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

   169 ** unwrapped version.

   170 */

   171 #include <sys/time.h>

   172 #include <sys/types.h>

   173 #include <sys/select.h>

   174 #define _MD_SELECT		select

   176 #endif /* nspr_riscos_defs_h___ */

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