palemoon-dev/platform/nsprpub/pr/include/md/_unixware.h

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nspr_unixware_defs_h___
#define nspr_unixware_defs_h___

/*
 * Internal configuration macros
 */

#define PR_LINKER_ARCH  "unixware"
#define _PR_SI_SYSNAME      "UnixWare"
#define _PR_SI_ARCHITECTURE "x86"
#define PR_DLL_SUFFIX       ".so"

#define _PR_VMBASE      0x30000000
#define _PR_STACK_VMBASE    0x50000000
#define _MD_DEFAULT_STACK_SIZE  65536L
#define _MD_MMAP_FLAGS          MAP_PRIVATE

#ifndef HAVE_WEAK_IO_SYMBOLS
#define HAVE_WEAK_IO_SYMBOLS
#endif
#define _PR_POLL_AVAILABLE
#define _PR_USE_POLL
#define _PR_STAT_HAS_ST_ATIM_UNION

#undef  HAVE_STACK_GROWING_UP
#define HAVE_NETCONFIG
#define HAVE_DLL
#define USE_DLFCN
#define HAVE_STRERROR
#define NEED_STRFTIME_LOCK
#define NEED_TIME_R
#define _PR_NEED_STRCASECMP

#define USE_SETJMP

#include <setjmp.h>

#define _SETJMP setjmp
#define _LONGJMP longjmp
#define _PR_CONTEXT_TYPE         jmp_buf
#define _MD_GET_SP(_t)           (_t)->md.context[4]
#define _PR_NUM_GCREGS  _JBLEN

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

/*
** Initialize the thread context preparing it to execute _main.
*/
#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
{                                 \
    *status = PR_TRUE; \
    if(_SETJMP(CONTEXT(_thread))) (*_main)(); \
    _MD_GET_SP(_thread) = (int) ((_sp) - 128); \
}

#define _MD_SWITCH_CONTEXT(_thread)  \
    if (!_SETJMP(CONTEXT(_thread))) { \
    (_thread)->md.errcode = errno;  \
    _PR_Schedule();          \
    }

/*
** Restore a thread context, saved by _MD_SWITCH_CONTEXT
*/
#define _MD_RESTORE_CONTEXT(_thread) \
{                    \
    errno = (_thread)->md.errcode;       \
    _MD_SET_CURRENT_THREAD(_thread); \
    _LONGJMP(CONTEXT(_thread), 1);    \
}

/* Machine-dependent (MD) data structures.
 * Don't use SVR4 native threads (yet).
 */

struct _MDThread {
    _PR_CONTEXT_TYPE context;
    int id;
    int errcode;
};

struct _MDThreadStack {
    PRInt8 notused;
};

struct _MDLock {
    PRInt8 notused;
};

struct _MDSemaphore {
    PRInt8 notused;
};

struct _MDCVar {
    PRInt8 notused;
};

struct _MDSegment {
    PRInt8 notused;
};

/*
 * md-specific cpu structure field
 */
#define _PR_MD_MAX_OSFD FD_SETSIZE

struct _MDCPU_Unix {
    PRCList ioQ;
    PRUint32 ioq_timeout;
    PRInt32 ioq_max_osfd;
    PRInt32 ioq_osfd_cnt;
#ifndef _PR_USE_POLL
    fd_set fd_read_set, fd_write_set, fd_exception_set;
    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
            fd_exception_cnt[_PR_MD_MAX_OSFD];
#else
    struct pollfd *ioq_pollfds;
    int ioq_pollfds_size;
#endif  /* _PR_USE_POLL */
};

#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)

#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32

struct _MDCPU {
    struct _MDCPU_Unix md_unix;
};

#define _MD_INIT_LOCKS()
#define _MD_NEW_LOCK(lock) PR_SUCCESS
#define _MD_FREE_LOCK(lock)
#define _MD_LOCK(lock)
#define _MD_UNLOCK(lock)
#define _MD_INIT_IO()
#define _MD_IOQ_LOCK()
#define _MD_IOQ_UNLOCK()

/*
 * The following are copied from _sunos.h, _aix.h.  This means
 * some of them should probably be moved into _unixos.h.  But
 * _irix.h seems to be quite different in regard to these macros.
 */
#define _MD_INTERVAL_USE_GTOD

#define _MD_EARLY_INIT      _MD_EarlyInit
#define _MD_FINAL_INIT      _PR_UnixInit
#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
#define _MD_INIT_THREAD         _MD_InitializeThread
#define _MD_EXIT_THREAD(thread)
#define _MD_SUSPEND_THREAD(thread)
#define _MD_RESUME_THREAD(thread)
#define _MD_CLEAN_THREAD(_thread)

/*
 * We wrapped the select() call.  _MD_SELECT refers to the built-in,
 * unwrapped version.
 */
#include <sys/time.h>
#include <sys/types.h>
#include <sys/select.h>
extern int _select(int nfds, fd_set *readfds, fd_set *writefds,
                   fd_set *execptfds, struct timeval *timeout);
#define _MD_SELECT _select

#define _MD_POLL _poll
extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);

#endif /* nspr_unixware_defs_h___ */