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diff --git a/nsprpub/pr/include/md/_unixos.h b/nsprpub/pr/include/md/_unixos.h
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+/* -*- 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 prunixos_h___
+#define prunixos_h___
+
+/*
+ * If FD_SETSIZE is not defined on the command line, set the default value
+ * before include select.h
+ */
+/*
+ * Linux: FD_SETSIZE is defined in /usr/include/sys/select.h and should
+ * not be redefined.
+ */
+#if !defined(LINUX) && !defined(__GNU__) && !defined(__GLIBC__) \
+ && !defined(DARWIN)
+#ifndef FD_SETSIZE
+#define FD_SETSIZE 4096
+#endif
+#endif
+
+#include <unistd.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <errno.h>
+
+#include "prio.h"
+#include "prmem.h"
+#include "prclist.h"
+
+/*
+ * For select(), fd_set, and struct timeval.
+ *
+ * In The Single UNIX(R) Specification, Version 2,
+ * the header file for select() is <sys/time.h>.
+ * In Version 3, the header file for select() is
+ * changed to <sys/select.h>.
+ *
+ * fd_set is defined in <sys/types.h>. Usually
+ * <sys/time.h> includes <sys/types.h>, but on some
+ * older systems <sys/time.h> does not include
+ * <sys/types.h>, so we include it explicitly.
+ */
+#include <sys/time.h>
+#include <sys/types.h>
+#if defined(AIX) || defined(SYMBIAN)
+#include <sys/select.h>
+#endif
+
+#ifndef SYMBIAN
+#define HAVE_NETINET_TCP_H
+#endif
+
+#define _PR_HAVE_O_APPEND
+
+#define PR_DIRECTORY_SEPARATOR '/'
+#define PR_DIRECTORY_SEPARATOR_STR "/"
+#define PR_PATH_SEPARATOR ':'
+#define PR_PATH_SEPARATOR_STR ":"
+typedef int (*FARPROC)();
+
+/*
+ * intervals at which GLOBAL threads wakeup to check for pending interrupt
+ */
+#define _PR_INTERRUPT_CHECK_INTERVAL_SECS 5
+extern PRIntervalTime intr_timeout_ticks;
+
+/*
+ * The bit flags for the in_flags and out_flags fields
+ * of _PR_UnixPollDesc
+ */
+#ifdef _PR_USE_POLL
+#define _PR_UNIX_POLL_READ POLLIN
+#define _PR_UNIX_POLL_WRITE POLLOUT
+#define _PR_UNIX_POLL_EXCEPT POLLPRI
+#define _PR_UNIX_POLL_ERR POLLERR
+#define _PR_UNIX_POLL_NVAL POLLNVAL
+#define _PR_UNIX_POLL_HUP POLLHUP
+#else /* _PR_USE_POLL */
+#define _PR_UNIX_POLL_READ 0x1
+#define _PR_UNIX_POLL_WRITE 0x2
+#define _PR_UNIX_POLL_EXCEPT 0x4
+#define _PR_UNIX_POLL_ERR 0x8
+#define _PR_UNIX_POLL_NVAL 0x10
+#define _PR_UNIX_POLL_HUP 0x20
+#endif /* _PR_USE_POLL */
+
+typedef struct _PRUnixPollDesc {
+ PRInt32 osfd;
+ PRInt16 in_flags;
+ PRInt16 out_flags;
+} _PRUnixPollDesc;
+
+typedef struct PRPollQueue {
+ PRCList links; /* for linking PRPollQueue's together */
+ _PRUnixPollDesc *pds; /* array of poll descriptors */
+ PRUintn npds; /* length of the array */
+ PRPackedBool on_ioq; /* is this on the async i/o work q? */
+ PRIntervalTime timeout; /* timeout, in ticks */
+ struct PRThread *thr;
+} PRPollQueue;
+
+#define _PR_POLLQUEUE_PTR(_qp) \
+ ((PRPollQueue*) ((char*) (_qp) - offsetof(PRPollQueue,links)))
+
+
+extern PRInt32 _PR_WaitForMultipleFDs(
+ _PRUnixPollDesc *unixpds,
+ PRInt32 pdcnt,
+ PRIntervalTime timeout);
+extern void _PR_Unblock_IO_Wait(struct PRThread *thr);
+
+#if defined(_PR_LOCAL_THREADS_ONLY) || defined(_PR_GLOBAL_THREADS_ONLY)
+#define _MD_CHECK_FOR_EXIT()
+#endif
+
+extern fd_set _pr_md_read_set, _pr_md_write_set, _pr_md_exception_set;
+extern PRInt16 _pr_md_read_cnt[], _pr_md_write_cnt[], _pr_md_exception_cnt[];
+extern PRInt32 _pr_md_ioq_max_osfd;
+extern PRUint32 _pr_md_ioq_timeout;
+
+struct _MDFileDesc {
+ int osfd;
+#if defined(LINUX) && defined(_PR_PTHREADS)
+ int tcp_nodelay; /* used by pt_LinuxSendFile */
+#endif
+};
+
+struct _MDDir {
+ DIR *d;
+};
+
+struct _PRCPU;
+extern void _MD_unix_init_running_cpu(struct _PRCPU *cpu);
+
+/*
+** Make a redzone at both ends of the stack segment. Disallow access
+** to those pages of memory. It's ok if the mprotect call's don't
+** work - it just means that we don't really have a functional
+** redzone.
+*/
+#include <sys/mman.h>
+#ifndef PROT_NONE
+#define PROT_NONE 0x0
+#endif
+
+#if defined(DEBUG) && !defined(DARWIN)
+#if !defined(SOLARIS)
+#include <string.h> /* for memset() */
+#define _MD_INIT_STACK(ts,REDZONE) \
+ PR_BEGIN_MACRO \
+ (void) mprotect((void*)ts->seg->vaddr, REDZONE, PROT_NONE); \
+ (void) mprotect((void*) ((char*)ts->seg->vaddr + REDZONE + ts->stackSize),\
+ REDZONE, PROT_NONE); \
+ /* \
+ ** Fill stack memory with something that turns into an illegal \
+ ** pointer value. This will sometimes find runtime references to \
+ ** uninitialized pointers. We don't do this for solaris because we \
+ ** can use purify instead. \
+ */ \
+ if (_pr_debugStacks) { \
+ memset(ts->allocBase + REDZONE, 0xf7, ts->stackSize); \
+ } \
+ PR_END_MACRO
+#else /* !SOLARIS */
+#define _MD_INIT_STACK(ts,REDZONE) \
+ PR_BEGIN_MACRO \
+ (void) mprotect((void*)ts->seg->vaddr, REDZONE, PROT_NONE); \
+ (void) mprotect((void*) ((char*)ts->seg->vaddr + REDZONE + ts->stackSize),\
+ REDZONE, PROT_NONE); \
+ PR_END_MACRO
+#endif /* !SOLARIS */
+
+/*
+ * _MD_CLEAR_STACK
+ * Allow access to the redzone pages; the access was turned off in
+ * _MD_INIT_STACK.
+ */
+#define _MD_CLEAR_STACK(ts) \
+ PR_BEGIN_MACRO \
+ (void) mprotect((void*)ts->seg->vaddr, REDZONE, PROT_READ|PROT_WRITE);\
+ (void) mprotect((void*) ((char*)ts->seg->vaddr + REDZONE + ts->stackSize),\
+ REDZONE, PROT_READ|PROT_WRITE); \
+ PR_END_MACRO
+
+#else /* DEBUG */
+
+#define _MD_INIT_STACK(ts,REDZONE)
+#define _MD_CLEAR_STACK(ts)
+
+#endif /* DEBUG */
+
+#if !defined(SOLARIS)
+
+#define PR_SET_INTSOFF(newval)
+
+#endif
+
+/************************************************************************/
+
+extern void _PR_UnixInit(void);
+
+extern void _PR_UnixCleanup(void);
+#define _MD_EARLY_CLEANUP _PR_UnixCleanup
+
+/************************************************************************/
+
+struct _MDProcess {
+ pid_t pid;
+};
+
+struct PRProcess;
+struct PRProcessAttr;
+
+/* Create a new process (fork() + exec()) */
+#define _MD_CREATE_PROCESS _MD_CreateUnixProcess
+extern struct PRProcess * _MD_CreateUnixProcess(
+ const char *path,
+ char *const *argv,
+ char *const *envp,
+ const struct PRProcessAttr *attr
+);
+
+#define _MD_DETACH_PROCESS _MD_DetachUnixProcess
+extern PRStatus _MD_DetachUnixProcess(struct PRProcess *process);
+
+/* Wait for a child process to terminate */
+#define _MD_WAIT_PROCESS _MD_WaitUnixProcess
+extern PRStatus _MD_WaitUnixProcess(struct PRProcess *process,
+ PRInt32 *exitCode);
+
+#define _MD_KILL_PROCESS _MD_KillUnixProcess
+extern PRStatus _MD_KillUnixProcess(struct PRProcess *process);
+
+/************************************************************************/
+
+extern void _MD_EnableClockInterrupts(void);
+extern void _MD_DisableClockInterrupts(void);
+
+#define _MD_START_INTERRUPTS _MD_StartInterrupts
+#define _MD_STOP_INTERRUPTS _MD_StopInterrupts
+#define _MD_DISABLE_CLOCK_INTERRUPTS _MD_DisableClockInterrupts
+#define _MD_ENABLE_CLOCK_INTERRUPTS _MD_EnableClockInterrupts
+#define _MD_BLOCK_CLOCK_INTERRUPTS _MD_BlockClockInterrupts
+#define _MD_UNBLOCK_CLOCK_INTERRUPTS _MD_UnblockClockInterrupts
+
+/************************************************************************/
+
+extern void _MD_InitCPUS(void);
+#define _MD_INIT_CPUS _MD_InitCPUS
+
+extern void _MD_Wakeup_CPUs(void);
+#define _MD_WAKEUP_CPUS _MD_Wakeup_CPUs
+
+#define _MD_PAUSE_CPU _MD_PauseCPU
+
+#if defined(_PR_LOCAL_THREADS_ONLY) || defined(_PR_GLOBAL_THREADS_ONLY)
+#define _MD_CLEANUP_BEFORE_EXIT()
+#endif
+
+#ifndef IRIX
+#define _MD_EXIT(status) _exit(status)
+#endif
+
+/************************************************************************/
+
+#define _MD_GET_ENV getenv
+#define _MD_PUT_ENV putenv
+
+/************************************************************************/
+
+#define _MD_INIT_FILEDESC(fd)
+
+extern void _MD_MakeNonblock(PRFileDesc *fd);
+#define _MD_MAKE_NONBLOCK _MD_MakeNonblock
+
+/************************************************************************/
+
+#if !defined(_PR_PTHREADS)
+
+extern void _MD_InitSegs(void);
+extern PRStatus _MD_AllocSegment(PRSegment *seg, PRUint32 size,
+ void *vaddr);
+extern void _MD_FreeSegment(PRSegment *seg);
+
+#define _MD_INIT_SEGS _MD_InitSegs
+#define _MD_ALLOC_SEGMENT _MD_AllocSegment
+#define _MD_FREE_SEGMENT _MD_FreeSegment
+
+#endif /* !defined(_PR_PTHREADS) */
+
+/************************************************************************/
+
+#ifdef _MD_INTERVAL_USE_GTOD
+extern PRIntervalTime _PR_UNIX_GetInterval(void);
+extern PRIntervalTime _PR_UNIX_TicksPerSecond(void);
+#define _MD_INTERVAL_INIT()
+#define _MD_GET_INTERVAL _PR_UNIX_GetInterval
+#define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond
+#endif
+
+#ifdef _PR_HAVE_CLOCK_MONOTONIC
+extern PRIntervalTime _PR_UNIX_GetInterval2(void);
+extern PRIntervalTime _PR_UNIX_TicksPerSecond2(void);
+#define _MD_INTERVAL_INIT()
+#define _MD_GET_INTERVAL _PR_UNIX_GetInterval2
+#define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond2
+#endif
+
+#define _MD_INTERVAL_PER_MILLISEC() (_PR_MD_INTERVAL_PER_SEC() / 1000)
+#define _MD_INTERVAL_PER_MICROSEC() (_PR_MD_INTERVAL_PER_SEC() / 1000000)
+
+/************************************************************************/
+
+#define _MD_ERRNO() (errno)
+#define _MD_GET_SOCKET_ERROR() (errno)
+
+/************************************************************************/
+
+extern PRInt32 _MD_AvailableSocket(PRInt32 osfd);
+
+extern void _MD_StartInterrupts(void);
+extern void _MD_StopInterrupts(void);
+extern void _MD_DisableClockInterrupts(void);
+extern void _MD_BlockClockInterrupts(void);
+extern void _MD_UnblockClockInterrupts(void);
+extern void _MD_PauseCPU(PRIntervalTime timeout);
+
+extern PRStatus _MD_open_dir(struct _MDDir *, const char *);
+extern PRInt32 _MD_close_dir(struct _MDDir *);
+extern char * _MD_read_dir(struct _MDDir *, PRIntn);
+extern PRInt32 _MD_open(const char *name, PRIntn osflags, PRIntn mode);
+extern PRInt32 _MD_delete(const char *name);
+extern PRInt32 _MD_getfileinfo(const char *fn, PRFileInfo *info);
+extern PRInt32 _MD_getfileinfo64(const char *fn, PRFileInfo64 *info);
+extern PRInt32 _MD_getopenfileinfo(const PRFileDesc *fd, PRFileInfo *info);
+extern PRInt32 _MD_getopenfileinfo64(const PRFileDesc *fd, PRFileInfo64 *info);
+extern PRInt32 _MD_rename(const char *from, const char *to);
+extern PRInt32 _MD_access(const char *name, PRAccessHow how);
+extern PRInt32 _MD_mkdir(const char *name, PRIntn mode);
+extern PRInt32 _MD_rmdir(const char *name);
+extern PRInt32 _MD_accept_read(PRInt32 sock, PRInt32 *newSock,
+ PRNetAddr **raddr, void *buf, PRInt32 amount);
+extern PRInt32 _PR_UnixSendFile(PRFileDesc *sd, PRSendFileData *sfd,
+ PRTransmitFileFlags flags, PRIntervalTime timeout);
+
+extern PRStatus _MD_LockFile(PRInt32 osfd);
+extern PRStatus _MD_TLockFile(PRInt32 osfd);
+extern PRStatus _MD_UnlockFile(PRInt32 osfd);
+
+#define _MD_OPEN_DIR(dir, name) _MD_open_dir(dir, name)
+#define _MD_CLOSE_DIR(dir) _MD_close_dir(dir)
+#define _MD_READ_DIR(dir, flags) _MD_read_dir(dir, flags)
+#define _MD_OPEN(name, osflags, mode) _MD_open(name, osflags, mode)
+#define _MD_OPEN_FILE(name, osflags, mode) _MD_open(name, osflags, mode)
+extern PRInt32 _MD_read(PRFileDesc *fd, void *buf, PRInt32 amount);
+#define _MD_READ(fd,buf,amount) _MD_read(fd,buf,amount)
+extern PRInt32 _MD_write(PRFileDesc *fd, const void *buf, PRInt32 amount);
+#define _MD_WRITE(fd,buf,amount) _MD_write(fd,buf,amount)
+#define _MD_DELETE(name) _MD_delete(name)
+#define _MD_GETFILEINFO(fn, info) _MD_getfileinfo(fn, info)
+#define _MD_GETFILEINFO64(fn, info) _MD_getfileinfo64(fn, info)
+#define _MD_GETOPENFILEINFO(fd, info) _MD_getopenfileinfo(fd, info)
+#define _MD_GETOPENFILEINFO64(fd, info) _MD_getopenfileinfo64(fd, info)
+#define _MD_RENAME(from, to) _MD_rename(from, to)
+#define _MD_ACCESS(name, how) _MD_access(name, how)
+#define _MD_MKDIR(name, mode) _MD_mkdir(name, mode)
+#define _MD_MAKE_DIR(name, mode) _MD_mkdir(name, mode)
+#define _MD_RMDIR(name) _MD_rmdir(name)
+#define _MD_ACCEPT_READ(sock, newSock, raddr, buf, amount) _MD_accept_read(sock, newSock, raddr, buf, amount)
+
+#define _MD_LOCKFILE _MD_LockFile
+#define _MD_TLOCKFILE _MD_TLockFile
+#define _MD_UNLOCKFILE _MD_UnlockFile
+
+
+extern PRInt32 _MD_socket(int af, int type, int flags);
+#define _MD_SOCKET _MD_socket
+extern PRInt32 _MD_connect(PRFileDesc *fd, const PRNetAddr *addr,
+ PRUint32 addrlen, PRIntervalTime timeout);
+#define _MD_CONNECT _MD_connect
+extern PRInt32 _MD_accept(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *addrlen,
+ PRIntervalTime timeout);
+#define _MD_ACCEPT _MD_accept
+extern PRInt32 _MD_bind(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen);
+#define _MD_BIND _MD_bind
+extern PRInt32 _MD_listen(PRFileDesc *fd, PRIntn backlog);
+#define _MD_LISTEN _MD_listen
+extern PRInt32 _MD_shutdown(PRFileDesc *fd, PRIntn how);
+#define _MD_SHUTDOWN _MD_shutdown
+
+extern PRInt32 _MD_recv(PRFileDesc *fd, void *buf, PRInt32 amount,
+ PRIntn flags, PRIntervalTime timeout);
+#define _MD_RECV _MD_recv
+extern PRInt32 _MD_send(PRFileDesc *fd, const void *buf, PRInt32 amount,
+ PRIntn flags, PRIntervalTime timeout);
+#define _MD_SEND _MD_send
+extern PRInt32 _MD_recvfrom(PRFileDesc *fd, void *buf, PRInt32 amount,
+ PRIntn flags, PRNetAddr *addr, PRUint32 *addrlen,
+ PRIntervalTime timeout);
+#define _MD_RECVFROM _MD_recvfrom
+extern PRInt32 _MD_sendto(PRFileDesc *fd, const void *buf, PRInt32 amount,
+ PRIntn flags, const PRNetAddr *addr, PRUint32 addrlen,
+ PRIntervalTime timeout);
+#define _MD_SENDTO _MD_sendto
+extern PRInt32 _MD_writev(PRFileDesc *fd, const struct PRIOVec *iov,
+ PRInt32 iov_size, PRIntervalTime timeout);
+#define _MD_WRITEV _MD_writev
+
+extern PRInt32 _MD_socketavailable(PRFileDesc *fd);
+#define _MD_SOCKETAVAILABLE _MD_socketavailable
+extern PRInt64 _MD_socketavailable64(PRFileDesc *fd);
+#define _MD_SOCKETAVAILABLE64 _MD_socketavailable64
+
+#define _MD_PIPEAVAILABLE _MD_socketavailable
+
+extern PRInt32 _MD_pr_poll(PRPollDesc *pds, PRIntn npds,
+ PRIntervalTime timeout);
+#define _MD_PR_POLL _MD_pr_poll
+
+extern PRInt32 _MD_close(PRInt32 osfd);
+#define _MD_CLOSE_FILE _MD_close
+extern PRInt32 _MD_lseek(PRFileDesc*, PRInt32, PRSeekWhence);
+#define _MD_LSEEK _MD_lseek
+extern PRInt64 _MD_lseek64(PRFileDesc*, PRInt64, PRSeekWhence);
+#define _MD_LSEEK64 _MD_lseek64
+extern PRInt32 _MD_fsync(PRFileDesc *fd);
+#define _MD_FSYNC _MD_fsync
+
+extern PRInt32 _MD_socketpair(int af, int type, int flags, PRInt32 *osfd);
+#define _MD_SOCKETPAIR _MD_socketpair
+
+#define _MD_CLOSE_SOCKET _MD_close
+
+#ifndef NO_NSPR_10_SUPPORT
+#define _MD_STAT stat
+#endif
+
+extern PRStatus _MD_getpeername(PRFileDesc *fd, PRNetAddr *addr,
+ PRUint32 *addrlen);
+#define _MD_GETPEERNAME _MD_getpeername
+extern PRStatus _MD_getsockname(PRFileDesc *fd, PRNetAddr *addr,
+ PRUint32 *addrlen);
+#define _MD_GETSOCKNAME _MD_getsockname
+
+extern PRStatus _MD_getsockopt(PRFileDesc *fd, PRInt32 level,
+ PRInt32 optname, char* optval, PRInt32* optlen);
+#define _MD_GETSOCKOPT _MD_getsockopt
+extern PRStatus _MD_setsockopt(PRFileDesc *fd, PRInt32 level,
+ PRInt32 optname, const char* optval, PRInt32 optlen);
+#define _MD_SETSOCKOPT _MD_setsockopt
+
+extern PRStatus _MD_set_fd_inheritable(PRFileDesc *fd, PRBool inheritable);
+#define _MD_SET_FD_INHERITABLE _MD_set_fd_inheritable
+
+extern void _MD_init_fd_inheritable(PRFileDesc *fd, PRBool imported);
+#define _MD_INIT_FD_INHERITABLE _MD_init_fd_inheritable
+
+extern void _MD_query_fd_inheritable(PRFileDesc *fd);
+#define _MD_QUERY_FD_INHERITABLE _MD_query_fd_inheritable
+
+extern PRStatus _MD_gethostname(char *name, PRUint32 namelen);
+#define _MD_GETHOSTNAME _MD_gethostname
+
+extern PRStatus _MD_getsysinfo(PRSysInfo cmd, char *name, PRUint32 namelen);
+#define _MD_GETSYSINFO _MD_getsysinfo
+
+extern int _MD_unix_get_nonblocking_connect_error(int osfd);
+
+/* Memory-mapped files */
+
+struct _MDFileMap {
+ PRIntn prot;
+ PRIntn flags;
+ PRBool isAnonFM; /* when true, PR_CloseFileMap() must close the related fd */
+};
+
+extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size);
+#define _MD_CREATE_FILE_MAP _MD_CreateFileMap
+
+#define _MD_GET_MEM_MAP_ALIGNMENT() PR_GetPageSize()
+
+extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset,
+ PRUint32 len);
+#define _MD_MEM_MAP _MD_MemMap
+
+extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size);
+#define _MD_MEM_UNMAP _MD_MemUnmap
+
+extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap);
+#define _MD_CLOSE_FILE_MAP _MD_CloseFileMap
+
+extern PRStatus _MD_SyncMemMap(
+ PRFileDesc *fd,
+ void *addr,
+ PRUint32 len);
+#define _MD_SYNC_MEM_MAP _MD_SyncMemMap
+
+/*
+ * The standard (XPG4) gettimeofday() (from BSD) takes two arguments.
+ * On some SVR4 derivatives, gettimeofday() takes only one argument.
+ * The GETTIMEOFDAY macro is intended to hide this difference.
+ */
+#ifdef HAVE_SVID_GETTOD
+#define GETTIMEOFDAY(tp) gettimeofday(tp)
+#else
+#define GETTIMEOFDAY(tp) gettimeofday((tp), NULL)
+#endif
+
+#if defined(_PR_PTHREADS) && !defined(_PR_POLL_AVAILABLE)
+#define _PR_NEED_FAKE_POLL
+#endif
+
+#if defined(_PR_NEED_FAKE_POLL)
+
+/*
+ * Some platforms don't have poll(), but our pthreads code calls poll().
+ * As a temporary measure, I implemented a fake poll() using select().
+ * Here are the struct and macro definitions copied from sys/poll.h
+ * on Solaris 2.5.
+ */
+
+struct pollfd {
+ int fd;
+ short events;
+ short revents;
+};
+
+/* poll events */
+
+#define POLLIN 0x0001 /* fd is readable */
+#define POLLPRI 0x0002 /* high priority info at fd */
+#define POLLOUT 0x0004 /* fd is writeable (won't block) */
+#define POLLRDNORM 0x0040 /* normal data is readable */
+#define POLLWRNORM POLLOUT
+#define POLLRDBAND 0x0080 /* out-of-band data is readable */
+#define POLLWRBAND 0x0100 /* out-of-band data is writeable */
+
+#define POLLNORM POLLRDNORM
+
+#define POLLERR 0x0008 /* fd has error condition */
+#define POLLHUP 0x0010 /* fd has been hung up on */
+#define POLLNVAL 0x0020 /* invalid pollfd entry */
+
+extern int poll(struct pollfd *, unsigned long, int);
+
+#endif /* _PR_NEED_FAKE_POLL */
+
+/*
+** A vector of the UNIX I/O calls we use. These are here to smooth over
+** the rough edges needed for large files. All of NSPR's implmentaions
+** go through this vector using syntax of the form
+** result = _md_iovector.xxx64(args);
+*/
+
+#if defined(SOLARIS2_5)
+/*
+** Special case: Solaris 2.5.1
+** Solaris starts to have 64-bit file I/O in 2.6. We build on Solaris
+** 2.5.1 so that we can use the same binaries on both Solaris 2.5.1 and
+** 2.6. At run time, we detect whether 64-bit file I/O is available by
+** looking up the 64-bit file function symbols in libc. At build time,
+** we need to define the 64-bit file I/O datatypes that are compatible
+** with their definitions on Solaris 2.6.
+*/
+typedef PRInt64 off64_t;
+typedef PRUint64 ino64_t;
+typedef PRInt64 blkcnt64_t;
+struct stat64 {
+ dev_t st_dev;
+ long st_pad1[3];
+ ino64_t st_ino;
+ mode_t st_mode;
+ nlink_t st_nlink;
+ uid_t st_uid;
+ gid_t st_gid;
+ dev_t st_rdev;
+ long t_pad2[2];
+ off64_t st_size;
+ timestruc_t st_atim;
+ timestruc_t st_mtim;
+ timestruc_t st_ctim;
+ long st_blksize;
+ blkcnt64_t st_blocks;
+ char st_fstype[_ST_FSTYPSZ];
+ long st_pad4[8];
+};
+typedef struct stat64 _MDStat64;
+typedef off64_t _MDOff64_t;
+
+#elif defined(_PR_HAVE_OFF64_T)
+typedef struct stat64 _MDStat64;
+typedef off64_t _MDOff64_t;
+#elif defined(_PR_HAVE_LARGE_OFF_T)
+typedef struct stat _MDStat64;
+typedef off_t _MDOff64_t;
+#elif defined(_PR_NO_LARGE_FILES)
+typedef struct stat _MDStat64;
+typedef PRInt64 _MDOff64_t;
+#else
+#error "I don't know yet"
+#endif
+
+typedef PRIntn (*_MD_Fstat64)(PRIntn osfd, _MDStat64 *buf);
+typedef PRIntn (*_MD_Open64)(const char *path, int oflag, ...);
+typedef PRIntn (*_MD_Stat64)(const char *path, _MDStat64 *buf);
+typedef _MDOff64_t (*_MD_Lseek64)(PRIntn osfd, _MDOff64_t, PRIntn whence);
+typedef void* (*_MD_Mmap64)(
+ void *addr, PRSize len, PRIntn prot, PRIntn flags,
+ PRIntn fildes, _MDOff64_t offset);
+struct _MD_IOVector
+{
+ _MD_Open64 _open64;
+ _MD_Mmap64 _mmap64;
+ _MD_Stat64 _stat64;
+ _MD_Fstat64 _fstat64;
+ _MD_Lseek64 _lseek64;
+};
+extern struct _MD_IOVector _md_iovector;
+
+#endif /* prunixos_h___ */