_winnt.h

Netscape NSPR库源码

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 * 
 * The Original Code is the Netscape Portable Runtime (NSPR).
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are 
 * Copyright (C) 1998-2000 Netscape Communications Corporation.  All
 * Rights Reserved.
 * 
 * Contributor(s):
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL"), in which case the provisions of the GPL are applicable 
 * instead of those above.  If you wish to allow use of your 
 * version of this file only under the terms of the GPL and not to
 * allow others to use your version of this file under the MPL,
 * indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by
 * the GPL.  If you do not delete the provisions above, a recipient
 * may use your version of this file under either the MPL or the
 * GPL.
 */

#ifndef nspr_win32_defs_h___
#define nspr_win32_defs_h___

/* Need to force service-pack 3 extensions to be defined by
** setting _WIN32_WINNT to NT 4.0 for winsock.h, winbase.h, winnt.h.
*/ 
#ifndef  _WIN32_WINNT
    #define _WIN32_WINNT 0x0400
#elif   (_WIN32_WINNT < 0x0400)
    #undef  _WIN32_WINNT
    #define _WIN32_WINNT 0x0400
#endif /* _WIN32_WINNT */

#include <windows.h>
#include <winsock.h>
#include <errno.h>

#include "prio.h"
#include "prclist.h"

/*
 * Internal configuration macros
 */

#define PR_LINKER_ARCH      "win32"
#define _PR_SI_SYSNAME        "WINNT"
#define _PR_SI_ARCHITECTURE   "x86"    /* XXXMB hardcode for now */

#define HAVE_DLL
#define HAVE_CUSTOM_USER_THREADS
#define HAVE_THREAD_AFFINITY
#define _PR_HAVE_ATOMIC_OPS
#define _PR_HAVE_ATOMIC_CAS
#define PR_HAVE_WIN32_NAMED_SHARED_MEMORY
#define _PR_HAVE_PEEK_BUFFER
#define _PR_PEEK_BUFFER_MAX (32 * 1024)
#define _PR_FD_NEED_EMULATE_MSG_PEEK(fd) \
    (!(fd)->secret->nonblocking && (fd)->secret->inheritable != _PR_TRI_TRUE)

/* --- Common User-Thread/Native-Thread Definitions --------------------- */

/* --- Globals --- */
extern struct PRLock                      *_pr_schedLock;

/* --- Typedefs --- */
typedef void (*FiberFunc)(void *);

#define PR_NUM_GCREGS           8
typedef PRInt32	                PR_CONTEXT_TYPE[PR_NUM_GCREGS];
#define GC_VMBASE               0x40000000
#define GC_VMLIMIT              0x00FFFFFF

#define _MD_MAGIC_THREAD	0x22222222
#define _MD_MAGIC_THREADSTACK	0x33333333
#define _MD_MAGIC_SEGMENT	0x44444444
#define _MD_MAGIC_DIR		0x55555555

struct _MDCPU {
    int              unused;
};

enum _MDIOModel {
    _MD_BlockingIO = 0x38,
    _MD_MultiWaitIO = 0x49
};

typedef struct _MDOverlapped {
    OVERLAPPED overlapped;              /* Used for async I/O */

    enum _MDIOModel ioModel;            /* The I/O model to implement
                                         * using overlapped I/O.
                                         */
    union {
        struct _MDThread *mdThread;     /* For blocking I/O, this structure
                                         * is embedded in the _MDThread
                                         * structure.
                                         */
        struct {
            PRCList links;              /* for group->io_ready list */
            struct PRRecvWait *desc;    /* For multiwait I/O, this structure
                                         * is associated with a PRRecvWait
                                         * structure.
                                         */
            struct PRWaitGroup *group;
            struct TimerEvent *timer;
            DWORD error;
        } mw;
    } data;
} _MDOverlapped;

struct _MDThread {
        /* The overlapped structure must be first! */
    struct _MDOverlapped overlapped;    /* Used for async IO for this thread */
    void            *acceptex_buf;      /* Used for AcceptEx() */
    TRANSMIT_FILE_BUFFERS *xmit_bufs;   /* Used for TransmitFile() */
    HANDLE           blocked_sema;      /* Threads block on this when waiting
                                         * for IO or CondVar.
                                         */
    PRInt32          blocked_io_status; /* Status of the completed IO */
    PRInt32          blocked_io_bytes;  /* Bytes transferred for completed IO */
    PRInt32          blocked_io_error;  /* Save error if status is FALSE */
    HANDLE           handle;
    PRUint32         id;
    void            *sp;                /* only valid when suspended */
    PRUint32         magic;             /* for debugging */
    PR_CONTEXT_TYPE  gcContext;         /* Thread context for GC */
	struct _PRCPU    *thr_bound_cpu;		/* thread bound to cpu */
	PRBool   		 interrupt_disabled;/* thread cannot be interrupted */
	HANDLE 			 thr_event;			/* For native-threads-only support,
											thread blocks on this event		*/

    /* The following are used only if this is a fiber */
    void            *fiber_id;          /* flag whether or not this is a fiber*/
    FiberFunc        fiber_fn;          /* main fiber routine */
    void            *fiber_arg;         /* arg to main fiber routine */
    PRUint32         fiber_stacksize;   /* stacksize for fiber */
    PRInt32          fiber_last_error;  /* last error for the fiber */
};

struct _MDThreadStack {
    PRUint32           magic;          /* for debugging */
};

struct _MDSegment {
    PRUint32           magic;          /* for debugging */
};

#undef PROFILE_LOCKS

struct _MDLock {
    CRITICAL_SECTION mutex;          /* this is recursive on NT */
#ifdef PROFILE_LOCKS
    PRInt32 hitcount;
    PRInt32 misscount;
#endif
};

struct _MDDir {
    HANDLE           d_hdl;
    WIN32_FIND_DATA  d_entry;
    PRBool           firstEntry;     /* Is this the entry returned
                                      * by FindFirstFile()? */
    PRUint32         magic;          /* for debugging */
};

struct _MDCVar {
    PRUint32         unused;
};

struct _MDSemaphore {
    HANDLE           sem;
};

struct _MDFileDesc {
    PRInt32 osfd;    /* The osfd can come from one of three spaces:
                      * - For stdin, stdout, and stderr, we are using
                      *   the libc file handle (0, 1, 2), which is an int.
                      * - For files and pipes, we are using Win32 HANDLE,
                      *   which is a void*.
                      * - For sockets, we are using Winsock SOCKET, which
                      *   is a u_int.
                      */
    PRBool io_model_committed;  /* The io model (blocking or nonblocking)
                                 * for this osfd has been committed and
                                 * cannot be changed.  The osfd has been
                                 * either associated with the io
                                 * completion port or made nonblocking. */
    PRBool sync_file_io;        /* Use synchronous file I/O on the osfd
                                 * (a file handle) */
    PRBool accepted_socket;     /* Is this an accepted socket (on the
                                 * server side)? */
    PRNetAddr peer_addr;        /* If this is an accepted socket, cache
                                 * the peer's address returned by
                                 * AcceptEx().  This is to work around
                                 * the bug that getpeername() on an
                                 * socket accepted by AcceptEx() returns
                                 * an all-zero net address. */
};

struct _MDProcess {
    HANDLE handle;
    DWORD id;
};


/* --- Misc stuff --- */
#define _MD_GET_SP(thread)            (thread)->md.gcContext[6]

/* --- NT security stuff --- */

extern void _PR_NT_InitSids(void);
extern void _PR_NT_FreeSids(void);
extern PRStatus _PR_NT_MakeSecurityDescriptorACL(
    PRIntn mode,
    DWORD accessTable[],
    PSECURITY_DESCRIPTOR *resultSD,
    PACL *resultACL
);
extern void _PR_NT_FreeSecurityDescriptorACL(
    PSECURITY_DESCRIPTOR pSD, PACL pACL);

/* --- IO stuff --- */

extern PRInt32 _md_Associate(HANDLE);
extern PRInt32 _PR_MD_CLOSE(PRInt32 osfd, PRBool socket);

#define _MD_OPEN                      _PR_MD_OPEN
#define _MD_OPEN_FILE                 _PR_MD_OPEN_FILE
#define _MD_READ                      _PR_MD_READ
#define _MD_WRITE                     _PR_MD_WRITE
#define _MD_WRITEV                    _PR_MD_WRITEV
#define _MD_LSEEK                     _PR_MD_LSEEK
#define _MD_LSEEK64                   _PR_MD_LSEEK64
#define _MD_CLOSE_FILE(f)             _PR_MD_CLOSE(f, PR_FALSE)
#define _MD_GETFILEINFO               _PR_MD_GETFILEINFO
#define _MD_GETFILEINFO64             _PR_MD_GETFILEINFO64
#define _MD_GETOPENFILEINFO           _PR_MD_GETOPENFILEINFO
#define _MD_GETOPENFILEINFO64         _PR_MD_GETOPENFILEINFO64
#define _MD_STAT                      _PR_MD_STAT
#define _MD_RENAME                    _PR_MD_RENAME     
#define _MD_ACCESS                    _PR_MD_ACCESS     
#define _MD_DELETE                    _PR_MD_DELETE     
#define _MD_MKDIR                     _PR_MD_MKDIR      
#define _MD_MAKE_DIR                  _PR_MD_MAKE_DIR
#define _MD_RMDIR                     _PR_MD_RMDIR      
#define _MD_LOCKFILE                  _PR_MD_LOCKFILE
#define _MD_TLOCKFILE                 _PR_MD_TLOCKFILE
#define _MD_UNLOCKFILE                _PR_MD_UNLOCKFILE

/* --- Socket IO stuff --- */
#define _MD_GET_SOCKET_ERROR()    WSAGetLastError()
#define _MD_SET_SOCKET_ERROR(_err) WSASetLastError(_err)

#define _MD_INIT_FILEDESC(fd)
#define _MD_MAKE_NONBLOCK             _PR_MD_MAKE_NONBLOCK
#define _MD_INIT_FD_INHERITABLE       _PR_MD_INIT_FD_INHERITABLE
#define _MD_QUERY_FD_INHERITABLE      _PR_MD_QUERY_FD_INHERITABLE
#define _MD_SHUTDOWN                  _PR_MD_SHUTDOWN
#define _MD_LISTEN                    _PR_MD_LISTEN
#define _MD_CLOSE_SOCKET(s)           _PR_MD_CLOSE(s, PR_TRUE)
#define _MD_SENDTO                    _PR_MD_SENDTO
#define _MD_RECVFROM                  _PR_MD_RECVFROM
#define _MD_SOCKETPAIR(s, type, proto, sv) -1
#define _MD_GETSOCKNAME               _PR_MD_GETSOCKNAME
#define _MD_GETPEERNAME               _PR_MD_GETPEERNAME
#define _MD_GETSOCKOPT                _PR_MD_GETSOCKOPT
#define _MD_SETSOCKOPT                _PR_MD_SETSOCKOPT
#define _MD_SELECT                    select