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    fdlib.h 13.55 KiB
    /*
    || This file is part of Pike. For copyright information see COPYRIGHT.
    || Pike is distributed under GPL, LGPL and MPL. See the file COPYING
    || for more information.
    || $Id: fdlib.h,v 1.59 2006/07/05 20:13:56 mast Exp $
    */
    
    #ifndef FDLIB_H
    #define FDLIB_H
    
    #include "global.h"
    #include "pike_macros.h"
    
    #include "pike_netlib.h"
    
    #ifdef HAVE_ERRNO_H
    #include <errno.h>
    #endif
    
    #ifdef HAVE_SYS_SELECT_H
    #include <sys/select.h>
    #endif
    
    #ifdef HAVE_FCNTL_H
    #include <fcntl.h>
    #endif
    
    #ifdef HAVE_SYS_STAT_H
    #include <sys/stat.h>
    #endif
    
    #ifdef HAVE_SYS_FILE_H
    #include <sys/file.h>
    #endif
    
    #ifdef HAVE_SOCKET_H
    #include <socket.h>
    #endif /* HAVE_SOCKET_H */
    
    #include "pike_netlib.h"
    
    #define fd_INTERPROCESSABLE   1
    #define fd_CAN_NONBLOCK       2
    #define fd_CAN_SHUTDOWN       4
    #define fd_BUFFERED           8
    #define fd_BIDIRECTIONAL     16
    #define fd_REVERSE	     32
    
    
    #if defined(HAVE_WINSOCK_H)
    
    #define HAVE_FD_FLOCK
    
    
    #define FILE_CAPABILITIES (fd_INTERPROCESSABLE)
    #define PIPE_CAPABILITIES (fd_INTERPROCESSABLE | fd_BUFFERED)
    #define SOCKET_CAPABILITIES (fd_BIDIRECTIONAL | fd_CAN_NONBLOCK | fd_CAN_SHUTDOWN)
    
    #ifndef FD_SETSIZE
    #define FD_SETSIZE MAX_OPEN_FILEDESCRIPTORS
    #endif
    
    #include <winbase.h>
    
    typedef int FD;
    
    #if _INTEGRAL_MAX_BITS >= 64
    typedef struct _stati64 PIKE_STAT_T;
    typedef __int64 PIKE_OFF_T;
    #define PRINTPIKEOFFT PRINTINT64
    #else
    typedef struct stat PIKE_STAT_T;
    typedef off_t PIKE_OFF_T;
    #define PRINTPIKEOFFT PRINTOFFT
    #endif
    
    #define SOCKFUN1(NAME,T1) PMOD_EXPORT int PIKE_CONCAT(debug_fd_,NAME) (FD,T1);
    #define SOCKFUN2(NAME,T1,T2) PMOD_EXPORT int PIKE_CONCAT(debug_fd_,NAME) (FD,T1,T2);
    #define SOCKFUN3(NAME,T1,T2,T3) PMOD_EXPORT int PIKE_CONCAT(debug_fd_,NAME) (FD,T1,T2,T3);
    #define SOCKFUN4(NAME,T1,T2,T3,T4) PMOD_EXPORT int PIKE_CONCAT(debug_fd_,NAME) (FD,T1,T2,T3,T4);
    #define SOCKFUN5(NAME,T1,T2,T3,T4,T5) PMOD_EXPORT int PIKE_CONCAT(debug_fd_,NAME) (FD,T1,T2,T3,T4,T5);
    
    
    #define fd_info(fd) debug_fd_info(dmalloc_touch_fd(fd))
    #define fd_query_properties(fd,Y) \
            debug_fd_query_properties(dmalloc_touch_fd(fd),(Y))
    #define fd_stat(F,BUF) debug_fd_stat(F,BUF)
    #define fd_lstat(F,BUF) debug_fd_stat(F,BUF)
    #define fd_open(X,Y,Z) dmalloc_register_fd(debug_fd_open((X),(Y),(Z)))
    #define fd_socket(X,Y,Z) dmalloc_register_fd(debug_fd_socket((X),(Y),(Z)))
    #define fd_pipe(X) debug_fd_pipe( (X) DMALLOC_POS )
    #define fd_accept(X,Y,Z) dmalloc_register_fd(debug_fd_accept((X),(Y),(Z)))
    
    #define fd_bind(fd,X,Y) debug_fd_bind(dmalloc_touch_fd(fd), (X), (Y))
    #define fd_getsockopt(fd,X,Y,Z,Q) debug_fd_getsockopt(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q))
    #define fd_setsockopt(fd,X,Y,Z,Q) debug_fd_setsockopt(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q))
    #define fd_recv(fd,X,Y,Z) debug_fd_recv(dmalloc_touch_fd(fd), (X), (Y),(Z))
    #define fd_getsockname(fd,X,Y) debug_fd_getsockname(dmalloc_touch_fd(fd), (X), (Y))
    #define fd_getpeername(fd,X,Y) debug_fd_getpeername(dmalloc_touch_fd(fd), (X), (Y))
    #define fd_recvfrom(fd,X,Y,Z,Q,P) debug_fd_recvfrom(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q),(P))
    #define fd_send(fd,X,Y,Z) debug_fd_send(dmalloc_touch_fd(fd), (X), (Y),(Z))
    #define fd_sendto(fd,X,Y,Z,Q,P) debug_fd_sendto(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q),(P))
    #define fd_shutdown(fd,X) debug_fd_shutdown(dmalloc_touch_fd(fd), (X))
    #define fd_listen(fd,X) debug_fd_listen(dmalloc_touch_fd(fd), (X))
    #define fd_close(fd) debug_fd_close(dmalloc_close_fd(fd))
    #define fd_write(fd,X,Y) debug_fd_write(dmalloc_touch_fd(fd),(X),(Y))
    #define fd_read(fd,X,Y) debug_fd_read(dmalloc_touch_fd(fd),(X),(Y))
    #define fd_lseek(fd,X,Y) debug_fd_lseek(dmalloc_touch_fd(fd),(X),(Y))
    #define fd_ftruncate(fd,X) debug_fd_ftruncate(dmalloc_touch_fd(fd),(X))
    #define fd_flock(fd,X) debug_fd_flock(dmalloc_touch_fd(fd),(X))
    #define fd_fstat(fd,X) debug_fd_fstat(dmalloc_touch_fd(fd),(X))
    #define fd_select debug_fd_select /* fixme */
    #define fd_ioctl(fd,X,Y) debug_fd_ioctl(dmalloc_touch_fd(fd),(X),(Y))
    #define fd_dup(fd) dmalloc_register_fd(debug_fd_dup(dmalloc_touch_fd(fd)))
    #define fd_dup2(fd,to) dmalloc_register_fd(debug_fd_dup2(dmalloc_touch_fd(fd),dmalloc_close_fd(to)))
    #define fd_connect(fd,X,Z) debug_fd_connect(dmalloc_touch_fd(fd),(X),(Z))
    
    
    /* Prototypes begin here */
    PMOD_EXPORT char *debug_fd_info(int fd);
    PMOD_EXPORT int debug_fd_query_properties(int fd, int guess);
    void fd_init();
    void fd_exit();
    PMOD_EXPORT int debug_fd_stat(const char *file, PIKE_STAT_T *buf);
    PMOD_EXPORT FD debug_fd_open(const char *file, int open_mode, int create_mode);
    PMOD_EXPORT FD debug_fd_socket(int domain, int type, int proto);
    PMOD_EXPORT int debug_fd_pipe(int fds[2] DMALLOC_LINE_ARGS);
    PMOD_EXPORT FD debug_fd_accept(FD fd, struct sockaddr *addr, ACCEPT_SIZE_T *addrlen);
    SOCKFUN2(bind, struct sockaddr *, int)
    PMOD_EXPORT int debug_fd_connect (FD fd, struct sockaddr *a, int len);
    SOCKFUN4(getsockopt,int,int,void*,ACCEPT_SIZE_T *)
    SOCKFUN4(setsockopt,int,int,void*,int)
    SOCKFUN3(recv,void *,int,int)
    SOCKFUN2(getsockname,struct sockaddr *,ACCEPT_SIZE_T *)
    SOCKFUN2(getpeername,struct sockaddr *,ACCEPT_SIZE_T *)
    SOCKFUN5(recvfrom,void *,int,int,struct sockaddr *,ACCEPT_SIZE_T *)
    SOCKFUN3(send,void *,int,int)
    SOCKFUN5(sendto,void *,int,int,struct sockaddr *,unsigned int)
    SOCKFUN1(shutdown, int)
    SOCKFUN1(listen, int)
    PMOD_EXPORT int debug_fd_close(FD fd);
    PMOD_EXPORT ptrdiff_t debug_fd_write(FD fd, void *buf, ptrdiff_t len);
    PMOD_EXPORT ptrdiff_t debug_fd_read(FD fd, void *to, ptrdiff_t len);
    PMOD_EXPORT PIKE_OFF_T debug_fd_lseek(FD fd, PIKE_OFF_T pos, int where);
    PMOD_EXPORT int debug_fd_ftruncate(FD fd, PIKE_OFF_T len);
    PMOD_EXPORT int debug_fd_flock(FD fd, int oper);
    PMOD_EXPORT int debug_fd_fstat(FD fd, PIKE_STAT_T *s);
    PMOD_EXPORT int debug_fd_select(int fds, FD_SET *a, FD_SET *b, FD_SET *c, struct timeval *t);
    PMOD_EXPORT int debug_fd_ioctl(FD fd, int cmd, void *data);
    PMOD_EXPORT FD debug_fd_dup(FD from);
    PMOD_EXPORT FD debug_fd_dup2(FD from, FD to);
    /* Prototypes end here */
    
    #undef SOCKFUN1
    #undef SOCKFUN2
    #undef SOCKFUN3
    #undef SOCKFUN4
    #undef SOCKFUN5
    
    #ifndef EWOULDBLOCK
    #define EWOULDBLOCK WSAEWOULDBLOCK
    #endif
    
    #ifndef EADDRINUSE
    #define EADDRINUSE WSAEADDRINUSE
    #endif
    
    #ifndef ENOTSUPP
    #define ENOTSUPP WSAEOPNOTSUPP
    #endif
    
    #define fd_RDONLY 1
    #define fd_WRONLY 2
    #define fd_RDWR 3
    #define fd_APPEND 4
    #define fd_CREAT 8
    #define fd_TRUNC 16
    #define fd_EXCL 32
    #define fd_BINARY 0
    #define fd_LARGEFILE 0
    
    #define fd_shutdown_read SD_RECEIVE
    #define fd_shutdown_write SD_SEND
    #define fd_shutdown_both SD_BOTH
    
    #define FD_PIPE -5
    #define FD_SOCKET -4
    #define FD_CONSOLE -3
    #define FD_FILE -2
    #define FD_NO_MORE_FREE -1
    
    
    #define fd_LOCK_SH 1
    #define fd_LOCK_EX 2
    #define fd_LOCK_UN 4
    #define fd_LOCK_NB 8
    
    struct my_fd_set_s
    {
      char bits[MAX_OPEN_FILEDESCRIPTORS/8];
    };
    
    typedef struct my_fd_set_s my_fd_set;
    
    #ifdef PIKE_DEBUG
    #define fd_check_fd(X) do { if(fd_type[X]>=0) Pike_fatal("FD_SET on closed fd %d (%d) %s:%d.\n",X,da_handle[X],__FILE__,__LINE__); }while(0)
    #else
    #define fd_check_fd(X)
    #endif
    #define my_FD_CLR(FD,S) ((S)->bits[(FD)>>3]&=~ (1<<(FD&7)))
    #define my_FD_SET(FD,S) do{ fd_check_fd(FD); ((S)->bits[(FD)>>3]|= (1<<(FD&7))); }while(0)
    #define my_FD_ISSET(FD,S) ((S)->bits[(FD)>>3]&(1<<(FD&7)))
    #define my_FD_ZERO(S) MEMSET(& (S)->bits, 0, sizeof(my_fd_set))
    
    #define fd_copy_my_fd_set_to_fd_set(TO,FROM,max) do {			\
       int e_,d_,max_=MINIMUM(MAX_OPEN_FILEDESCRIPTORS>>3,(max+7)>>3);	\
       (TO)->fd_count=0;							\
       for(e_=0;e_<max_;e_++)						\
       {									\
         int b_=(FROM)->bits[e_];						\
         if(b_)								\
         {									\
           for(d_=0;d_<8;d_++)						\
           {								\
             if(b_ & (1<<d_))						\
             {								\
               int fd_=(e_<<3)+d_;						\
               fd_check_fd(fd_);						\
               (TO)->fd_array[(TO)->fd_count++]=(SOCKET)da_handle[fd_];	\
             }								\
           }								\
         }									\
       }									\
    }while(0)
    
    extern HANDLE da_handle[MAX_OPEN_FILEDESCRIPTORS];
    extern int fd_type[MAX_OPEN_FILEDESCRIPTORS];
    
    #define fd_FD_CLR(X,Y) FD_CLR((SOCKET)da_handle[X],Y)
    #define fd_FD_SET(X,Y) \
     do { fd_check_fd(X); FD_SET((SOCKET)da_handle[X],Y); }while(0)
    #define fd_FD_ISSET(X,Y) FD_ISSET((SOCKET)da_handle[X],Y)
    #define fd_FD_ZERO(X) FD_ZERO(X)
    
    #ifndef S_IFSOCK
    #define S_IFSOCK 0140000
    #endif
    
    #ifndef S_IFIFO
    #define S_IFIFO 0010000
    #endif
    
    
    /* This may be inaccurate! /Hubbe */
    #if defined(__NT__) && !defined(__MINGW32__)
    #define EMULATE_DIRECT
    #endif
    
    #ifdef EMULATE_DIRECT
    
    #define d_name cFileName
    #define direct _WIN32_FIND_DATAA
    #define dirent direct
    #define MAXPATHLEN MAX_PATH
    #define NAMLEN(dirent) strlen((dirent)->d_name)
    
    typedef struct DIR_s
    {
      int first;
      WIN32_FIND_DATA find_data;
      HANDLE h;
    } DIR;
    
    PMOD_EXPORT DIR *opendir(char *dir);
    PMOD_EXPORT int readdir_r(DIR *dir, struct direct *tmp ,struct direct **d);
    PMOD_EXPORT void closedir(DIR *dir);
    
    #define HAVE_POSIX_READDIR_R
    
    /* Do not use these... */
    #if 0
    /* Why not? Want to use this one for _getdrive. /mast */
    #undef HAVE_DIRECT_H
    #endif
    #undef HAVE_NDIR_H
    #undef HAVE_SYS_NDIR_H
    #undef HAVE_DIRENT_H
    
    #endif
    
    
    
    #else /* HAVE_WINSOCK && !__GNUC__ */
    
    
    typedef int FD;
    typedef struct stat PIKE_STAT_T;
    typedef off_t PIKE_OFF_T;
    #define PRINTPIKEOFFT PRINTOFFT
    
    #define fd_info(X) ""
    #define fd_init()
    #define fd_exit()
    
    #define fd_RDONLY O_RDONLY
    #define fd_WRONLY O_WRONLY
    #define fd_RDWR O_RDWR
    #define fd_APPEND O_APPEND
    #define fd_CREAT O_CREAT
    #define fd_TRUNC O_TRUNC
    #define fd_EXCL O_EXCL
    #define fd_BINARY 0
    #ifdef O_LARGEFILE
    #define fd_LARGEFILE O_LARGEFILE
    #else /* !O_LARGEFILE */
    #define fd_LARGEFILE 0
    #endif /* O_LARGEFILE */
    
    #define fd_query_properties(X,Y) ( fd_INTERPROCESSABLE | (Y))
    
    #define fd_stat(F,BUF) stat(F,BUF)
    #define fd_lstat(F,BUF) lstat(F,BUF)
    #define fd_open(X,Y,Z) dmalloc_register_fd(open((X),(Y),(Z)))
    #define fd_socket(X,Y,Z) dmalloc_register_fd(socket((X),(Y),(Z)))
    #define fd_pipe pipe /* FIXME */
    #define fd_accept(X,Y,Z) dmalloc_register_fd(accept((X),(Y),(Z)))
    
    #define fd_bind(fd,X,Y) bind(dmalloc_touch_fd(fd), (X), (Y))
    #define fd_getsockopt(fd,X,Y,Z,Q) getsockopt(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q))
    #define fd_setsockopt(fd,X,Y,Z,Q) setsockopt(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q))
    #define fd_recv(fd,X,Y,Z) recv(dmalloc_touch_fd(fd), (X), (Y),(Z))
    #define fd_getsockname(fd,X,Y) getsockname(dmalloc_touch_fd(fd), (X), (Y))
    #define fd_getpeername(fd,X,Y) getpeername(dmalloc_touch_fd(fd), (X), (Y))
    #define fd_recvfrom(fd,X,Y,Z,Q,P) recvfrom(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q),(P))
    #define fd_send(fd,X,Y,Z) send(dmalloc_touch_fd(fd), (X), (Y),(Z))
    #define fd_sendto(fd,X,Y,Z,Q,P) sendto(dmalloc_touch_fd(fd), (X),(Y),(Z),(Q),(P))
    #define fd_shutdown(fd,X) shutdown(dmalloc_touch_fd(fd), (X))
    #define fd_listen(fd,X) listen(dmalloc_touch_fd(fd), (X))
    
    #ifdef HAVE_BROKEN_F_SETFD
    #define fd_close(fd) (set_close_on_exec(fd,0),close(dmalloc_close_fd(fd)))
    #else /* !HAVE_BROKEN_F_SETFD */
    #define fd_close(fd) close(dmalloc_close_fd(fd))
    #endif /* HAVE_BROKEN_F_SETFD */
    
    #define fd_write(fd,X,Y) write(dmalloc_touch_fd(fd),(X),(Y))
    #define fd_read(fd,X,Y) read(dmalloc_touch_fd(fd),(X),(Y))
    #define fd_lseek(fd,X,Y) lseek(dmalloc_touch_fd(fd),(X),(Y))
    #define fd_ftruncate(fd,X) ftruncate(dmalloc_touch_fd(fd),(X))
    #define fd_fstat(fd,X) fstat(dmalloc_touch_fd(fd),(X))
    #define fd_select select /* fixme */
    #define fd_ioctl(fd,X,Y) ioctl(dmalloc_touch_fd(fd),(X),(Y))
    #define fd_dup(fd) dmalloc_register_fd(dup(dmalloc_touch_fd(fd)))
    #define fd_connect(fd,X,Z) connect(dmalloc_touch_fd(fd),(X),(Z))
    
    #ifdef HAVE_BROKEN_F_SETFD
    #define fd_dup2(fd,to) (set_close_on_exec(to,0), dmalloc_register_fd(dup2(dmalloc_touch_fd(fd),dmalloc_close_fd(to))))
    #else /* !HAVE_BROKEN_F_SETFD */
    #define fd_dup2(fd,to) dmalloc_register_fd(dup2(dmalloc_touch_fd(fd),dmalloc_close_fd(to)))
    #endif /* HAVE_BROKEN_F_SETFD */
    
    #define fd_socketpair socketpair /* fixme */
    
    #define fd_fd_set fd_set
    #define fd_FD_CLR FD_CLR
    #define fd_FD_SET FD_SET
    #define fd_FD_ISSET FD_ISSET
    #define fd_FD_ZERO FD_ZERO
    
    #ifdef HAVE_FLOCK
    #define HAVE_FD_FLOCK
    #define fd_flock(fd,X) flock(dmalloc_touch_fd(fd),(X))
    #define fd_LOCK_SH LOCK_SH
    #define fd_LOCK_EX LOCK_EX
    #define fd_LOCK_UN LOCK_UN
    #define fd_LOCK_NB LOCK_NB
    #else
    #ifdef HAVE_LOCKF
    #define HAVE_FD_LOCKF
    #define fd_LOCK_EX F_LOCK
    #define fd_LOCK_UN F_ULOCK
    #define fd_LOCK_NB F_TLOCK
    
    #define fd_lockf(fd,mode) lockf(dmalloc_touch_fd(fd),mode,0)
    #endif
    #endif
    
    
    #define fd_shutdown_read 0
    #define fd_shutdown_write 1
    #define fd_shutdown_both 2
    
    struct my_fd_set_s
    {
      fd_set tmp;
    };
    
    typedef struct my_fd_set_s my_fd_set;
    
    #define my_FD_CLR(FD,S) FD_CLR((FD), & (S)->tmp)
    #define my_FD_SET(FD,S) FD_SET((FD), & (S)->tmp)
    #define my_FD_ISSET(FD,S) FD_ISSET((FD), & (S)->tmp)
    #define my_FD_ZERO(S) FD_ZERO(& (S)->tmp)
    
    #define fd_copy_my_fd_set_to_fd_set(TO,FROM,max) \
       MEMCPY((TO),&(FROM)->tmp,sizeof(*(TO)))
    
    #define FILE_CAPABILITIES (fd_INTERPROCESSABLE | fd_CAN_NONBLOCK)
    #ifndef __amigaos__
    #define PIPE_CAPABILITIES (fd_INTERPROCESSABLE | fd_BUFFERED | fd_CAN_NONBLOCK)
    #endif
    #define UNIX_SOCKET_CAPABILITIES (fd_INTERPROCESSABLE | fd_BIDIRECTIONAL | fd_CAN_NONBLOCK)
    #define SOCKET_CAPABILITIES (fd_INTERPROCESSABLE | fd_BIDIRECTIONAL | fd_CAN_NONBLOCK | fd_CAN_SHUTDOWN)
    
    #endif /* Don't HAVE_WINSOCK */
    
    #ifndef SEEK_SET
    #define SEEK_SET 0
    #endif
    
    #ifndef SEEK_CUR
    #define SEEK_CUR 1
    #endif
    
    #ifndef SEEK_END
    #define SEEK_END 2
    #endif
    
    #ifndef S_ISREG
    #ifdef S_IFREG
    #define S_ISREG(mode)   (((mode) & (S_IFMT)) == (S_IFREG))
    #else /* !S_IFREG */
    #define S_ISREG(mode)   (((mode) & (_S_IFMT)) == (_S_IFREG))
    #endif /* S_IFREG */
    #endif /* !S_ISREG */
    
    PMOD_EXPORT int pike_make_pipe(int *fds);
    PMOD_EXPORT int fd_from_object(struct object *o);
    PMOD_EXPORT void create_proxy_pipe(struct object *o, int for_reading);
    PMOD_EXPORT struct object *file_make_object_from_fd(int fd, int mode, int guess);
    PMOD_EXPORT extern struct program *port_program;
    
    #endif /* FDLIB_H */