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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [io/] [fileio/] [v2_0/] [src/] [fio.h] - Rev 27
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#ifndef CYGONCE_FIO_H #define CYGONCE_FIO_H //============================================================================= // // fio.h // // Fileio private header // //============================================================================= //####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. // Copyright (C) 2002 Nick Garnett // // eCos is free software; you can redistribute it and/or modify it under // the terms of the GNU General Public License as published by the Free // Software Foundation; either version 2 or (at your option) any later version. // // eCos is distributed in the hope that it will be useful, but WITHOUT ANY // WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License along // with eCos; if not, write to the Free Software Foundation, Inc., // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. // // As a special exception, if other files instantiate templates or use macros // or inline functions from this file, or you compile this file and link it // with other works to produce a work based on this file, this file does not // by itself cause the resulting work to be covered by the GNU General Public // License. However the source code for this file must still be made available // in accordance with section (3) of the GNU General Public License. // // This exception does not invalidate any other reasons why a work based on // this file might be covered by the GNU General Public License. // // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. // at http://sources.redhat.com/ecos/ecos-license/ // ------------------------------------------- //####ECOSGPLCOPYRIGHTEND#### //============================================================================= //#####DESCRIPTIONBEGIN#### // // Author(s): nickg // Contributors: nickg // Date: 2000-05-25 // Purpose: Fileio private header // Description: This file contains private definitions for communication // between the parts of the fileio package. // // Usage: // #include "fio.h" // ... // // //####DESCRIPTIONEND#### // //============================================================================= #include <pkgconf/hal.h> #include <pkgconf/io_fileio.h> #include <pkgconf/isoinfra.h> #include <cyg/infra/cyg_type.h> #include <stddef.h> // NULL, size_t #include <unistd.h> #include <limits.h> #include <sys/types.h> #include <cyg/fileio/fileio.h> #include <cyg/fileio/sockio.h> #include <errno.h> #ifdef CYGPKG_KERNEL #include <pkgconf/kernel.h> #include <cyg/kernel/mutex.hxx> // mutex definitions #define FILEIO_MUTEX_LOCK(_m_) ((_m_).lock()) #define FILEIO_MUTEX_UNLOCK(_m_) ((_m_).unlock()) #else #define FILEIO_MUTEX_LOCK(_m_) #define FILEIO_MUTEX_UNLOCK(_m_) #endif //============================================================================= // POSIX API support #ifdef CYGPKG_POSIX #include <cyg/posix/export.h> #define CYG_FILEIO_FUNCTION_START() CYG_POSIX_FUNCTION_START() #define CYG_FILEIO_FUNCTION_FINISH() CYG_POSIX_FUNCTION_FINISH() #define CYG_FILEIO_SIGMASK_SET( __set, __oset ) \ CYG_PTHREAD_SIGMASK_SET( __set, __oset ) #define CYG_FILEIO_SIGPENDING() CYG_POSIX_SIGPENDING() #define CYG_FILEIO_DELIVER_SIGNALS( __mask ) \ CYG_POSIX_DELIVER_SIGNALS( __mask ) #else #define CYG_FILEIO_FUNCTION_START() CYG_EMPTY_STATEMENT #define CYG_FILEIO_FUNCTION_FINISH() CYG_EMPTY_STATEMENT #define CYG_FILEIO_SIGMASK_SET( __set, __oset ) CYG_EMPTY_STATEMENT #define CYG_FILEIO_SIGPENDING() (0) #define CYG_FILEIO_DELIVER_SIGNALS( __mask ) CYG_EMPTY_STATEMENT typedef int sigset_t; #endif //============================================================================= // Fileio function entry and return macros. // Handle entry to a fileio package function. #define FILEIO_ENTRY() \ CYG_REPORT_FUNCTYPE( "returning %d" ); \ CYG_FILEIO_FUNCTION_START(); \ // Do a fileio package defined return. This requires the error code // to be placed in errno, and if it is non-zero, -1 returned as the // result of the function. This also gives us a place to put any // generic tidyup handling needed for things like signal delivery and // cancellation. #define FILEIO_RETURN(err) \ CYG_MACRO_START \ int __retval = 0; \ CYG_FILEIO_FUNCTION_FINISH(); \ if( err != 0 ) __retval = -1, errno = err; \ CYG_REPORT_RETVAL( __retval ); \ return __retval; \ CYG_MACRO_END #define FILEIO_RETURN_VALUE(val) \ CYG_MACRO_START \ CYG_FILEIO_FUNCTION_FINISH(); \ CYG_REPORT_RETVAL( val ); \ return val; \ CYG_MACRO_END #define FILEIO_RETURN_VOID() \ CYG_MACRO_START \ CYG_FILEIO_FUNCTION_FINISH(); \ CYG_REPORT_RETURN(); \ return; \ CYG_MACRO_END //============================================================================= // Cancellation support // If the POSIX package is present we want to include cancellation points // in the routines that are defined to contain them. // The macro CYG_CANCELLATION_POINT does this. #ifdef CYGINT_ISO_PTHREAD_IMPL # include <pthread.h> # define CYG_CANCELLATION_POINT pthread_testcancel() #else # define CYG_CANCELLATION_POINT CYG_EMPTY_STATEMENT #endif //============================================================================= // Internal exports //----------------------------------------------------------------------------- // Exports from misc.cxx // Current directory info __externC cyg_mtab_entry *cdir_mtab_entry; __externC cyg_dir cdir_dir; __externC int cyg_mtab_lookup( cyg_dir *dir, const char **name, cyg_mtab_entry **mte); __externC void cyg_fs_lock( cyg_mtab_entry *mte, cyg_uint32 syncmode ); __externC void cyg_fs_unlock( cyg_mtab_entry *mte, cyg_uint32 syncmode ); //----------------------------------------------------------------------------- // Exports from fd.cxx __externC void cyg_fd_init(); __externC cyg_file *cyg_file_alloc(); __externC void cyg_file_free(cyg_file * fp); __externC int cyg_fd_alloc(int low); __externC void cyg_fd_assign(int fd, cyg_file *fp); __externC int cyg_fd_free(int fd); __externC cyg_file *cyg_fp_get( int fd ); __externC void cyg_fp_free( cyg_file *fp ); __externC void cyg_file_lock( cyg_file *fp, cyg_uint32 syncmode ); __externC void cyg_file_unlock( cyg_file *fp, cyg_uint32 syncmode ); //----------------------------------------------------------------------------- // Exports from socket.cxx __externC void cyg_nstab_init(); //----------------------------------------------------------------------------- #endif // ifndef CYGONCE_FIO_H // End of fio.h
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