74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program 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 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
/*
|
|
* Operating System Interface
|
|
*
|
|
* This provides access to useful OS routines from the sandbox architecture
|
|
*/
|
|
|
|
/**
|
|
* Access to the OS read() system call
|
|
*
|
|
* \param fd File descriptor as returned by os_open()
|
|
* \param buf Buffer to place data
|
|
* \param count Number of bytes to read
|
|
* \return number of bytes read, or -1 on error
|
|
*/
|
|
ssize_t os_read(int fd, void *buf, size_t count);
|
|
|
|
/**
|
|
* Access to the OS write() system call
|
|
*
|
|
* \param fd File descriptor as returned by os_open()
|
|
* \param buf Buffer containing data to write
|
|
* \param count Number of bytes to write
|
|
* \return number of bytes written, or -1 on error
|
|
*/
|
|
ssize_t os_write(int fd, const void *buf, size_t count);
|
|
|
|
/**
|
|
* Access to the OS open() system call
|
|
*
|
|
* \param pathname Pathname of file to open
|
|
* \param flags Flags, like O_RDONLY, O_RDWR
|
|
* \return file descriptor, or -1 on error
|
|
*/
|
|
int os_open(const char *pathname, int flags);
|
|
|
|
/**
|
|
* Access to the OS close() system call
|
|
*
|
|
* \param fd File descriptor to close
|
|
* \return 0 on success, -1 on error
|
|
*/
|
|
int os_close(int fd);
|
|
|
|
/**
|
|
* Access to the OS exit() system call
|
|
*
|
|
* This exits with the supplied return code, which should be 0 to indicate
|
|
* success.
|
|
*
|
|
* @param exit_code exit code for U-Boot
|
|
*/
|
|
void os_exit(int exit_code);
|