Operating Systems: Design and ImplementationFrom one of America's leading authors of computer science books comes complete coverage of operating systems, plus all the design and implementation issues with a complete operating system--MINIX. |
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Page 137
... task to task . Messages to the clock task , for example , contain times , and messages to the terminal task specify the characters to use for the intraline editing functions erase - character and kill - line . REQUESTS Field Type ...
... task to task . Messages to the clock task , for example , contain times , and messages to the terminal task specify the characters to use for the intraline editing functions erase - character and kill - line . REQUESTS Field Type ...
Page 185
... task System task Disk task System task 3 Interrupt ( a ) Interrupt ( b ) Fig . 3-40 . ( a ) Worst case for reading a block requires six messages . ( b ) Best case for reading a block requires four messages . implementation of this ...
... task System task Disk task System task 3 Interrupt ( a ) Interrupt ( b ) Fig . 3-40 . ( a ) Worst case for reading a block requires six messages . ( b ) Best case for reading a block requires four messages . implementation of this ...
Page 471
... task * It also has five minor entry points : * put a process on one of the ready queues so it can be run remove a ... ( task , m_ptr ) int task ; message * m_ptr ; / * An interrupt has occurred . interrupt / * number of task to be started ...
... task * It also has five minor entry points : * put a process on one of the ready queues so it can be run remove a ... ( task , m_ptr ) int task ; message * m_ptr ; / * An interrupt has occurred . interrupt / * number of task to be started ...
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Operating Systems: Design and Implementation Andrew S. Tanenbaum,Albert S. Woodhull No preview available - 2009 |
Common terms and phrases
address space algorithm allocated bit map buffer bytes cache caller char character clock command compiler contains controller copy data segment deadlock define device drivers disk block diskette entry error example EXEC executed extern struct file descriptor file system filp flag floppy disk FORK fsck hardware header hole i-node IBM PC implement include h/const.h inode input interrupt kernel linked loop machine memory manager MINIX MINIX file system mode mounted MS-DOS needed no_sys operating system output page fault parameters password pointer problem proc proc_nr procedure process table PUBLIC int queue RAM disk register struct request return(OK scheduling semaphore server SETUID shown in Fig signal slot special file stack struct inode super_block system call task terminal UNIX update user process variables video RAM vir_bytes virtual address waiting zone