The Design of the UNIX Operating SystemPrentice-Hall, 1986 - 471 Seiten This is the first, and still, the most comprehensive book to describe the sophisticated workings of the UNIX System V kernel--the internal algorithms, the structures that form the basis of the UNIX operating system, and their relationship to the programming interface. System programmers will gain a better understanding of how the kernel works and will be able to compare algorithms used in the UNIX system to algorithms used in other operating systems. Programmers on UNIX systems will gain a deeper understanding of how their programs interact with the system and can thereby code more efficient programs. |
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Seite 376
... semaphore descriptor ( 2 ) array of semaphore operations ( 3 ) number of elements in array output : start value of last semaphore operated on check legality of semaphore descriptor ; start : read array of semaphore operations from user ...
... semaphore descriptor ( 2 ) array of semaphore operations ( 3 ) number of elements in array output : start value of last semaphore operated on check legality of semaphore descriptor ; start : read array of semaphore operations from user ...
Seite 400
Maurice J. Bach. struct semaphore { int lock ; } ; Init ( semaphore ) struct semaphore semaphore ; { } semaphore.lock - 1 ; Pprim ( semaphore ) struct semaphore semaphore ; { } while ( read_and_clear ( semaphore.lock ) ) ; Vprim ...
Maurice J. Bach. struct semaphore { int lock ; } ; Init ( semaphore ) struct semaphore semaphore ; { } semaphore.lock - 1 ; Pprim ( semaphore ) struct semaphore semaphore ; { } while ( read_and_clear ( semaphore.lock ) ) ; Vprim ...
Seite 402
... semaphore output : none { Pprim ( semaphore.lock ) ; increment ( semaphore.value ) ; if ( semaphore.value < = 0 ) { remove first process from semaphore sleep list ; make it ready to run ( wake it up ) ; } Vprim ( semaphore.lock ) ...
... semaphore output : none { Pprim ( semaphore.lock ) ; increment ( semaphore.value ) ; if ( semaphore.value < = 0 ) { remove first process from semaphore sleep list ; make it ready to run ( wake it up ) ; } Vprim ( semaphore.lock ) ...
Inhalt
PREFACE | 6 |
INTRODUCTION TO THE KERNEL | 18 |
4 | 23 |
Urheberrecht | |
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addr algorithm blkno block number buffer cache byte offset Chapter char child process client process contains context switch copy creates current directory data structures described device drivers disk block example exec exit file descriptor file name file system flag free inodes free list function hardware hash queue header implementation inode number input interface interrupt handler invokes kernel allocates kernel mode linked list lock loop mount multiprocessor named pipe open system call output page table parameters parent process path name permission pointer priority process executes process sleeps process table program in Figure ptrace reference count region table remote file remote machine satellite process scheduling Section semaphore semaphore operations semaphore value server process setuid shared memory signal socket specified struct stub process super block superuser swap device swapper terminal time_t UNIX system unlink user file descriptor user mode waiting write
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