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Diffstat (limited to 'doc/usermatrix.txt')
| -rw-r--r-- | doc/usermatrix.txt | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/doc/usermatrix.txt b/doc/usermatrix.txt new file mode 100644 index 0000000..4c7191b --- /dev/null +++ b/doc/usermatrix.txt @@ -0,0 +1,53 @@ +Process/Syscall matrix +====================== + +System calls in this system: + process management: exit, waitpid, fork, exec, kill + i/o: read write + information: getpid getppid gettime getprio + other: sleep, setprio + +There is also a "bogus" system call which attempts to use an invalid +system call code; this should be caught by the syscall handler and +the process should be terminated. + +These are the system calls which are used in each of the user-level +main functions. Some main functions only invoke certain system calls +when given specific command-line arguments. + +Note that some system calls are nested inside library functions - e.g., +cwrite*() and swrite*() perform write(), etc. + + progABC runs for userA, userB, and userC + progDE runs for userD and userE + progFG runs for userF and userG + progKL runs for userK and userL + progMN runs for userM and userN + progTUV runs for userT, userU, and userV + all others run individual main functions + + baseline system calls in use +prog ext wtp for exe rea wrt gpi gpp gti kil slp gtp stp bog +----- --- --- --- --- --- --- --- --- --- --- --- --- --- --- +init . X . . . X . . . . . . . . +idle X . . . . X X . X . . X X . +shell X X X X X X . . . . . . . . +----- --- --- --- --- --- --- --- --- --- --- --- --- --- --- +abc X . . . . X . . . . . . . . +de . . . . . X . . . . . . . . +fg X . . . . X . . . . X . . . +h X . X X . X . . . . X . . . +i X X X X . X . . . X X . . . +j X . X X . X . . . . . . . . +kl X . X X . X . . . . X . . . +mn X . X X . X . . . . . . . . +p X . . . . X . . X . X . . . +q X . . . . X . . . . . . . X +r X . X . . X X X . . X . . . +s X . . . . X . . . . X . . . +tuv X X X X . X . . . X X . . . +w X . . . . X X . X . X . . . +x X . . . . X . . . . . . . . +y X . . . . X X . . . X . . . +z X . . . . X X . . . X . . . +........................................................................... |