Exemplo n.º 1
0
Arquivo: wc.py Projeto: jtauber/pyv6
def wc(fd, name):
    l = 0
    w = 0
    c = 0
    inword = False
    
    # while((n = read(fd, buf, sizeof(buf))) > 0)
    while True:
        n, buf = read(fd, 512)
        if n <= 0:
            break
        
        for i in range(n):
            c += 1
            if buf[i] == "\n":
                l += 1
            if strchr(" \r\t\n\v", buf[i]):
                inword = False
            elif not inword:
                w += 1
                inword = True
    
    if n < 0:
        printf(1, "wc: read error\n")
        exit_(1)
    
    printf(1, "%d %d %d %s\n", l, w, c, name)
Exemplo n.º 2
0
Arquivo: sh.py Projeto: jtauber/pyv6
def main(argv, argc):
    #static char buf[100];
    #int fd;
    
    # Assumes three file descriptors open.
    # while((fd = open("console", O_RDWR)) >= 0){
    while True:
        fd = open_("console", O_RDWR)
        if fd < 0:
            break
        
        if fd >= 3:
            close(fd)
            break
    
    # Read and run input commands.
    # while(getcmd(buf, sizeof(buf)) >= 0){
    while True:
        n, buf = getcmd(100)
        if n < 0:
            break
        
        if buf[0] == "c" and buf[1] == "d" and buf[2] == " ":
            # Clumsy but will have to do for now.
            # Chdir has no effect on the parent if run in the child.
            buf = buf[:strlen(buf) - 1]  # chop \n
            if chdir(buf[3:]) < 0:
                printf(2, "cannot cd %s\n", buf[3:])
            continue
        
        fork1(runcmd, parsecmd(buf))
        # wait()
    
    exit_()
Exemplo n.º 3
0
Arquivo: ls.py Projeto: jtauber/pyv6
def main(argc, argv):
    
    if argc < 2:
        ls(".")
        exit_()
    
    for i in range(1, argc):
        ls(argv[i])
    
    exit_()
Exemplo n.º 4
0
Arquivo: ln.py Projeto: jtauber/pyv6
def main(argc, argv):
    
    if argc != 3:
        printf(2, "Usage: ln old new\n")
        exit_()
    
    if link(argv[1], argv[2]) < 0:
        printf(2, "link %s %s: failed\n", argv[1], argv[2])
    
    exit_()
Exemplo n.º 5
0
Arquivo: kill.py Projeto: jtauber/pyv6
def main(argc, argv):
    
    if argc < 2:  # @@@ C source has < 1
        printf(2, "usage: kill pid...\n")
        exit_()
    
    for i in range(1, argc):
        kill(atoi(argv[i]))
    
    exit_()
Exemplo n.º 6
0
Arquivo: rm.py Projeto: jtauber/pyv6
def main(argc, argv):
    
    if argc < 2:
        printf(2, "Usage: rm files...\n")
        exit_()
    
    for i in range(1, argc):
        if unlink(argv[i]) < 0:
            printf(2, "rm: %s failed to delete\n", argv[i])
            break
    
    exit_()
Exemplo n.º 7
0
def main(argc, argv):

    if argc < 2:
        printf(2, "Usage: mkdir files...\n")
        exit_()

    for i in range(1, argc):
        if mkdir(argv[i]) < 0:
            printf(2, "mkdir: %s failed to create\n", argv[i])
            break

    exit_()
Exemplo n.º 8
0
def opentest():
    printf(stdout, "open test\n")
    fd = open_("echo", 0)
    if fd < 0:
        printf(stdout, "open echo failed!\n")
        exit_()
    close(fd)
    fd = open_("doesnotexist", 0)
    if fd >= 0:
        printf(stdout, "open doesnotexist succeeded!\n")
        exit_()
    printf(stdout, "open test ok\n")
Exemplo n.º 9
0
Arquivo: cat.py Projeto: jtauber/pyv6
def cat(fd):
    
    # while((n = read(fd, buf, sizeof(buf))) > 0)
    while True:
        n, buf = read(fd, 512)
        if n <= 0:
            break
        write(1, buf, n)
    
    if n < 0:
        printf(1, "cat: read error\n")  # @@@ should that be 2?
    
    exit_(1)
Exemplo n.º 10
0
def forktest():
    printf(1, "fork test\n")
    
    for n in range(1000):
        pid = fork()
        if pid < 0:
            break
        if pid == 0:
            exit_()
    
    if n == 1000:
        printf(1, "fork claimed to work 1000 times!\n")
        exit_()
    
    while n > 0:
        if wait() < 0:
            printf(1, "wait stopped early\n")
            exit_(1)
        n -= 1
    
    if wait() != -1:
        printf(1, "wait got too many\n")
        exit_(1)
    
    printf(1, "fork test OK\n")
Exemplo n.º 11
0
def main(argc, argv):
    
    printf(1, "usertests starting\n")
    
    if open_("usertests.ran", 0) >= 0:
        printf(1, "already ran user tests -- rebuild fs.img\n")
        exit_()
    close(open_("usertests.ran", O_CREATE))
    
    opentest()
    writetest()
    writetest1()
    createtest()
    
    # mem()
    # pipe1()
    # preempt()
    # exitwait()
    #
    # rmdot()
    # fourteen()
    # bigfile()
    # subdir()
    # concreate()
    # linktest()
    # unlinkread()
    # createdelete()
    # twofiles()
    # sharedfd()
    # dirfile()
    # iref()
    # forktest()
    # bigdir()
    
    exectest()
    
    exit_()
Exemplo n.º 12
0
Arquivo: grep.py Projeto: jtauber/pyv6
def main(argc, argv):
    if argc <= 1:
        printf(2, "usage: grep pattern [file ...]\n")
        exit_()
    pattern = argv[1]

    if argc <= 2:
        grep(pattern, 0)
        exit_()

    for i in range(2, argc):
        fd = open_(argv[i], 0)
        if fd < 0:
            printf(1, "grep: cannot open %s\n", argv[i])
            exit_()
        grep(pattern, fd)
        close(fd)
    exit_()
Exemplo n.º 13
0
Arquivo: wc.py Projeto: jtauber/pyv6
def main(argc, argv):
    if argc <= 1:
        wc(0, "")
        exit_()
    
    for i in range(1, argc):
        fd = open_(argv[i], 0)
        if fd < 0:
            printf(1, "wc: cannot open %s\n", argv[i])  # @@@ xv6 had 'cat' for 'wc'
            exit_()
        wc(fd, argv[i])
        close(fd)
    
    exit_()
Exemplo n.º 14
0
Arquivo: cat.py Projeto: jtauber/pyv6
def main(argc, argv):
    
    if argc <= 1:
        cat(0)
        exit_()
    
    for i in range(1, argc):
        fd = open_(argv[i], 0)
        if fd < 0:
            printf(1, "cat: cannot open %s\n", argv[i])  # @@@ should that be 2?
            exit_()
        cat(fd)
        close(fd)
    
    exit_()
Exemplo n.º 15
0
def main(argc, argv):
    
    if fork() > 0:
        sleep(5)  # Let child exit before parent
    
    exit_()
Exemplo n.º 16
0
def main(argc, argv):
    forktest()
    exit_()
Exemplo n.º 17
0
def exectest():
    printf(stdout, "exec test\n")
    if exec_("echo", echoargv) < 0:
        printf(stdout, "exec echo failed\n")
        exit_()
Exemplo n.º 18
0
Arquivo: sh.py Projeto: jtauber/pyv6
def runcmd(cmd):
    p = [0, 0]
    
    if cmd == 0:
        exit_()
    
    if cmd.type == EXEC:
        ecmd = cmd
        if ecmd.argv[0] == 0:
            exit_()
        exec_(ecmd.argv[0], ecmd.argv)
        printf(2, "exec %s failed\n", ecmd.argv[0])
        
    elif cmd.type == REDIR:
        rcmd = cmd
        close(rcmd.fd)
        if open_(rcmd.file, rcmd.mode) < 0:
            printf(2, "open %s failed\n", rcmd.file)
            exit_()
        runcmd(rcmd.cmd)
        
    elif cmd.type == LIST:
        lcmd = cmd
        # if fork1() == 0:
        #     runcmd(lcmd.left)
        # wait()
        # runcmd(lcmd.right)
        fork1(runcmd, lcmd.left)
        wait()
        runcmd(lcmd.right)
        
    elif cmd.type == PIPE:
        pcmd = cmd
        if pipe(p) < 0:
            panic("pipe")
        if fork1() == 0:
            close(1)
            dup(p[1])
            close(p[0])
            close(p[1])
            runcmd(pcmd.left)
        if fork1() == 0:
            close(0)
            dup(p[0])
            close(p[0])
            close(p[1])
            runcmd(pcmd.right)
        close(p[0])
        close(p[1])
        wait()
        wait()
        
    elif cmd.type == BACK:
        bcmd = cmd
        if fork1() == 0:
            runcmd(bcmd.cmd)
        
    else:
        panic("runcmd")
    
    exit_()
Exemplo n.º 19
0
Arquivo: sh.py Projeto: jtauber/pyv6
def panic(s):
    printf(2, "%s\n", s)
    exit_()
Exemplo n.º 20
0
def writetest1():
    buf = "\0" * 2048
    
    printf(stdout, "big files test\n")
    
    fd = open_("big", O_CREATE | O_RDWR)
    
    if fd < 0:
        printf(stdout, "error: creat big failed!\n")
        exit_()
    
    for i in range(MAXFILE):
        buf = chr(i % 256) + buf[1:]
        
        if write(fd, buf, 512) != 512:
            printf(stdout, "error: write big file failed\n", i)
            exit_()
    
    close(fd)
    
    fd = open_("big", O_RDONLY)
    
    if fd < 0:
        printf(stdout, "error: open big failed!\n")
        exit_()
    
    n = 0
    while True:
        i, buf = read(fd, 512)
        if i == 0:
            if n == MAXFILE - 1:
                printf(stdout, "read only %d blocks from big", n)
                exit_()
            break
        elif i != 512:
            printf(stdout, "read failed %d\n", i)
            exit_()
        
        if buf[0] != chr(n % 256):
            printf(stdout, "read content of block %d is %d\n", n, buf[0])
            exit_()
        n += 1
    
    close(fd)
    
    if unlink("big") < 0:
        printf(stdout, "unlink big failed\n")
        exit_()
    printf(stdout, "big files ok\n")
Exemplo n.º 21
0
def writetest():
    
    printf(stdout, "small file test\n")
    fd = open_("small", O_CREATE | O_RDWR)
    if fd >= 0:
        printf(stdout, "creat small succeeded; ok\n")
    else:
        printf(stdout, "error: creat small failed!\n")
        exit_()
    
    for i in range(100):
        if write(fd, "aaaaaaaaaa", 10) != 10:
            printf(stdout, "error: write aa %d new file failed\n", i)
            exit_()
        if write(fd, "bbbbbbbbbb", 10) != 10:
            printf(stdout, "error: write bb %d new file failed\n", i)
            exit_()
    
    printf(stdout, "writes ok\n")
    close(fd)
    fd = open_("small", O_RDONLY)
    
    if fd >= 0:
        printf(stdout, "open small succeeded ok\n")
    else:
        printf(stdout, "error: open small failed!\n")
        exit_()
    
    i, buf = read(fd, 2000)
    if i == 2000:
        printf(stdout, "read succeeded ok\n")
    else:
        printf(stdout, "read failed\n")
        exit_()
    close(fd)
    
    if unlink("small") < 0:
        printf(stdout, "unlink small failed\n")
        exit_()
    
    printf(stdout, "small file test ok\n")
Exemplo n.º 22
0
Arquivo: echo.py Projeto: jtauber/pyv6
def main(argc, argv):

    for i in range(1, argc):
        printf(1, "%s%s", argv[i], " " if i + 1 < argc else "\n")

    exit_()