HP-UX Reference (11i v1 00/12) - 2 System Calls (vol 5)

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STANDARD Printed by: Nora Chuang [nchuang] STANDARD
/build/1111/BRICK/man2/!!!intro.2
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p
pstat(2) pstat(2)
if (count == 1) {
count = pstat_getfiledetails(&psfdetails, sizeof(psfdetails),
&psf.psf_fid);
if (count == 1) {
if ((psfdetails.psfd_hi_fileid == psf.psf_hi_fileid) &&
(psfdetails.psfd_lo_fileid == psf.psf_lo_fileid) &&
(psfdetails.psfd_hi_nodeid == psf.psf_hi_nodeid) &&
(psfdetails.psfd_lo_nodeid == psf.psf_lo_nodeid)) {
printf("Success\n");
}
else {
printf("State changed\n");
}
}
else {
perror("pstat_getfiledetails()");
}
}
else {
perror("pstat_getfile2");
}
close(fd);
}
/*
* Example 9: Acquire detailed information about a stream
*/
main()
{
struct pst_fileinfo2 psf;
struct pst_stream psfstream[3];
int rv, count, fd;
fd = open("/dev/echo", O_RDONLY);
rv = pstat_getfile2(&psf, sizeof(psf), 0, fd, getpid());
if (rv == 1) {
/*
* Ask for 3 structures (head + module(s) + driver).
* If there are no modules, we expect 2 structures (head, driver)
* If there is 1 module, we expect 3 structures (head, module,
* driver)
* If there is more than 1 module, we expect 3 structures
* (head, modules).
*/
count = pstat_getstream(psfstream, sizeof(struct pst_stream), 3, 0,
&(psf.psf_fid));
if (count > 0) {
if ((psfstream[0].val.head.pst_hi_fileid ==
psf.psf_hi_fileid) &&
(psfstream[0].val.head.pst_lo_fileid ==
psf.psf_lo_fileid) &&
(psfstream[0].val.head.pst_hi_nodeid ==
psf.psf_hi_nodeid) &&
(psfstream[0].val.head.pst_lo_nodeid ==
psf.psf_lo_nodeid)) {
printf("Success\n");
printf("The major number of the stream is %d\n",
psfstream[0].val.head.pst_dev_major);
} else {
Section 2−−230 − 13 − HP-UX Release 11i: December 2000
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