Commit | Line | Data |
---|---|---|
9e8e5516 C |
1 | /* psapselect.c - PPM: map descriptors */ |
2 | ||
3 | #ifndef lint | |
4 | static char *rcsid = "$Header: /f/osi/psap2/RCS/psapselect.c,v 7.1 91/02/22 09:37:53 mrose Interim $"; | |
5 | #endif | |
6 | ||
7 | /* | |
8 | * $Header: /f/osi/psap2/RCS/psapselect.c,v 7.1 91/02/22 09:37:53 mrose Interim $ | |
9 | * | |
10 | * | |
11 | * $Log: psapselect.c,v $ | |
12 | * Revision 7.1 91/02/22 09:37:53 mrose | |
13 | * Interim 6.8 | |
14 | * | |
15 | * Revision 7.0 89/11/23 22:14:36 mrose | |
16 | * Release 6.0 | |
17 | * | |
18 | */ | |
19 | ||
20 | /* | |
21 | * NOTICE | |
22 | * | |
23 | * Acquisition, use, and distribution of this module and related | |
24 | * materials are subject to the restrictions of a license agreement. | |
25 | * Consult the Preface in the User's Manual for the full terms of | |
26 | * this agreement. | |
27 | * | |
28 | */ | |
29 | ||
30 | ||
31 | /* LINTLIBRARY */ | |
32 | ||
33 | #include <stdio.h> | |
34 | #include <signal.h> | |
35 | #include "ppkt.h" | |
36 | ||
37 | /* \f map presentation descriptors for select() */ | |
38 | ||
39 | int PSelectMask (sd, mask, nfds, pi) | |
40 | int sd; | |
41 | fd_set *mask; | |
42 | int *nfds; | |
43 | struct PSAPindication *pi; | |
44 | { | |
45 | SBV smask; | |
46 | register struct psapblk *pb; | |
47 | struct SSAPindication sis; | |
48 | register struct SSAPabort *sa = &sis.si_abort; | |
49 | ||
50 | missingP (mask); | |
51 | missingP (nfds); | |
52 | missingP (pi); | |
53 | ||
54 | smask = sigioblock (); | |
55 | ||
56 | if ((pb = findpblk (sd)) == NULL) { | |
57 | (void) sigiomask (smask); | |
58 | return psaplose (pi, PC_PARAMETER, NULLCP, | |
59 | "invalid presentation descriptor"); | |
60 | } | |
61 | ||
62 | if (SSelectMask (pb -> pb_fd, mask, nfds, &sis) == NOTOK) | |
63 | switch (sa -> sa_reason) { | |
64 | case SC_WAITING: | |
65 | (void) sigiomask (smask); | |
66 | return psaplose (pi, PC_WAITING, NULLCP, NULLCP); | |
67 | ||
68 | default: | |
69 | (void) ss2pslose (pb, pi, "SSelectMask", sa); | |
70 | freepblk (pb); | |
71 | (void) sigiomask (smask); | |
72 | return NOTOK; | |
73 | } | |
74 | ||
75 | (void) sigiomask (smask); | |
76 | ||
77 | return OK; | |
78 | } |