Commit | Line | Data |
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bad3df67 JG |
1 | /* Define how to access the int that the wait system call stores. |
2 | This has been compatible in all Unix systems since time immemorial, | |
3 | but various well-meaning people have defined various different | |
4 | words for the same old bits in the same old int (sometimes claimed | |
5 | to be a struct). We just know it's an int and we use these macros | |
6 | to access the bits. */ | |
b37af01c | 7 | |
bad3df67 JG |
8 | /* The following macros are defined equivalently to their definitions |
9 | in POSIX.1. We fail to define WNOHANG and WUNTRACED, which POSIX.1 | |
10 | <sys/wait.h> defines, since our code does not use waitpid(). We | |
11 | also fail to declare wait() and waitpid(). */ | |
b37af01c | 12 | |
29a766d2 | 13 | #ifndef WIFEXITED |
bad3df67 | 14 | #define WIFEXITED(w) (((w)&0377) == 0) |
29a766d2 MM |
15 | #endif |
16 | ||
17 | #ifndef WIFSIGNALED | |
bad3df67 | 18 | #define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0) |
29a766d2 MM |
19 | #endif |
20 | ||
21 | #ifndef WIFSTOPPED | |
93bd5493 PB |
22 | #ifdef IBM6000 |
23 | ||
24 | /* Unfortunately, the above comment (about being compatible in all Unix | |
25 | systems) is not quite correct for AIX, sigh. And AIX 3.2 can generate | |
26 | status words like 0x57c (sigtrap received after load), and gdb would | |
27 | choke on it. */ | |
28 | ||
29 | #define WIFSTOPPED(w) ((w)&0x40) | |
30 | ||
31 | #else | |
bad3df67 | 32 | #define WIFSTOPPED(w) (((w)&0377) == 0177) |
93bd5493 | 33 | #endif |
29a766d2 | 34 | #endif |
bad3df67 | 35 | |
29a766d2 | 36 | #ifndef WEXITSTATUS |
d93e0582 | 37 | #define WEXITSTATUS(w) (((w) >> 8) & 0377) /* same as WRETCODE */ |
29a766d2 MM |
38 | #endif |
39 | ||
40 | #ifndef WTERMSIG | |
bad3df67 | 41 | #define WTERMSIG(w) ((w) & 0177) |
29a766d2 MM |
42 | #endif |
43 | ||
44 | #ifndef WSTOPSIG | |
d93e0582 | 45 | #define WSTOPSIG WEXITSTATUS |
29a766d2 | 46 | #endif |
bad3df67 JG |
47 | |
48 | /* These are not defined in POSIX, but are used by our programs. */ | |
49 | ||
50 | #define WAITTYPE int | |
51 | ||
29a766d2 | 52 | #ifndef WCOREDUMP |
bad3df67 | 53 | #define WCOREDUMP(w) (((w)&0200) != 0) |
29a766d2 MM |
54 | #endif |
55 | ||
56 | #ifndef WSETEXIT | |
bad3df67 | 57 | #define WSETEXIT(w,status) ((w) = (0 | ((status) << 8))) |
29a766d2 MM |
58 | #endif |
59 | ||
60 | #ifndef WSETSTOP | |
bad3df67 | 61 | #define WSETSTOP(w,sig) ((w) = (0177 | ((sig) << 8))) |
29a766d2 MM |
62 | #endif |
63 |