| 1 | /* C K U S I G . H */ |
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| 2 | |
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| 3 | /* Definitions and prototypes for signal handling */ |
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| 4 | |
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| 5 | /* |
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| 6 | Author: Jeffrey Altman (jaltman@columbia.edu), |
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| 7 | Columbia University Academic Information Systems, New York City. |
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| 8 | |
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| 9 | Copyright (C) 1985, 2002, |
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| 10 | Trustees of Columbia University in the City of New York. |
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| 11 | All rights reserved. See the C-Kermit COPYING.TXT file or the |
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| 12 | copyright text in the ckcmai.c module for disclaimer and permissions. |
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| 13 | */ |
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| 14 | |
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| 15 | #ifdef CK_ANSIC |
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| 16 | typedef void (*ck_sigfunc)(void *); |
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| 17 | typedef void (*ck_sighand)(int); |
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| 18 | #else |
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| 19 | typedef VOID (*ck_sigfunc)(); |
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| 20 | typedef VOID (*ck_sighand)(); |
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| 21 | #endif /* CK_ANSIC */ |
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| 22 | |
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| 23 | /* Macros for POSIX vs old-style signal handling. */ |
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| 24 | |
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| 25 | #ifdef CK_POSIX_SIG |
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| 26 | typedef sigjmp_buf ckjmpbuf; |
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| 27 | #else |
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| 28 | typedef jmp_buf ckjmpbuf; |
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| 29 | #endif /* CK_POSIX_SIG */ |
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| 30 | /* |
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| 31 | Suppose you want to pass the address of a jmp_buf bar to a function foo. |
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| 32 | Since jmp_buf is normally defined (typedef'd) as an array, you would do |
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| 33 | it like this: foo(bar), where foo = foo(jmp_buf bar). But suppose a |
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| 34 | jmp_buf is (say) a struct rather than an array. Then you must do |
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| 35 | foo(&bar) where foo is foo(jmp_buf * bar). This is controlled here in |
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| 36 | the traditional fashion, by ifdefs. By default, we assume that jmp_buf |
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| 37 | is an array. Define the symbol JBNOTARRAY if jmp_buf is not an array. |
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| 38 | */ |
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| 39 | #ifndef JBNOTARRAY |
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| 40 | #ifdef NT |
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| 41 | #define JBNOTARRAY |
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| 42 | #endif /* NT */ |
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| 43 | #endif /* JBNOTARRAY */ |
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| 44 | |
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| 45 | #ifdef JBNOTARRAY |
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| 46 | typedef ckjmpbuf * ckjptr; |
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| 47 | #define ckjaddr(x) & x |
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| 48 | #define ckjdref(x) * x |
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| 49 | #ifdef CK_POSIX_SIG |
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| 50 | #define cksetjmp(x) sigsetjmp(x,1) |
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| 51 | #else |
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| 52 | #define cksetjmp(x) setjmp(x,1) |
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| 53 | #endif /* CK_POSIX_SIG */ |
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| 54 | #else /* jmp_buf is an array */ |
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| 55 | typedef ckjmpbuf ckjptr; |
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| 56 | #define ckjaddr(x) x |
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| 57 | #define ckjdref(x) x |
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| 58 | #ifdef CK_POSIX_SIG |
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| 59 | #define cksetjmp sigsetjmp |
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| 60 | #else |
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| 61 | #define cksetjmp setjmp |
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| 62 | #endif /* CK_POSIX_SIG */ |
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| 63 | #endif /* JBNOTARRAY */ |
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| 64 | |
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| 65 | _PROTOTYP( int cc_execute, (ckjptr, ck_sigfunc, ck_sigfunc) ); |
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| 66 | _PROTOTYP( int alrm_execute, |
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| 67 | (ckjptr, |
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| 68 | int timo, |
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| 69 | ck_sighand handler, |
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| 70 | ck_sigfunc, ck_sigfunc) ); |
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| 71 | _PROTOTYP( int cc_alrm_execute, |
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| 72 | (ckjptr, |
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| 73 | int timo, |
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| 74 | ck_sighand handler, |
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| 75 | ck_sigfunc, |
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| 76 | ck_sigfunc) ); |
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| 77 | |
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| 78 | /* End of ckusig.h */ |
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| 79 | |
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