mirror of
https://github.com/jart/cosmopolitan.git
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4a59210008
This change improves the way internal APIs are being hidden behind the `COSMO` define. The cosmo.h header will take care of defining that, so that a separate define statement isn't needed. This change also does a lot more to define which APIs are standard, and which belong to Cosmo.
85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_H_
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#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_H_
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#include "libc/calls/struct/siginfo.h"
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#include "libc/calls/struct/sigset.h"
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#include "libc/calls/ucontext.h"
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#include "libc/dce.h"
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#include "libc/sysv/consts/sig.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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typedef void (*sighandler_t)(int);
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typedef void (*sigaction_f)(int, struct siginfo *,
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void * /*struct ucontext **/);
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struct sigaction { /* cosmo abi */
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union {
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sighandler_t sa_handler;
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sigaction_f sa_sigaction;
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};
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uint64_t sa_flags;
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void (*sa_restorer)(void);
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struct sigset sa_mask;
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};
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sighandler_t signal(int, sighandler_t);
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int sigaction(int, const struct sigaction *, struct sigaction *);
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#if defined(__GNUC__) && !defined(__STRICT_ANSI__) && defined(COSMO)
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void _init_onntconsoleevent(void);
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void _init_wincrash(void);
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void _check_sigwinch();
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#ifndef __SIGACTION_YOINK
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#define __SIGACTION_YOINK(SIG) \
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do { \
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if (SupportsWindows()) { \
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if (__builtin_constant_p(SIG)) { \
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switch (SIG) { \
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case SIGINT: \
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case SIGQUIT: \
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case SIGHUP: \
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case SIGTERM: \
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YOINK(_init_onntconsoleevent); \
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break; \
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case SIGTRAP: \
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case SIGILL: \
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case SIGSEGV: \
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case SIGABRT: \
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case SIGFPE: \
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YOINK(_init_wincrash); \
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break; \
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case SIGWINCH: \
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YOINK(_check_sigwinch); \
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break; \
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default: \
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break; \
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} \
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} else { \
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YOINK(_init_onntconsoleevent); \
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YOINK(_init_wincrash); \
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YOINK(_check_sigwinch); \
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} \
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} \
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} while (0)
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#endif
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#define sigaction(SIG, ACT, OLD) \
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({ \
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__SIGACTION_YOINK(SIG); \
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sigaction(SIG, (ACT), OLD); \
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})
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#define signal(SIG, HAND) \
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({ \
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__SIGACTION_YOINK(SIG); \
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signal(SIG, HAND); \
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})
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#endif /* GNU && !ANSI */
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_H_ */
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