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Introduce sigtimedwait() and sigwaitinfo()

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This change also invents sigcountset() and strsignal_r() and improves
the quality of siginfo_t handling.
This commit is contained in:
Justine Tunney 2022-10-10 07:36:07 -07:00
parent 7ae556463a
commit 467a332e38
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GPG key ID: BE714B4575D6E328
41 changed files with 887 additions and 345 deletions
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23
libc/calls/struct/siginfo-meta.internal.h Normal file
View file

@ -0,0 +1,23 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGINFO_META_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGINFO_META_INTERNAL_H_
#include "libc/calls/struct/siginfo-freebsd.internal.h"
#include "libc/calls/struct/siginfo-netbsd.internal.h"
#include "libc/calls/struct/siginfo-openbsd.internal.h"
#include "libc/calls/struct/siginfo-xnu.internal.h"
#include "libc/calls/struct/siginfo.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
union siginfo_meta {
struct siginfo linux;
struct siginfo_xnu xnu;
struct siginfo_freebsd freebsd;
struct siginfo_openbsd openbsd;
struct siginfo_netbsd netbsd;
};
void __siginfo2cosmo(struct siginfo *, const union siginfo_meta *) hidden;
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGINFO_META_INTERNAL_H_ */

4
libc/calls/struct/siginfo.h
View file

@ -12,11 +12,13 @@ struct siginfo {
struct {
union {
struct {
/* signals sent by kill() and sigqueue() set these */
int32_t si_pid;
uint32_t si_uid;
};
struct {
int32_t si_timerid; /* SIGALRM */
/* SIGALRM sets these */
int32_t si_timerid;
int32_t si_overrun;
};
};

4
libc/calls/struct/siginfo.internal.h
View file

@ -3,6 +3,7 @@
#include "libc/calls/struct/sigaction-xnu.internal.h"
#include "libc/calls/struct/siginfo-xnu.internal.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/mem/alloca.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
@ -10,6 +11,9 @@ int sys_sigqueueinfo(int, const siginfo_t *) hidden;
void __sigenter_xnu(void *, int, int, struct siginfo_xnu *,
struct __darwin_ucontext *) hidden;
const char *DescribeSiginfo(char[300], int, const siginfo_t *);
#define DescribeSiginfo(x, y) DescribeSiginfo(alloca(300), x, y)
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGINFO_INTERNAL_H_ */

5
libc/calls/struct/sigset.h
View file

@ -13,11 +13,12 @@ int sigemptyset(sigset_t *) paramsnonnull();
int sigfillset(sigset_t *) paramsnonnull();
int sigandset(sigset_t *, const sigset_t *, const sigset_t *) paramsnonnull();
int sigorset(sigset_t *, const sigset_t *, const sigset_t *) paramsnonnull();
int sigisemptyset(const sigset_t *) paramsnonnull();
int sigisemptyset(const sigset_t *) paramsnonnull() nosideeffect;
int sigismember(const sigset_t *, int) paramsnonnull() nosideeffect;
int sigcountset(const sigset_t *) paramsnonnull() nosideeffect;
int sigprocmask(int, const sigset_t *, sigset_t *);
int sigsuspend(const sigset_t *);
int sigpending(sigset_t *) paramsnonnull() nosideeffect;
int sigpending(sigset_t *);
int pthread_sigmask(int, const sigset_t *, sigset_t *);
COSMOPOLITAN_C_END_