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60cb435cb4
If threads are being used, then fork() will now acquire and release and runtime locks so that fork() may be safely used from threads. This also makes vfork() thread safe, because pthread mutexes will do nothing when the process is a child of vfork(). More torture tests have been written to confirm this all works like a charm. Additionally: - Invent hexpcpy() api - Rename nsync_malloc_() to kmalloc() - Complete posix named semaphore implementation - Make pthread_create() asynchronous signal safe - Add rm, rmdir, and touch to command interpreter builtins - Invent sigisprecious() and modify sigset functions to use it - Add unit tests for posix_spawn() attributes and fix its bugs One unresolved problem is the reclaiming of *NSYNC waiter memory in the forked child processes, within apps which have threads waiting on locks
27 lines
1.1 KiB
C
27 lines
1.1 KiB
C
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGSET_H_
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#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGSET_H_
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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typedef struct sigset {
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uint64_t __bits[2];
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} sigset_t;
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int sigaddset(sigset_t *, int) paramsnonnull();
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int sigdelset(sigset_t *, int) paramsnonnull();
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int sigemptyset(sigset_t *) paramsnonnull();
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int sigfillset(sigset_t *) paramsnonnull();
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int sigandset(sigset_t *, const sigset_t *, const sigset_t *) paramsnonnull();
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int sigorset(sigset_t *, const sigset_t *, const sigset_t *) paramsnonnull();
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int sigisemptyset(const sigset_t *) paramsnonnull() nosideeffect;
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int sigismember(const sigset_t *, int) paramsnonnull() nosideeffect;
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int sigcountset(const sigset_t *) paramsnonnull() nosideeffect;
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int sigisprecious(int) nosideeffect;
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int sigprocmask(int, const sigset_t *, sigset_t *);
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int sigsuspend(const sigset_t *);
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int sigpending(sigset_t *);
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int pthread_sigmask(int, const sigset_t *, sigset_t *);
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGSET_H_ */
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