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https://github.com/jart/cosmopolitan.git
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baf70af780
You would think this is an important bug fix, but unfortunately all UNIX implementations I've evaluated have a bug in read that causes signals to not be handled atomically. The only exception is the latest iteration of Cosmopolitan's read/write polyfill on Windows, which is somewhat ironic.
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
#ifndef COSMOPOLITAN_LIBC_CALLS_INTERNAL_H_
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#define COSMOPOLITAN_LIBC_CALLS_INTERNAL_H_
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#include "libc/atomic.h"
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#include "libc/calls/struct/sigset.h"
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#include "libc/calls/struct/sigval.h"
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#include "libc/dce.h"
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#include "libc/intrin/fds.h"
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#include "libc/macros.h"
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#include "libc/stdbool.h"
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#define kSigactionMinRva 8 /* >SIG_{ERR,DFL,IGN,...} */
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COSMOPOLITAN_C_START_
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#define kIoMotion ((const int8_t[3]){1, 0, 0})
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extern struct Fds g_fds;
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extern atomic_int __umask;
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extern const struct Fd kEmptyFd;
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int __reservefd(int);
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int __reservefd_unlocked(int);
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void __releasefd(int);
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int __ensurefds(int);
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uint32_t sys_getuid_nt(void);
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int __ensurefds_unlocked(int);
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void __printfds(struct Fd *, size_t);
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int __sigcheck(sigset_t, bool);
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int CountConsoleInputBytes(void);
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int FlushConsoleInputBytes(void);
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int64_t GetConsoleInputHandle(void);
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int64_t GetConsoleOutputHandle(void);
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int IsWindowsExecutable(int64_t, const char16_t *);
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void InterceptTerminalCommands(const char *, size_t);
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forceinline bool __isfdopen(int fd) {
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return 0 <= fd && fd < g_fds.n && g_fds.p[fd].kind != kFdEmpty;
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}
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forceinline bool __isfdkind(int fd, int kind) {
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return 0 <= fd && fd < g_fds.n && g_fds.p[fd].kind == kind;
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}
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int _check_signal(bool);
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int _check_cancel(void);
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bool _is_canceled(void);
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int sys_close_nt(int, int);
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int _park_norestart(uint32_t, uint64_t);
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int _park_restartable(uint32_t, uint64_t);
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int sys_openat_metal(int, const char *, int, unsigned);
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#ifdef __x86_64__
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bool __iswsl1(void);
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#else
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#define __iswsl1() false
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#endif
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COSMOPOLITAN_C_END_
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#endif /* COSMOPOLITAN_LIBC_CALLS_INTERNAL_H_ */
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