ca713cfab3
to force signal to be handled. Zero event here to prevent races. * signal.cc (sigwaitinfo): Use local handle value for everything since signal thread could zero event element at any time. Detect when awaking due to thread not in mask and set return value and errno accordingly. Don't set signal number to zero unless we've recognized the signal. * sigproc.cc (sigq): Rename from sigqueue throughout. * thread.cc (pthread::join): Handle signals received while waiting for thread to terminate. * cygwin.din: Export sighold, sigqueue. * exceptions.cc (sighold): Define new function. * signal.cc (handle_sigprocmask): Set correct errno for invalid signal. Simplify debugging output. (sigqueue): Define new function. * include/cygwin/signal.h (sighold): Declare new function. (sigqueue): Ditto. * include/cygwin/version.h: Bump API minor version number. * include/limits.h (TIMER_MAX): Define. (_POSIX_TIMER_MAX): Ditto.
178 lines
4.7 KiB
C
178 lines
4.7 KiB
C
/* limits.h
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Copyright 1999, 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _LIMITS_H___
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#ifndef _MACH_MACHLIMITS_H_
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/* _MACH_MACHLIMITS_H_ is used on OSF/1. */
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#define _LIMITS_H___
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#define _MACH_MACHLIMITS_H_
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/* Number of bits in a `char'. */
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#undef CHAR_BIT
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#define CHAR_BIT 8
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/* Maximum length of a multibyte character. */
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#ifndef MB_LEN_MAX
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#define MB_LEN_MAX 1
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#endif
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/* Minimum and maximum values a `signed char' can hold. */
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#undef SCHAR_MIN
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#define SCHAR_MIN (-128)
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#undef SCHAR_MAX
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#define SCHAR_MAX 127
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/* Maximum value an `unsigned char' can hold. (Minimum is 0). */
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#undef UCHAR_MAX
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#define UCHAR_MAX 255
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/* Minimum and maximum values a `char' can hold. */
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#ifdef __CHAR_UNSIGNED__
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#undef CHAR_MIN
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#define CHAR_MIN 0
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#undef CHAR_MAX
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#define CHAR_MAX 255
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#else
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#undef CHAR_MIN
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#define CHAR_MIN (-128)
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#undef CHAR_MAX
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#define CHAR_MAX 127
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#endif
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/* Minimum and maximum values a `signed short int' can hold. */
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#undef SHRT_MIN
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#define SHRT_MIN (-32768)
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#undef SHRT_MAX
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#define SHRT_MAX 32767
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/* Maximum value an `unsigned short int' can hold. (Minimum is 0). */
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#undef USHRT_MAX
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#define USHRT_MAX 65535
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/* Minimum and maximum values a `signed int' can hold. */
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#ifndef __INT_MAX__
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#define __INT_MAX__ 2147483647
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#endif
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#undef INT_MIN
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#define INT_MIN (-INT_MAX-1)
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#undef INT_MAX
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#define INT_MAX __INT_MAX__
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/* Maximum value an `unsigned int' can hold. (Minimum is 0). */
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#undef UINT_MAX
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#define UINT_MAX (INT_MAX * 2U + 1)
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/* Minimum and maximum values a `signed long int' can hold.
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(Same as `int'). */
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#ifndef __LONG_MAX__
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#ifndef __alpha__
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#define __LONG_MAX__ 2147483647L
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#else
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#define __LONG_MAX__ 9223372036854775807L
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# endif /* __alpha__ */
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#endif
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#undef LONG_MIN
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#define LONG_MIN (-LONG_MAX-1)
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#undef LONG_MAX
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#define LONG_MAX __LONG_MAX__
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/* Maximum value an `unsigned long int' can hold. (Minimum is 0). */
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#undef ULONG_MAX
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#define ULONG_MAX (LONG_MAX * 2UL + 1)
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/* Minimum and maximum values a `signed long long int' can hold. */
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#ifndef __LONG_LONG_MAX__
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#define __LONG_LONG_MAX__ 9223372036854775807LL
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#endif
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#if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__)
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#undef LONG_LONG_MIN
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#define LONG_LONG_MIN (-LONG_LONG_MAX-1)
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#undef LONG_LONG_MAX
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#define LONG_LONG_MAX __LONG_LONG_MAX__
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/* Maximum value an `unsigned long long int' can hold. (Minimum is 0). */
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#undef ULONG_LONG_MAX
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#define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1)
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#endif
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#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
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/* Minimum and maximum values a `signed long long int' can hold. */
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#undef LLONG_MIN
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#define LLONG_MIN (-LLONG_MAX-1)
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#undef LLONG_MAX
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#define LLONG_MAX __LONG_LONG_MAX__
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/* Maximum value an `unsigned long long int' can hold. (Minimum is 0). */
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#undef ULLONG_MAX
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#define ULLONG_MAX (LLONG_MAX * 2ULL + 1)
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#endif
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/* Maximum number of iovcnt in a writev (an arbitrary number) */
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#undef IOV_MAX
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#define IOV_MAX 1024
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/* Maximum size of ssize_t */
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#undef SSIZE_MAX
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#define SSIZE_MAX (__LONG_MAX__)
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/* Maximum length of a path */
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#define PATH_MAX (260 - 1 /*NUL*/)
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/* Max num groups for a user, value taken from NT documentation */
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/* Must match <sys/param.h> NGROUPS */
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#define NGROUPS_MAX 16
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/* WaitForMultipleObjects can't handle waiting for more than 64 objects.
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This limits how many children we can fork/spawn off. */
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#define CHILD_MAX 63
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/* # of open files per process. Actually it can be more since Cygwin
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grows the dtable as necessary. We define a reasonable limit here
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which is returned by getdtablesize(), sysconf(_SC_OPEN_MAX) and
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getrlimit(RLIMIT_NOFILE). */
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#undef OPEN_MAX
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#define OPEN_MAX 256
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/* # of bytes in a pipe buf. This is the max # of bytes which can be
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written to a pipe in one atomic operation. */
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#undef PIPE_BUF
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#define PIPE_BUF 4096
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/* Maximum number of timer expiration overruns. */
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#undef TIMER_MAX
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#define TIMER_MAX 32
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/* POSIX values */
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/* These should never vary from one system type to another */
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/* They represent the minimum values that POSIX systems must support.
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POSIX-conforming apps must not require larger values. */
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#define _POSIX_ARG_MAX 4096
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#define _POSIX_CHILD_MAX 6
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#define _POSIX_LINK_MAX 8
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#define _POSIX_MAX_CANON 255
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#define _POSIX_MAX_INPUT 255
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#define _POSIX_NAME_MAX 14
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#define _POSIX_NGROUPS_MAX 0
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#define _POSIX_OPEN_MAX 16
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#define _POSIX_PATH_MAX 255
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#define _POSIX_PIPE_BUF 512
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#define _POSIX_SSIZE_MAX 32767
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#define _POSIX_STREAM_MAX 8
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#define _POSIX_TZNAME_MAX 3
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#define _POSIX_RTSIG_MAX 8
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#define _POSIX_TIMER_MAX 32
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#define RTSIG_MAX _POSIX_RTSIG_MAX
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#endif /* _MACH_MACHLIMITS_H_ */
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#endif /* _LIMITS_H___ */
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