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called from Kernel method. * eval.c (exec_under): frame during eval should preserve external information. * configure.in: use proper option for Sun linker. A patch from Shinya Kuwamura <kuwa@labs.fujitsu.com>. [ruby-dev:27603] * numeric.c (fix_rshift): RDoc fix. [ruby-core:6351] * util.h (strtod): add #undef for platforms defines strtod() macro. [ruby-dev:27563] * ext/etc/etc.c: document update from mathew <meta@pobox.com>. [ruby-core:06473] * ext/fcntl/fcntl.c: ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@9490 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
187 lines
4.7 KiB
C
187 lines
4.7 KiB
C
/************************************************
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fcntl.c -
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$Author$
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created at: Mon Apr 7 18:53:05 JST 1997
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Copyright (C) 1997-2001 Yukihiro Matsumoto
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************************************************/
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/************************************************
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= NAME
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fcntl - load the C fcntl.h defines
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= SYNOPSIS
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require "fcntl"
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m = s.fcntl(Fcntl::F_GETFL, 0)
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f.fcntl(Fcntl::F_SETFL, Fcntl::O_NONBLOCK|m)
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= DESCRIPTION
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This module is just a translation of the C <fnctl.h> file.
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= NOTE
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Only #define symbols get translated; you must still correctly
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pack up your own arguments to pass as args for locking functions, etc.
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************************************************/
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#include "ruby.h"
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#include <fcntl.h>
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/* Fcntl loads the constants defined in the system's <fcntl.h> C header
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* file, and used with both the fcntl(2) and open(2) POSIX system calls.
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*
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* Copyright (C) 1997-2001 Yukihiro Matsumoto
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*
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* Documented by mathew <meta@pobox.com>
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*
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* = Usage
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*
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* To perform a fcntl(2) operation, use IO::fcntl in the core classes.
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*
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* To perform an open(2) operation, use IO::sysopen.
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*
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* The set of operations and constants available depends upon specific OS
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* platform. Some values listed below may not be supported on your system.
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*
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* The constants supported by Ruby for use with IO::fcntl are:
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*
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* - F_DUPFD - duplicate a close-on-exec file handle to a non-close-on-exec
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* file handle.
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*
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* - F_GETFD - read the close-on-exec flag of a file handle.
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*
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* - F_SETFD - set the close-on-exec flag of a file handle.
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*
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* - FD_CLOEXEC - the value of the close-on-exec flag.
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*
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* - F_GETFL - get file descriptor flags.
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*
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* - F_SETFL - set file descriptor flags.
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*
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* - O_APPEND, O_NONBLOCK, etc (see below) - file descriptor flag
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* values for the above.
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*
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* - F_GETLK - determine whether a given region of a file is locked.
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*
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* - F_SETLK - acquire a lock on a region of a file.
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*
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* - F_SETLKW - acquire a lock on a region of a file, waiting if necessary.
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*
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* - F_RDLCK, F_WRLCK, F_UNLCK - types of lock for the above.
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*
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* The constants supported by Ruby for use with IO::sysopen are:
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*
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* - O_APPEND - open file in append mode.
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*
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* - O_NOCTTY - open tty without it becoming controlling tty.
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*
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* - O_CREAT - create file if it doesn't exist.
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*
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* - O_EXCL - used with O_CREAT, fail if file exists.
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*
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* - O_TRUNC - truncate file on open.
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*
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* - O_NONBLOCK / O_NDELAY - open in non-blocking mode.
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*
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* - O_RDONLY - open read-only.
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*
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* - O_WRONLY - open write-only.
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*
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* - O_RDWR - open read-write.
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*
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* - O_ACCMODE - mask to extract read/write flags.
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*
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* Example:
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*
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* require 'fcntl'
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*
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* fd = IO::sysopen('/tmp/tempfile',
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* Fcntl::O_WRONLY | Fcntl::O_EXCL | Fcntl::O_CREAT)
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* f = IO.open(fd)
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* f.syswrite("TEMP DATA")
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* f.close
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*
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*/
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void
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Init_fcntl()
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{
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VALUE mFcntl = rb_define_module("Fcntl");
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#ifdef F_DUPFD
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rb_define_const(mFcntl, "F_DUPFD", INT2NUM(F_DUPFD));
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#endif
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#ifdef F_GETFD
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rb_define_const(mFcntl, "F_GETFD", INT2NUM(F_GETFD));
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#endif
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#ifdef F_GETLK
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rb_define_const(mFcntl, "F_GETLK", INT2NUM(F_GETLK));
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#endif
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#ifdef F_SETFD
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rb_define_const(mFcntl, "F_SETFD", INT2NUM(F_SETFD));
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#endif
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#ifdef F_GETFL
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rb_define_const(mFcntl, "F_GETFL", INT2NUM(F_GETFL));
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#endif
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#ifdef F_SETFL
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rb_define_const(mFcntl, "F_SETFL", INT2NUM(F_SETFL));
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#endif
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#ifdef F_SETLK
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rb_define_const(mFcntl, "F_SETLK", INT2NUM(F_SETLK));
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#endif
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#ifdef F_SETLKW
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rb_define_const(mFcntl, "F_SETLKW", INT2NUM(F_SETLKW));
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#endif
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#ifdef FD_CLOEXEC
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rb_define_const(mFcntl, "FD_CLOEXEC", INT2NUM(FD_CLOEXEC));
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#endif
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#ifdef F_RDLCK
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rb_define_const(mFcntl, "F_RDLCK", INT2NUM(F_RDLCK));
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#endif
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#ifdef F_UNLCK
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rb_define_const(mFcntl, "F_UNLCK", INT2NUM(F_UNLCK));
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#endif
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#ifdef F_WRLCK
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rb_define_const(mFcntl, "F_WRLCK", INT2NUM(F_WRLCK));
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#endif
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#ifdef O_CREAT
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rb_define_const(mFcntl, "O_CREAT", INT2NUM(O_CREAT));
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#endif
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#ifdef O_EXCL
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rb_define_const(mFcntl, "O_EXCL", INT2NUM(O_EXCL));
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#endif
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#ifdef O_NOCTTY
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rb_define_const(mFcntl, "O_NOCTTY", INT2NUM(O_NOCTTY));
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#endif
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#ifdef O_TRUNC
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rb_define_const(mFcntl, "O_TRUNC", INT2NUM(O_TRUNC));
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#endif
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#ifdef O_APPEND
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rb_define_const(mFcntl, "O_APPEND", INT2NUM(O_APPEND));
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#endif
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#ifdef O_NONBLOCK
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rb_define_const(mFcntl, "O_NONBLOCK", INT2NUM(O_NONBLOCK));
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#endif
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#ifdef O_NDELAY
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rb_define_const(mFcntl, "O_NDELAY", INT2NUM(O_NDELAY));
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#endif
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#ifdef O_RDONLY
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rb_define_const(mFcntl, "O_RDONLY", INT2NUM(O_RDONLY));
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#endif
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#ifdef O_RDWR
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rb_define_const(mFcntl, "O_RDWR", INT2NUM(O_RDWR));
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#endif
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#ifdef O_WRONLY
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rb_define_const(mFcntl, "O_WRONLY", INT2NUM(O_WRONLY));
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#endif
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#ifdef O_ACCMODE
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rb_define_const(mFcntl, "O_ACCMODE", INT2FIX(O_ACCMODE));
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#else
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rb_define_const(mFcntl, "O_ACCMODE", INT2FIX(O_RDONLY | O_WRONLY | O_RDWR));
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#endif
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}
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