diff options
Diffstat (limited to 'sysdeps/generic')
| -rw-r--r-- | sysdeps/generic/confname.h | 36 | ||||
| -rw-r--r-- | sysdeps/generic/pselect.c | 55 | ||||
| -rw-r--r-- | sysdeps/generic/sbrk.c | 8 | ||||
| -rw-r--r-- | sysdeps/generic/sys/socket.h | 4 |
4 files changed, 99 insertions, 4 deletions
diff --git a/sysdeps/generic/confname.h b/sysdeps/generic/confname.h index 717229a3ab..3bc6b27652 100644 --- a/sysdeps/generic/confname.h +++ b/sysdeps/generic/confname.h @@ -41,8 +41,10 @@ enum #define _PC_SYNC_IO _PC_SYNC_IO _PC_ASYNC_IO, #define _PC_ASYNC_IO _PC_ASYNC_IO - _PC_PRIO_IO + _PC_PRIO_IO, #define _PC_PRIO_IO _PC_PRIO_IO + _PC_SOCK_MAXBUF +#define _PC_SOCK_MAXBUF _PC_SOCK_MAXBUF }; /* Values for the argument to `sysconf'. */ @@ -156,7 +158,37 @@ enum #define _SC_2_FORT_RUN _SC_2_FORT_RUN _SC_2_SW_DEV, #define _SC_2_SW_DEV _SC_2_SW_DEV - _SC_2_LOCALEDEF + _SC_2_LOCALEDEF, +#define _SC_2_LOCALEDEF _SC_2_LOCALEDEF + + _SC_PII, +#define _SC_PII _SC_PII + _SC_PII_XTI, +#define _SC_PII_XTI _SC_PII_XTI + _SC_PII_SOCKET, +#define _SC_PII_SOCKET _SC_PII_SOCKET + _SC_PII_INTERNET, +#define _SC_PII_INTERNET _SC_PII_INTERNET + _SC_PII_OSI, +#define _SC_PII_OSI _SC_PII_OSI + _SC_POLL, +#define _SC_POLL _SC_POLL + _SC_SELECT, +#define _SC_SELECT _SC_SELECT + _SC_UIO_MAXIOV, +#define _SC_UIO_MAXIOV _SC_UIO_MAXIOV + _SC_PII_INTERNET_STREAM, +#define _SC_PII_INTERNET_STREAM _SC_PII_INTERNET_STREAM + _SC_PII_INTERNET_DGRAM, +#define _SC_PII_INTERNET_DGRAM _SC_PII_INTERNET_DGRAM + _SC_PII_OSI_COTS, +#define _SC_PII_OSI_COTS _SC_PII_OSI_COTS + _SC_PII_OSI_CLTS, +#define _SC_PII_OSI_CLTS _SC_PII_OSI_CLTS + _SC_PII_OSI_M, +#define _SC_PII_OSI_M _SC_PII_OSI_M + _SC_T_IOV_MAX +#define _SC_T_IOV_MAX _SC_T_IOV_MAX }; #ifdef __USE_POSIX2 diff --git a/sysdeps/generic/pselect.c b/sysdeps/generic/pselect.c new file mode 100644 index 0000000000..165fd32148 --- /dev/null +++ b/sysdeps/generic/pselect.c @@ -0,0 +1,55 @@ +/* Copyright (C) 1996 Free Software Foundation, Inc. +This file is part of the GNU C Library. +Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#include <errno.h> +#include <sys/select.h> + +/* Check the first NFDS descriptors each in READFDS (if not NULL) for read + readiness, in WRITEFDS (if not NULL) for write readiness, and in EXCEPTFDS + (if not NULL) for exceptional conditions. If TIMEOUT is not NULL, time out + after waiting the interval specified therein. Returns the number of ready + descriptors, or -1 for errors. */ +int +__pselect (nfds, readfds, writefds, exceptfds, timeout) + int nfds; + fd_set *readfds; + fd_set *writefds; + fd_set *exceptfds; + struct timespec *timeout; +{ + struct timeval tval; + int retval; + + /* Change nanosecond number to microseconds. This may loose + precision and therefore the `pselect` should be available. But + for now it is hardly found. */ + if (timeout != NULL) + TIMESPEC_TO_TIMEVAL (&tval, timeout); + + retval = __select (nfds, readfds, writefds, exceptfds, + timeout != NULL ? &tval : NULL); + + /* Change the result back. The remaining time must be made + available to the caller. */ + if (timeout != NULL) + TIMEVAL_TO_TIMESPEC (&tval, timeout); + + return retval; +} +weak_alias (__pselect, pselect) diff --git a/sysdeps/generic/sbrk.c b/sysdeps/generic/sbrk.c index de7794697d..698f814e2b 100644 --- a/sysdeps/generic/sbrk.c +++ b/sysdeps/generic/sbrk.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 1995 Free Software Foundation, Inc. +/* Copyright (C) 1991, 1995, 1996 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify @@ -30,7 +30,11 @@ __sbrk (ptrdiff_t increment) { void *oldbrk; - if (__curbrk == 0 && __brk (0) < 0) + /* Always update __curbrk from the kernel's brk value. That way two + separate instances of __brk and __sbrk can share the heap, returning + interleaved pieces of it. This happens when libc.so is loaded by + dlopen in a statically-linked program that already uses __brk. */ + if (__brk (0) < 0) return (void *) -1; if (increment == 0) diff --git a/sysdeps/generic/sys/socket.h b/sysdeps/generic/sys/socket.h index 759ff3b9b2..6ee3ebe52e 100644 --- a/sysdeps/generic/sys/socket.h +++ b/sysdeps/generic/sys/socket.h @@ -321,6 +321,10 @@ extern int accept __P ((int __fd, __SOCKADDR_ARG __addr, extern int shutdown __P ((int __fd, int __how)); +/* Determine whether FILDES if the property identified by the value if + FDTYPE. */ +extern int isfdtype __P ((int __fildes, int __fdtype)); + __END_DECLS #endif /* sys/socket.h */ |