diff options
Diffstat (limited to 'sysdeps/generic')
| -rw-r--r-- | sysdeps/generic/fpu_control.h | 9 | ||||
| -rw-r--r-- | sysdeps/generic/pselect.c | 24 |
2 files changed, 15 insertions, 18 deletions
diff --git a/sysdeps/generic/fpu_control.h b/sysdeps/generic/fpu_control.h index 4d3d978426..8d50901300 100644 --- a/sysdeps/generic/fpu_control.h +++ b/sysdeps/generic/fpu_control.h @@ -1,5 +1,5 @@ /* FPU control word definitions. Stub version. - Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 1998 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 @@ -36,11 +36,4 @@ typedef unsigned int fpu_control_t; /* Default control word set at startup. */ extern fpu_control_t __fpu_control; -__BEGIN_DECLS - -/* Called at startup. It can be used to manipulate fpu control register. */ -extern void __setfpucw __P ((fpu_control_t)); - -__END_DECLS - #endif /* _FPU_CONTROL_H */ diff --git a/sysdeps/generic/pselect.c b/sysdeps/generic/pselect.c index 3a93f997f5..dab4d754f2 100644 --- a/sysdeps/generic/pselect.c +++ b/sysdeps/generic/pselect.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1996, 1997 Free Software Foundation, Inc. +/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. @@ -18,24 +18,28 @@ Boston, MA 02111-1307, USA. */ #include <errno.h> +#include <signal.h> #include <sys/time.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. */ + after waiting the interval specified therein. Additionally set the sigmask + SIGMASK for this call. Returns the number of ready descriptors, or -1 for + errors. */ int -__pselect (nfds, readfds, writefds, exceptfds, timeout) +__pselect (nfds, readfds, writefds, exceptfds, timeout, sigmask) int nfds; fd_set *readfds; fd_set *writefds; fd_set *exceptfds; - struct timespec *timeout; + const struct timespec *timeout; + const sigset_t *sigmask; { struct timeval tval; int retval; + sigset_t savemask; /* Change nanosecond number to microseconds. This may loose precision and therefore the `pselect` should be available. But @@ -43,13 +47,13 @@ __pselect (nfds, readfds, writefds, exceptfds, timeout) if (timeout != NULL) TIMESPEC_TO_TIMEVAL (&tval, timeout); + /* The setting and restoring of the signal mask and the select call + should be an atomic operation. This can't be done without kernel + help. */ + __sigprocmask (SIG_SETMASK, sigmask, &savemask); 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); + __sigprocmask (SIG_SETMASK, &savemask, NULL); return retval; } |