From a71433e7fd0263a1dbac7a9b88067e4830382486 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Thu, 5 Feb 2009 00:21:43 +0000 Subject: [PATCH] * sysdeps/unix/sysv/linux/sparc/bits/siginfo.h (struct sigevent): Add _tid slot to maintain consistency with kernel. --- ChangeLog | 5 +++++ libio/wfileops.c | 24 ++++++++++++++++++++++-- sysdeps/unix/sysv/linux/sparc/bits/siginfo.h | 4 ++++ 3 files changed, 31 insertions(+), 2 deletions(-) diff --git a/ChangeLog b/ChangeLog index 59fb6a1..54e96ab 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2008-11-17 Nathan Sidwell + + * sysdeps/unix/sysv/linux/sparc/bits/siginfo.h (struct sigevent): + Add _tid slot to maintain consistency with kernel. + 2009-02-04 Ulrich Drepper * libio/wfileops.c (_IO_wfile_underflow): Fix handling of diff --git a/libio/wfileops.c b/libio/wfileops.c index c5f0eaf..57ed786 100644 --- a/libio/wfileops.c +++ b/libio/wfileops.c @@ -297,14 +297,34 @@ _IO_wfile_underflow (fp) if (naccbuf == 0) { + if (fp->_IO_read_base < fp->_IO_read_ptr) + { + /* Partially used the buffer for some input data that + produces no output. */ + size_t avail = fp->_IO_read_end - fp->_IO_read_ptr; + memmove (fp->_IO_read_base, fp->_IO_read_ptr, avail); + fp->_IO_read_ptr = fp->_IO_read_base; + fp->_IO_read_end -= avail; + goto again; + } naccbuf = fp->_IO_read_end - fp->_IO_read_ptr; if (naccbuf >= sizeof (accbuf)) goto out_eilseq; memcpy (accbuf, fp->_IO_read_ptr, naccbuf); } - else if (naccbuf == sizeof (accbuf)) - goto out_eilseq; + else + { + size_t used = read_ptr_copy - accbuf; + if (used > 0) + { + memmove (accbuf, read_ptr_copy, naccbuf - used); + naccbuf -= used; + } + + if (naccbuf == sizeof (accbuf)) + goto out_eilseq; + } fp->_IO_read_ptr = fp->_IO_read_end = fp->_IO_read_base; diff --git a/sysdeps/unix/sysv/linux/sparc/bits/siginfo.h b/sysdeps/unix/sysv/linux/sparc/bits/siginfo.h index 7ff1971..c0f98f6 100644 --- a/sysdeps/unix/sysv/linux/sparc/bits/siginfo.h +++ b/sysdeps/unix/sysv/linux/sparc/bits/siginfo.h @@ -289,6 +289,10 @@ typedef struct sigevent { int _pad[__SIGEV_PAD_SIZE]; + /* When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the + thread to receive the signal. */ + __pid_t _tid; + struct { void (*_function) (sigval_t); /* Function to start. */ -- 2.7.4