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author | Ulrich Drepper <drepper@redhat.com> | 1997-03-21 20:00:48 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-03-21 20:00:48 +0000 |
commit | 5ae9d168f66cc6b40f74cfb4a8f2631fc1df6a2a (patch) | |
tree | 5157016d80fd69eef4b7f2c74f83c37eebba50d1 /sysdeps/unix/sysv/linux/writev.c | |
parent | f752bfe37962db44ac8db553d840f8215966911e (diff) | |
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Update.
1997-03-21 20:55 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/machine-gmon.h: Update copyright.
* sysdeps/i386/Makefile [$(subdir)=gmon] (sysdep_routines): Add
i386-mcount.
* sysdeps/i386/dl-machine.h [PROF] (_dl_runtime_resolve): Don't
use regparam mechanism for call of `fixup' call.
* sysdeps/i386/Dist: New file.
* sysdeps/i386/i386-mcount.S: New file. `mcount' entry point.
* sysdeps/i386/machine-gmon.h: New file. i386 specific version
of gmon definitions.
1997-03-20 13:39 Andreas Jaeger <aj@arthur.pfalz.de>
* stdlib/tst-strtol.c (main): Save the value of errno since printf
may modify it, use the saved errno everywhere.
* stdlib/tst-strtod.c (main): Likewise.
1997-03-21 05:54 Ulrich Drepper <drepper@cygnus.com>
* posix/glob.c (glob): Fix completely broken handling of
GLOB_BRACE and partly broken handling of GLOB_TILDE.
Reported by Dennis Henriksen <opus@flamingo.osrl.dk>.
1997-03-20 20:22 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/readv.c: Don't emulate readv with small
UIO_FASTIOV value by multiple readv calls since we need atomicity.
* sysdeps/unix/sysv/linux/writev.c: Likewise.
Reported by Matthis Urlichs.
1997-03-20 04:34 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/unix/sysv/linux/i386/sysdep.S (CALL_MCOUNT): Clear this
macro so ENTRY(__syscall_error) doesn't insert a call to _mcount,
which clobbers %eax.
* Makeconfig [$(elf)=yes] (+prector, +postctor): New variables for
crtbegin.o/crtend.o, using gcc to find them.
(+link): Use them.
1997-03-20 00:06 Richard Henderson <rth@tamu.edu>
* gmon/sys/gmon.h: Revert the bulk of the 960930 changes, as they
affect the alignment, and therefore the end padding of the structs.
Reported by David Mosberger <davidm@azstarnet.com>.
* gmon.c: Declare the variables with aligned tags to compensate.
Use __writev instead of write for the I/O.
* misc/sys/uio.h: Declare __writev and __readv.
* sysdeps/posix/readv.c: Rename and alias readv to __readv.
* sysdeps/posix/writev.c: Likewise for writev.
* sysdeps/stub/readv.c: Likewise.
* sysdeps/stub/writev.c: Likewise.
* sysdeps/unix/syscalls.list: Likewise.
* sysdeps/unix/sysv/linux/readv.c: Likewise.
* sysdeps/unix/sysv/linux/writev.c: Likewise.
* stdlib/testdiv.c: Exit with error status when we have an error.
* sysdeps/alpha/div.S: Initialize `quotient' and `mask'.
* sysdeps/alpha/ldiv.S: Likewise.
* sysdeps/unix/sysv/linux/alpha/ioperm.c: Include ctype.h for isdigit.
1997-03-20 14:51 Ulrich Drepper <drepper@cygnus.com>
* nis/nis_file.c: Unify error handling.
1997-03-19 18:36 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* nis/nis_file.c (writeColdStartFile): Fix typo.
* nis/nis_free.c (nis_free_endpoints): Use unsigned int.
* nis/nis_free.c (nis_free_servers): Likewise.
* nis/rpcsvc/nislib.h: Likewise.
* sunrpc/rpc/netdb.h: Add setrpcent and endrpcent prototypes.
Diffstat (limited to 'sysdeps/unix/sysv/linux/writev.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/writev.c | 31 |
1 files changed, 13 insertions, 18 deletions
diff --git a/sysdeps/unix/sysv/linux/writev.c b/sysdeps/unix/sysv/linux/writev.c index d147186..31e794f 100644 --- a/sysdeps/unix/sysv/linux/writev.c +++ b/sysdeps/unix/sysv/linux/writev.c @@ -23,6 +23,9 @@ #include <sys/uio.h> extern ssize_t __syscall_writev __P ((int, const struct iovec *, int)); +static ssize_t __atomic_writev_replacement __P ((int, const struct iovec *, + int)); + /* Not all versions of the kernel support the large number of records. */ #ifndef UIO_FASTIOV @@ -33,7 +36,7 @@ extern ssize_t __syscall_writev __P ((int, const struct iovec *, int)); /* We should deal with kernel which have a smaller UIO_FASTIOV as well as a very big count. */ ssize_t -writev (fd, vector, count) +__writev (fd, vector, count) int fd; const struct iovec *vector; int count; @@ -43,23 +46,15 @@ writev (fd, vector, count) bytes_written = __syscall_writev (fd, vector, count); - if (bytes_written < 0 && errno == EINVAL && count > UIO_FASTIOV) - { - int i; - - /* Restore the old error value as if nothing happened. */ - __set_errno (errno_saved); + if (bytes_written >= 0 || errno != EINVAL || count <= UIO_FASTIOV) + return bytes_written; - bytes_written = 0; - for (i = 0; i < count; i += UIO_FASTIOV) - { - ssize_t bytes = __syscall_writev (fd, vector + i, - MIN (count - i, UIO_FASTIOV)); + /* Restore the old error value as if nothing happened. */ + __set_errno (errno_saved); - if (bytes < 0) - return bytes_written > 0 ? bytes_written : bytes; - } - } - - return bytes_written; + return __atomic_writev_replacement (fd, vector, count); } +weak_alias (__writev, writev) + +#define __writev static __atomic_writev_replacement +#include <sysdeps/posix/writev.c> |