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2014-04-01 Richard Biener <rguenther@suse.de>

Browse source 
libiberty/
	* simple-object.c (simple_object_internal_write): Handle
	EINTR and short writes.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208972 138bc75d-0d04-0410-961f-82ee72b054a4
This commit is contained in:
rguenth 2014-04-01 07:45:48 +00:00 committed by Tom Tromey
parent 81ad11e32c
commit c3c3c691f2
2 changed files with 22 additions and 8 deletions
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5
libiberty/ChangeLog
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@ -1,3 +1,8 @@
2014-04-01 Richard Biener <rguenther@suse.de>
* simple-object.c (simple_object_internal_write): Handle
EINTR and short writes.
2014-03-28 Richard Biener <rguenther@suse.de>
* simple-object.c (simple_object_internal_read): Handle

25
libiberty/simple-object.c
View file

@ -107,8 +107,6 @@ simple_object_internal_write (int descriptor, off_t offset,
const unsigned char *buffer, size_t size,
const char **errmsg, int *err)
{
ssize_t wrote;
if (lseek (descriptor, offset, SEEK_SET) < 0)
{
*errmsg = "lseek";
@ -116,15 +114,26 @@ simple_object_internal_write (int descriptor, off_t offset,
return 0;
}
wrote = write (descriptor, buffer, size);
if (wrote < 0)
do
{
*errmsg = "write";
*err = errno;
return 0;
ssize_t wrote = write (descriptor, buffer, size);
if (wrote == 0)
break;
else if (wrote > 0)
{
buffer += wrote;
size -= wrote;
}
else if (errno != EINTR)
{
*errmsg = "write";
*err = errno;
return 0;
}
}
while (size > 0);
if ((size_t) wrote < size)
if (size > 0)
{
*errmsg = "short write";
*err = 0;