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* io.c (internal_{read,write}_func, rb_{read,write}_internal):

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preserve errno.  a patch from Takehiro Kubo in [ruby-core:29340].
  [ruby-core:28924]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27265 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2010-04-08 16:27:42 +00:00
parent f6b46f0779
commit 92de2ed517
2 changed files with 23 additions and 4 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
Fri Apr 9 01:26:54 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* io.c (internal_{read,write}_func, rb_{read,write}_internal):
preserve errno. a patch from Takehiro Kubo in [ruby-core:29340].
[ruby-core:28924]
Fri Apr 9 01:12:07 2010 Yusuke Endoh <mame@tsg.ne.jp>
* lib/irb/completion.rb (CompletionProc): calling the method "methods"

21
io.c
View file

@ -530,6 +530,7 @@ wsplit_p(rb_io_t *fptr)
struct io_internal_struct {
int fd;
int saved_errno;
void *buf;
size_t capa;
};
@ -538,36 +539,48 @@ static VALUE
internal_read_func(void *ptr)
{
struct io_internal_struct *iis = (struct io_internal_struct*)ptr;
return read(iis->fd, iis->buf, iis->capa);
ssize_t ret = read(iis->fd, iis->buf, iis->capa);
iis->saved_errno = errno;
return (VALUE)ret;
}
static VALUE
internal_write_func(void *ptr)
{
struct io_internal_struct *iis = (struct io_internal_struct*)ptr;
return write(iis->fd, iis->buf, iis->capa);
ssize_t ret = write(iis->fd, iis->buf, iis->capa);
iis->saved_errno = errno;
return (VALUE)ret;
}
static ssize_t
rb_read_internal(int fd, void *buf, size_t count)
{
struct io_internal_struct iis;
ssize_t ret;
iis.fd = fd;
iis.buf = buf;
iis.capa = count;
return (ssize_t)rb_thread_blocking_region(internal_read_func, &iis, RUBY_UBF_IO, 0);
ret = (ssize_t)rb_thread_blocking_region(internal_read_func, &iis, RUBY_UBF_IO, 0);
errno = iis.saved_errno;
return ret;
}
static ssize_t
rb_write_internal(int fd, void *buf, size_t count)
{
struct io_internal_struct iis;
ssize_t ret;
iis.fd = fd;
iis.buf = buf;
iis.capa = count;
return (ssize_t)rb_thread_blocking_region(internal_write_func, &iis, RUBY_UBF_IO, 0);
ret = (ssize_t)rb_thread_blocking_region(internal_write_func, &iis, RUBY_UBF_IO, 0);
errno = iis.saved_errno;
return ret;
}
static long