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io.c: common function to free IO buffers

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This also allows easier tracking of freed memory for systems
without malloc_usable_size, and also makes future changes
to freeing buffer memory easier-to-implement.

* io.c (free_io_buffer): new function for a common pattern
  (clear_readconv): use free_io_buffer
  (rb_io_fptr_finalize): ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47712 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
normal 2014-09-25 10:40:37 +00:00
parent 39bb54d89c
commit 405c4abb9f
2 changed files with 18 additions and 12 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
Thu Sep 25 19:37:34 2014 Eric Wong <e@80x24.org>
* io.c (free_io_buffer): new function for a common pattern
(clear_readconv): use free_io_buffer
(rb_io_fptr_finalize): ditto
Thu Sep 25 07:51:07 2014 Ayumu AIZAWA <ayumu.aizawa@gmail.com>
* lib/matrix.rb: Fix docs. Patched by Ben Woodall. [GH-726]

24
io.c
View file

@ -4325,6 +4325,15 @@ rb_io_fptr_cleanup(rb_io_t *fptr, int noraise)
}
}
static void
free_io_buffer(rb_io_buffer_t *buf)
{
if (buf->ptr) {
ruby_sized_xfree(buf->ptr, (size_t)buf->capa);
buf->ptr = NULL;
}
}
static void
clear_readconv(rb_io_t *fptr)
{
@ -4332,10 +4341,7 @@ clear_readconv(rb_io_t *fptr)
rb_econv_close(fptr->readconv);
fptr->readconv = NULL;
}
if (fptr->cbuf.ptr) {
free(fptr->cbuf.ptr);
fptr->cbuf.ptr = NULL;
}
free_io_buffer(&fptr->cbuf);
}
static void
@ -4363,14 +4369,8 @@ rb_io_fptr_finalize(rb_io_t *fptr)
if (0 <= fptr->fd)
rb_io_fptr_cleanup(fptr, TRUE);
fptr->write_lock = 0;
if (fptr->rbuf.ptr) {
free(fptr->rbuf.ptr);
fptr->rbuf.ptr = 0;
}
if (fptr->wbuf.ptr) {
free(fptr->wbuf.ptr);
fptr->wbuf.ptr = 0;
}
free_io_buffer(&fptr->rbuf);
free_io_buffer(&fptr->wbuf);
clear_codeconv(fptr);
free(fptr);
return 1;