Patch 8.1.0960
Problem: When using ConPTY garbage collection has undefined behavior.
Solution: Free the channel in a better way. (Nobuhiro Takasaki, closes #4020)
Files: src/channel.c
*** ../vim-8.1.0959/src/channel.c 2019-02-17 17:44:36.199875566 +0100
--- src/channel.c 2019-02-20 22:44:26.019845642 +0100
***************
*** 191,197 ****
static int did_log_msg = TRUE;
! #ifndef PROTO /* prototype is in vim.h */
void
ch_log(channel_T *ch, const char *fmt, ...)
{
--- 191,197 ----
static int did_log_msg = TRUE;
! #ifndef PROTO // prototype is in proto.h
void
ch_log(channel_T *ch, const char *fmt, ...)
{
***************
*** 4348,4367 ****
{
channel->ch_to_be_closed = (1U << PART_COUNT);
channel_close_now(channel);
! /* channel may have been freed, start over */
channel = first_channel;
continue;
}
if (channel->ch_to_be_freed || channel->ch_killing)
{
channel_free(channel);
! /* channel has been freed, start over */
channel = first_channel;
continue;
}
if (channel->ch_refcount == 0 && !channel_still_useful(channel))
{
! /* channel is no longer useful, free it */
channel_free(channel);
channel = first_channel;
part = PART_SOCK;
--- 4348,4372 ----
{
channel->ch_to_be_closed = (1U << PART_COUNT);
channel_close_now(channel);
! // channel may have been freed, start over
channel = first_channel;
continue;
}
if (channel->ch_to_be_freed || channel->ch_killing)
{
+ if (channel->ch_killing)
+ {
+ channel_free_contents(channel);
+ channel->ch_job->jv_channel = NULL;
+ }
channel_free(channel);
! // channel has been freed, start over
channel = first_channel;
continue;
}
if (channel->ch_refcount == 0 && !channel_still_useful(channel))
{
! // channel is no longer useful, free it
channel_free(channel);
channel = first_channel;
part = PART_SOCK;
***************
*** 5487,5501 ****
channel_need_redraw = TRUE;
}
! if (job->jv_channel != NULL
! && job->jv_channel->ch_anonymous_pipe && !job->jv_channel->ch_killing)
! {
! ++safe_to_invoke_callback;
! channel_free_contents(job->jv_channel);
! job->jv_channel->ch_job = NULL;
! job->jv_channel = NULL;
! --safe_to_invoke_callback;
! }
// Do not free the job in case the close callback of the associated
channel
// isn't invoked yet and may get information by job_info().
--- 5492,5499 ----
channel_need_redraw = TRUE;
}
! if (job->jv_channel != NULL && job->jv_channel->ch_anonymous_pipe)
! job->jv_channel->ch_killing = TRUE;
// Do not free the job in case the close callback of the associated
channel
// isn't invoked yet and may get information by job_info().
*** ../vim-8.1.0959/src/version.c 2019-02-20 22:18:59.990044254 +0100
--- src/version.c 2019-02-20 22:43:03.024385639 +0100
***************
*** 781,782 ****
--- 781,784 ----
{ /* Add new patch number below this line */
+ /**/
+ 960,
/**/
--
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