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Mention that the recent fix to the gspawn helper process

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synchronization on Windows fixes #510664.
  

svn path=/trunk/; revision=6577
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Tor Lillqvist 2008-02-24 22:53:52 +00:00
parent 96c7abe76a
commit 81419b53de
1 changed files with 9 additions and 7 deletions
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@ -7,13 +7,15 @@
* glib/gspawn-win32.c
* glib/gspawn-win32-helper.c: Fix race condition when using the
helper process: When the helper process writes the handle of the
actual started user process to the parent process, it must be
duplicated in the parent process with DuplicateHandle() so that it
is a valid handle in that process. However, if the helper process
has happened to exit before the DuplicateHandle() call, the
duplication will fail. Thus we must synchronise the helper
process's exit. Use another pipe for this.
helper process. This seems to fix #510664.
When the helper process writes the handle of the actual started
user process to the parent process, it must be duplicated in the
parent process with DuplicateHandle() so that it is a valid handle
in that process. However, if the helper process has happened to
exit before the DuplicateHandle() call, the duplication will
fail. Thus we must synchronise the helper process's exit. Use
another pipe for this.
Take care not to inherit the writing end of this pipe to the
helper process. Also, in the helper process, take care not to