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* spawn.cc (child_info_spawn::worker): Add CREATE_BREAKAWAY_FROM_JOB

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to c_flags only if current process is member of a job and breakaway
	is allowed.
This commit is contained in:
Corinna Vinschen
2011-12-22 14:33:08 +00:00
parent 964a927fe6
commit a4ea75600c
2 changed files with 18 additions and 2 deletions
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14
winsup/cygwin/spawn.cc
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@ -452,6 +452,9 @@ child_info_spawn::worker (const char *prog_arg, const char *const *argv,
c_flags = GetPriorityClass (GetCurrentProcess ());
sigproc_printf ("priority class %d", c_flags);
c_flags |= CREATE_SEPARATE_WOW_VDM | CREATE_UNICODE_ENVIRONMENT;
/* We're adding the CREATE_BREAKAWAY_FROM_JOB flag here to workaround issues
with the "Program Compatibility Assistant (PCA) Service" observed on
Windows 7. For some reason, when starting long running sessions from
@ -461,8 +464,15 @@ child_info_spawn::worker (const char *prog_arg, const char *const *argv,
mintty session, or to stop the PCA service. However, a process which
is controlled by PCA is part of a compatibility job, which allows child
processes to break away from the job. This helps to avoid this issue. */
c_flags |= CREATE_SEPARATE_WOW_VDM | CREATE_UNICODE_ENVIRONMENT
| CREATE_BREAKAWAY_FROM_JOB;
JOBOBJECT_BASIC_LIMIT_INFORMATION jobinfo;
if (QueryInformationJobObject (NULL, JobObjectBasicLimitInformation,
&jobinfo, sizeof jobinfo, NULL)
&& (jobinfo.LimitFlags & (JOB_OBJECT_LIMIT_BREAKAWAY_OK
| JOB_OBJECT_LIMIT_SILENT_BREAKAWAY_OK)))
{
debug_printf ("Add CREATE_BREAKAWAY_FROM_JOB");
c_flags |= CREATE_BREAKAWAY_FROM_JOB;
}
if (mode == _P_DETACH)
c_flags |= DETACHED_PROCESS;