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* sigproc.cc (getsem): Set errno when unable to create own semaphore.

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Reorganize to make clearer that error should only come from initial creation of
process semaphore.
This commit is contained in:
Christopher Faylor
2002-01-07 16:47:12 +00:00
parent 10dedaaa4c
commit 4a08cbfefb
2 changed files with 17 additions and 10 deletions
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6
winsup/cygwin/ChangeLog
View File

@@ -1,3 +1,9 @@
2002-01-07 Christopher Faylor <cgf@redhat.com>
* sigproc.cc (getsem): Set errno when unable to create own semaphore.
Reorganize to make clearer that error should only come from initial
creation of process semaphore.
2002-01-06 Christopher Faylor <cgf@redhat.com>
* dtable.cc (dtable::init_std_file_from_handle): Add some defensive

21
winsup/cygwin/sigproc.cc
View File

@@ -926,6 +926,7 @@ getsem (_pinfo *p, const char *str, int init, int max)
return NULL;
}
int wait = 1000;
/* Wait for new process to generate its semaphores. */
sigproc_printf ("pid %d, ppid %d, wait %d, initializing %x", p->pid, p->ppid, wait,
ISSTATE (p, PID_INITIALIZING));
for (int i = 0; ISSTATE (p, PID_INITIALIZING) && i < wait; i++)
@@ -941,27 +942,27 @@ getsem (_pinfo *p, const char *str, int init, int max)
h = CreateSemaphore (allow_ntsec ? sec_user_nih (sa_buf) : &sec_none_nih,
init, max, str = shared_name (str, winpid));
p = myself;
if (!h)
{
system_printf ("can't %s %s, %E", p ? "open" : "create", str);
__seterrno ();
}
}
else
{
h = OpenSemaphore (SEMAPHORE_ALL_ACCESS, FALSE,
str = shared_name (str, p->dwProcessId));
shared_name (str, p->dwProcessId));
if (h == NULL)
if (!h)
{
if (GetLastError () == ERROR_FILE_NOT_FOUND && !proc_exists (p))
set_errno (ESRCH);
set_errno (ESRCH); /* No such process */
else
set_errno (EPERM);
return NULL;
set_errno (EPERM); /* Couldn't access the semaphore --
different cygwin DLL maybe? */
}
}
if (!h)
{
system_printf ("can't %s %s, %E", p ? "open" : "create", str);
set_errno (ESRCH);
}
return h;
}