2013-02-13 Eli Zaretskii <eliz@gnu.org>
+ * w32proc.c (new_child): If no vacant slots are found in
+ child_procs[], make another pass looking for slots whose process
+ has exited or died. (Bug#13546)
+
* w32.c (sys_pipe): When failing due to file descriptors above
MAXDESC, set errno to EMFILE.
(_sys_read_ahead): Update cp->status when failing to read serial
for (cp = child_procs + (child_proc_count-1); cp >= child_procs; cp--)
if (!CHILD_ACTIVE (cp) && cp->procinfo.hProcess == NULL)
goto Initialize;
+ if (child_proc_count == MAX_CHILDREN)
+ {
+ DebPrint (("new_child: No vacant slots, looking for dead processes\n"));
+ for (cp = child_procs + (child_proc_count-1); cp >= child_procs; cp--)
+ if (!CHILD_ACTIVE (cp) && cp->procinfo.hProcess)
+ {
+ DWORD status = 0;
+
+ if (!GetExitCodeProcess (cp->procinfo.hProcess, &status))
+ {
+ DebPrint (("new_child.GetExitCodeProcess: error %lu for PID %lu\n",
+ GetLastError (), cp->procinfo.dwProcessId));
+ status = STILL_ACTIVE;
+ }
+ if (status != STILL_ACTIVE
+ || WaitForSingleObject (cp->procinfo.hProcess, 0) == WAIT_OBJECT_0)
+ {
+ DebPrint (("new_child: Freeing slot of dead process %d\n",
+ cp->procinfo.dwProcessId));
+ CloseHandle (cp->procinfo.hProcess);
+ cp->procinfo.hProcess = NULL;
+ CloseHandle (cp->procinfo.hThread);
+ cp->procinfo.hThread = NULL;
+ goto Initialize;
+ }
+ }
+ }
if (child_proc_count == MAX_CHILDREN)
return NULL;
cp = &child_procs[child_proc_count++];