[GRASS-dev] [GRASS GIS] #2775: Hangs when closing db drivers

[GRASS GIS]

#2775: Hangs when closing db drivers
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 Reporter:  rblazek   |      Owner:  grass-dev@…
     Type:  defect    |     Status:  new
 Priority:  normal    |  Milestone:
Component:  Database  |    Version:  unspecified
 Keywords:            |        CPU:  Unspecified
 Platform:  Linux     |
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 Module hangs if db drivers are not closed in revers order to the order in
 which were opened. For example open driver A, open driver B, close driver
 A hangs forever on waitpid() in G_wait() because driver process does not
 exit when its stdin is closed in db_shutdown_driver() by
 fclose(driver->send). fclose() returns 0 (ok). The driver is probably
 hanging on  db!__recv_procnum() even if stdin was closed.

 It is fixed by enabling procedure DB_PROC_SHUTDOWN_DRIVER like it is used
 on Window. Patch attached.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2775>
GRASS GIS <https://grass.osgeo.org>