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Add low-level access to fb_shutdown_callback API functions #10

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Jan 24, 2022
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Add low-level access to fb_shutdown_callback API functions #10

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24 changes: 24 additions & 0 deletions firebird/driver/fbapi.py
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Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,22 @@
blr_ex_time_tz = 30
blr_ex_timestamp_tz = 31

# Masks for fb_shutdown_callback
fb_shut_confirmation = 1
fb_shut_preproviders = 2
fb_shut_postproviders = 4
fb_shut_finish = 8
fb_shut_exit = 16

# Shutdown reasons, used by engine
fb_shutrsn_svc_stopped = -1
fb_shutrsn_no_connection = -2
fb_shutrsn_app_stopped = -3
fb_shutrsn_signal = -5
fb_shutrsn_services = -6
fb_shutrsn_exit_called = -7
fb_shutrsn_emergency = -8

if platform.architecture() == ('64bit', 'WindowsPE'): # pragma: no cover
intptr_t = c_longlong
uintptr_t = c_ulonglong
Expand Down Expand Up @@ -238,6 +254,7 @@ class ISC_QUAD(Structure):

RESULT_VECTOR = ISC_ULONG * 15
ISC_EVENT_CALLBACK = CFUNCTYPE(None, POINTER(ISC_UCHAR), c_ushort, POINTER(ISC_UCHAR))
FB_SHUTDOWN_CALLBACK = CFUNCTYPE(c_int, c_int, c_int, c_void_p)

# >>> Firebird 4
class ISC_TIME_TZ(Structure):
Expand Down Expand Up @@ -1951,6 +1968,13 @@ def __init__(self, filename: Path = None):
self.fb_sqlstate.restype = None
self.fb_sqlstate.argtypes = [STRING, ISC_STATUS_PTR]
#
self.fb_shutdown_callback = self.client_library.fb_shutdown_callback
self.fb_shutdown_callback.restype = ISC_STATUS
self.fb_shutdown_callback.argtypes = [ISC_STATUS_PTR,
FB_SHUTDOWN_CALLBACK,
c_int,
c_void_p]
#
self.isc_sqlcode = self.client_library.isc_sqlcode
self.isc_sqlcode.restype = ISC_LONG
self.isc_sqlcode.argtypes = [ISC_STATUS_PTR]
Expand Down