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Copy pathdtrace_structs.py
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122 lines (98 loc) · 3.34 KB
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"""
The DTrace data structures.
Created on Oct 10, 2011
@author: tmetsch
"""
# disabling 'too few public meth' pylint check (R0903)
# disabling 'Invalid name' pylint check (C0103)
# pylint: disable=R0903,C0103
from ctypes import (c_int64, c_size_t, c_uint16, c_uint32, c_uint64, POINTER,
Structure, c_int, c_void_p, c_char_p, c_char, c_uint)
class dtrace_hdl(Structure):
"""
DTrace handle.
"""
class dtrace_prog(Structure):
"""
DTrace prog.
"""
dtrace_hdl_t = POINTER(dtrace_hdl)
dtrace_prog_t = POINTER(dtrace_prog)
class dtrace_recdesc(Structure):
"""
sys/dtrace.h:931
"""
_fields_ = [
("dtrd_action", c_uint16), # dtrace_actkind_t
("dtrd_size", c_uint32),
("dtrd_offset", c_uint32),
("dtrd_alignment", c_uint16),
("dtrd_format", c_uint16),
("dtrd_arg", c_uint64),
("dtrd_uarg", c_uint64)]
class dtrace_aggdesc(Structure):
"""
sys/dtrace.h:950
"""
_fields_ = [("dtagd_name", c_char_p),
("dtagd_varid", c_int64), # dtrace_aggvarid_t
("dtagd_flags", c_int),
("dtagd_id", c_void_p), # dtrace_aggid_t
("dtagd_epid", c_void_p), # dtrace_epid_t
("dtagd_size", c_uint32),
("dtagd_nrecs", c_int),
("dtagd_pad", c_uint32),
("dtagd_rec", dtrace_recdesc), # variable-length
]
class dtrace_probedesc(Structure):
"""
As defined in sys/dtrace.h:884
"""
_fields_ = [("dtrace_id_t", c_uint),
("dtpd_provider", c_char),
("dtpd_mod", c_char),
("dtpd_func", c_char_p),
("dtpd_name", c_char_p)]
class dtrace_aggdata(Structure):
"""
As defined in dtrace.h:351
"""
_fields_ = [("dtada_handle", dtrace_hdl_t),
("dtada_desc", POINTER(dtrace_aggdesc)),
("dtada_edesc", c_void_p),
("dtada_pdesc", POINTER(dtrace_probedesc)),
("dtada_data", c_void_p),
("dtada_normal", c_uint64),
("dtada_size", c_size_t),
("dtada_delta", c_void_p),
("dtada_percpu", c_void_p),
("dtada_percpu_delta", c_void_p),
("dtada_total", c_int64),
("dtada_minbin", c_uint16),
("dtada_maxbin", c_uint16),
("dtada_flags", c_uint32)]
class dtrace_probedata(Structure):
"""
As defined in dtrace.h:186
"""
_fields_ = [("dtpda_handle", dtrace_hdl_t),
("dtpda_edesc", c_void_p),
("dtpda_pdesc", POINTER(dtrace_probedesc)),
("dtpda_cpu", c_int),
("dtpda_data", c_void_p),
("dtpda_flow", c_int), # dtrace_flowkind_t
("dtpda_prefix", c_char_p),
("dtpda_indent", c_int)]
class dtrace_bufdata(Structure):
"""
As defined in dtrace.h:310
"""
_fields_ = [("dtbda_handle", dtrace_hdl_t),
("dtbda_buffered", c_char_p),
("dtbda_probe", POINTER(dtrace_probedata)),
("dtbda_recdesc", POINTER(dtrace_recdesc)),
("dtbda_aggdata", POINTER(dtrace_aggdata)),
("dtbda_flags", c_uint)]
DTRACE_WORKSTATUS_ERROR = -1
DTRACE_WORKSTATUS_OKAY = 0
DTRACE_WORKSTATUS_DONE = 1