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adds tv_usec field for precision capture #25

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Merged
caizhengxin merged 1 commit into from
Sep 4, 2025
Merged

adds tv_usec field for precision capture #25

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13 changes: 7 additions & 6 deletions pylibpcap/base.pyx
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Original file line number Diff line number Diff line change
Expand Up @@ -64,10 +64,10 @@ cdef class BasePcap(object):
# create file
open(self.path, 'w').close()

self.out_pcap = pcap_dump_open(self.handler, self.path)
self.out_pcap = pcap_dump_open(self.handler, self.path)

if self.out_pcap == NULL:
raise LibpcapError(self.get_handler_error())
raise LibpcapError(self.get_handler_error())

def _to_c_str(self, v):
"""Python str to C str
Expand Down Expand Up @@ -269,7 +269,7 @@ cdef class Sniff(BasePcap):
cdef object nonblocking_thread

def __init__(self, str iface, int count=-1, int promisc=0, int snaplen=65535,
int timeout=0, str filters="", str out_file="", int monitor=-1,
int timeout=0, str filters="", str out_file="", int monitor=-1,
immediate_mode=0, *args, **kwargs):
"""init
"""
Expand Down Expand Up @@ -319,7 +319,7 @@ cdef class Sniff(BasePcap):
self.set_filter(self.handler, self.filters)

self.out_pcap = pcap_dump_open(self.handler, self.out_file) if out_file else NULL

def capture_nonblocking_thread(self):
"""Code that runs in the thread
"""
Expand All @@ -342,7 +342,6 @@ cdef class Sniff(BasePcap):
"""
return self.nonblocking_thread and self.nonblocking_thread.is_alive()


def stop_capture_nonblocking(self):
"""Stop capturing packets in another thread (capture_nonblocking)
"""
Expand Down Expand Up @@ -375,7 +374,9 @@ cdef class Sniff(BasePcap):
if count > 0:
count -= 1

yield pkt_header.caplen, pkt_header.ts.tv_sec, (<char*>pkt)[:pkt_header.caplen]
timestamp = pkt_header.ts.tv_sec + (pkt_header.ts.tv_usec / 1000000.0)

yield pkt_header.caplen, timestamp, (<char*>pkt)[:pkt_header.caplen]

def stats(self):
"""stats
Expand Down