Changeset 7fe6dfa for configure.in

Timestamp:

10/02/15 11:59:07 (5 years ago)

Author:

Shane Alcock <salcock@…>

Branches:

4.0.1-hotfixes, cachetimestamps, develop, dpdk-ndag, etsilive, libtrace4, master, ndag_format, pfring, rc-4.0.1, rc-4.0.2, rc-4.0.3, rc-4.0.4, ringdecrementfix, ringperformance, ringtimestampfixes

Children:

32a3ec5

Parents:

01619eb

Message:

Enforce immediate mode for pcap if available

This will prevent pcap from buffering packets internally, which can really
mess with any real-time analysis (especially since pcap seems to ignore
the timeout (observed in Debian Jessie)).

File:

• configure.in (modified) (2 diffs)

configure.in

@@ -216 +216 @@
 AC_CHECK_LIB(pcap,pcap_next_ex,pcapfound=1,pcapfound=0)
 AC_CHECK_LIB(pcap,pcap_create,pcapcreate=1,pcapcreate=0)
+AC_CHECK_LIB(pcap,pcap_set_immediate_mode,pcapimmediate=1,pcapimmediate=0)
 AC_CHECK_DECLS([BIOCSETIF],,,[
 #include <sys/types.h>
@@ -260 +261 @@
         AC_DEFINE([HAVE_PCAP_CREATE],1,[compile with libpcap 1.0 support])
 fi
+
+if test "$pcapimmediate" = 1; then
+        AC_DEFINE([HAVE_PCAP_IMMEDIATE],1,[able to use pcap_set_immediate_mode])
+fi        
 
 # Configure options for use of DAG cards