PERFORCE change 126327 for review
Zhouyi ZHOU
zhouzhouyi at FreeBSD.org
Tue Sep 11 23:52:13 PDT 2007
http://perforce.freebsd.org/chv.cgi?CH=126327
Change 126327 by zhouzhouyi at zhouzhouyi_mactest on 2007/09/12 06:51:32
Modify the semaphore implementation of concurreny of tcp_server and tcp_client
Affected files ...
.. //depot/projects/soc2007/zhouzhouyi_mactest_soc/regression/mactest/tcpconnect.c#2 edit
Differences ...
==== //depot/projects/soc2007/zhouzhouyi_mactest_soc/regression/mactest/tcpconnect.c#2 (text+ko) ====
@@ -152,6 +152,14 @@
printf("pcap_open_live(): %s\n",errbuf); exit(1);
}
/*Release the semaphore to let server go*/
+ for (;;) {
+ int i;
+ i = semctl(semid, 0, GETNCNT);
+ if (i == -1)
+ err(1, "semctl GETNCNT");
+ if (i == 1)
+ break;
+ }
s.sem_num = 0;
s.sem_op = 1;
s.sem_flg = SEM_UNDO;
@@ -183,6 +191,14 @@
err(1, "sever: semop -1");
/*Release the semaphore to let client go */
+ for (;;) {
+ int i;
+ i = semctl(semid1, 0, GETNCNT);
+ if (i == -1)
+ err(1, "semctl GETNCNT");
+ if (i == 1)
+ break;
+ }
s1.sem_num = 0;
s1.sem_op = 1;
s1.sem_flg = SEM_UNDO;
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