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Add cheap EBADF loop protection.

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This commit is contained in:
Kurt Zeilenga 1999-06-10 21:11:21 +00:00
parent fde9d8702e
commit 571e8c098d
1 changed files with 9 additions and 1 deletions
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10
servers/slapd/daemon.c
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@ -295,6 +295,8 @@ slapd_daemon_task(
while ( !slapd_shutdown ) {
unsigned int i;
int ns, nfds;
int ebadf = 0;
#define SLAPD_EBADF_LIMIT 10
fd_set readfds;
fd_set writefds;
@ -360,7 +362,11 @@ slapd_daemon_task(
case -1: { /* failure - try again */
int err = errno;
if( err != EINTR || err != EBADF) {
if( err == EBADF && ++ebadf < SLAPD_EBADF_LIMIT) {
continue;
}
if( err != EINTR ) {
Debug( LDAP_DEBUG_CONNS,
"daemon: select failed (%d): %s\n",
err,
@ -374,12 +380,14 @@ slapd_daemon_task(
continue;
case 0: /* timeout - let threads run */
ebadf = 0;
Debug( LDAP_DEBUG_CONNS, "daemon: select timeout - yielding\n",
0, 0, 0 );
ldap_pvt_thread_yield();
continue;
default: /* something happened - deal with it */
ebadf = 0;
Debug( LDAP_DEBUG_CONNS, "daemon: activity on %d descriptors\n",
ns, 0, 0 );
/* FALL THRU */