Module Name: src
Committed By: christos
Date: Sun May 27 20:05:05 UTC 2012
Modified Files:
src/sbin/iscsid: Makefile iscsid.8 iscsid.h iscsid_driverif.c
iscsid_lists.c iscsid_main.c
Log Message:
use -n for nothreads.
To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/sbin/iscsid/Makefile src/sbin/iscsid/iscsid.h
cvs rdiff -u -r1.3 -r1.4 src/sbin/iscsid/iscsid.8
cvs rdiff -u -r1.4 -r1.5 src/sbin/iscsid/iscsid_driverif.c \
src/sbin/iscsid/iscsid_lists.c src/sbin/iscsid/iscsid_main.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sbin/iscsid/Makefile
diff -u src/sbin/iscsid/Makefile:1.2 src/sbin/iscsid/Makefile:1.3
--- src/sbin/iscsid/Makefile:1.2 Sun May 27 15:52:51 2012
+++ src/sbin/iscsid/Makefile Sun May 27 16:05:04 2012
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.2 2012/05/27 19:52:51 christos Exp $
+# $NetBSD: Makefile,v 1.3 2012/05/27 20:05:04 christos Exp $
PROG= iscsid
@@ -8,8 +8,6 @@ SRCS= iscsid_main.c iscsid_lists.c iscsi
CPPFLAGS+= -I${DESTDIR}/usr/include/dev/iscsi
CPPFLAGS+= -I${DESTDIR}/usr/include
CPPFLAGS+= -D_THREAD_SAFE
-CPPFLAGS+= -DISCSI_NOTHREAD
-DBG=-g
MAN= iscsid.8
Index: src/sbin/iscsid/iscsid.h
diff -u src/sbin/iscsid/iscsid.h:1.2 src/sbin/iscsid/iscsid.h:1.3
--- src/sbin/iscsid/iscsid.h:1.2 Sat Oct 29 12:54:49 2011
+++ src/sbin/iscsid/iscsid.h Sun May 27 16:05:04 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: iscsid.h,v 1.2 2011/10/29 16:54:49 christos Exp $ */
+/* $NetBSD: iscsid.h,v 1.3 2012/05/27 20:05:04 christos Exp $ */
/*-
* Copyright (c) 2004,2006,2011 The NetBSD Foundation, Inc.
@@ -908,6 +908,8 @@ typedef struct {
Corresponding version information for driver.
*/
+extern int nothreads;
+
__END_DECLS
#endif /* !_ISCSID_H_ */
Index: src/sbin/iscsid/iscsid.8
diff -u src/sbin/iscsid/iscsid.8:1.3 src/sbin/iscsid/iscsid.8:1.4
--- src/sbin/iscsid/iscsid.8:1.3 Sun May 27 15:52:51 2012
+++ src/sbin/iscsid/iscsid.8 Sun May 27 16:05:04 2012
@@ -1,4 +1,4 @@
-.\" $NetBSD: iscsid.8,v 1.3 2012/05/27 19:52:51 christos Exp $
+.\" $NetBSD: iscsid.8,v 1.4 2012/05/27 20:05:04 christos Exp $
.\"
.\" Copyright (c) 2011 Alistair Crooks <[email protected]>
.\" All rights reserved.
@@ -31,7 +31,7 @@
.Nd interface to kernel iSCSI driver
.Sh SYNOPSIS
.Nm
-.Op Ar d
+.Op Ar dn
.Sh DESCRIPTION
The iSCSI initiator runs as a kernel driver, and provides access
to iSCSI targets running across a network using the iSCSI protocol,
@@ -57,10 +57,12 @@ exits on receiving a terminate message,
(no response to one that is sent to the kernel),
or when an error occurs reading from or writing to the socket.
.Pp
-The only command line argument
+The argument
.Ar d
increases the debug level.
-.Nm .
+The argument
+.Ar n
+makes the daemon single-threaded.
.Pp
It is envisaged that user-level communication take place with
.Nm
Index: src/sbin/iscsid/iscsid_driverif.c
diff -u src/sbin/iscsid/iscsid_driverif.c:1.4 src/sbin/iscsid/iscsid_driverif.c:1.5
--- src/sbin/iscsid/iscsid_driverif.c:1.4 Sun May 27 12:50:32 2012
+++ src/sbin/iscsid/iscsid_driverif.c Sun May 27 16:05:04 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: iscsid_driverif.c,v 1.4 2012/05/27 16:50:32 riz Exp $ */
+/* $NetBSD: iscsid_driverif.c,v 1.5 2012/05/27 20:05:04 christos Exp $ */
/*-
* Copyright (c) 2005,2006,2011 The NetBSD Foundation, Inc.
@@ -923,11 +923,10 @@ event_handler(void *par)
evtp.event_id = event_reg.event_id;
do {
-#ifndef ISCSI_NOTHREAD
- rc = ioctl(driver, ISCSI_WAIT_EVENT, &evtp);
-#else
- rc = ioctl(driver, ISCSI_POLL_EVENT, &evtp);
-#endif
+ if (nothreads)
+ rc = ioctl(driver, ISCSI_POLL_EVENT, &evtp);
+ else
+ rc = ioctl(driver, ISCSI_WAIT_EVENT, &evtp);
if (rc || evtp.status)
break;
@@ -953,9 +952,7 @@ event_handler(void *par)
}
} while (evtp.event_kind != ISCSI_DRIVER_TERMINATING);
-#ifdef ISCSI_NOTHREAD
- if (evtp.event_kind == ISCSI_DRIVER_TERMINATING)
-#endif
+ if (nothreads && evtp.event_kind == ISCSI_DRIVER_TERMINATING)
exit_daemon();
return NULL;
Index: src/sbin/iscsid/iscsid_lists.c
diff -u src/sbin/iscsid/iscsid_lists.c:1.4 src/sbin/iscsid/iscsid_lists.c:1.5
--- src/sbin/iscsid/iscsid_lists.c:1.4 Sun May 27 12:50:32 2012
+++ src/sbin/iscsid/iscsid_lists.c Sun May 27 16:05:04 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: iscsid_lists.c,v 1.4 2012/05/27 16:50:32 riz Exp $ */
+/* $NetBSD: iscsid_lists.c,v 1.5 2012/05/27 20:05:04 christos Exp $ */
/*-
* Copyright (c) 2005,2006,2011 The NetBSD Foundation, Inc.
@@ -37,7 +37,6 @@ static uint32_t initiator_id = 0;
/* -------------------------------------------------------------------------- */
-/*#ifdef ISCSI_NOTHREAD */
#if 0
/*
Index: src/sbin/iscsid/iscsid_main.c
diff -u src/sbin/iscsid/iscsid_main.c:1.4 src/sbin/iscsid/iscsid_main.c:1.5
--- src/sbin/iscsid/iscsid_main.c:1.4 Sun May 27 15:52:51 2012
+++ src/sbin/iscsid/iscsid_main.c Sun May 27 16:05:04 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: iscsid_main.c,v 1.4 2012/05/27 19:52:51 christos Exp $ */
+/* $NetBSD: iscsid_main.c,v 1.5 2012/05/27 20:05:04 christos Exp $ */
/*-
* Copyright (c) 2005,2006,2011 The NetBSD Foundation, Inc.
@@ -45,10 +45,8 @@
list_head_t list[NUM_DAEMON_LISTS]; /* the lists this daemon keeps */
-#ifndef ISCSI_NOTHREAD
pthread_mutex_t sesslist_lock; /* session list lock */
pthread_t event_thread; /* event thread handle */
-#endif
int driver = -1; /* the driver's file desc */
int client_sock; /* the client communication socket */
@@ -57,6 +55,7 @@ int client_sock; /* the client commun
#define ISCSI_DEBUG 0
#endif
int debug_level = ISCSI_DEBUG; /* How much info to display */
+int nothreads;
/*
To avoid memory fragmentation (and speed things up a bit), we use the
@@ -170,21 +169,18 @@ init_daemon(void)
list[i].num_entries = 0;
}
-#ifndef ISCSI_NOTHREAD
- if ((i = pthread_mutex_init(&sesslist_lock, NULL)) != 0) {
+ if (!nothreads && (i = pthread_mutex_init(&sesslist_lock, NULL)) != 0) {
printf("Mutex init failed (%d)\n", i);
close(sock);
return -1;
}
-#endif
if (!register_event_handler()) {
printf("Couldn't register event handler\n");
close(sock);
unlink(ISCSID_SOCK_NAME);
-#ifndef ISCSI_NOTHREAD
- pthread_mutex_destroy(&sesslist_lock);
-#endif
+ if (!nothreads)
+ pthread_mutex_destroy(&sesslist_lock);
return -1;
}
@@ -481,9 +477,9 @@ process_message(iscsid_request_t *req, i
void
exit_daemon(void)
{
-#ifndef ISCSI_NOTHREAD
- LOCK_SESSIONS;
-#endif
+ if (nothreads) {
+ LOCK_SESSIONS;
+ }
deregister_event_handler();
#ifndef ISCSI_MINIMAL
@@ -516,9 +512,7 @@ main(int argc, char **argv)
socklen_t fromlen;
iscsid_request_t *req;
iscsid_response_t *rsp;
-#ifdef ISCSI_NOTHREAD
struct timeval seltout = { 2, 0 }; /* 2 second poll interval */
-#endif
client_sock = init_daemon();
if (client_sock < 0)
@@ -526,8 +520,11 @@ main(int argc, char **argv)
printf("iSCSI Daemon loaded\n");
- while ((c = getopt(argc, argv, "d")) != -1)
+ while ((c = getopt(argc, argv, "dn")) != -1)
switch (c) {
+ case 'n':
+ nothreads++;
+ break;
case 'd':
debug_level++;
break;
@@ -538,19 +535,20 @@ main(int argc, char **argv)
if (!debug_level)
daemon(0, 1);
-#ifndef ISCSI_NOTHREAD
- ret = pthread_create(&event_thread, NULL, event_handler, NULL);
- if (ret) {
- printf("Thread creation failed (%zd)\n", ret);
- close(client_sock);
- unlink(ISCSID_SOCK_NAME);
- deregister_event_handler();
- pthread_mutex_destroy(&sesslist_lock);
- return -1;
+ if (nothreads)
+ setsockopt(client_sock, SOL_SOCKET, SO_RCVTIMEO, &seltout,
+ sizeof(seltout));
+ else {
+ ret = pthread_create(&event_thread, NULL, event_handler, NULL);
+ if (ret) {
+ printf("Thread creation failed (%zd)\n", ret);
+ close(client_sock);
+ unlink(ISCSID_SOCK_NAME);
+ deregister_event_handler();
+ pthread_mutex_destroy(&sesslist_lock);
+ return -1;
+ }
}
-#else
- setsockopt(client_sock, SOL_SOCKET, SO_RCVTIMEO, &seltout, sizeof(seltout));
-#endif
/* ---------------------------------------------------------------------- */
@@ -560,17 +558,19 @@ main(int argc, char **argv)
fromlen = sizeof(from);
len = sizeof(iscsid_request_t);
-#ifdef ISCSI_NOTHREAD
- do {
- ret = recvfrom(client_sock, req, len, MSG_PEEK | MSG_WAITALL,
- (struct sockaddr *) &from, &fromlen);
- if (ret == -1)
- event_handler(NULL);
- } while (ret == -1 && errno == EAGAIN);
-#else
- ret = recvfrom(client_sock, req, len, MSG_PEEK | MSG_WAITALL,
- (struct sockaddr *)(void *)&from, &fromlen);
-#endif
+ if (nothreads) {
+ ret = recvfrom(client_sock, req, len, MSG_PEEK |
+ MSG_WAITALL, (struct sockaddr *)(void *)&from,
+ &fromlen);
+ } else {
+ do {
+ ret = recvfrom(client_sock, req, len, MSG_PEEK |
+ MSG_WAITALL, (struct sockaddr *) &from,
+ &fromlen);
+ if (ret == -1)
+ event_handler(NULL);
+ } while (ret == -1 && errno == EAGAIN);
+ }
if ((size_t)ret != len) {
perror("Receiving from socket");
