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Try to void destroying a session that is in use
[pazpar2-moved-to-github.git]
/
src
/
connection.c
diff --git
a/src/connection.c
b/src/connection.c
index
dd61f1c
..
cbe26a1
100644
(file)
--- a/
src/connection.c
+++ b/
src/connection.c
@@
-42,7
+42,7
@@
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#include <yaz/comstack.h>
#include <yaz/tcpip.h>
#include "connection.h"
#include <yaz/comstack.h>
#include <yaz/tcpip.h>
#include "connection.h"
-#include "pazpar2.h"
+#include "session.h"
#include "host.h"
#include "client.h"
#include "settings.h"
#include "host.h"
#include "client.h"
#include "settings.h"
@@
-55,8
+55,6
@@
struct connection {
ZOOM_connection link;
struct host *host;
struct client *client;
ZOOM_connection link;
struct host *host;
struct client *client;
- char *ibuf;
- int ibufsize;
char *zproxy;
enum {
Conn_Resolving,
char *zproxy;
enum {
Conn_Resolving,
@@
-68,8
+66,6
@@
struct connection {
struct connection *next; // next for same host or next in free list
};
struct connection *next; // next for same host or next in free list
};
-static struct connection *connection_freelist = 0; /* thread pr */
-
static int connection_connect(struct connection *con, iochan_man_t iochan_man);
static int connection_is_idle(struct connection *co)
static int connection_connect(struct connection *con, iochan_man_t iochan_man);
static int connection_is_idle(struct connection *co)
@@
-98,16
+94,17
@@
static void remove_connection_from_host(struct connection *con)
{
struct connection **conp = &con->host->connections;
assert(con);
{
struct connection **conp = &con->host->connections;
assert(con);
+ yaz_mutex_enter(con->host->mutex);
while (*conp)
{
if (*conp == con)
{
*conp = (*conp)->next;
while (*conp)
{
if (*conp == con)
{
*conp = (*conp)->next;
- return;
+ break;
}
conp = &(*conp)->next;
}
}
conp = &(*conp)->next;
}
- assert(*conp == 0);
+ yaz_mutex_leave(con->host->mutex);
}
// Close connection and recycle structure
}
// Close connection and recycle structure
@@
-126,9
+123,7
@@
void connection_destroy(struct connection *co)
client_disconnect(co->client);
}
xfree(co->zproxy);
client_disconnect(co->client);
}
xfree(co->zproxy);
- co->zproxy = 0;
- co->next = connection_freelist;
- connection_freelist = co;
+ xfree(co);
}
// Creates a new connection for client, associated with the host of
}
// Creates a new connection for client, associated with the host of
@@
-141,17
+136,14
@@
static struct connection *connection_create(struct client *cl,
struct connection *new;
struct host *host = client_get_host(cl);
struct connection *new;
struct host *host = client_get_host(cl);
- if ((new = connection_freelist))
- connection_freelist = new->next;
- else
- {
- new = xmalloc(sizeof (struct connection));
- new->ibuf = 0;
- new->ibufsize = 0;
- }
+ new = xmalloc(sizeof(*new));
new->host = host;
new->host = host;
+
+ yaz_mutex_enter(host->mutex);
new->next = new->host->connections;
new->host->connections = new;
new->next = new->host->connections;
new->host->connections = new;
+ yaz_mutex_leave(host->mutex);
+
new->client = cl;
new->zproxy = 0;
client_set_connection(cl, new);
new->client = cl;
new->zproxy = 0;
client_set_connection(cl, new);
@@
-233,16
+225,15
@@
static void connection_handler(IOCHAN iochan, int event)
{
struct connection *co = iochan_getdata(iochan);
struct client *cl = co->client;
{
struct connection *co = iochan_getdata(iochan);
struct client *cl = co->client;
- struct session *se = 0;
- if (cl)
- se = client_get_session(cl);
- else
+ if (!cl)
{
{
+ /* no client associated with it.. We are probably getting
+ a closed connection from the target.. Or, perhaps, an unexpected
+ package.. We will just close the connection */
connection_destroy(co);
return;
}
connection_destroy(co);
return;
}
-
if (event & EVENT_TIMEOUT)
{
if (co->state == Conn_Connecting)
if (event & EVENT_TIMEOUT)
{
if (co->state == Conn_Connecting)
@@
-272,7
+263,6
@@
void connection_release(struct connection *co)
{
struct client *cl = co->client;
{
struct client *cl = co->client;
- yaz_log(YLOG_DEBUG, "Connection release %s", co->host->hostport);
if (!cl)
return;
client_set_connection(cl, 0);
if (!cl)
return;
client_set_connection(cl, 0);
@@
-281,37
+271,44
@@
void connection_release(struct connection *co)
void connect_resolver_host(struct host *host, iochan_man_t iochan_man)
{
void connect_resolver_host(struct host *host, iochan_man_t iochan_man)
{
- struct connection *con = host->connections;
+ struct connection *con;
+
+start:
+ yaz_mutex_enter(host->mutex);
+ con = host->connections;
while (con)
{
if (con->state == Conn_Resolving)
{
if (!host->ipport) /* unresolved */
{
while (con)
{
if (con->state == Conn_Resolving)
{
if (!host->ipport) /* unresolved */
{
+ yaz_mutex_leave(host->mutex);
connection_destroy(con);
connection_destroy(con);
+ goto start;
/* start all over .. at some point it will be NULL */
/* start all over .. at some point it will be NULL */
- con = host->connections;
- continue;
}
else if (!con->client)
{
}
else if (!con->client)
{
+ yaz_mutex_leave(host->mutex);
connection_destroy(con);
/* start all over .. at some point it will be NULL */
connection_destroy(con);
/* start all over .. at some point it will be NULL */
- con = host->connections;
- continue;
+ goto start;
}
else
{
}
else
{
+ yaz_mutex_leave(host->mutex);
connection_connect(con, iochan_man);
client_start_search(con->client);
connection_connect(con, iochan_man);
client_start_search(con->client);
+ goto start;
}
}
else
{
yaz_log(YLOG_LOG, "connect_resolver_host: state=%d", con->state);
}
}
else
{
yaz_log(YLOG_LOG, "connect_resolver_host: state=%d", con->state);
+ con = con->next;
}
}
- con = con->next;
}
}
+ yaz_mutex_leave(host->mutex);
}
static struct host *connection_get_host(struct connection *con)
}
static struct host *connection_get_host(struct connection *con)
@@
-424,7
+421,6
@@
int client_prep_connection(struct client *cl,
iochan_man_t iochan_man)
{
struct connection *co;
iochan_man_t iochan_man)
{
struct connection *co;
- struct session *se = client_get_session(cl);
struct host *host = client_get_host(cl);
struct session_database *sdb = client_get_database(cl);
const char *zproxy = session_setting_oneval(sdb, PZ_ZPROXY);
struct host *host = client_get_host(cl);
struct session_database *sdb = client_get_database(cl);
const char *zproxy = session_setting_oneval(sdb, PZ_ZPROXY);
@@
-443,9
+439,10
@@
int client_prep_connection(struct client *cl,
{
// See if someone else has an idle connection
// We should look at timestamps here to select the longest-idle connection
{
// See if someone else has an idle connection
// We should look at timestamps here to select the longest-idle connection
+ yaz_mutex_enter(host->mutex);
for (co = host->connections; co; co = co->next)
if (connection_is_idle(co) &&
for (co = host->connections; co; co = co->next)
if (connection_is_idle(co) &&
- (!co->client || client_get_session(co->client) != se) &&
+ (!co->client || client_get_state(co->client) == Client_Idle) &&
!strcmp(ZOOM_connection_option_get(co->link, "user"),
session_setting_oneval(client_get_database(cl),
PZ_AUTHENTICATION)))
!strcmp(ZOOM_connection_option_get(co->link, "user"),
session_setting_oneval(client_get_database(cl),
PZ_AUTHENTICATION)))
@@
-460,6
+457,7
@@
int client_prep_connection(struct client *cl,
connection_release(co);
client_set_connection(cl, co);
co->client = cl;
connection_release(co);
client_set_connection(cl, co);
co->client = cl;
+ yaz_mutex_leave(host->mutex);
co->operation_timeout = operation_timeout;
co->session_timeout = session_timeout;
/* tells ZOOM to reconnect if necessary. Disabled becuase
co->operation_timeout = operation_timeout;
co->session_timeout = session_timeout;
/* tells ZOOM to reconnect if necessary. Disabled becuase
@@
-468,6
+466,7
@@
int client_prep_connection(struct client *cl,
}
else
{
}
else
{
+ yaz_mutex_leave(host->mutex);
co = connection_create(cl, operation_timeout, session_timeout,
iochan_man);
}
co = connection_create(cl, operation_timeout, session_timeout,
iochan_man);
}