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change ctdb_client_read() to use the ctdb_read_pdu() helper

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(This used to be ctdb commit d476aa8533b394af6aced9c80fffaf0eefae1dd0)
This commit is contained in:
Ronnie sahlberg 2007-04-10 08:38:29 +10:00
parent 190b97f0ed
commit c7e54e1437
2 changed files with 46 additions and 74 deletions
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105
ctdb/common/ctdb_daemon.c
View File

@ -159,85 +159,42 @@ static void client_incoming_packet(struct ctdb_client *client, void *data, size_
}
static void ctdb_client_read_cb(uint8_t *data, int cnt, void *args)
{
struct ctdb_client *client = talloc_get_type(args, struct ctdb_client);
struct ctdb_req_header *hdr;
if (cnt < sizeof(*hdr)) {
ctdb_set_error(client->ctdb, "Bad packet length %d\n", cnt);
return;
}
hdr = (struct ctdb_req_header *)data;
if (cnt != hdr->length) {
ctdb_set_error(client->ctdb, "Bad header length %d expected %d\n",
hdr->length, cnt);
return;
}
if (hdr->ctdb_magic != CTDB_MAGIC) {
ctdb_set_error(client->ctdb, "Non CTDB packet rejected\n");
return;
}
if (hdr->ctdb_version != CTDB_VERSION) {
ctdb_set_error(client->ctdb, "Bad CTDB version 0x%x rejected\n", hdr->ctdb_version);
return;
}
/* it is the responsibility of the incoming packet function to free 'data' */
client_incoming_packet(client, data, cnt);
}
static void ctdb_client_read(struct event_context *ev, struct fd_event *fde,
uint16_t flags, void *private)
{
struct ctdb_client *client = talloc_get_type(private, struct ctdb_client);
int num_ready = 0;
ssize_t nread;
uint8_t *data, *data_base;
/*XXX replace this and all other similar code (tcp) with ctdb_io.c/ctdb_read_pdu */
if (ioctl(client->fd, FIONREAD, &num_ready) != 0 ||
num_ready == 0) {
/* we've lost the connection from a client client. */
talloc_free(client);
return;
}
client->partial.data = talloc_realloc_size(client, client->partial.data,
num_ready + client->partial.length);
if (client->partial.data == NULL) {
/* not much we can do except drop the socket */
talloc_free(client);
return;
}
nread = read(client->fd, client->partial.data+client->partial.length, num_ready);
if (nread <= 0) {
/* the connection must be dead */
talloc_free(client);
return;
}
data = client->partial.data;
nread += client->partial.length;
client->partial.data = NULL;
client->partial.length = 0;
if (nread >= 4 && *(uint32_t *)data == nread) {
/* it is the responsibility of the incoming packet function to free 'data' */
client_incoming_packet(client, data, nread);
return;
}
data_base = data;
while (nread >= 4 && *(uint32_t *)data <= nread) {
/* we have at least one packet */
uint8_t *d2;
uint32_t len;
len = *(uint32_t *)data;
d2 = talloc_memdup(client, data, len);
if (d2 == NULL) {
/* sigh */
talloc_free(client);
return;
}
client_incoming_packet(client, d2, len);
data += len;
nread -= len;
}
if (nread > 0) {
/* we have only part of a packet */
if (data_base == data) {
client->partial.data = data;
client->partial.length = nread;
} else {
client->partial.data = talloc_memdup(client, data, nread);
if (client->partial.data == NULL) {
talloc_free(client);
return;
}
client->partial.length = nread;
talloc_free(data_base);
}
return;
}
talloc_free(data_base);
ctdb_read_pdu(client->fd, client, &client->partial, ctdb_client_read_cb, client);
}

15
ctdb/tests/test.sh
View File

@ -16,3 +16,18 @@ bin/ctdb_test --nlist tests/4nodes.txt --listen 127.0.0.3:9001 &
bin/ctdb_test --nlist tests/4nodes.txt --listen 127.0.0.4:9001 &
sleep 3
killall ctdb_test
echo "Trying 2 nodes in daemon mode"
bin/ctdb_test --nlist tests/nodes.txt --listen 127.0.0.1:9001 --daemon &
bin/ctdb_test --nlist tests/nodes.txt --listen 127.0.0.2:9001 --daemon &
sleep 30
killall ctdb_test
echo "Trying 4 nodes in daemon mode"
bin/ctdb_test --nlist tests/4nodes.txt --listen 127.0.0.1:9001 --daemon &
bin/ctdb_test --nlist tests/4nodes.txt --listen 127.0.0.2:9001 --daemon &
bin/ctdb_test --nlist tests/4nodes.txt --listen 127.0.0.3:9001 --daemon &
bin/ctdb_test --nlist tests/4nodes.txt --listen 127.0.0.4:9001 --daemon &
sleep 3
killall ctdb_test