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sd-dhcp-client: use asynchronous_close()

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close() is a blocking call, which may slow things down measurably when running many dhcp
clients in the same single-threaded main loop. Let's just use the asynchronous version
instead to avoid the problem.
This commit is contained in:
Tom Gundersen
2014-05-06 22:59:22 +02:00
parent c3d2994b59
commit 22fc2420b2
1 changed files with 4 additions and 3 deletions
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7
src/libsystemd-network/sd-dhcp-client.c
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@@ -30,6 +30,7 @@
#include "util.h"
#include "list.h"
#include "refcnt.h"
#include "async.h"
#include "dhcp-protocol.h"
#include "dhcp-internal.h"
@@ -209,7 +210,7 @@ static int client_initialize(sd_dhcp_client *client) {
client->receive_message =
sd_event_source_unref(client->receive_message);
client->fd = safe_close(client->fd);
client->fd = asynchronous_close(client->fd);
client->timeout_resend = sd_event_source_unref(client->timeout_resend);
@@ -747,7 +748,7 @@ static int client_timeout_t2(sd_event_source *s, uint64_t usec, void *userdata)
int r;
client->receive_message = sd_event_source_unref(client->receive_message);
client->fd = safe_close(client->fd);
client->fd = asynchronous_close(client->fd);
client->state = DHCP_STATE_REBINDING;
client->attempt = 1;
@@ -1153,7 +1154,7 @@ static int client_handle_message(sd_dhcp_client *client, DHCPMessage *message,
client->receive_message =
sd_event_source_unref(client->receive_message);
client->fd = safe_close(client->fd);
client->fd = asynchronous_close(client->fd);
} else if (r == -ENOMSG)
/* invalid message, let's ignore it */
return 0;