proxmox-mirrors/mirror_corosync
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_corosync synced 2025-05-28 02:08:34 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Add retransmit of token if no multicast or token received

Browse Source 
within a timeout period (100 msec).  This helps avoid
a reconfiguration when only the token is lost, but no
real configuration changes have occured.

(Logical change 1.32)


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@98 fd59a12c-fef9-0310-b244-a6a79926bd2f
This commit is contained in:
Steven Dake 2004-07-12 04:16:02 +00:00
parent dd7f1e67d3
commit d886159e29
1 changed files with 54 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
exec/gmi.c
View File

@ -77,6 +77,7 @@
#define MISSING_MCAST_WINDOW 64
#define TIMEOUT_STATE_GATHER 100
#define TIMEOUT_TOKEN 300
#define TIMEOUT_TOKEN_RETRANSMIT 100
#define TIMEOUT_STATE_COMMIT 100
#define MAX_MEMBERS 16
#define HOLE_LIST_MAX MISSING_MCAST_WINDOW
@ -169,11 +170,17 @@ int gmi_fragment = 0;
int gmi_pend_queue_priority = 0;
struct orf_token orf_token_retransmit;
int gmi_token_seqid = 0;
/*
* Timers
*/
poll_timer_handle timer_orf_token_timeout = 0;
poll_timer_handle timer_orf_token_retransmit_timeout = 0;
poll_timer_handle timer_form_token_timeout = 0;
poll_timer_handle timer_memb_state_gather_timeout = 0;
@ -224,11 +231,10 @@ struct rtr_item {
struct orf_token {
struct message_header header;
int token_seqid;
int group_arut;
struct in_addr addr_arut;
short int fcc;
short int brake;
struct in_addr brake_addr;
struct rtr_item rtr_list[RTR_TOKEN_SIZE_MAX];
int rtr_list_entries;
};
@ -378,6 +384,7 @@ static int orf_token_mcast (struct orf_token *orf_token,
static void queues_pend_delv_memb_new (void);
static void calculate_group_arut (struct orf_token *orf_token);
static int messages_free (int group_arut);
static int orf_token_send (struct orf_token *orf_token);
struct message_handlers gmi_message_handlers = {
5,
@ -1361,6 +1368,8 @@ printf ("EVS STATE group arut %d gmi arut %d highest %d barrier %d starting grou
gmi_adut_old = gmi_adut;
gmi_adut = 0;
gmi_token_seqid = 0;
gmi_highest_seq_old = gmi_highest_seq;
gmi_highest_seq = 0;
last_group_arut = 0;
@ -1508,6 +1517,18 @@ static int orf_fcc_allowed (struct orf_token *token)
return (allowed);
}
/*
* Retransmit the regular token if no mcast or token has
* been received in retransmit token period retransmit
* the token to the next processor
*/
void timer_function_token_retransmit_timeout (void *data)
{
gmi_log_printf (gmi_log_level_warning, "Token being retransmitted.\n");
orf_token_send (&orf_token_retransmit);
}
void timer_function_form_token_timeout (void *data)
{
gmi_log_printf (gmi_log_level_warning, "Token loss in FORM state\n");
@ -1589,6 +1610,7 @@ static int orf_token_send (
/*
* res not used here errors are handled by algorithm
*/
// TODO do we need a test here of some sort
gmi_last_seqid = orf_token->header.seqid;
stats_sent += res;
@ -1602,6 +1624,7 @@ int orf_token_send_initial (void)
orf_token.header.seqid = 0;
orf_token.header.type = MESSAGE_TYPE_ORF_TOKEN;
orf_token.token_seqid = 0;
orf_token.group_arut = gmi_highest_seq;
orf_token.addr_arut.s_addr = gmi_bound_to.sin_addr.s_addr;
orf_token.fcc = 0;
@ -2187,8 +2210,25 @@ static int message_handler_orf_token (
int transmits_allowed;
int starting_group_arut;
#ifdef TESTTOKENDROP
if ((random() % 500) == 0) {
printf ("randomly dropping token to test token retransmit.\n");
return (0);
}
#endif
orf_token = iovec[0].iov_base;
/*
* Already received this token, but it was retransmitted
* to this processor because the retransmit timer on a previous
* processor timed out, so ignore the token
*/
if (gmi_token_seqid > orf_token->token_seqid) {
return (0);
}
poll_timer_delete (*gmi_poll_handle, timer_orf_token_retransmit_timeout);
timer_orf_token_retransmit_timeout = 0;
#ifdef PRINT_STATS
if (orf_token->header.seqid > 10000) {
print_stats ();
@ -2256,6 +2296,16 @@ static int message_handler_orf_token (
calculate_group_arut (orf_token);
}
/*
* Increment the token seqid and store for later retransmit
*/
orf_token->token_seqid += 1;
memcpy (&orf_token_retransmit, orf_token, sizeof (struct orf_token));
poll_timer_add (*gmi_poll_handle, TIMEOUT_TOKEN_RETRANSMIT, 0,
timer_function_token_retransmit_timeout,
&timer_orf_token_retransmit_timeout);
/*
* Transmit orf_token to next member
*/
@ -2641,6 +2691,8 @@ static int message_handler_mcast (
return (0);
}
poll_timer_delete (*gmi_poll_handle, timer_orf_token_retransmit_timeout);
timer_orf_token_retransmit_timeout = 0;
/*
* Add mcast message to rtr queue if not already in rtr queue