int
check_dependency (command_t cmd, outfile_t head)
{
if (cmd == NULL||cmd->head_depend == NULL)
{
error(1,0,"Error: invalid command!");
//printf("do something");
return -1;
}
if(head == NULL)
return 0;
cmd->dependency=0;
//dependency_text[i] should be a char*
depend_list_t ptr = cmd->head_depend;
while (ptr!= NULL)
{
outfile_t depend = head;
while (depend != NULL)
{
if (strcmp(ptr->filename,depend->text)==0)//if there exists dependency
{
add_to_waitlist(depend->cmd, ptr->cmd); //(waited command, waiting command)
cmd->dependency ++; //has dependency, count+1
break; //跳出子循环；
}
depend = depend ->next;
}
ptr = ptr->next;
}
return cmd->dependency;
}
int
check_dependency (command_t cmd, outfile_t head)
{
if (cmd == NULL || head == NULL)
{
app_printf("do something");
return -1;
}
int dependency=0;
//dependency_text[i] should be a char*
while (cmd -> depend_file->filename != NULL)
{
outfile_t depend = head;
while (depend != outfile_tail)
{
if cmd -> depend_file->filename == depend->text)
{
add_to_waitlist(depend->cmd, depend_file->cmd) //(waited command, waiting command)
cmd->dependency ++; //has dependency, count+1
break; //跳出子循环；
}
depend = depend ->next;
}
}
return cmd->dependency;
}
void set_command_status (command_t cmd, outfile_t head)
{
if (check_dependency (cmd, head) == -1)
error (1, 0, "Error check dependency!" )
else if (check_dependency (cmd, head) == 0)
{
execute_command (cmd, time_travel);
wakeup_waitlist(cmd);
}
else
{
add_to_waitlist(); //如果dependency>1，add to 多个waitlist，每次wake 则 dependency-1
//当dependency=0时，则execute command
}
}
static int process_cman_message(struct cman_handle *h, int flags, struct sock_header *msg)
{
/* Data for us */
if ((msg->command & CMAN_CMDMASK_CMD) == CMAN_CMD_DATA)
{
struct sock_data_header *dmsg = (struct sock_data_header *)msg;
char *buf = (char *)msg;
if (flags & CMAN_DISPATCH_IGNORE_DATA)
{
add_to_waitlist(&h->saved_data_msg, msg);
}
else
{
if (h->data_callback)
h->data_callback(h, h->privdata,
buf+sizeof(*dmsg), msg->length-sizeof(*dmsg),
dmsg->port, dmsg->nodeid);
}
return 0;
}
/* Got a reply to a previous information request */
if ((msg->command & CMAN_CMDFLAG_REPLY) && h->want_reply)
{
char *replybuf = (char *)msg;
int replylen = msg->length - sizeof(struct sock_reply_header);
struct sock_reply_header *reply = (struct sock_reply_header *)msg;
if (flags & CMAN_DISPATCH_IGNORE_REPLY)
{
add_to_waitlist(&h->saved_reply_msg, msg);
return 0;
}
replybuf += sizeof(struct sock_reply_header);
if (replylen <= h->reply_buflen)
{
memcpy(h->reply_buffer, replybuf, replylen);
}
h->want_reply = 0;
h->reply_status = reply->status;
return 1;
}
/* OOB event */
if (msg->command == CMAN_CMD_EVENT || msg->command == CMAN_CMD_CONFCHG)
{
if (flags & CMAN_DISPATCH_IGNORE_EVENT)
{
add_to_waitlist(&h->saved_event_msg, msg);
}
else
{
if (msg->command == CMAN_CMD_EVENT && h->event_callback) {
struct sock_event_message *emsg = (struct sock_event_message *)msg;
h->event_callback(h, h->privdata, emsg->reason, emsg->arg);
}
if (msg->command == CMAN_CMD_CONFCHG && h->confchg_callback)
{
struct sock_confchg_message *cmsg = (struct sock_confchg_message *)msg;
h->confchg_callback(h, h->privdata,
cmsg->entries,cmsg->member_entries,
&cmsg->entries[cmsg->member_entries], cmsg->left_entries,
&cmsg->entries[cmsg->member_entries+cmsg->left_entries], cmsg->joined_entries);
}
}
}
return 0;
}
