Minix/minix
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

service clone command to clone system services on demand.

Browse Source
This commit is contained in:
Cristiano Giuffrida
2010-06-28 21:38:29 +00:00
parent 635a8f772c
commit 869a223d43
5 changed files with 55 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
servers/rs/main.c
View File

@@ -112,6 +112,7 @@ PUBLIC int main(void)
case RS_RESTART: result = do_restart(&m); break;
case RS_SHUTDOWN: result = do_shutdown(&m); break;
case RS_UPDATE: result = do_update(&m); break;
case RS_CLONE: result = do_clone(&m); break;
case GETSYSINFO: result = do_getsysinfo(&m); break;
case RS_LOOKUP: result = do_lookup(&m); break;
/* Ready messages. */

1
servers/rs/proto.h
View File

@@ -15,6 +15,7 @@ _PROTOTYPE( int do_up, (message *m));
_PROTOTYPE( int do_down, (message *m));
_PROTOTYPE( int do_refresh, (message *m));
_PROTOTYPE( int do_restart, (message *m));
_PROTOTYPE( int do_clone, (message *m));
_PROTOTYPE( int do_shutdown, (message *m));
_PROTOTYPE( void do_period, (message *m));
_PROTOTYPE( int do_init_ready, (message *m));

47
servers/rs/request.c
View File

@@ -174,6 +174,51 @@ PUBLIC int do_restart(message *m_ptr)
return OK;
}
/*===========================================================================*
* do_clone *
*===========================================================================*/
PUBLIC int do_clone(message *m_ptr)
{
struct rproc *rp;
struct rprocpub *rpub;
int s, r;
char label[RS_MAX_LABEL_LEN];
char script[MAX_SCRIPT_LEN];
/* Copy label. */
s = copy_label(m_ptr->m_source, m_ptr->RS_CMD_ADDR,
m_ptr->RS_CMD_LEN, label, sizeof(label));
if(s != OK) {
return s;
}
/* Lookup slot by label. */
rp = lookup_slot_by_label(label);
if(!rp) {
if(rs_verbose)
printf("RS: do_clone: service '%s' not found\n", label);
return(ESRCH);
}
rpub = rp->r_pub;
/* Check if the call can be allowed. */
if((r = check_call_permission(m_ptr->m_source, RS_CLONE, rp)) != OK)
return r;
/* Don't clone if a replica is already available. */
if(rp->r_next_rp) {
return EEXIST;
}
/* Clone the service as requested. */
rpub->sys_flags |= SF_USE_REPL;
if ((r = clone_service(rp)) != OK) {
rpub->sys_flags &= ~SF_USE_REPL;
return r;
}
return OK;
}
/*===========================================================================*
* do_refresh *
@@ -516,7 +561,7 @@ message *m_ptr;
*/
for (rp=BEG_RPROC_ADDR; rp<END_RPROC_ADDR; rp++) {
rpub = rp->r_pub;
if ((rp->r_flags & RS_IN_USE) && !(rp->r_flags & RS_UPDATING)) {
if ((rp->r_flags & RS_ACTIVE) && !(rp->r_flags & RS_UPDATING)) {
/* Compute period. */
period = rpub->period;