int start_zookeeper(view* cur_view, int *zfd, pthread_mutex_t *lock)
{
int rc;
char zoo_host_port[32];
sprintf(zoo_host_port, "localhost:%d", zoo_port);
zh = zookeeper_init(zoo_host_port, zookeeper_init_watcher, 15000, 0, 0, 0);
while(is_connected != 1);
int interest, fd;
struct timeval tv;
zookeeper_interest(zh, &fd, &interest, &tv);
*zfd = fd;
char path_buffer[512];
rc = zoo_create(zh, "/election/guid-n_", NULL, -1, &ZOO_OPEN_ACL_UNSAFE, ZOO_SEQUENCE|ZOO_EPHEMERAL, path_buffer, 512);
if (rc)
{
fprintf(stderr, "Error %d for zoo_create\n", rc);
}
char znode_path[512];
get_znode_path(path_buffer, znode_path);
check_leader(cur_view, path_buffer);
struct watcherContext *watcherPara = (struct watcherContext *)malloc(sizeof(struct watcherContext));
strcpy(watcherPara->znode_path, znode_path);
watcherPara->lock = lock;
watcherPara->cur_view = cur_view;
rc = zoo_wget_children(zh, "/election", zoo_wget_children_watcher, (void*)watcherPara, NULL);
if (rc)
{
fprintf(stderr, "Error %d for zoo_wget_children\n", rc);
}
return 0;
}
void
proc_remove_breakpoint(struct Process *proc, struct breakpoint *bp)
{
debug(DEBUG_FUNCTION, "proc_remove_breakpoint(pid=%d, %s@%p)",
proc->pid, breakpoint_name(bp), bp->addr);
check_leader(proc);
struct breakpoint *removed = dict_remove(proc->breakpoints, bp->addr);
assert(removed == bp);
}
void zoo_wget_children_watcher(zhandle_t *wzh, int type, int state, const char *path, void *watcherCtx) {
if (type == ZOO_CHILD_EVENT)
{
int rc;
struct watcherContext *watcherPara = (struct watcherContext*)watcherCtx;
// block the threads
pthread_mutex_lock(watcherPara->lock);
rc = zoo_wget_children(zh, "/election", zoo_wget_children_watcher, watcherCtx, NULL);
if (rc)
{
fprintf(stderr, "Error %d for zoo_wget_children\n", rc);
}
check_leader(watcherPara->cur_view, watcherPara->znode_path);
pthread_mutex_unlock(watcherPara->lock);
}
}
int
proc_add_breakpoint(struct Process *proc, struct breakpoint *bp)
{
debug(DEBUG_FUNCTION, "proc_add_breakpoint(pid=%d, %s@%p)",
proc->pid, breakpoint_name(bp), bp->addr);
check_leader(proc);
/* XXX We might merge bp->libsym instead of the following
* assert, but that's not necessary right now. Read the
* comment in breakpoint_for_symbol. */
assert(dict_find_entry(proc->breakpoints, bp->addr) == NULL);
if (dict_enter(proc->breakpoints, bp->addr, bp) < 0) {
fprintf(stderr,
"couldn't enter breakpoint %s@%p to dictionary: %s\n",
breakpoint_name(bp), bp->addr, strerror(errno));
return -1;
}
return 0;
}
