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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/fastos/fastos.h>
#include <vespa/log/log.h>
LOG_SETUP(".rpcsrvmap");
#include <vector>
#include "rpc_server_map.h"
#include "named_service.h"
#include "reserved_name.h"
#include "rpc_server_manager.h"
#include "sbenv.h"
namespace slobrok {
//-----------------------------------------------------------------------------
NamedService *
RpcServerMap::lookup(const char *name) const
{
NamedService *d = _myrpcsrv_map[name];
return d;
}
NamedService *
RpcServerMap::remove(const char *name)
{
_visible_map.remove(name);
NamedService *d = _myrpcsrv_map.remove(name);
return d;
}
std::vector<const NamedService *>
RpcServerMap::lookupPattern(const char *pattern) const
{
std::vector<const NamedService *> retval;
for (HashMap<ManagedRpcServer *>::Iterator it = _myrpcsrv_map.iterator();
it.valid(); it.next())
{
if (match(it.key(), pattern)) {
retval.push_back(it.value());
}
}
return retval;
}
std::vector<const NamedService *>
RpcServerMap::allManaged() const
{
std::vector<const NamedService *> retval;
// get list of all names in myrpcsrv_map
for (HashMap<ManagedRpcServer *>::Iterator it = _myrpcsrv_map.iterator();
it.valid(); it.next())
{
retval.push_back(it.value());
}
return retval;
}
void
RpcServerMap::add(NamedService *rpcsrv)
{
const char *name = rpcsrv->getName();
LOG_ASSERT(rpcsrv != NULL);
LOG_ASSERT(_myrpcsrv_map.isSet(name) == false);
removeReservation(name);
LOG_ASSERT(_visible_map.lookup(name) == NULL);
_visible_map.addNew(rpcsrv);
}
void
RpcServerMap::addNew(ManagedRpcServer *rpcsrv)
{
const char *name = rpcsrv->getName();
ManagedRpcServer *oldman = _myrpcsrv_map.remove(name);
if (oldman != NULL) {
ReservedName *oldres = _reservations[name];
NamedService *oldvis = _visible_map.remove(name);
const char *spec = rpcsrv->getSpec();
const char *oldname = oldman->getName();
const char *oldspec = oldman->getSpec();
if (strcmp(spec, oldspec) != 0) {
LOG(warning, "internal state problem: adding [%s at %s] but already had [%s at %s]",
name, spec, oldname, oldspec);
if (oldvis != oldman) {
const char *n = oldvis->getName();
const char *s = oldvis->getSpec();
LOG(warning, "BAD: different old visible: [%s at %s]", n, s);
}
if (oldres != NULL) {
const char *n = oldres->getName();
const char *s = oldres->getSpec();
LOG(warning, "old reservation: [%s at %s]", n, s);
}
}
delete oldman;
}
add(rpcsrv);
_myrpcsrv_map.set(name, rpcsrv);
}
void
RpcServerMap::addReservation(ReservedName *rpcsrv)
{
LOG_ASSERT(rpcsrv != NULL);
LOG_ASSERT(_myrpcsrv_map.isSet(rpcsrv->getName()) == false);
// must not be reserved for something else already
// this should have been checked already, so assert
LOG_ASSERT(! conflictingReservation(rpcsrv->getName(), rpcsrv->getSpec()));
ReservedName *old = _reservations.set(rpcsrv->getName(), rpcsrv);
LOG_ASSERT(old == NULL
|| strcmp(old->getSpec(), rpcsrv->getSpec()) == 0
|| ! old->stillReserved());
delete old;
}
/** check if there is a (different) registration for this name in progress */
bool
RpcServerMap::conflictingReservation(const char *name, const char *spec)
{
ReservedName *resv = _reservations[name];
return (resv != NULL &&
resv->stillReserved() &&
strcmp(resv->getSpec(), spec) != 0);
}
RpcServerMap::~RpcServerMap()
{
// get list of names in rpcsrv_map
std::vector<const char *> names;
for (HashMap<ManagedRpcServer *>::Iterator it = _myrpcsrv_map.iterator();
it.valid(); it.next())
{
names.push_back(it.key());
}
for (uint32_t i = 0; i < names.size(); i++) {
NamedService *rpcsrv = _myrpcsrv_map.remove(names[i]);
LOG_ASSERT(rpcsrv != NULL);
delete rpcsrv;
}
LOG_ASSERT(_myrpcsrv_map.size() == 0);
}
bool
RpcServerMap::match(const char *name, const char *pattern)
{
LOG_ASSERT(name != NULL);
LOG_ASSERT(pattern != NULL);
while (*pattern != '\0') {
if (*name == *pattern) {
++name;
++pattern;
} else if (*pattern == '*') {
++pattern;
while (*name != '/' && *name != '\0') {
++name;
}
} else {
return false;
}
}
return (*name == *pattern);
}
void
RpcServerMap::removeReservation(const char *name)
{
delete _reservations.remove(name);
}
} // namespace slobrok
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