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#include "svc_rados.h"
#include "include/rados/librados.hpp"
#include "common/errno.h"
#include "osd/osd_types.h"
#define dout_subsys ceph_subsys_rgw
int RGWS_RADOS::create_instance(const string& conf, RGWServiceInstanceRef *instance)
{
instance->reset(new RGWSI_RADOS(this, cct));
return 0;
}
static int init_ioctx(CephContext *cct, librados::Rados *rados, const rgw_pool& pool, librados::IoCtx& ioctx, bool create)
{
int r = rados->ioctx_create(pool.name.c_str(), ioctx);
if (r == -ENOENT && create) {
r = rados->pool_create(pool.name.c_str());
if (r == -ERANGE) {
ldout(cct, 0)
<< __func__
<< " ERROR: librados::Rados::pool_create returned " << cpp_strerror(-r)
<< " (this can be due to a pool or placement group misconfiguration, e.g."
<< " pg_num < pgp_num or mon_max_pg_per_osd exceeded)"
<< dendl;
}
if (r < 0 && r != -EEXIST) {
return r;
}
r = rados->ioctx_create(pool.name.c_str(), ioctx);
if (r < 0) {
return r;
}
r = ioctx.application_enable(pg_pool_t::APPLICATION_NAME_RGW, false);
if (r < 0 && r != -EOPNOTSUPP) {
return r;
}
} else if (r < 0) {
return r;
}
if (!pool.ns.empty()) {
ioctx.set_namespace(pool.ns);
}
return 0;
}
int RGWSI_RADOS::init(const string& conf, map<string, RGWServiceInstanceRef>& deps)
{
auto handles = std::vector<librados::Rados>{static_cast<size_t>(cct->_conf->rgw_num_rados_handles)};
for (auto& r : handles) {
int ret = r.init_with_context(cct);
if (ret < 0) {
return ret;
}
ret = r.connect();
if (ret < 0) {
return ret;
}
}
return 0;
}
librados::Rados* RGWSI_RADOS::get_rados_handle()
{
if (rados.size() == 1) {
return &rados[0];
}
handle_lock.get_read();
pthread_t id = pthread_self();
std::map<pthread_t, int>:: iterator it = rados_map.find(id);
if (it != rados_map.end()) {
handle_lock.put_read();
return &rados[it->second];
}
handle_lock.put_read();
handle_lock.get_write();
const uint32_t handle = next_rados_handle;
rados_map[id] = handle;
if (++next_rados_handle == rados.size()) {
next_rados_handle = 0;
}
handle_lock.put_write();
return &rados[handle];
}
uint64_t RGWSI_RADOS::instance_id()
{
return get_rados_handle()->get_instance_id();
}
int RGWSI_RADOS::open_pool_ctx(const rgw_pool& pool, librados::IoCtx& io_ctx)
{
constexpr bool create = true; // create the pool if it doesn't exist
return init_ioctx(cct, get_rados_handle(), pool, io_ctx, create);
}
void RGWSI_RADOS::Obj::init(const rgw_raw_obj& obj)
{
ref.oid = obj.oid;
ref.key = obj.loc;
ref.pool = obj.pool;
}
int RGWSI_RADOS::Obj::open()
{
int r = rados_svc->open_pool_ctx(ref.pool, ref.ioctx);
if (r < 0)
return r;
ref.ioctx.locator_set_key(ref.key);
return 0;
}
int RGWSI_RADOS::Obj::operate(librados::ObjectWriteOperation *op)
{
return ref.ioctx.operate(ref.oid, op);
}
int RGWSI_RADOS::Obj::operate(librados::ObjectReadOperation *op, bufferlist *pbl)
{
return ref.ioctx.operate(ref.oid, op, pbl);
}
int RGWSI_RADOS::Obj::aio_operate(librados::AioCompletion *c, librados::ObjectWriteOperation *op)
{
return ref.ioctx.aio_operate(ref.oid, c, op);
}
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