#!/usr/bin/python -u # # Tests global error handlers at the python level. # import libvirt import sys import os errno = None def handler(ctxt, err): global errno #print "handler(%s, %s)" % (ctxt, err) errno = err libvirt.registerErrorHandler(handler, 'context') conn = libvirt.openReadOnly(None) if conn == None: print 'Failed to open connection to the hypervisor' sys.exit(1) try: dom0 = conn.lookupByName("Does_not_exist") print 'strange found a Does_not_exist domain' sys.exit(1) except: pass del conn if errno == None: print 'failed to get an error' elif errno[0] == libvirt.VIR_ERR_NO_CONNECT or \ errno[0] == libvirt.VIR_ERR_INVALID_DOMAIN or \ errno[0] == libvirt.VIR_ERR_GET_FAILED: print "OK" else: print 'got unexpected error:', errno sys.exit(0) 'https://fedorapeople.org/cgit/anoopcs/public_git/glusterfs.git' title='glusterfs.git Git repository'/>
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/*
   Copyright (c) 2007-2012 Red Hat, Inc. <http://www.redhat.com>
   This file is part of GlusterFS.

   This file is licensed to you under your choice of the GNU Lesser
   General Public License, version 3 or any later version (LGPLv3 or
   later), or the GNU General Public License, version 2 (GPLv2), in all
   cases as published by the Free Software Foundation.
*/
#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <stdlib.h>
#include <signal.h>

#include "glusterfs.h"
#include "dict.h"
#include "event.h"
#include "defaults.h"

#include "rpc-clnt.h"
#include "protocol-common.h"
#include "glusterfsd-messages.h"
#include "glusterfs3.h"
#include "portmap-xdr.h"
#include "xdr-generic.h"

#include "glusterfsd.h"
#include "rpcsvc.h"
#include "cli1-xdr.h"
#include "statedump.h"
#include "syncop.h"
#include "xlator.h"
#include "syscall.h"
#include "monitoring.h"

static gf_boolean_t is_mgmt_rpc_reconnect = _gf_false;
int need_emancipate = 0;

int glusterfs_mgmt_pmap_signin (glusterfs_ctx_t *ctx);
int glusterfs_volfile_fetch (glusterfs_ctx_t *ctx);
int glusterfs_process_volfp (glusterfs_ctx_t *ctx, FILE *fp);
int glusterfs_graph_unknown_options (glusterfs_graph_t *graph);
int emancipate(glusterfs_ctx_t *ctx, int ret);

int
mgmt_cbk_spec (struct rpc_clnt *rpc, void *mydata, void *data)
{
        glusterfs_ctx_t *ctx = NULL;

        ctx = glusterfsd_ctx;
        gf_log ("mgmt", GF_LOG_INFO, "Volume file changed");

        glusterfs_volfile_fetch (ctx);
        return 0;
}


int
mgmt_cbk_event (struct rpc_clnt *rpc, void *mydata, void *data)
{
        return 0;
}

struct iobuf *
glusterfs_serialize_reply (rpcsvc_request_t *req, void *arg,
                           struct iovec *outmsg, xdrproc_t xdrproc)
{
        struct iobuf            *iob = NULL;
        ssize_t                  retlen = -1;
        ssize_t                  xdr_size = 0;

        /* First, get the io buffer into which the reply in arg will
         * be serialized.
         */
        xdr_size = xdr_sizeof (xdrproc, arg);
        iob = iobuf_get2 (req->svc->ctx->iobuf_pool, xdr_size);
        if (!iob) {
                gf_log (THIS->name, GF_LOG_ERROR, "Failed to get iobuf");
                goto ret;
        }

        iobuf_to_iovec (iob, outmsg);
        /* Use the given serializer to translate the give C structure in arg
         * to XDR format which will be written into the buffer in outmsg.
         */
        /* retlen is used to received the error since size_t is unsigned and we
         * need -1 for error notification during encoding.
         */
        retlen = xdr_serialize_generic (*outmsg, arg, xdrproc);
        if (retlen == -1) {
                gf_log (THIS->name, GF_LOG_ERROR, "Failed to encode message");
                goto ret;
        }

        outmsg->iov_len = retlen;
ret:
        if (retlen == -1) {
                iob = NULL;
        }

        return iob;
}

int
glusterfs_submit_reply (rpcsvc_request_t *req, void *arg,
                        struct iovec *payload, int payloadcount,
                        struct iobref *iobref, xdrproc_t xdrproc)
{
        struct iobuf           *iob        = NULL;
        int                     ret        = -1;
        struct iovec            rsp        = {0,};
        char                    new_iobref = 0;

        if (!req) {
                GF_ASSERT (req);
                goto out;
        }

        if (!iobref) {
                iobref = iobref_new ();
                if (!iobref) {
                        gf_log (THIS->name, GF_LOG_ERROR, "out of memory");
                        goto out;
                }

                new_iobref = 1;
        }

        iob = glusterfs_serialize_reply (req, arg, &rsp, xdrproc);
        if (!iob) {
                gf_log_callingfn (THIS->name, GF_LOG_ERROR, "Failed to serialize reply");
        } else {
                iobref_add (iobref, iob);
        }

        ret = rpcsvc_submit_generic (req, &rsp, 1, payload, payloadcount,
                                     iobref);

        /* Now that we've done our job of handing the message to the RPC layer
         * we can safely unref the iob in the hope that RPC layer must have
         * ref'ed the iob on receiving into the txlist.
         */
        if (ret == -1) {
                gf_log (THIS->name, GF_LOG_ERROR, "Reply submission failed");
                goto out;
        }

        ret = 0;
out:
        if (iob)
                iobuf_unref (iob);

        if (new_iobref && iobref)
                iobref_unref (iobref);

        return ret;
}

int
glusterfs_terminate_response_send (rpcsvc_request_t *req, int op_ret)
{
        gd1_mgmt_brick_op_rsp   rsp = {0,};
        dict_t                  *dict = NULL;
        int                     ret = 0;

        rsp.op_ret = op_ret;
        rsp.op_errno = 0;
        rsp.op_errstr = "";
        dict = dict_new ();

        if (dict)
                ret = dict_allocate_and_serialize (dict, &rsp.output.output_val,
                                                   &rsp.output.output_len);


        if (ret == 0)
                ret = glusterfs_submit_reply (req, &rsp, NULL, 0, NULL,
                                              (xdrproc_t)xdr_gd1_mgmt_brick_op_rsp);

        GF_FREE (rsp.output.output_val);
        if (dict)
                dict_unref (dict);
        return ret;
}

void
glusterfs_autoscale_threads (glusterfs_ctx_t *ctx, int incr)
{
        struct event_pool       *pool           = ctx->event_pool;

        pool->auto_thread_count += incr;
        (void) event_reconfigure_threads (pool, pool->eventthreadcount+incr);
}

int
glusterfs_handle_terminate (rpcsvc_request_t *req)
{
        gd1_mgmt_brick_op_req   xlator_req      = {0,};
        ssize_t                 ret;
        glusterfs_ctx_t         *ctx            = NULL;
        xlator_t                *top            = NULL;
        xlator_t                *victim         = NULL;
        xlator_list_t           **trav_p        = NULL;
        gf_boolean_t            lockflag        = _gf_false;

        ret = xdr_to_generic (req->msg[0], &xlator_req,
                              (xdrproc_t)xdr_gd1_mgmt_brick_op_req);
        if (ret < 0) {
                req->rpc_err = GARBAGE_ARGS;
                return -1;
        }
        ctx = glusterfsd_ctx;

        LOCK (&ctx->volfile_lock);
        {
                /* Find the xlator_list_t that points to our victim. */
                if (glusterfsd_ctx->active) {
                        top = glusterfsd_ctx->active->first;
                        for (trav_p = &top->children; *trav_p;
                                                    trav_p = &(*trav_p)->next) {
                                victim = (*trav_p)->xlator;
                                if (strcmp (victim->name, xlator_req.name) == 0) {
                                        break;
                                }
                        }
                }
        }