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MXS-1840 Compile all routers as C++

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Minimal changes, only what is needed in order to make it compile.
This commit is contained in:
Johan Wikman
2018-05-03 15:53:17 +03:00
parent 10b2b4ac37
commit 1f6cc6db8a
39 changed files with 476 additions and 427 deletions
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312
server/modules/routing/debugcli/debugcli.cc Normal file
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/*
* Copyright (c) 2016 MariaDB Corporation Ab
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
*
* Change Date: 2020-01-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2 or later of the General
* Public License.
*/
/**
* @file debugcli.c - A "routing module" that in fact merely gives
* access to debug commands within the gateway
*
* @verbatim
* Revision History
*
* Date Who Description
* 18/06/13 Mark Riddoch Initial implementation
*
* @endverbatim
*/
#define MXS_MODULE_NAME "debugcli"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <maxscale/service.h>
#include <maxscale/session.h>
#include <maxscale/router.h>
#include <maxscale/modinfo.h>
#include <maxscale/atomic.h>
#include <maxscale/spinlock.h>
#include <maxscale/dcb.h>
#include <maxscale/alloc.h>
#include <maxscale/poll.h>
#include <debugcli.h>
#include <maxscale/log_manager.h>
/* The router entry points */
static MXS_ROUTER *createInstance(SERVICE *service, char **options);
static MXS_ROUTER_SESSION *newSession(MXS_ROUTER *instance, MXS_SESSION *session);
static void closeSession(MXS_ROUTER *instance, MXS_ROUTER_SESSION *router_session);
static void freeSession(MXS_ROUTER *instance, MXS_ROUTER_SESSION *router_session);
static int execute(MXS_ROUTER *instance, MXS_ROUTER_SESSION *router_session, GWBUF *queue);
static void diagnostics(MXS_ROUTER *instance, DCB *dcb);
static json_t* diagnostics_json(const MXS_ROUTER *instance);
static uint64_t getCapabilities(MXS_ROUTER* instance);
extern int execute_cmd(CLI_SESSION *cli);
static SPINLOCK instlock;
static CLI_INSTANCE *instances;
/**
* The module entry point routine. It is this routine that
* must populate the structure that is referred to as the
* "module object", this is a structure with the set of
* external entry points for this module.
*
* @return The module object
*/
extern "C" MXS_MODULE* MXS_CREATE_MODULE()
{
MXS_NOTICE("Initialise debug CLI router module.");
spinlock_init(&instlock);
instances = NULL;
static MXS_ROUTER_OBJECT MyObject =
{
createInstance,
newSession,
closeSession,
freeSession,
execute,
diagnostics,
diagnostics_json,
NULL,
NULL,
getCapabilities,
NULL
};
static MXS_MODULE info =
{
MXS_MODULE_API_ROUTER,
MXS_MODULE_GA,
MXS_ROUTER_VERSION,
"The debug user interface",
"V1.1.1",
RCAP_TYPE_NO_AUTH,
&MyObject,
NULL, /* Process init. */
NULL, /* Process finish. */
NULL, /* Thread init. */
NULL, /* Thread finish. */
{
{MXS_END_MODULE_PARAMS}
}
};
return &info;
}
/**
* Create an instance of the router for a particular service
* within the gateway.
*
* @param service The service this router is being create for
* @param options Any array of options for the query router
*
* @return The instance data for this new instance
*/
static MXS_ROUTER *
createInstance(SERVICE *service, char **options)
{
CLI_INSTANCE *inst;
int i;
if ((inst = static_cast<CLI_INSTANCE*>(MXS_MALLOC(sizeof(CLI_INSTANCE)))) == NULL)
{
return NULL;
}
inst->service = service;
spinlock_init(&inst->lock);
inst->sessions = NULL;
/*
* We have completed the creation of the instance data, so now
* insert this router instance into the linked list of routers
* that have been created with this module.
*/
spinlock_acquire(&instlock);
inst->next = instances;
instances = inst;
spinlock_release(&instlock);
return (MXS_ROUTER *)inst;
}
/**
* Associate a new session with this instance of the router.
*
* @param instance The router instance data
* @param session The session itself
* @return Session specific data for this session
*/
static MXS_ROUTER_SESSION *
newSession(MXS_ROUTER *instance, MXS_SESSION *session)
{
CLI_INSTANCE *inst = (CLI_INSTANCE *)instance;
CLI_SESSION *client;
if ((client = (CLI_SESSION *)MXS_MALLOC(sizeof(CLI_SESSION))) == NULL)
{
return NULL;
}
client->session = session;
memset(client->cmdbuf, 0, 80);
spinlock_acquire(&inst->lock);
client->next = inst->sessions;
inst->sessions = client;
spinlock_release(&inst->lock);
session->state = SESSION_STATE_READY;
dcb_printf(session->client_dcb, "Welcome to the MariaDB Corporation MaxScale Debug Interface.\n");
dcb_printf(session->client_dcb, "Type help for a list of available commands.\n\n");
return reinterpret_cast<MXS_ROUTER_SESSION*>(client);
}
/**
* Close a session with the router, this is the mechanism
* by which a router may cleanup data structure etc.
*
* @param instance The router instance data
* @param router_session The session being closed
*/
static void
closeSession(MXS_ROUTER *instance, MXS_ROUTER_SESSION *router_session)
{
CLI_INSTANCE *inst = (CLI_INSTANCE *)instance;
CLI_SESSION *session = (CLI_SESSION *)router_session;
spinlock_acquire(&inst->lock);
if (inst->sessions == session)
{
inst->sessions = session->next;
}
else
{
CLI_SESSION *ptr = inst->sessions;
while (ptr && ptr->next != session)
{
ptr = ptr->next;
}
if (ptr)
{
ptr->next = session->next;
}
}
spinlock_release(&inst->lock);
/**
* Router session is freed in session.c:session_close, when session who
* owns it, is freed.
*/
}
/**
* Free a debugcli session
*
* @param router_instance The router session
* @param router_client_session The router session as returned from newSession
*/
static void freeSession(MXS_ROUTER* router_instance,
MXS_ROUTER_SESSION* router_client_session)
{
MXS_FREE(router_client_session);
return;
}
/**
* We have data from the client, we must route it to the backend.
* This is simply a case of sending it to the connection that was
* chosen when we started the client session.
*
* @param instance The router instance
* @param router_session The router session returned from the newSession call
* @param queue The queue of data buffers to route
* @return The number of bytes sent
*/
static int
execute(MXS_ROUTER *instance, MXS_ROUTER_SESSION *router_session, GWBUF *queue)
{
CLI_SESSION *session = (CLI_SESSION *)router_session;
char *cmdbuf = session->cmdbuf;
int cmdlen = 0;
*cmdbuf = 0;
/* Extract the characters */
while (queue && (cmdlen < CMDBUFLEN - 1))
{
const char* data = (char*)GWBUF_DATA(queue);
int len = GWBUF_LENGTH(queue);
int n = MXS_MIN(len, CMDBUFLEN - cmdlen - 1);
if (n != len)
{
MXS_WARNING("Too long user command truncated.");
}
strncat(cmdbuf, data, n);
cmdlen += n;
cmdbuf += n;
queue = gwbuf_consume(queue, GWBUF_LENGTH(queue));
}
if (strrchr(session->cmdbuf, '\n'))
{
if (execute_cmd(session))
{
dcb_printf(session->session->client_dcb, "MaxScale> ");
}
else
{
dcb_close(session->session->client_dcb);
}
}
return 1;
}
/**
* Display router diagnostics
*
* @param instance Instance of the router
* @param dcb DCB to send diagnostics to
*/
static void
diagnostics(MXS_ROUTER *instance, DCB *dcb)
{
return; /* Nothing to do currently */
}
/**
* Display router diagnostics
*
* @param instance Instance of the router
* @param dcb DCB to send diagnostics to
*/
static json_t* diagnostics_json(const MXS_ROUTER *instance)
{
return NULL;
}
static uint64_t getCapabilities(MXS_ROUTER* instance)
{
return RCAP_TYPE_NONE;
}