/usr/include/mongo-client/mongo-sync-pool.h is in libmongo-client-dev 0.1.8-3.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | /* mongo-sync-pool.h - libmongo-client connection pool API
* Copyright 2011, 2012 Gergely Nagy <algernon@balabit.hu>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/** @file src/mongo-sync-pool.h
* MongoDB connection pool API public header.
*
* @addtogroup mongo_sync
* @{
*/
#ifndef LIBMONGO_POOL_H
#define LIBMONGO_POOL_H 1
#include <mongo-sync.h>
#include <glib.h>
G_BEGIN_DECLS
/** @defgroup mongo_sync_pool_api Mongo Sync Pool API
*
* These commands implement connection pooling over the mongo_sync
* family of commands.
*
* Once a pool is set up, one can pick and return connections at one's
* leisure. Picking is done in a round-robin fashion (excluding
* connections that have been picked but not returned yet).
*
* @addtogroup mongo_sync_pool_api
* @{
*/
/** Opaque synchronous connection pool object.
*
* This represents a single connection within the pool.
*/
typedef struct _mongo_sync_pool_connection mongo_sync_pool_connection;
/** Opaque synchronous pool object.
*
* This is the entire connection pool, with all its meta-data.
*/
typedef struct _mongo_sync_pool mongo_sync_pool;
/** Create a new synchronous connection pool.
*
* Sets up a connection pool towards a given MongoDB server, and all
* its secondaries (if any).
*
* @param host is the address of the server.
* @param port is the port to connect to.
* @param nmasters is the number of connections to make towards the
* master.
* @param nslaves is the number of connections to make towards the
* secondaries.
*
* @note Either @a nmasters or @a nslaves can be zero, but not both at
* the same time.
*
* @note The @a host MUST be a master, otherwise the function will
* return an error.
*
* @returns A newly allocated mongo_sync_pool object, or NULL on
* error. It is the responsibility of the caller to close and free the
* pool when appropriate.
*/
mongo_sync_pool *mongo_sync_pool_new (const gchar *host,
gint port,
gint nmasters, gint nslaves);
/** Close and free a synchronous connection pool.
*
* @param pool is the pool to shut down.
*
* @note The object will be freed, and shall not be used afterwards!
*/
void mongo_sync_pool_free (mongo_sync_pool *pool);
/** Pick a connection from a synchronous connection pool.
*
* Based on given preferences, selects a free connection object from
* the pool, and returns it.
*
* @param pool is the pool to select from.
* @param want_master flags whether the caller wants a master connection,
* or secondaries are acceptable too.
*
* @note For write operations, always select a master!
*
* @returns A connection object from the pool.
*
* @note The returned object can be safely casted to
* mongo_sync_connection, and passed to any of the mongo_sync family
* of commands. Do note however, that one shall not close or otherwise
* free a connection object returned by this function.
*/
mongo_sync_pool_connection *mongo_sync_pool_pick (mongo_sync_pool *pool,
gboolean want_master);
/** Return a connection to the synchronous connection pool.
*
* Once one is not using a connection anymore, it should be returned
* to the pool using this function.
*
* @param pool is the pool to return to.
* @param conn is the connection to return.
*
* @returns TRUE on success, FALSE otherwise.
*
* @note The returned connection should not be used afterwards.
*/
gboolean mongo_sync_pool_return (mongo_sync_pool *pool,
mongo_sync_pool_connection *conn);
/** @} */
/** @} */
G_END_DECLS
#endif
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