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/*

* Copyright (c) 2006-Present, Redis Ltd.

* All rights reserved.

*

* Licensed under your choice of the Redis Source Available License 2.0

* (RSALv2); or (b) the Server Side Public License v1 (SSPLv1); or (c) the

* GNU Affero General Public License v3 (AGPLv3).

*/

#include <unistd.h>

#include <pthread.h>

#include "redismodule.h"

#include "debug.h"

#include "errors.h"

#include "version.h"

#include "globals.h"

#include "util/arr.h"

#include "cron/cron.h"

#include "query_ctx.h"

#include "index/indexer.h"

#include "redisearch_api.h"

#include "arithmetic/funcs.h"

#include "commands/commands.h"

#include "util/thpool/pools.h"

#include "graph/graphcontext.h"

#include "util/redis_version.h"

#include "ast/ast_validations.h"

#include "configuration/config.h"

#include "procedures/procedure.h"

#include "module_event_handlers.h"

#include "serializers/graphmeta_type.h"

#include "configuration/reconf_handler.h"

#include "serializers/graphcontext_type.h"

#include "arithmetic/arithmetic_expression.h"

// minimal supported Redis version

#define MIN_REDIS_VERION_MAJOR 6

#define MIN_REDIS_VERION_MINOR 2

#define MIN_REDIS_VERION_PATCH 0

static int _RegisterDataTypes(RedisModuleCtx *ctx) {

if(GraphContextType_Register(ctx) == REDISMODULE_ERR) {

printf("Failed to register GraphContext type\n");

return REDISMODULE_ERR;

}

if(GraphMetaType_Register(ctx) == REDISMODULE_ERR) {

printf("Failed to register GraphMeta type\n");

return REDISMODULE_ERR;

}

return REDISMODULE_OK;

}

// starts cron and register recurring tasks

static bool _Cron_Start(void) {

// start CRON

bool res = Cron_Start();

// register recurring tasks

Cron_AddRecurringTasks();

return res;

}

// print RedisGraph configuration

static void _Print_Config

(

RedisModuleCtx *ctx

) {

// TODO: consider adding Config_Print

int ompThreadCount;

Config_Option_get(Config_OPENMP_NTHREAD, &ompThreadCount);

RedisModule_Log(ctx, "notice", "Maximum number of OpenMP threads set to %d", ompThreadCount);

bool cmd_info_enabled = false;

if(Config_Option_get(Config_CMD_INFO, &cmd_info_enabled) && cmd_info_enabled) {

uint32_t info_max_query_count = 0;

Config_Option_get(Config_CMD_INFO_MAX_QUERY_COUNT, &info_max_query_count);

RedisModule_Log(ctx, "notice", "Query backlog size: %u", info_max_query_count);

}

}

static int GraphBLAS_Init(RedisModuleCtx *ctx) {

// GraphBLAS should use Redis allocator

GrB_Info res = GxB_init(GrB_NONBLOCKING, RedisModule_Alloc,

RedisModule_Calloc, RedisModule_Realloc, RedisModule_Free);

if(res != GrB_SUCCESS) {

RedisModule_Log(ctx, "warning", "Encountered error initializing GraphBLAS");

return REDISMODULE_ERR;

}

// all matrices in CSR format

GxB_set(GxB_FORMAT, GxB_BY_ROW);

return REDISMODULE_OK;

}

int RedisModule_OnLoad(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {

if(RedisModule_Init(ctx, "graph", REDISGRAPH_MODULE_VERSION,

REDISMODULE_APIVER_1) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

// initialize GraphBLAS

int res = GraphBLAS_Init(ctx);

if(res != REDISMODULE_OK) return res;

// validate minimum redis-server version

if(!Redis_Version_GreaterOrEqual(MIN_REDIS_VERION_MAJOR,

MIN_REDIS_VERION_MINOR, MIN_REDIS_VERION_PATCH)) {

RedisModule_Log(ctx, "warning", "RedisGraph requires redis-server version %d.%d.%d and up",

MIN_REDIS_VERION_MAJOR, MIN_REDIS_VERION_MINOR, MIN_REDIS_VERION_PATCH);

return REDISMODULE_ERR;

}

if(RediSearch_Init(ctx, REDISEARCH_INIT_LIBRARY) != REDISMODULE_OK) {

return REDISMODULE_ERR;

}

RedisModule_Log(ctx, "notice", "Starting up RedisGraph version %d.%d.%d.",

REDISGRAPH_VERSION_MAJOR, REDISGRAPH_VERSION_MINOR, REDISGRAPH_VERSION_PATCH);

Proc_Register(); // register procedures

AR_RegisterFuncs(); // register arithmetic functions

// set up the module's configurable variables,

// using user-defined values where provided

// register for config updates

Config_Subscribe_Changes(reconf_handler);

if(Config_Init(ctx, argv, argc) != REDISMODULE_OK) return REDISMODULE_ERR;

RegisterEventHandlers(ctx);

// create thread local storage keys for query and error contexts

if(!_Cron_Start()) return REDISMODULE_ERR;

if(!QueryCtx_Init()) return REDISMODULE_ERR;

if(!ErrorCtx_Init()) return REDISMODULE_ERR;

if(!ThreadPools_Init()) return REDISMODULE_ERR;

if(!Indexer_Init()) return REDISMODULE_ERR;

if(!AST_ValidationsMappingInit()) return REDISMODULE_ERR;

RedisModule_Log(ctx, "notice", "Thread pool created, using %d threads.",

ThreadPools_ReadersCount());

int ompThreadCount;

Config_Option_get(Config_OPENMP_NTHREAD, &ompThreadCount);

if(GxB_set(GxB_NTHREADS, ompThreadCount) != GrB_SUCCESS) {

RedisModule_Log(ctx, "warning", "Failed to set OpenMP thread count to %d", ompThreadCount);

return REDISMODULE_ERR;

}

// log configuration

_Print_Config(ctx);

if(_RegisterDataTypes(ctx) != REDISMODULE_OK) return REDISMODULE_ERR;

if(RedisModule_CreateCommand(ctx, "graph.QUERY", CommandDispatch, "write deny-oom", 1, 1,

1) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

if(RedisModule_CreateCommand(ctx, "graph.RO_QUERY", CommandDispatch, "readonly", 1, 1,

1) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

if(RedisModule_CreateCommand(ctx, "graph.DELETE", Graph_Delete, "write", 1, 1,

1) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

if(RedisModule_CreateCommand(ctx, "graph.EXPLAIN", CommandDispatch, "write deny-oom", 1, 1,

1) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

if(RedisModule_CreateCommand(ctx, "graph.PROFILE", CommandDispatch, "write deny-oom", 1, 1,

1) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

if(RedisModule_CreateCommand(ctx, "graph.BULK", Graph_BulkInsert, "write deny-oom", 1, 1,

1) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

if(RedisModule_CreateCommand(ctx, "graph.CONSTRAINT", Graph_Constraint, "write deny-oom", 2, 2,

1) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

if(RedisModule_CreateCommand(ctx, "graph.SLOWLOG", Graph_Slowlog, "readonly", 1, 1,

1) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

if(RedisModule_CreateCommand(ctx, "graph.CONFIG", Graph_Config, "readonly", 0, 0,

0) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

if(RedisModule_CreateCommand(ctx, "graph.LIST", Graph_List, "readonly", 0, 0,

0) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

if(RedisModule_CreateCommand(ctx, "graph.DEBUG", Graph_Debug, "readonly", 0, 0,

0) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

if(RedisModule_CreateCommand(ctx, "graph.INFO", Graph_Info, "readonly", 1, 1,

1) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

if(RedisModule_CreateCommand(ctx, "graph.EFFECT", Graph_Effect, "write", 1,

1, 1) == REDISMODULE_ERR) {

return REDISMODULE_ERR;

}

// set up global variables scoped to the entire module

Globals_Init();

setupCrashHandlers(ctx);

return REDISMODULE_OK;

}