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redict/tests/modules/testrdb.c
Drew DeVault 03d144a452 tests/modules: fix module tests 
Replaces Redis => Redict API

References: https://codeberg.org/redict/redict/issues/21
Signed-off-by: Drew DeVault <sir@cmpwn.com>
2024-03-25 12:42:30 +01:00

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// SPDX-FileCopyrightText: 2024 Redict Contributors
// SPDX-FileCopyrightText: 2024 Salvatore Sanfilippo <antirez at gmail dot com>
//
// SPDX-License-Identifier: BSD-3-Clause
// SPDX-License-Identifier: LGPL-3.0-only
#include "redictmodule.h"
#include <string.h>
#include <assert.h>
/* Module configuration, save aux or not? */
#define CONF_AUX_OPTION_NO_AUX 0
#define CONF_AUX_OPTION_SAVE2 1 << 0
#define CONF_AUX_OPTION_BEFORE_KEYSPACE 1 << 1
#define CONF_AUX_OPTION_AFTER_KEYSPACE 1 << 2
#define CONF_AUX_OPTION_NO_DATA 1 << 3
long long conf_aux_count = 0;
/* Registered type */
RedictModuleType *testrdb_type = NULL;
/* Global values to store and persist to aux */
RedictModuleString *before_str = NULL;
RedictModuleString *after_str = NULL;
/* Global values used to keep aux from db being loaded (in case of async_loading) */
RedictModuleString *before_str_temp = NULL;
RedictModuleString *after_str_temp = NULL;
/* Indicates whether there is an async replication in progress.
* We control this value from RedictModuleEvent_ReplAsyncLoad events. */
int async_loading = 0;
int n_aux_load_called = 0;
void replAsyncLoadCallback(RedictModuleCtx *ctx, RedictModuleEvent e, uint64_t sub, void *data)
{
REDICTMODULE_NOT_USED(e);
REDICTMODULE_NOT_USED(data);
switch (sub) {
case REDICTMODULE_SUBEVENT_REPL_ASYNC_LOAD_STARTED:
assert(async_loading == 0);
async_loading = 1;
break;
case REDICTMODULE_SUBEVENT_REPL_ASYNC_LOAD_ABORTED:
/* Discard temp aux */
if (before_str_temp)
RedictModule_FreeString(ctx, before_str_temp);
if (after_str_temp)
RedictModule_FreeString(ctx, after_str_temp);
before_str_temp = NULL;
after_str_temp = NULL;
async_loading = 0;
break;
case REDICTMODULE_SUBEVENT_REPL_ASYNC_LOAD_COMPLETED:
if (before_str)
RedictModule_FreeString(ctx, before_str);
if (after_str)
RedictModule_FreeString(ctx, after_str);
before_str = before_str_temp;
after_str = after_str_temp;
before_str_temp = NULL;
after_str_temp = NULL;
async_loading = 0;
break;
default:
assert(0);
}
}
void *testrdb_type_load(RedictModuleIO *rdb, int encver) {
int count = RedictModule_LoadSigned(rdb);
RedictModuleString *str = RedictModule_LoadString(rdb);
float f = RedictModule_LoadFloat(rdb);
long double ld = RedictModule_LoadLongDouble(rdb);
if (RedictModule_IsIOError(rdb)) {
RedictModuleCtx *ctx = RedictModule_GetContextFromIO(rdb);
if (str)
RedictModule_FreeString(ctx, str);
return NULL;
}
/* Using the values only after checking for io errors. */
assert(count==1);
assert(encver==1);
assert(f==1.5f);
assert(ld==0.333333333333333333L);
return str;
}
void testrdb_type_save(RedictModuleIO *rdb, void *value) {
RedictModuleString *str = (RedictModuleString*)value;
RedictModule_SaveSigned(rdb, 1);
RedictModule_SaveString(rdb, str);
RedictModule_SaveFloat(rdb, 1.5);
RedictModule_SaveLongDouble(rdb, 0.333333333333333333L);
}
void testrdb_aux_save(RedictModuleIO *rdb, int when) {
if (!(conf_aux_count & CONF_AUX_OPTION_BEFORE_KEYSPACE)) assert(when == REDICTMODULE_AUX_AFTER_RDB);
if (!(conf_aux_count & CONF_AUX_OPTION_AFTER_KEYSPACE)) assert(when == REDICTMODULE_AUX_BEFORE_RDB);
assert(conf_aux_count!=CONF_AUX_OPTION_NO_AUX);
if (when == REDICTMODULE_AUX_BEFORE_RDB) {
if (before_str) {
RedictModule_SaveSigned(rdb, 1);
RedictModule_SaveString(rdb, before_str);
} else {
RedictModule_SaveSigned(rdb, 0);
}
} else {
if (after_str) {
RedictModule_SaveSigned(rdb, 1);
RedictModule_SaveString(rdb, after_str);
} else {
RedictModule_SaveSigned(rdb, 0);
}
}
}
int testrdb_aux_load(RedictModuleIO *rdb, int encver, int when) {
assert(encver == 1);
if (!(conf_aux_count & CONF_AUX_OPTION_BEFORE_KEYSPACE)) assert(when == REDICTMODULE_AUX_AFTER_RDB);
if (!(conf_aux_count & CONF_AUX_OPTION_AFTER_KEYSPACE)) assert(when == REDICTMODULE_AUX_BEFORE_RDB);
assert(conf_aux_count!=CONF_AUX_OPTION_NO_AUX);
RedictModuleCtx *ctx = RedictModule_GetContextFromIO(rdb);
if (when == REDICTMODULE_AUX_BEFORE_RDB) {
if (async_loading == 0) {
if (before_str)
RedictModule_FreeString(ctx, before_str);
before_str = NULL;
int count = RedictModule_LoadSigned(rdb);
if (RedictModule_IsIOError(rdb))
return REDICTMODULE_ERR;
if (count)
before_str = RedictModule_LoadString(rdb);
} else {
if (before_str_temp)
RedictModule_FreeString(ctx, before_str_temp);
before_str_temp = NULL;
int count = RedictModule_LoadSigned(rdb);
if (RedictModule_IsIOError(rdb))
return REDICTMODULE_ERR;
if (count)
before_str_temp = RedictModule_LoadString(rdb);
}
} else {
if (async_loading == 0) {
if (after_str)
RedictModule_FreeString(ctx, after_str);
after_str = NULL;
int count = RedictModule_LoadSigned(rdb);
if (RedictModule_IsIOError(rdb))
return REDICTMODULE_ERR;
if (count)
after_str = RedictModule_LoadString(rdb);
} else {
if (after_str_temp)
RedictModule_FreeString(ctx, after_str_temp);
after_str_temp = NULL;
int count = RedictModule_LoadSigned(rdb);
if (RedictModule_IsIOError(rdb))
return REDICTMODULE_ERR;
if (count)
after_str_temp = RedictModule_LoadString(rdb);
}
}
if (RedictModule_IsIOError(rdb))
return REDICTMODULE_ERR;
return REDICTMODULE_OK;
}
void testrdb_type_free(void *value) {
if (value)
RedictModule_FreeString(NULL, (RedictModuleString*)value);
}
int testrdb_set_before(RedictModuleCtx *ctx, RedictModuleString **argv, int argc)
{
if (argc != 2) {
RedictModule_WrongArity(ctx);
return REDICTMODULE_OK;
}
if (before_str)
RedictModule_FreeString(ctx, before_str);
before_str = argv[1];
RedictModule_RetainString(ctx, argv[1]);
RedictModule_ReplyWithLongLong(ctx, 1);
return REDICTMODULE_OK;
}
int testrdb_get_before(RedictModuleCtx *ctx, RedictModuleString **argv, int argc)
{
REDICTMODULE_NOT_USED(argv);
if (argc != 1){
RedictModule_WrongArity(ctx);
return REDICTMODULE_OK;
}
if (before_str)
RedictModule_ReplyWithString(ctx, before_str);
else
RedictModule_ReplyWithStringBuffer(ctx, "", 0);
return REDICTMODULE_OK;
}
/* For purpose of testing module events, expose variable state during async_loading. */
int testrdb_async_loading_get_before(RedictModuleCtx *ctx, RedictModuleString **argv, int argc)
{
REDICTMODULE_NOT_USED(argv);
if (argc != 1){
RedictModule_WrongArity(ctx);
return REDICTMODULE_OK;
}
if (before_str_temp)
RedictModule_ReplyWithString(ctx, before_str_temp);
else
RedictModule_ReplyWithStringBuffer(ctx, "", 0);
return REDICTMODULE_OK;
}
int testrdb_set_after(RedictModuleCtx *ctx, RedictModuleString **argv, int argc)
{
if (argc != 2){
RedictModule_WrongArity(ctx);
return REDICTMODULE_OK;
}
if (after_str)
RedictModule_FreeString(ctx, after_str);
after_str = argv[1];
RedictModule_RetainString(ctx, argv[1]);
RedictModule_ReplyWithLongLong(ctx, 1);
return REDICTMODULE_OK;
}
int testrdb_get_after(RedictModuleCtx *ctx, RedictModuleString **argv, int argc)
{
REDICTMODULE_NOT_USED(argv);
if (argc != 1){
RedictModule_WrongArity(ctx);
return REDICTMODULE_OK;
}
if (after_str)
RedictModule_ReplyWithString(ctx, after_str);
else
RedictModule_ReplyWithStringBuffer(ctx, "", 0);
return REDICTMODULE_OK;
}
int testrdb_set_key(RedictModuleCtx *ctx, RedictModuleString **argv, int argc)
{
if (argc != 3){
RedictModule_WrongArity(ctx);
return REDICTMODULE_OK;
}
RedictModuleKey *key = RedictModule_OpenKey(ctx, argv[1], REDICTMODULE_WRITE);
RedictModuleString *str = RedictModule_ModuleTypeGetValue(key);
if (str)
RedictModule_FreeString(ctx, str);
RedictModule_ModuleTypeSetValue(key, testrdb_type, argv[2]);
RedictModule_RetainString(ctx, argv[2]);
RedictModule_CloseKey(key);
RedictModule_ReplyWithLongLong(ctx, 1);
return REDICTMODULE_OK;
}
int testrdb_get_key(RedictModuleCtx *ctx, RedictModuleString **argv, int argc)
{
if (argc != 2){
RedictModule_WrongArity(ctx);
return REDICTMODULE_OK;
}
RedictModuleKey *key = RedictModule_OpenKey(ctx, argv[1], REDICTMODULE_READ);
RedictModuleString *str = RedictModule_ModuleTypeGetValue(key);
RedictModule_CloseKey(key);
RedictModule_ReplyWithString(ctx, str);
return REDICTMODULE_OK;
}
int testrdb_get_n_aux_load_called(RedictModuleCtx *ctx, RedictModuleString **argv, int argc)
{
REDICTMODULE_NOT_USED(ctx);
REDICTMODULE_NOT_USED(argv);
REDICTMODULE_NOT_USED(argc);
RedictModule_ReplyWithLongLong(ctx, n_aux_load_called);
return REDICTMODULE_OK;
}
int test2rdb_aux_load(RedictModuleIO *rdb, int encver, int when) {
REDICTMODULE_NOT_USED(rdb);
REDICTMODULE_NOT_USED(encver);
REDICTMODULE_NOT_USED(when);
n_aux_load_called++;
return REDICTMODULE_OK;
}
void test2rdb_aux_save(RedictModuleIO *rdb, int when) {
REDICTMODULE_NOT_USED(rdb);
REDICTMODULE_NOT_USED(when);
}
int RedictModule_OnLoad(RedictModuleCtx *ctx, RedictModuleString **argv, int argc) {
REDICTMODULE_NOT_USED(argv);
REDICTMODULE_NOT_USED(argc);
if (RedictModule_Init(ctx,"testrdb",1,REDICTMODULE_APIVER_1) == REDICTMODULE_ERR)
return REDICTMODULE_ERR;
RedictModule_SetModuleOptions(ctx, REDICTMODULE_OPTIONS_HANDLE_IO_ERRORS | REDICTMODULE_OPTIONS_HANDLE_REPL_ASYNC_LOAD);
if (argc > 0)
RedictModule_StringToLongLong(argv[0], &conf_aux_count);
if (conf_aux_count==CONF_AUX_OPTION_NO_AUX) {
RedictModuleTypeMethods datatype_methods = {
.version = 1,
.rdb_load = testrdb_type_load,
.rdb_save = testrdb_type_save,
.aof_rewrite = NULL,
.digest = NULL,
.free = testrdb_type_free,
};
testrdb_type = RedictModule_CreateDataType(ctx, "test__rdb", 1, &datatype_methods);
if (testrdb_type == NULL)
return REDICTMODULE_ERR;
} else if (!(conf_aux_count & CONF_AUX_OPTION_NO_DATA)) {
RedictModuleTypeMethods datatype_methods = {
.version = REDICTMODULE_TYPE_METHOD_VERSION,
.rdb_load = testrdb_type_load,
.rdb_save = testrdb_type_save,
.aof_rewrite = NULL,
.digest = NULL,
.free = testrdb_type_free,
.aux_load = testrdb_aux_load,
.aux_save = testrdb_aux_save,
.aux_save_triggers = ((conf_aux_count & CONF_AUX_OPTION_BEFORE_KEYSPACE) ? REDICTMODULE_AUX_BEFORE_RDB : 0) |
((conf_aux_count & CONF_AUX_OPTION_AFTER_KEYSPACE) ? REDICTMODULE_AUX_AFTER_RDB : 0)
};
if (conf_aux_count & CONF_AUX_OPTION_SAVE2) {
datatype_methods.aux_save2 = testrdb_aux_save;
}
testrdb_type = RedictModule_CreateDataType(ctx, "test__rdb", 1, &datatype_methods);
if (testrdb_type == NULL)
return REDICTMODULE_ERR;
} else {
/* Used to verify that aux_save2 api without any data, saves nothing to the RDB. */
RedictModuleTypeMethods datatype_methods = {
.version = REDICTMODULE_TYPE_METHOD_VERSION,
.aux_load = test2rdb_aux_load,
.aux_save = test2rdb_aux_save,
.aux_save_triggers = ((conf_aux_count & CONF_AUX_OPTION_BEFORE_KEYSPACE) ? REDICTMODULE_AUX_BEFORE_RDB : 0) |
((conf_aux_count & CONF_AUX_OPTION_AFTER_KEYSPACE) ? REDICTMODULE_AUX_AFTER_RDB : 0)
};
if (conf_aux_count & CONF_AUX_OPTION_SAVE2) {
datatype_methods.aux_save2 = test2rdb_aux_save;
}
RedictModule_CreateDataType(ctx, "test__rdb", 1, &datatype_methods);
}
if (RedictModule_CreateCommand(ctx,"testrdb.set.before", testrdb_set_before,"deny-oom",0,0,0) == REDICTMODULE_ERR)
return REDICTMODULE_ERR;
if (RedictModule_CreateCommand(ctx,"testrdb.get.before", testrdb_get_before,"",0,0,0) == REDICTMODULE_ERR)
return REDICTMODULE_ERR;
if (RedictModule_CreateCommand(ctx,"testrdb.async_loading.get.before", testrdb_async_loading_get_before,"",0,0,0) == REDICTMODULE_ERR)
return REDICTMODULE_ERR;
if (RedictModule_CreateCommand(ctx,"testrdb.set.after", testrdb_set_after,"deny-oom",0,0,0) == REDICTMODULE_ERR)
return REDICTMODULE_ERR;
if (RedictModule_CreateCommand(ctx,"testrdb.get.after", testrdb_get_after,"",0,0,0) == REDICTMODULE_ERR)
return REDICTMODULE_ERR;
if (RedictModule_CreateCommand(ctx,"testrdb.set.key", testrdb_set_key,"deny-oom",1,1,1) == REDICTMODULE_ERR)
return REDICTMODULE_ERR;
if (RedictModule_CreateCommand(ctx,"testrdb.get.key", testrdb_get_key,"",1,1,1) == REDICTMODULE_ERR)
return REDICTMODULE_ERR;
if (RedictModule_CreateCommand(ctx,"testrdb.get.n_aux_load_called", testrdb_get_n_aux_load_called,"",1,1,1) == REDICTMODULE_ERR)
return REDICTMODULE_ERR;
RedictModule_SubscribeToServerEvent(ctx,
RedictModuleEvent_ReplAsyncLoad, replAsyncLoadCallback);
return REDICTMODULE_OK;
}
int RedictModule_OnUnload(RedictModuleCtx *ctx) {
if (before_str)
RedictModule_FreeString(ctx, before_str);
if (after_str)
RedictModule_FreeString(ctx, after_str);
if (before_str_temp)
RedictModule_FreeString(ctx, before_str_temp);
if (after_str_temp)
RedictModule_FreeString(ctx, after_str_temp);
return REDICTMODULE_OK;
}
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