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adaptai / platform /dbops /binaries /redis /src /tests /modules /subcommands.c
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#include "redismodule.h"
#define UNUSED(V) ((void) V)
int cmd_set(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
UNUSED(argv);
UNUSED(argc);
RedisModule_ReplyWithSimpleString(ctx, "OK");
return REDISMODULE_OK;
}
int cmd_get(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
UNUSED(argv);
if (argc > 4) /* For testing */
return RedisModule_WrongArity(ctx);
RedisModule_ReplyWithSimpleString(ctx, "OK");
return REDISMODULE_OK;
}
int cmd_get_fullname(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
UNUSED(argv);
UNUSED(argc);
const char *command_name = RedisModule_GetCurrentCommandName(ctx);
RedisModule_ReplyWithSimpleString(ctx, command_name);
return REDISMODULE_OK;
}
int RedisModule_OnLoad(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
REDISMODULE_NOT_USED(argv);
REDISMODULE_NOT_USED(argc);
if (RedisModule_Init(ctx, "subcommands", 1, REDISMODULE_APIVER_1) == REDISMODULE_ERR)
return REDISMODULE_ERR;
/* Module command names cannot contain special characters. */
RedisModule_Assert(RedisModule_CreateCommand(ctx,"subcommands.char\r",NULL,"",0,0,0) == REDISMODULE_ERR);
RedisModule_Assert(RedisModule_CreateCommand(ctx,"subcommands.char\n",NULL,"",0,0,0) == REDISMODULE_ERR);
RedisModule_Assert(RedisModule_CreateCommand(ctx,"subcommands.char ",NULL,"",0,0,0) == REDISMODULE_ERR);
if (RedisModule_CreateCommand(ctx,"subcommands.bitarray",NULL,"",0,0,0) == REDISMODULE_ERR)
return REDISMODULE_ERR;
RedisModuleCommand *parent = RedisModule_GetCommand(ctx,"subcommands.bitarray");
if (RedisModule_CreateSubcommand(parent,"set",cmd_set,"",0,0,0) == REDISMODULE_ERR)
return REDISMODULE_ERR;
/* Module subcommand names cannot contain special characters. */
RedisModule_Assert(RedisModule_CreateSubcommand(parent,"char|",cmd_set,"",0,0,0) == REDISMODULE_ERR);
RedisModule_Assert(RedisModule_CreateSubcommand(parent,"char@",cmd_set,"",0,0,0) == REDISMODULE_ERR);
RedisModule_Assert(RedisModule_CreateSubcommand(parent,"char=",cmd_set,"",0,0,0) == REDISMODULE_ERR);
RedisModuleCommand *subcmd = RedisModule_GetCommand(ctx,"subcommands.bitarray|set");
RedisModuleCommandInfo cmd_set_info = {
.version = REDISMODULE_COMMAND_INFO_VERSION,
.key_specs = (RedisModuleCommandKeySpec[]){
{
.flags = REDISMODULE_CMD_KEY_RW | REDISMODULE_CMD_KEY_UPDATE,
.begin_search_type = REDISMODULE_KSPEC_BS_INDEX,
.bs.index.pos = 1,
.find_keys_type = REDISMODULE_KSPEC_FK_RANGE,
.fk.range = {0,1,0}
},
{0}
}
};
if (RedisModule_SetCommandInfo(subcmd, &cmd_set_info) == REDISMODULE_ERR)
return REDISMODULE_ERR;
if (RedisModule_CreateSubcommand(parent,"get",cmd_get,"",0,0,0) == REDISMODULE_ERR)
return REDISMODULE_ERR;
subcmd = RedisModule_GetCommand(ctx,"subcommands.bitarray|get");
RedisModuleCommandInfo cmd_get_info = {
.version = REDISMODULE_COMMAND_INFO_VERSION,
.key_specs = (RedisModuleCommandKeySpec[]){
{
.flags = REDISMODULE_CMD_KEY_RO | REDISMODULE_CMD_KEY_ACCESS,
.begin_search_type = REDISMODULE_KSPEC_BS_INDEX,
.bs.index.pos = 1,
.find_keys_type = REDISMODULE_KSPEC_FK_RANGE,
.fk.range = {0,1,0}
},
{0}
}
};
if (RedisModule_SetCommandInfo(subcmd, &cmd_get_info) == REDISMODULE_ERR)
return REDISMODULE_ERR;
/* Get the name of the command currently running. */
if (RedisModule_CreateCommand(ctx,"subcommands.parent_get_fullname",cmd_get_fullname,"",0,0,0) == REDISMODULE_ERR)
return REDISMODULE_ERR;
/* Get the name of the subcommand currently running. */
if (RedisModule_CreateCommand(ctx,"subcommands.sub",NULL,"",0,0,0) == REDISMODULE_ERR)
return REDISMODULE_ERR;
RedisModuleCommand *fullname_parent = RedisModule_GetCommand(ctx,"subcommands.sub");
if (RedisModule_CreateSubcommand(fullname_parent,"get_fullname",cmd_get_fullname,"",0,0,0) == REDISMODULE_ERR)
return REDISMODULE_ERR;
/* Sanity */
/* Trying to create the same subcommand fails */
RedisModule_Assert(RedisModule_CreateSubcommand(parent,"get",NULL,"",0,0,0) == REDISMODULE_ERR);
/* Trying to create a sub-subcommand fails */
RedisModule_Assert(RedisModule_CreateSubcommand(subcmd,"get",NULL,"",0,0,0) == REDISMODULE_ERR);
return REDISMODULE_OK;
}