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Modules shared API: prevent unloading of used modules.

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This commit is contained in:
antirez 2018-12-20 17:31:55 +01:00
parent 6bb8cdaebe
commit 9403b3d7a3
1 changed files with 10 additions and 4 deletions
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14
src/module.c
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@ -4896,11 +4896,12 @@ int moduleUnload(sds name) {
if (module == NULL) {
errno = ENOENT;
return REDISMODULE_ERR;
}
if (listLength(module->types)) {
} else if (listLength(module->types)) {
errno = EBUSY;
return REDISMODULE_ERR;
} else if (listLength(module->usedby)) {
errno = EPERM;
return REDISMODULE_ERR;
}
moduleUnregisterCommands(module);
@ -4966,7 +4967,12 @@ NULL
errmsg = "no such module with that name";
break;
case EBUSY:
errmsg = "the module exports one or more module-side data types, can't unload";
errmsg = "the module exports one or more module-side data "
"types, can't unload";
break;
case EPERM:
errmsg = "the module exports APIs used by other modules. "
"Please unload them first and try again";
break;
default:
errmsg = "operation not possible.";