[sr-dev] git:master:aac6c77c: dispatcher: added rpc command dispatcher.hash

Module: kamailio Branch: master Commit: aac6c77cac36ea28897fcec539d750e8bf652d55 URL: https://github.com/kamailio/kamailio/commit/aac6c77cac36ea28897fcec539d750e… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2020-05-20T21:33:17+02:00 dispatcher: added rpc command dispatcher.hash - prototype: dispatcher.hash nslots val1 [val2] - compute the hash id of the value and do modulo operation if first parameter is not 0 - val2 is optional --- Modified: src/modules/dispatcher/dispatch.h Modified: src/modules/dispatcher/dispatcher.c --- Diff: https://github.com/kamailio/kamailio/commit/aac6c77cac36ea28897fcec539d750e… Patch: https://github.com/kamailio/kamailio/commit/aac6c77cac36ea28897fcec539d750e… --- diff --git a/src/modules/dispatcher/dispatch.h b/src/modules/dispatcher/dispatch.h index 6c167a9551..59937b9994 100644 --- a/src/modules/dispatcher/dispatch.h +++ b/src/modules/dispatcher/dispatch.h @@ -271,5 +271,6 @@ void ds_avl_destroy(ds_set_t **node); int ds_manage_routes(sip_msg_t *msg, ds_select_state_t *rstate); ds_rctx_t* ds_get_rctx(void); +unsigned int ds_get_hash(str *x, str *y); #endif diff --git a/src/modules/dispatcher/dispatcher.c b/src/modules/dispatcher/dispatcher.c index 6ac01bbd2a..9bd51a2544 100644 --- a/src/modules/dispatcher/dispatcher.c +++ b/src/modules/dispatcher/dispatcher.c @@ -1816,6 +1816,49 @@ static void dispatcher_rpc_remove(rpc_t *rpc, void *ctx) return; } +static const char *dispatcher_rpc_hash_doc[2] = { + "Compute the hash if the values", 0}; + + +/* + * RPC command to compute the hash of the values + */ +static void dispatcher_rpc_hash(rpc_t *rpc, void *ctx) +{ + int n = 0; + unsigned int hashid = 0; + int nslots = 0; + str val1 = STR_NULL; + str val2 = STR_NULL; + void *th; + + n = rpc->scan(ctx, "dS*S", &nslots, &val1, &val2); + if(n < 2) { + rpc->fault(ctx, 500, "Invalid Parameters"); + return; + } + if(n==2) { + val2.s = NULL; + val2.s = 0; + } + + hashid = ds_get_hash(&val1, &val2); + + /* add entry node */ + if(rpc->add(ctx, "{", &th) < 0) { + rpc->fault(ctx, 500, "Internal error root reply"); + return; + } + if(rpc->struct_add(th, "uu", "hashid", hashid, + "slot", (nslots>0)?(hashid%nslots):0) + < 0) { + rpc->fault(ctx, 500, "Internal error reply structure"); + return; + } + + return; +} + /* clang-format off */ rpc_export_t dispatcher_rpc_cmds[] = { {"dispatcher.reload", dispatcher_rpc_reload, @@ -1830,6 +1873,8 @@ rpc_export_t dispatcher_rpc_cmds[] = { dispatcher_rpc_add_doc, 0}, {"dispatcher.remove", dispatcher_rpc_remove, dispatcher_rpc_remove_doc, 0}, + {"dispatcher.hash", dispatcher_rpc_hash, + dispatcher_rpc_hash_doc, 0}, {0, 0, 0, 0} }; /* clang-format on */