mirror of
https://github.com/zeromq/libzmq.git
synced 2025-01-07 12:57:40 +08:00
127 lines
3.7 KiB
C++
Executable File
127 lines
3.7 KiB
C++
Executable File
/*
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Copyright (c) 2007-2010 iMatix Corporation
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This file is part of 0MQ.
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0MQ is free software; you can redistribute it and/or modify it under
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the terms of the Lesser GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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Lesser GNU General Public License for more details.
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You should have received a copy of the Lesser GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <assert.h>
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#include <errno.h>
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#include "../c/zmq.h"
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#include "org_zmq_Poller.h"
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static void *fetch_socket (JNIEnv *env, jobject socket);
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JNIEXPORT jlong JNICALL Java_org_zmq_Poller_run_1poll (JNIEnv *env,
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jobject obj,
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jint count,
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jobjectArray socket_0mq,
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jshortArray event_0mq,
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jshortArray revent_0mq,
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jlong timeout)
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{
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int ls = (int) count;
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if (ls <= 0)
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return 0;
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int ls_0mq = 0;
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int le_0mq = 0;
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int lr_0mq = 0;
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if (socket_0mq)
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ls_0mq = env->GetArrayLength (socket_0mq);
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if (event_0mq)
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le_0mq = env->GetArrayLength (event_0mq);
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if (revent_0mq)
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lr_0mq = env->GetArrayLength (revent_0mq);
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if (ls > ls_0mq || ls > le_0mq || ls > ls_0mq)
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return 0;
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zmq_pollitem_t *pitem = new zmq_pollitem_t [ls];
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short pc = 0;
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int rc = 0;
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// Add 0MQ sockets.
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if (ls_0mq > 0) {
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jshort *e_0mq = env->GetShortArrayElements (event_0mq, 0);
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if (e_0mq != NULL) {
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for (int i = 0; i < ls_0mq; ++i) {
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jobject s_0mq = env->GetObjectArrayElement (socket_0mq, i);
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if (!s_0mq)
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continue;
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void *s = fetch_socket (env, s_0mq);
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if (!s)
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continue;
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pitem [pc].socket = s;
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pitem [pc].fd = 0;
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pitem [pc].events = e_0mq [i];
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pitem [pc].revents = 0;
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++pc;
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}
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env->ReleaseShortArrayElements(event_0mq, e_0mq, 0);
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}
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}
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if (pc == ls) {
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pc = 0;
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long tout = (long) timeout;
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rc = zmq_poll (pitem, ls, tout);
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}
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// Set 0MQ results.
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if (ls_0mq > 0) {
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jshort *r_0mq = env->GetShortArrayElements (revent_0mq, 0);
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if (r_0mq) {
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for (int i = 0; i < ls_0mq; ++i) {
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r_0mq [i] = pitem [pc].revents;
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++pc;
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}
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env->ReleaseShortArrayElements(revent_0mq, r_0mq, 0);
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}
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}
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delete [] pitem;
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return rc;
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}
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/**
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* Get the value of socketHandle for the specified Java Socket.
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* TODO: move this to a single util.h file.
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*/
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static void *fetch_socket (JNIEnv *env, jobject socket)
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{
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static jmethodID get_socket_handle_mid = NULL;
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if (get_socket_handle_mid == NULL) {
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jclass cls = env->GetObjectClass (socket);
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assert (cls);
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get_socket_handle_mid = env->GetMethodID (cls,
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"getSocketHandle", "()J");
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env->DeleteLocalRef (cls);
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assert (get_socket_handle_mid);
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}
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void *s = (void*) env->CallLongMethod (socket, get_socket_handle_mid);
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if (env->ExceptionCheck ()) {
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s = NULL;
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}
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assert (s);
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return s;
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}
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