d97476efdf
With the new asynchronous subsystem finish framework, we can drive shutdown of existing connections as part of the subsystem finish path instead of a separate spdk_iscsi_shutdown function called as the shutdown function in response to SIGINT. This is a step towards enabling a single target app that supports multiple protocols (i.e. iSCSI + vhost + NVMe-oF). Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: Id9f596a8091912a72ab7eb93cb45a46fdb130a48 Reviewed-on: https://review.gerrithub.io/386695 Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
116 lines
3.2 KiB
C
116 lines
3.2 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "spdk/stdinc.h"
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#include "spdk/env.h"
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#include "spdk/event.h"
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#include "iscsi/iscsi.h"
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#include "spdk/log.h"
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#include "spdk/net.h"
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static int g_daemon_mode = 0;
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static void
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spdk_sigusr1(int signo __attribute__((__unused__)))
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{
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char *config_str = NULL;
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if (spdk_app_get_running_config(&config_str, "iscsi.conf") < 0)
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fprintf(stderr, "Error getting config\n");
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else {
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fprintf(stdout, "============================\n");
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fprintf(stdout, " iSCSI target running config\n");
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fprintf(stdout, "=============================\n");
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fprintf(stdout, "%s", config_str);
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}
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free(config_str);
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}
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static void
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iscsi_usage(void)
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{
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printf(" -b run iscsi target background, the default is foreground\n");
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}
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static void
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spdk_startup(void *arg1, void *arg2)
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{
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if (getenv("MEMZONE_DUMP") != NULL) {
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spdk_memzone_dump(stdout);
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fflush(stdout);
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}
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}
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static void
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iscsi_parse_arg(int ch, char *arg)
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{
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switch (ch) {
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case 'b':
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g_daemon_mode = 1;
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break;
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default:
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assert(false);
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break;
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}
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}
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int
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main(int argc, char **argv)
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{
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int rc;
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struct spdk_app_opts opts = {};
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spdk_app_opts_init(&opts);
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opts.config_file = SPDK_ISCSI_DEFAULT_CONFIG;
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opts.name = "iscsi";
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spdk_app_parse_args(argc, argv, &opts, "b", iscsi_parse_arg, iscsi_usage);
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if (g_daemon_mode) {
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if (daemon(1, 0) < 0) {
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SPDK_ERRLOG("Start iscsi target daemon faild.\n");
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exit(EXIT_FAILURE);
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}
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}
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opts.shutdown_cb = NULL;
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opts.usr1_handler = spdk_sigusr1;
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printf("Using net framework %s\n", spdk_net_framework_get_name());
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/* Blocks until the application is exiting */
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rc = spdk_app_start(&opts, spdk_startup, NULL, NULL);
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spdk_app_fini();
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return rc;
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}
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