Ben Walker fcb4776fe7 event: Pollers must now be registered from the thread they run on.
Change-Id: I864cd8a6c206dfbe62fcb3f72275c1ae51aa4ed7
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/387688
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-11-17 11:11:23 -05:00

108 lines
3.0 KiB
C

/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "spdk/stdinc.h"
#include "spdk/conf.h"
#include "spdk/env.h"
#include "spdk/log.h"
#include "spdk/rpc.h"
#include "spdk_internal/event.h"
#define RPC_SELECT_INTERVAL 4000 /* 4ms */
static struct spdk_poller *g_rpc_poller = NULL;
static const char *
rpc_get_listen_addr(void)
{
struct spdk_conf_section *sp;
sp = spdk_conf_find_section(NULL, "Rpc");
if (sp == NULL) {
return NULL;
}
return spdk_conf_section_get_val(sp, "Listen");
}
static void
spdk_rpc_subsystem_poll(void *arg)
{
spdk_rpc_accept();
}
void
spdk_rpc_initialize(const char *listen_addr)
{
int rc;
if (rpc_get_listen_addr() != NULL) {
listen_addr = rpc_get_listen_addr();
}
if (listen_addr == NULL) {
return;
}
/* Listen on the requested address */
rc = spdk_rpc_listen(listen_addr);
if (rc != 0) {
SPDK_ERRLOG("Unable to start RPC service at %s\n", listen_addr);
return;
}
/* Register a poller to periodically check for RPCs */
spdk_poller_register(&g_rpc_poller, spdk_rpc_subsystem_poll, NULL,
RPC_SELECT_INTERVAL);
}
void
spdk_rpc_finish(void)
{
spdk_rpc_close();
spdk_poller_unregister(&g_rpc_poller, NULL);
}
void
spdk_rpc_config_text(FILE *fp)
{
fprintf(fp,
"\n"
"[Rpc]\n"
" # Listen address for the RPC service.\n"
" # May be an IP address or an absolute path to a Unix socket.\n"
" Listen %s\n", rpc_get_listen_addr());
}