numam-spdk/lib/event/rpc.c
Daniel Verkamp 6cce3666ea rpc: prefer command-line address over config file
Change the command-line -r option to take precedence over the [Rpc]
section of the configuration file.

Change-Id: I6f043bafaa8b0ede10dd8a483ca77ad34ff7639a
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/390329
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-12-05 13:16:57 -05:00

115 lines
3.1 KiB
C

/*-
* BSD LICENSE
*
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* All rights reserved.
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*
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*/
#include "spdk/stdinc.h"
#include "spdk/conf.h"
#include "spdk/env.h"
#include "spdk/io_channel.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 (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 */
g_rpc_poller = spdk_poller_register(spdk_rpc_subsystem_poll, NULL, RPC_SELECT_INTERVAL);
}
void
spdk_rpc_finish(void)
{
spdk_rpc_close();
spdk_poller_unregister(&g_rpc_poller);
}
void
spdk_rpc_config_text(FILE *fp)
{
const char *listen_addr;
listen_addr = rpc_get_listen_addr();
if (listen_addr == NULL) {
return;
}
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", listen_addr);
}