488570ebd4
Many open source projects have moved to using SPDX identifiers to specify license information, reducing the amount of boilerplate code in every source file. This patch replaces the bulk of SPDK .c, .cpp and Makefiles with the BSD-3-Clause identifier. Almost all of these files share the exact same license text, and this patch only modifies the files that contain the most common license text. There can be slight variations because the third clause contains company names - most say "Intel Corporation", but there are instances for Nvidia, Samsung, Eideticom and even "the copyright holder". Used a bash script to automate replacement of the license text with SPDX identifier which is checked into scripts/spdx.sh. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: Iaa88ab5e92ea471691dc298cfe41ebfb5d169780 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12904 Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> Community-CI: Mellanox Build Bot Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Dong Yi <dongx.yi@intel.com> Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com> Reviewed-by: Paul Luse <paul.e.luse@intel.com> Reviewed-by: <qun.wan@intel.com>
123 lines
2.7 KiB
C
123 lines
2.7 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright (c) Intel Corporation.
|
|
* All rights reserved.
|
|
*/
|
|
|
|
#include <sys/queue.h>
|
|
|
|
#include "spdk/stdinc.h"
|
|
#include "spdk/util.h"
|
|
#include "spdk/queue.h"
|
|
#include "spdk/string.h"
|
|
#include "spdk/log.h"
|
|
|
|
#include "spdk/notify.h"
|
|
|
|
#define SPDK_NOTIFY_MAX_EVENTS 1024
|
|
|
|
struct spdk_notify_type {
|
|
char name[SPDK_NOTIFY_MAX_NAME_SIZE];
|
|
TAILQ_ENTRY(spdk_notify_type) tailq;
|
|
};
|
|
|
|
pthread_mutex_t g_events_lock = PTHREAD_MUTEX_INITIALIZER;
|
|
static struct spdk_notify_event g_events[SPDK_NOTIFY_MAX_EVENTS];
|
|
static uint64_t g_events_head;
|
|
|
|
static TAILQ_HEAD(, spdk_notify_type) g_notify_types = TAILQ_HEAD_INITIALIZER(g_notify_types);
|
|
|
|
struct spdk_notify_type *
|
|
spdk_notify_type_register(const char *type)
|
|
{
|
|
struct spdk_notify_type *it = NULL;
|
|
|
|
if (!type) {
|
|
SPDK_ERRLOG("Invalid notification type %p\n", type);
|
|
return NULL;
|
|
} else if (!type[0] || strlen(type) >= SPDK_NOTIFY_MAX_NAME_SIZE) {
|
|
SPDK_ERRLOG("Notification type '%s' too short or too long\n", type);
|
|
return NULL;
|
|
}
|
|
|
|
pthread_mutex_lock(&g_events_lock);
|
|
TAILQ_FOREACH(it, &g_notify_types, tailq) {
|
|
if (strcmp(type, it->name) == 0) {
|
|
SPDK_NOTICELOG("Notification type '%s' already registered.\n", type);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
it = calloc(1, sizeof(*it));
|
|
if (it == NULL) {
|
|
goto out;
|
|
}
|
|
|
|
snprintf(it->name, sizeof(it->name), "%s", type);
|
|
TAILQ_INSERT_TAIL(&g_notify_types, it, tailq);
|
|
|
|
out:
|
|
pthread_mutex_unlock(&g_events_lock);
|
|
return it;
|
|
}
|
|
|
|
const char *
|
|
spdk_notify_type_get_name(const struct spdk_notify_type *type)
|
|
{
|
|
return type->name;
|
|
}
|
|
|
|
|
|
void
|
|
spdk_notify_foreach_type(spdk_notify_foreach_type_cb cb, void *ctx)
|
|
{
|
|
struct spdk_notify_type *it;
|
|
|
|
pthread_mutex_lock(&g_events_lock);
|
|
TAILQ_FOREACH(it, &g_notify_types, tailq) {
|
|
if (cb(it, ctx)) {
|
|
break;
|
|
}
|
|
}
|
|
pthread_mutex_unlock(&g_events_lock);
|
|
}
|
|
|
|
uint64_t
|
|
spdk_notify_send(const char *type, const char *ctx)
|
|
{
|
|
uint64_t head;
|
|
struct spdk_notify_event *ev;
|
|
|
|
pthread_mutex_lock(&g_events_lock);
|
|
head = g_events_head;
|
|
g_events_head++;
|
|
|
|
ev = &g_events[head % SPDK_NOTIFY_MAX_EVENTS];
|
|
spdk_strcpy_pad(ev->type, type, sizeof(ev->type), '\0');
|
|
spdk_strcpy_pad(ev->ctx, ctx, sizeof(ev->ctx), '\0');
|
|
pthread_mutex_unlock(&g_events_lock);
|
|
|
|
return head;
|
|
}
|
|
|
|
uint64_t
|
|
spdk_notify_foreach_event(uint64_t start_idx, uint64_t max,
|
|
spdk_notify_foreach_event_cb cb_fn, void *ctx)
|
|
{
|
|
uint64_t i;
|
|
|
|
pthread_mutex_lock(&g_events_lock);
|
|
|
|
if (g_events_head > SPDK_NOTIFY_MAX_EVENTS && start_idx < g_events_head - SPDK_NOTIFY_MAX_EVENTS) {
|
|
start_idx = g_events_head - SPDK_NOTIFY_MAX_EVENTS;
|
|
}
|
|
|
|
for (i = 0; start_idx < g_events_head && i < max; start_idx++, i++) {
|
|
if (cb_fn(start_idx, &g_events[start_idx % SPDK_NOTIFY_MAX_EVENTS], ctx)) {
|
|
break;
|
|
}
|
|
}
|
|
pthread_mutex_unlock(&g_events_lock);
|
|
|
|
return i;
|
|
}
|