X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=liblttng-ust%2Flttng-context-cpu-id.c;h=a3252f1575369d99ca01049be48e171917ead6c3;hb=HEAD;hp=358dff98e38ec28ebd33c15857ede451b5286672;hpb=4e48b5d2debaf6c0c598489c183cc6cb2125c8a3;p=lttng-ust.git diff --git a/liblttng-ust/lttng-context-cpu-id.c b/liblttng-ust/lttng-context-cpu-id.c deleted file mode 100644 index 358dff98..00000000 --- a/liblttng-ust/lttng-context-cpu-id.c +++ /dev/null @@ -1,83 +0,0 @@ -/* - * SPDX-License-Identifier: LGPL-2.1-only - * - * Copyright (C) 2009-2015 Mathieu Desnoyers - * - * LTTng UST CPU id context. - * - * Note: threads can be migrated at any point while executing the - * tracepoint probe. This means the CPU id field (and filter) is only - * statistical. For instance, even though a user might select a - * cpu_id==1 filter, there may be few events recorded into the channel - * appearing from other CPUs, due to migration. - */ - -#define _LGPL_SOURCE -#include -#include -#include -#include -#include -#include -#include "../libringbuffer/getcpu.h" -#include - -#include "context-internal.h" - -static -size_t cpu_id_get_size(void *priv __attribute__((unused)), - size_t offset) -{ - size_t size = 0; - - size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(int)); - size += sizeof(int); - return size; -} - -static -void cpu_id_record(void *priv __attribute__((unused)), - struct lttng_ust_lib_ring_buffer_ctx *ctx, - struct lttng_ust_channel_buffer *chan) -{ - int cpu; - - cpu = lttng_ust_get_cpu(); - chan->ops->event_write(ctx, &cpu, sizeof(cpu), lttng_ust_rb_alignof(cpu)); -} - -static -void cpu_id_get_value(void *priv __attribute__((unused)), - struct lttng_ust_ctx_value *value) -{ - value->u.s64 = lttng_ust_get_cpu(); -} - -static const struct lttng_ust_ctx_field *ctx_field = lttng_ust_static_ctx_field( - lttng_ust_static_event_field("cpu_id", - lttng_ust_static_type_integer(sizeof(int) * CHAR_BIT, - lttng_ust_rb_alignof(int) * CHAR_BIT, - lttng_ust_is_signed_type(int), - BYTE_ORDER, 10), - false, false), - cpu_id_get_size, - cpu_id_record, - cpu_id_get_value, - NULL, NULL); - -int lttng_add_cpu_id_to_ctx(struct lttng_ust_ctx **ctx) -{ - int ret; - - if (lttng_find_context(*ctx, ctx_field->event_field->name)) { - ret = -EEXIST; - goto error_find_context; - } - ret = lttng_ust_context_append(ctx, ctx_field); - if (ret) - return ret; - return 0; - -error_find_context: - return ret; -}