X-Git-Url: http://git.lttng.org/?p=lttng-modules.git;a=blobdiff_plain;f=lttng-context-vtid.c;h=8fd68a8c27041f73d1ac0bed6c4bff2e5a433a08;hp=3b0cadc4c3f01a679cf91d9d3062f8302b1c0ef9;hb=HEAD;hpb=2df37e95fa4303ecc0db41334452665491533641 diff --git a/lttng-context-vtid.c b/lttng-context-vtid.c deleted file mode 100644 index 3b0cadc4..00000000 --- a/lttng-context-vtid.c +++ /dev/null @@ -1,89 +0,0 @@ -/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) - * - * lttng-context-vtid.c - * - * LTTng vTID context. - * - * Copyright (C) 2009-2012 Mathieu Desnoyers - */ - -#include -#include -#include -#include -#include -#include -#include - -static -size_t vtid_get_size(size_t offset) -{ - size_t size = 0; - - size += lib_ring_buffer_align(offset, lttng_alignof(pid_t)); - size += sizeof(pid_t); - return size; -} - -static -void vtid_record(struct lttng_ctx_field *field, - struct lib_ring_buffer_ctx *ctx, - struct lttng_channel *chan) -{ - pid_t vtid; - - /* - * nsproxy can be NULL when scheduled out of exit. - */ - if (!current->nsproxy) - vtid = 0; - else - vtid = task_pid_vnr(current); - lib_ring_buffer_align_ctx(ctx, lttng_alignof(vtid)); - chan->ops->event_write(ctx, &vtid, sizeof(vtid)); -} - -static -void vtid_get_value(struct lttng_ctx_field *field, - struct lttng_probe_ctx *lttng_probe_ctx, - union lttng_ctx_value *value) -{ - pid_t vtid; - - /* - * nsproxy can be NULL when scheduled out of exit. - */ - if (!current->nsproxy) - vtid = 0; - else - vtid = task_pid_vnr(current); - value->s64 = vtid; -} - -int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx) -{ - struct lttng_ctx_field *field; - - field = lttng_append_context(ctx); - if (!field) - return -ENOMEM; - if (lttng_find_context(*ctx, "vtid")) { - lttng_remove_context_field(ctx, field); - return -EEXIST; - } - field->event_field.name = "vtid"; - field->event_field.type.atype = atype_integer; - field->event_field.type.u.integer.size = sizeof(pid_t) * CHAR_BIT; - field->event_field.type.u.integer.alignment = lttng_alignof(pid_t) * CHAR_BIT; - field->event_field.type.u.integer.signedness = lttng_is_signed_type(pid_t); - field->event_field.type.u.integer.reverse_byte_order = 0; - field->event_field.type.u.integer.base = 10; - field->event_field.type.u.integer.encoding = lttng_encode_none; - field->get_size = vtid_get_size; - field->record = vtid_record; - field->get_value = vtid_get_value; - lttng_context_update(*ctx); - wrapper_vmalloc_sync_mappings(); - return 0; -} -EXPORT_SYMBOL_GPL(lttng_add_vtid_to_ctx);