projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 48c47564 PP |
1 | /* |
| 2 | * Copyright (C) 2020 Philippe Proulx <pproulx@efficios.com> | |
| 3 | * | |
| 4 | * SPDX-License-Identifier: LGPL-2.1-only | |
| 5 | * | |
| 6 | */ | |
| 7 | ||
| 8 | #ifndef LTTNG_EVENT_EXPR_INTERNAL_H | |
| 9 | #define LTTNG_EVENT_EXPR_INTERNAL_H | |
| 10 | ||
| 11 | #include <assert.h> | |
| 12 | #include <lttng/event-expr.h> | |
| 13 | ||
| 14 | struct lttng_event_expr { | |
| 15 | enum lttng_event_expr_type type; | |
| 16 | }; | |
| 17 | ||
| 18 | /* | |
| 19 | * `LTTNG_EVENT_EXPR_TYPE_EVENT_PAYLOAD_FIELD` and | |
| 20 | * `LTTNG_EVENT_EXPR_TYPE_CHANNEL_CONTEXT_FIELD`. | |
| 21 | */ | |
| 22 | struct lttng_event_expr_field { | |
| 23 | struct lttng_event_expr parent; | |
| 24 | char *name; | |
| 25 | }; | |
| 26 | ||
| 27 | /* `LTTNG_EVENT_EXPR_TYPE_APP_SPECIFIC_CONTEXT_FIELD` */ | |
| 28 | struct lttng_event_expr_app_specific_context_field { | |
| 29 | struct lttng_event_expr parent; | |
| 30 | char *provider_name; | |
| 31 | char *type_name; | |
| 32 | }; | |
| 33 | ||
| 34 | /* `LTTNG_EVENT_EXPR_TYPE_ARRAY_FIELD_ELEMENT` */ | |
| 35 | struct lttng_event_expr_array_field_element { | |
| 36 | struct lttng_event_expr parent; | |
| 37 | ||
| 38 | /* Owned by this */ | |
| 39 | struct lttng_event_expr *array_field_expr; | |
| 40 | ||
| 41 | unsigned int index; | |
| 42 | }; | |
| 43 | ||
| 44 | /* | |
| 45 | * Returns whether or not `expr` is an l-value (locator value). | |
| 46 | */ | |
| 47 | static inline | |
| 48 | bool lttng_event_expr_is_lvalue(const struct lttng_event_expr *expr) | |
| 49 | { | |
| 50 | assert(expr); | |
| 51 | return expr->type == LTTNG_EVENT_EXPR_TYPE_EVENT_PAYLOAD_FIELD || | |
| 52 | expr->type == LTTNG_EVENT_EXPR_TYPE_CHANNEL_CONTEXT_FIELD || | |
| 53 | expr->type == LTTNG_EVENT_EXPR_TYPE_APP_SPECIFIC_CONTEXT_FIELD || | |
| 54 | expr->type == LTTNG_EVENT_EXPR_TYPE_ARRAY_FIELD_ELEMENT; | |
| 55 | } | |
| 56 | ||
| 57 | #endif /* LTTNG_EVENT_EXPR_INTERNAL_H */ |