1 files changed, 93 insertions, 0 deletions
diff --git a/include/opentracing-c-wrapper/tracer.h b/include/opentracing-c-wrapper/tracer.h
new file mode 100644
index 0000000..ca27e1e
--- /dev/null
+++ b/include/opentracing-c-wrapper/tracer.h
@@ -0,0 +1,93 @@
+/***
+ * Copyright 2020 HAProxy Technologies
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef OPENTRACING_C_WRAPPER_TRACER_H
+#define OPENTRACING_C_WRAPPER_TRACER_H
+
+__CPLUSPLUS_DECL_BEGIN
+
+struct otc_tag {
+	const char       *key;
+	struct otc_value  value;
+};
+
+struct otc_start_span_options {
+	struct otc_duration              start_time_steady;
+	struct otc_timestamp             start_time_system;
+	const struct otc_span_reference *references;
+	int                              num_references;
+	const struct otc_tag            *tags;
+	int                              num_tags;
+};
+
+/***
+ * tracer interface
+ */
+struct otc_tracer {
+	void (*close)(struct otc_tracer *tracer)
+		OTC_NONNULL_ALL;
+
+	struct otc_span *(*start_span)(struct otc_tracer *tracer, const char *operation_name)
+		OTC_NONNULL_ALL;
+
+	struct otc_span *(*start_span_with_options)(struct otc_tracer *tracer, const char *operation_name, const struct otc_start_span_options *options)
+		OTC_NONNULL(1, 2);
+
+	otc_propagation_error_code_t (*inject_text_map)(struct otc_tracer *tracer, struct otc_text_map_writer *carrier, const struct otc_span_context *span_context)
+		OTC_NONNULL_ALL;
+
+	otc_propagation_error_code_t (*inject_http_headers)(struct otc_tracer *tracer, struct otc_http_headers_writer *carrier, const struct otc_span_context *span_context)
+		OTC_NONNULL_ALL;
+
+	otc_propagation_error_code_t (*inject_binary)(struct otc_tracer *tracer, struct otc_custom_carrier_writer *carrier, const struct otc_span_context *span_context)
+		OTC_NONNULL_ALL;
+
+	otc_propagation_error_code_t (*inject_custom)(struct otc_tracer *tracer, struct otc_custom_carrier_writer *carrier, const struct otc_span_context *span_context)
+		OTC_NONNULL_ALL;
+
+	otc_propagation_error_code_t (*extract_text_map)(struct otc_tracer *tracer, const struct otc_text_map_reader *carrier, struct otc_span_context **span_context)
+		OTC_NONNULL_ALL;
+
+	otc_propagation_error_code_t (*extract_http_headers)(struct otc_tracer *tracer, const struct otc_http_headers_reader *carrier, struct otc_span_context **span_context)
+		OTC_NONNULL_ALL;
+
+	otc_propagation_error_code_t (*extract_binary)(struct otc_tracer *tracer, const struct otc_custom_carrier_reader *carrier, struct otc_span_context **span_context)
+		OTC_NONNULL_ALL;
+
+	otc_propagation_error_code_t (*extract_custom)(struct otc_tracer *tracer, const struct otc_custom_carrier_reader *carrier, struct otc_span_context **span_context)
+		OTC_NONNULL_ALL;
+
+	void (*destroy)(struct otc_tracer **tracer)
+		OTC_NONNULL_ALL;
+};
+
+
+struct otc_tracer *otc_tracer_init(const char *library, const char *cfgfile, const char *cfgbuf, char *errbuf, int errbufsiz);
+struct otc_tracer *otc_tracer_load(const char *library, char *errbuf, int errbufsiz);
+int                otc_tracer_start(const char *cfgfile, const char *cfgbuf, char *errbuf, int errbufsiz);
+void               otc_tracer_global(struct otc_tracer *tracer);
+void               otc_tracer_init_global(struct otc_tracer *tracer);
+
+__CPLUSPLUS_DECL_END
+#endif /* OPENTRACING_C_WRAPPER_TRACER_H */
+
+/*
+ * Local variables:
+ *  c-indent-level: 8
+ *  c-basic-offset: 8
+ * End:
+ *
+ * vi: noexpandtab shiftwidth=8 tabstop=8
+ */