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-rw-r--r--libdlmclient/dlmclient.h86
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diff --git a/libdlmclient/dlmclient.h b/libdlmclient/dlmclient.h
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+/* Copyright 2020-2021 IGEL Co., Ltd.
+ *
+ * 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.
+ */
+
+/**
+ * @file dlmclient.h
+ */
+#ifndef DLM_CLIENT_H
+#define DLM_CLIENT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdbool.h>
+
+/**
+ * @brief Enable debug logging
+ *
+ * @param[in] enable enable/disable debug logging
+ */
+void dlm_enable_debug_log(bool enable);
+
+/**
+ * @brief lease handle
+ */
+struct dlm_lease;
+
+/**
+ * @brief Get a DRM lease from the lease manager
+ *
+ * @param[in] name requested lease
+ * @return A pointer to a lease handle on success.
+ * On error this function returns NULL and errno is set accordingly.
+ *
+ * Possible errors:
+ *
+ * errno | Meaning
+ * -------------|-------------------------------------------------------------
+ * EACCESS | Cannot access lease manager socket directory
+ * EACCESS | Lease request denied by lease manager
+ * ENAMETOOLONG | The path to the lease manager socket directory is too long
+ * ENOENT | Lease manager or requested lease not available
+ * ENOMEM | Out of memory during operation
+ * EPROTO | Protocol error in communication with lease manager
+ *
+ * This list is not exhaustive, and errno may be set to other error codes,
+ * especially those related to socket communication.
+ */
+struct dlm_lease *dlm_get_lease(const char *name);
+
+/**
+ * @brief Release a lease handle
+ *
+ * @details Release a lease handle. The lease handle will be invalidated and
+ * the associated DRM lease wil be revoked. Any fd's retrieved from
+ * dlm_lease_fd() will be closed.
+ * @param[in] lease pointer to lease handle
+ */
+void dlm_release_lease(struct dlm_lease *lease);
+
+/**
+ * @brief Get a DRM Master fd from a valid lease handle
+ *
+ * @param[in] lease pointer to a lease handle
+ * @return A DRM Master file descriptor for the lease on success.
+ * -1 is returned when called with a NULL lease handle.
+ */
+int dlm_lease_fd(struct dlm_lease *lease);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif