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Diffstat (limited to 'libdlmclient/dlmclient.h')
-rw-r--r-- | libdlmclient/dlmclient.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/libdlmclient/dlmclient.h b/libdlmclient/dlmclient.h new file mode 100644 index 0000000..908cd6b --- /dev/null +++ b/libdlmclient/dlmclient.h @@ -0,0 +1,86 @@ +/* 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 |