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author | 2020-02-21 11:52:28 +0100 | |
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committer | 2020-02-26 13:19:16 +0100 | |
commit | f4433f28b509a9f67ca85d79000ccf9c2f4b7a24 (patch) | |
tree | 0f754bc9d8222f3ace11849165753acd85be3b38 /libtransport/src/utils/daemonizator.cc | |
parent | 0e7669445b6be1163189521eabed7dd0124043c8 (diff) |
[HICN-534] Major rework on libtransport organization
Change-Id: I361b83a18b4fd59be136d5f0817fc28e17e89884
Signed-off-by: Mauro Sardara <msardara@cisco.com>
Diffstat (limited to 'libtransport/src/utils/daemonizator.cc')
-rw-r--r-- | libtransport/src/utils/daemonizator.cc | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/libtransport/src/utils/daemonizator.cc b/libtransport/src/utils/daemonizator.cc new file mode 100644 index 000000000..c51a68d14 --- /dev/null +++ b/libtransport/src/utils/daemonizator.cc @@ -0,0 +1,76 @@ +/* + * Copyright (c) 2017-2019 Cisco and/or its affiliates. + * 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 _WIN32 +#include <hicn/transport/errors/runtime_exception.h> +#include <hicn/transport/utils/daemonizator.h> +#include <hicn/transport/utils/log.h> + +#include <sys/stat.h> +#include <unistd.h> + +namespace utils { + +void Daemonizator::daemonize(bool close_fds) { + pid_t process_id = 0; + pid_t sid = 0; + + // Create child process + process_id = fork(); + + // Indication of fork() failure + if (process_id < 0) { + throw errors::RuntimeException("Fork failed."); + } + + // PARENT PROCESS. Need to kill it. + if (process_id > 0) { + TRANSPORT_LOGE("Process id of child process %d", process_id); + // return success in exit status + exit(EXIT_SUCCESS); + } + + // unmask the file mode + umask(0); + + // set new session + sid = setsid(); + if (sid < 0) { + // Return failure + exit(EXIT_FAILURE); + } + + // Change the current working directory to root. + int ret = chdir("/"); + + if (ret < 0) { + throw errors::RuntimeException("Error changing working directory to root"); + } + + // Close stdin. Redirect stdout and stderr to file if possible + + if (close_fds) { + close(STDOUT_FILENO); + close(STDERR_FILENO); + } + + close(STDIN_FILENO); + + // Really start application +} + +} // namespace utils + +#endif |