diff options
Diffstat (limited to 'src/libsystemd-basic/include/systemd-basic/process-util.h')
| -rw-r--r-- | src/libsystemd-basic/include/systemd-basic/process-util.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/libsystemd-basic/include/systemd-basic/process-util.h b/src/libsystemd-basic/include/systemd-basic/process-util.h new file mode 100644 index 0000000000..aa51357172 --- /dev/null +++ b/src/libsystemd-basic/include/systemd-basic/process-util.h @@ -0,0 +1,110 @@ +#pragma once + +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <alloca.h> +#include <signal.h> +#include <stdbool.h> +#include <stddef.h> +#include <stdio.h> +#include <string.h> +#include <sys/resource.h> +#include <sys/types.h> + +#include "formats-util.h" +#include "macro.h" + +#define procfs_file_alloca(pid, field) \ + ({ \ + pid_t _pid_ = (pid); \ + const char *_r_; \ + if (_pid_ == 0) { \ + _r_ = ("/proc/self/" field); \ + } else { \ + _r_ = alloca(strlen("/proc/") + DECIMAL_STR_MAX(pid_t) + 1 + sizeof(field)); \ + sprintf((char*) _r_, "/proc/"PID_FMT"/" field, _pid_); \ + } \ + _r_; \ + }) + +int get_process_state(pid_t pid); +int get_process_comm(pid_t pid, char **name); +int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line); +int get_process_exe(pid_t pid, char **name); +int get_process_uid(pid_t pid, uid_t *uid); +int get_process_gid(pid_t pid, gid_t *gid); +int get_process_capeff(pid_t pid, char **capeff); +int get_process_cwd(pid_t pid, char **cwd); +int get_process_root(pid_t pid, char **root); +int get_process_environ(pid_t pid, char **environ); +int get_process_ppid(pid_t pid, pid_t *ppid); + +int wait_for_terminate(pid_t pid, siginfo_t *status); +int wait_for_terminate_and_warn(const char *name, pid_t pid, bool check_exit_code); + +void sigkill_wait(pid_t pid); +void sigkill_waitp(pid_t *pid); + +int kill_and_sigcont(pid_t pid, int sig); + +void rename_process(const char name[8]); +int is_kernel_thread(pid_t pid); + +int getenv_for_pid(pid_t pid, const char *field, char **_value); + +bool pid_is_alive(pid_t pid); +bool pid_is_unwaited(pid_t pid); +int pid_from_same_root_fs(pid_t pid); + +bool is_main_thread(void); + +noreturn void freeze(void); + +bool oom_score_adjust_is_valid(int oa); + +#ifndef PERSONALITY_INVALID +/* personality(7) documents that 0xffffffffUL is used for querying the + * current personality, hence let's use that here as error + * indicator. */ +#define PERSONALITY_INVALID 0xffffffffLU +#endif + +unsigned long personality_from_string(const char *p); +const char *personality_to_string(unsigned long); + +int ioprio_class_to_string_alloc(int i, char **s); +int ioprio_class_from_string(const char *s); + +const char *sigchld_code_to_string(int i) _const_; +int sigchld_code_from_string(const char *s) _pure_; + +int sched_policy_to_string_alloc(int i, char **s); +int sched_policy_from_string(const char *s); + +#define PTR_TO_PID(p) ((pid_t) ((uintptr_t) p)) +#define PID_TO_PTR(p) ((void*) ((uintptr_t) p)) + +void valgrind_summary_hack(void); + +int pid_compare_func(const void *a, const void *b); + +static inline bool nice_is_valid(int n) { + return n >= PRIO_MIN && n < PRIO_MAX; +} |