diff options
| author | Michael Biebl <biebl@debian.org> | 2021-10-01 23:05:04 +0200 |
|---|---|---|
| committer | Michael Biebl <biebl@debian.org> | 2021-10-01 23:05:04 +0200 |
| commit | e74c568b07b50b97873fb4ee1d776dedefbd54d6 (patch) | |
| tree | 3469f17ea9af91f7ff169b890633bda68b0cf76e /shared/systemd/src/basic/process-util.h | |
| parent | bfe522304da217296e2a61040f58e35ec5d6f3f2 (diff) | |
New upstream version 1.32.12 upstream/1.32.12
Diffstat (limited to 'shared/systemd/src/basic/process-util.h')
| -rw-r--r-- | shared/systemd/src/basic/process-util.h | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/shared/systemd/src/basic/process-util.h b/shared/systemd/src/basic/process-util.h deleted file mode 100644 index aab2c7a1..00000000 --- a/shared/systemd/src/basic/process-util.h +++ /dev/null @@ -1,203 +0,0 @@ -/* SPDX-License-Identifier: LGPL-2.1-or-later */ -#pragma once - -#include <errno.h> -#include <sched.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 "alloc-util.h" -#include "format-util.h" -#include "ioprio.h" -#include "macro.h" -#include "time-util.h" - -#define procfs_file_alloca(pid, field) \ - ({ \ - pid_t _pid_ = (pid); \ - const char *_field_ = (field); \ - char *_r_; \ - if (_pid_ == 0) { \ - _r_ = newa(char, STRLEN("/proc/self/") + strlen(_field_) + 1); \ - strcpy(stpcpy(_r_, "/proc/self/"), _field_); \ - } else { \ - _r_ = newa(char, STRLEN("/proc/") + DECIMAL_STR_MAX(pid_t) + 1 + strlen(_field_) + 1); \ - sprintf(_r_, "/proc/" PID_FMT "/%s", _pid_, _field_); \ - } \ - (const char*) _r_; \ - }) - -typedef enum ProcessCmdlineFlags { - PROCESS_CMDLINE_COMM_FALLBACK = 1 << 0, - PROCESS_CMDLINE_USE_LOCALE = 1 << 1, -} ProcessCmdlineFlags; - -int get_process_comm(pid_t pid, char **name); -int get_process_cmdline(pid_t pid, size_t max_columns, ProcessCmdlineFlags flags, 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 get_process_umask(pid_t pid, mode_t *umask); - -int wait_for_terminate(pid_t pid, siginfo_t *status); - -typedef enum WaitFlags { - WAIT_LOG_ABNORMAL = 1 << 0, - WAIT_LOG_NON_ZERO_EXIT_STATUS = 1 << 1, - - /* A shortcut for requesting the most complete logging */ - WAIT_LOG = WAIT_LOG_ABNORMAL|WAIT_LOG_NON_ZERO_EXIT_STATUS, -} WaitFlags; - -int wait_for_terminate_and_check(const char *name, pid_t pid, WaitFlags flags); -int wait_for_terminate_with_timeout(pid_t pid, usec_t timeout); - -void sigkill_wait(pid_t pid); -void sigkill_waitp(pid_t *pid); -void sigterm_wait(pid_t pid); - -int kill_and_sigcont(pid_t pid, int sig); - -int rename_process(const char name[]); -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_is_my_child(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 safe_personality(unsigned long p); -int opinionated_personality(unsigned long *ret); - -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); - -static inline pid_t PTR_TO_PID(const void *p) { - return (pid_t) ((uintptr_t) p); -} - -static inline void* PID_TO_PTR(pid_t pid) { - return (void*) ((uintptr_t) pid); -} - -void valgrind_summary_hack(void); - -int pid_compare_func(const pid_t *a, const pid_t *b); - -#if 0 /* NM_IGNORED */ -static inline bool nice_is_valid(int n) { - return n >= PRIO_MIN && n < PRIO_MAX; -} - -static inline bool sched_policy_is_valid(int i) { - return IN_SET(i, SCHED_OTHER, SCHED_BATCH, SCHED_IDLE, SCHED_FIFO, SCHED_RR); -} - -static inline bool sched_priority_is_valid(int i) { - return i >= 0 && i <= sched_get_priority_max(SCHED_RR); -} - -static inline bool ioprio_class_is_valid(int i) { - return IN_SET(i, IOPRIO_CLASS_NONE, IOPRIO_CLASS_RT, IOPRIO_CLASS_BE, IOPRIO_CLASS_IDLE); -} - -static inline bool ioprio_priority_is_valid(int i) { - return i >= 0 && i < IOPRIO_BE_NR; -} - -static inline bool pid_is_valid(pid_t p) { - return p > 0; -} -#endif /* NM_IGNORED */ - -int ioprio_parse_priority(const char *s, int *ret); - -pid_t getpid_cached(void); -void reset_cached_pid(void); - -int must_be_root(void); - -typedef enum ForkFlags { - FORK_RESET_SIGNALS = 1 << 0, /* Reset all signal handlers and signal mask */ - FORK_CLOSE_ALL_FDS = 1 << 1, /* Close all open file descriptors in the child, except for 0,1,2 */ - FORK_DEATHSIG = 1 << 2, /* Set PR_DEATHSIG in the child to SIGTERM */ - FORK_DEATHSIG_SIGINT = 1 << 3, /* Set PR_DEATHSIG in the child to SIGINT */ - FORK_NULL_STDIO = 1 << 4, /* Connect 0,1,2 to /dev/null */ - FORK_REOPEN_LOG = 1 << 5, /* Reopen log connection */ - FORK_LOG = 1 << 6, /* Log above LOG_DEBUG log level about failures */ - FORK_WAIT = 1 << 7, /* Wait until child exited */ - FORK_NEW_MOUNTNS = 1 << 8, /* Run child in its own mount namespace */ - FORK_MOUNTNS_SLAVE = 1 << 9, /* Make child's mount namespace MS_SLAVE */ - FORK_RLIMIT_NOFILE_SAFE = 1 << 10, /* Set RLIMIT_NOFILE soft limit to 1K for select() compat */ - FORK_STDOUT_TO_STDERR = 1 << 11, /* Make stdout a copy of stderr */ -} ForkFlags; - -int safe_fork_full(const char *name, const int except_fds[], size_t n_except_fds, ForkFlags flags, pid_t *ret_pid); - -static inline int safe_fork(const char *name, ForkFlags flags, pid_t *ret_pid) { - return safe_fork_full(name, NULL, 0, flags, ret_pid); -} - -int namespace_fork(const char *outer_name, const char *inner_name, const int except_fds[], size_t n_except_fds, ForkFlags flags, int pidns_fd, int mntns_fd, int netns_fd, int userns_fd, int root_fd, pid_t *ret_pid); - -int fork_agent(const char *name, const int except[], size_t n_except, pid_t *pid, const char *path, ...) _sentinel_; - -int set_oom_score_adjust(int value); - -/* The highest possibly (theoretic) pid_t value on this architecture. */ -#define PID_T_MAX ((pid_t) INT32_MAX) -/* The maximum number of concurrent processes Linux allows on this architecture, as well as the highest valid PID value - * the kernel will potentially assign. This reflects a value compiled into the kernel (PID_MAX_LIMIT), and sets the - * upper boundary on what may be written to the /proc/sys/kernel/pid_max sysctl (but do note that the sysctl is off by - * 1, since PID 0 can never exist and there can hence only be one process less than the limit would suggest). Since - * these values are documented in proc(5) we feel quite confident that they are stable enough for the near future at - * least to define them here too. */ -#define TASKS_MAX 4194303U - -assert_cc(TASKS_MAX <= (unsigned long) PID_T_MAX); - -/* Like TAKE_PTR() but for child PIDs, resetting them to 0 */ -#define TAKE_PID(pid) \ - ({ \ - pid_t _pid_ = (pid); \ - (pid) = 0; \ - _pid_; \ - }) - -int pidfd_get_pid(int fd, pid_t *ret); - -int setpriority_closest(int priority); |