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Commit | Line | Data |
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0b452006 RC |
1 | #pragma once |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
0b452006 | 22 | #include <alloca.h> |
29ea9f0f | 23 | #include <sched.h> |
71d35b6b TA |
24 | #include <signal.h> |
25 | #include <stdbool.h> | |
11c3a366 | 26 | #include <stddef.h> |
0b452006 RC |
27 | #include <stdio.h> |
28 | #include <string.h> | |
41bf0590 | 29 | #include <sys/resource.h> |
7f452159 | 30 | #include <sys/types.h> |
0b452006 | 31 | |
f97b34a6 | 32 | #include "format-util.h" |
7f452159 | 33 | #include "ioprio.h" |
7b3e062c | 34 | #include "macro.h" |
0b452006 RC |
35 | |
36 | #define procfs_file_alloca(pid, field) \ | |
37 | ({ \ | |
38 | pid_t _pid_ = (pid); \ | |
39 | const char *_r_; \ | |
40 | if (_pid_ == 0) { \ | |
41 | _r_ = ("/proc/self/" field); \ | |
42 | } else { \ | |
43 | _r_ = alloca(strlen("/proc/") + DECIMAL_STR_MAX(pid_t) + 1 + sizeof(field)); \ | |
44 | sprintf((char*) _r_, "/proc/"PID_FMT"/" field, _pid_); \ | |
45 | } \ | |
46 | _r_; \ | |
47 | }) | |
48 | ||
49 | int get_process_state(pid_t pid); | |
50 | int get_process_comm(pid_t pid, char **name); | |
51 | int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line); | |
52 | int get_process_exe(pid_t pid, char **name); | |
53 | int get_process_uid(pid_t pid, uid_t *uid); | |
54 | int get_process_gid(pid_t pid, gid_t *gid); | |
55 | int get_process_capeff(pid_t pid, char **capeff); | |
56 | int get_process_cwd(pid_t pid, char **cwd); | |
57 | int get_process_root(pid_t pid, char **root); | |
58 | int get_process_environ(pid_t pid, char **environ); | |
6bc73acb | 59 | int get_process_ppid(pid_t pid, pid_t *ppid); |
0b452006 RC |
60 | |
61 | int wait_for_terminate(pid_t pid, siginfo_t *status); | |
62 | int wait_for_terminate_and_warn(const char *name, pid_t pid, bool check_exit_code); | |
63 | ||
89c9030d LP |
64 | void sigkill_wait(pid_t pid); |
65 | void sigkill_waitp(pid_t *pid); | |
4d0d3d41 | 66 | |
0b452006 | 67 | int kill_and_sigcont(pid_t pid, int sig); |
405f8907 | 68 | |
9bfaffd5 | 69 | int rename_process(const char name[]); |
0b452006 | 70 | int is_kernel_thread(pid_t pid); |
405f8907 | 71 | |
0b452006 RC |
72 | int getenv_for_pid(pid_t pid, const char *field, char **_value); |
73 | ||
74 | bool pid_is_alive(pid_t pid); | |
75 | bool pid_is_unwaited(pid_t pid); | |
1359fffa | 76 | int pid_from_same_root_fs(pid_t pid); |
d4510856 LP |
77 | |
78 | bool is_main_thread(void); | |
ceee6d3a | 79 | |
7b3e062c LP |
80 | noreturn void freeze(void); |
81 | ||
82 | bool oom_score_adjust_is_valid(int oa); | |
83 | ||
84 | #ifndef PERSONALITY_INVALID | |
85 | /* personality(7) documents that 0xffffffffUL is used for querying the | |
86 | * current personality, hence let's use that here as error | |
87 | * indicator. */ | |
88 | #define PERSONALITY_INVALID 0xffffffffLU | |
89 | #endif | |
90 | ||
91 | unsigned long personality_from_string(const char *p); | |
92 | const char *personality_to_string(unsigned long); | |
93 | ||
21022b9d | 94 | int safe_personality(unsigned long p); |
e8132d63 LP |
95 | int opinionated_personality(unsigned long *ret); |
96 | ||
7b3e062c LP |
97 | int ioprio_class_to_string_alloc(int i, char **s); |
98 | int ioprio_class_from_string(const char *s); | |
99 | ||
100 | const char *sigchld_code_to_string(int i) _const_; | |
101 | int sigchld_code_from_string(const char *s) _pure_; | |
102 | ||
103 | int sched_policy_to_string_alloc(int i, char **s); | |
104 | int sched_policy_from_string(const char *s); | |
105 | ||
ceee6d3a LP |
106 | #define PTR_TO_PID(p) ((pid_t) ((uintptr_t) p)) |
107 | #define PID_TO_PTR(p) ((void*) ((uintptr_t) p)) | |
dcadc967 EV |
108 | |
109 | void valgrind_summary_hack(void); | |
291d565a LP |
110 | |
111 | int pid_compare_func(const void *a, const void *b); | |
41bf0590 LP |
112 | |
113 | static inline bool nice_is_valid(int n) { | |
114 | return n >= PRIO_MIN && n < PRIO_MAX; | |
115 | } | |
7f452159 | 116 | |
29ea9f0f YW |
117 | static inline bool sched_policy_is_valid(int i) { |
118 | return IN_SET(i, SCHED_OTHER, SCHED_BATCH, SCHED_IDLE, SCHED_FIFO, SCHED_RR); | |
119 | } | |
120 | ||
121 | static inline bool sched_priority_is_valid(int i) { | |
122 | return i >= 0 && i <= sched_get_priority_max(SCHED_RR); | |
123 | } | |
124 | ||
7f452159 LP |
125 | static inline bool ioprio_class_is_valid(int i) { |
126 | return IN_SET(i, IOPRIO_CLASS_NONE, IOPRIO_CLASS_RT, IOPRIO_CLASS_BE, IOPRIO_CLASS_IDLE); | |
127 | } | |
128 | ||
129 | static inline bool ioprio_priority_is_valid(int i) { | |
130 | return i >= 0 && i < IOPRIO_BE_NR; | |
131 | } | |
132 | ||
54191eb3 LP |
133 | static inline bool pid_is_valid(pid_t p) { |
134 | return p > 0; | |
135 | } | |
136 | ||
7f452159 | 137 | int ioprio_parse_priority(const char *s, int *ret); |
5c30a6d2 LP |
138 | |
139 | pid_t getpid_cached(void); |