Fix: waiter: futex wait: handle spurious futex wakeups
[lttng-tools.git] / src / common / runas.hpp
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1#ifndef _RUNAS_H
2#define _RUNAS_H
3
4/*
21cf9b6b 5 * Copyright (C) 2011 EfficiOS Inc.
ab5be9fa 6 * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
60b6c79c 7 *
c922647d 8 * SPDX-License-Identifier: LGPL-2.1-only
60b6c79c 9 *
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10 */
11
0ef03255 12#include <stdint.h>
3446f606 13#include <sys/types.h>
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14#include <unistd.h>
15
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16#include <common/macros.hpp>
17#include <common/sessiond-comm/sessiond-comm.hpp>
2912cead 18
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19/*
20 * The run-as process is launched by forking without an exec*() call. This means
21 * that any resource allocated before the run-as worker is launched should be
22 * cleaned-up after the fork(). This callback allows the user to perform this
23 * clean-up.
24 *
25 * Note that the callback will _not_ be invoked if the LTTNG_DEBUG_NOCLONE
26 * environment variable is set as the clean-up is not needed (and may not be
27 * expected).
28 *
29 * A negative return value will cause the run-as process to exit with a non-zero
30 * value.
31 */
32typedef int (*post_fork_cleanup_cb)(void *user_data);
33
e11d277b 34int run_as_mkdir_recursive(const char *path, mode_t mode, uid_t uid, gid_t gid);
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35int run_as_mkdirat_recursive(int dirfd, const char *path, mode_t mode,
36 uid_t uid, gid_t gid);
e11d277b 37int run_as_mkdir(const char *path, mode_t mode, uid_t uid, gid_t gid);
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38int run_as_mkdirat(int dirfd, const char *path, mode_t mode,
39 uid_t uid, gid_t gid);
e11d277b 40int run_as_open(const char *path, int flags, mode_t mode, uid_t uid, gid_t gid);
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41int run_as_openat(int dirfd, const char *filename, int flags, mode_t mode,
42 uid_t uid, gid_t gid);
4628484a 43int run_as_unlink(const char *path, uid_t uid, gid_t gid);
2912cead 44int run_as_unlinkat(int dirfd, const char *filename, uid_t uid, gid_t gid);
93bed9fe 45int run_as_rmdir(const char *path, uid_t uid, gid_t gid);
f75c5439 46int run_as_rmdir_recursive(const char *path, uid_t uid, gid_t gid, int flags);
93bed9fe 47int run_as_rmdirat(int dirfd, const char *path, uid_t uid, gid_t gid);
f75c5439 48int run_as_rmdirat_recursive(int dirfd, const char *path, uid_t uid, gid_t gid, int flags);
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49int run_as_rename(const char *old_name, const char *new_name, uid_t uid, gid_t gid);
50int run_as_renameat(int old_dirfd, const char *old_name,
51 int new_dirfd, const char *new_name, uid_t uid, gid_t gid);
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52int run_as_extract_elf_symbol_offset(int fd, const char* function,
53 uid_t uid, gid_t gid, uint64_t *offset);
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54int run_as_extract_sdt_probe_offsets(int fd, const char *provider_name,
55 const char* probe_name, uid_t uid, gid_t gid,
56 uint64_t **offsets, uint32_t *num_offset);
c73f064a 57int run_as_generate_filter_bytecode(const char *filter_expression,
58daac01 58 const struct lttng_credentials *creds,
2b00d462 59 struct lttng_bytecode **bytecode);
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60int run_as_create_worker(const char *procname,
61 post_fork_cleanup_cb clean_up_func, void *clean_up_user_data);
7567352f 62void run_as_destroy_worker(void);
9ef70f87 63
60b6c79c 64#endif /* _RUNAS_H */
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