LXR linux/tools/perf/util/thread.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __PERF_THREAD_H
   3#define __PERF_THREAD_H
   4
   5#include <linux/refcount.h>
   6#include <linux/rbtree.h>
   7#include <linux/list.h>
   8#include <unistd.h>
   9#include <sys/types.h>
  10#include "symbol.h"
  11#include <strlist.h>
  12#include <intlist.h>
  13#include "rwsem.h"
  14
  15struct thread_stack;
  16struct unwind_libunwind_ops;
  17
  18struct thread {
  19        union {
  20                struct rb_node   rb_node;
  21                struct list_head node;
  22        };
  23        struct map_groups       *mg;
  24        pid_t                   pid_; /* Not all tools update this */
  25        pid_t                   tid;
  26        pid_t                   ppid;
  27        int                     cpu;
  28        refcount_t              refcnt;
  29        bool                    comm_set;
  30        int                     comm_len;
  31        bool                    dead; /* if set thread has exited */
  32        struct list_head        namespaces_list;
  33        struct rw_semaphore     namespaces_lock;
  34        struct list_head        comm_list;
  35        struct rw_semaphore     comm_lock;
  36        u64                     db_id;
  37
  38        void                    *priv;
  39        struct thread_stack     *ts;
  40        struct nsinfo           *nsinfo;
  41#ifdef HAVE_LIBUNWIND_SUPPORT
  42        void                            *addr_space;
  43        struct unwind_libunwind_ops     *unwind_libunwind_ops;
  44#endif
  45};
  46
  47struct machine;
  48struct namespaces;
  49struct comm;
  50
  51struct thread *thread__new(pid_t pid, pid_t tid);
  52int thread__init_map_groups(struct thread *thread, struct machine *machine);
  53void thread__delete(struct thread *thread);
  54
  55struct thread *thread__get(struct thread *thread);
  56void thread__put(struct thread *thread);
  57
  58static inline void __thread__zput(struct thread **thread)
  59{
  60        thread__put(*thread);
  61        *thread = NULL;
  62}
  63
  64#define thread__zput(thread) __thread__zput(&thread)
  65
  66static inline void thread__exited(struct thread *thread)
  67{
  68        thread->dead = true;
  69}
  70
  71struct namespaces *thread__namespaces(const struct thread *thread);
  72int thread__set_namespaces(struct thread *thread, u64 timestamp,
  73                           struct namespaces_event *event);
  74
  75int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
  76                       bool exec);
  77static inline int thread__set_comm(struct thread *thread, const char *comm,
  78                                   u64 timestamp)
  79{
  80        return __thread__set_comm(thread, comm, timestamp, false);
  81}
  82
  83int thread__set_comm_from_proc(struct thread *thread);
  84
  85int thread__comm_len(struct thread *thread);
  86struct comm *thread__comm(const struct thread *thread);
  87struct comm *thread__exec_comm(const struct thread *thread);
  88const char *thread__comm_str(const struct thread *thread);
  89int thread__insert_map(struct thread *thread, struct map *map);
  90int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);
  91size_t thread__fprintf(struct thread *thread, FILE *fp);
  92
  93struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
  94
  95struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
  96                             struct addr_location *al);
  97
  98struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
  99                                   u64 addr, struct addr_location *al);
 100
 101void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,
 102                                        struct addr_location *al);
 103
 104static inline void *thread__priv(struct thread *thread)
 105{
 106        return thread->priv;
 107}
 108
 109static inline void thread__set_priv(struct thread *thread, void *p)
 110{
 111        thread->priv = p;
 112}
 113
 114static inline bool thread__is_filtered(struct thread *thread)
 115{
 116        if (symbol_conf.comm_list &&
 117            !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
 118                return true;
 119        }
 120
 121        if (symbol_conf.pid_list &&
 122            !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
 123                return true;
 124        }
 125
 126        if (symbol_conf.tid_list &&
 127            !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
 128                return true;
 129        }
 130
 131        return false;
 132}
 133
 134#endif  /* __PERF_THREAD_H */
 135