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        char                    shortname[3];
  30        bool                    comm_set;
  31        int                     comm_len;
  32        bool                    dead; /* if set thread has exited */
  33        struct list_head        namespaces_list;
  34        struct rw_semaphore     namespaces_lock;
  35        struct list_head        comm_list;
  36        struct rw_semaphore     comm_lock;
  37        u64                     db_id;
  38
  39        void                    *priv;
  40        struct thread_stack     *ts;
  41        struct nsinfo           *nsinfo;
  42#ifdef HAVE_LIBUNWIND_SUPPORT
  43        void                            *addr_space;
  44        struct unwind_libunwind_ops     *unwind_libunwind_ops;
  45#endif
  46};
  47
  48struct machine;
  49struct namespaces;
  50struct comm;
  51
  52struct thread *thread__new(pid_t pid, pid_t tid);
  53int thread__init_map_groups(struct thread *thread, struct machine *machine);
  54void thread__delete(struct thread *thread);
  55
  56struct thread *thread__get(struct thread *thread);
  57void thread__put(struct thread *thread);
  58
  59static inline void __thread__zput(struct thread **thread)
  60{
  61        thread__put(*thread);
  62        *thread = NULL;
  63}
  64
  65#define thread__zput(thread) __thread__zput(&thread)
  66
  67static inline void thread__exited(struct thread *thread)
  68{
  69        thread->dead = true;
  70}
  71
  72struct namespaces *thread__namespaces(const struct thread *thread);
  73int thread__set_namespaces(struct thread *thread, u64 timestamp,
  74                           struct namespaces_event *event);
  75
  76int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
  77                       bool exec);
  78static inline int thread__set_comm(struct thread *thread, const char *comm,
  79                                   u64 timestamp)
  80{
  81        return __thread__set_comm(thread, comm, timestamp, false);
  82}
  83
  84int thread__set_comm_from_proc(struct thread *thread);
  85
  86int thread__comm_len(struct thread *thread);
  87struct comm *thread__comm(const struct thread *thread);
  88struct comm *thread__exec_comm(const struct thread *thread);
  89const char *thread__comm_str(const struct thread *thread);
  90int thread__insert_map(struct thread *thread, struct map *map);
  91int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);
  92size_t thread__fprintf(struct thread *thread, FILE *fp);
  93
  94struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
  95
  96void thread__find_addr_map(struct thread *thread,
  97                           u8 cpumode, enum map_type type, u64 addr,
  98                           struct addr_location *al);
  99
 100void thread__find_addr_location(struct thread *thread,
 101                                u8 cpumode, enum map_type type, u64 addr,
 102                                struct addr_location *al);
 103
 104void thread__find_cpumode_addr_location(struct thread *thread,
 105                                        enum map_type type, u64 addr,
 106                                        struct addr_location *al);
 107
 108static inline void *thread__priv(struct thread *thread)
 109{
 110        return thread->priv;
 111}
 112
 113static inline void thread__set_priv(struct thread *thread, void *p)
 114{
 115        thread->priv = p;
 116}
 117
 118static inline bool thread__is_filtered(struct thread *thread)
 119{
 120        if (symbol_conf.comm_list &&
 121            !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
 122                return true;
 123        }
 124
 125        if (symbol_conf.pid_list &&
 126            !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
 127                return true;
 128        }
 129
 130        if (symbol_conf.tid_list &&
 131            !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
 132                return true;
 133        }
 134
 135        return false;
 136}
 137
 138#endif  /* __PERF_THREAD_H */
 139