tools/perf/util/thread.h

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