1 #include "../perf.h" 2 #include <stdlib.h> 3 #include <stdio.h> 4 #include <string.h> 5 #include "session.h" 6 #include "thread.h" 7 #include "util.h" 8 #include "debug.h" 9 10 struct thread *thread__new(pid_t pid) 11 { 12 struct thread *self = zalloc(sizeof(*self)); 13 14 if (self != NULL) { 15 map_groups__init(&self->mg); 16 self->pid = pid; 17 self->comm = malloc(32); 18 if (self->comm) 19 snprintf(self->comm, 32, ":%d", self->pid); 20 } 21 22 return self; 23 } 24 25 void thread__delete(struct thread *self) 26 { 27 map_groups__exit(&self->mg); 28 free(self->comm); 29 free(self); 30 } 31 32 int thread__set_comm(struct thread *self, const char *comm) 33 { 34 int err; 35 36 if (self->comm) 37 free(self->comm); 38 self->comm = strdup(comm); 39 err = self->comm == NULL ? -ENOMEM : 0; 40 if (!err) { 41 self->comm_set = true; 42 } 43 return err; 44 } 45 46 int thread__comm_len(struct thread *self) 47 { 48 if (!self->comm_len) { 49 if (!self->comm) 50 return 0; 51 self->comm_len = strlen(self->comm); 52 } 53 54 return self->comm_len; 55 } 56 57 static size_t thread__fprintf(struct thread *self, FILE *fp) 58 { 59 return fprintf(fp, "Thread %d %s\n", self->pid, self->comm) + 60 map_groups__fprintf(&self->mg, verbose, fp); 61 } 62 63 void thread__insert_map(struct thread *self, struct map *map) 64 { 65 map_groups__fixup_overlappings(&self->mg, map, verbose, stderr); 66 map_groups__insert(&self->mg, map); 67 } 68 69 int thread__fork(struct thread *self, struct thread *parent) 70 { 71 int i; 72 73 if (parent->comm_set) { 74 if (self->comm) 75 free(self->comm); 76 self->comm = strdup(parent->comm); 77 if (!self->comm) 78 return -ENOMEM; 79 self->comm_set = true; 80 } 81 82 for (i = 0; i < MAP__NR_TYPES; ++i) 83 if (map_groups__clone(&self->mg, &parent->mg, i) < 0) 84 return -ENOMEM; 85 return 0; 86 } 87 88 size_t machine__fprintf(struct machine *machine, FILE *fp) 89 { 90 size_t ret = 0; 91 struct rb_node *nd; 92 93 for (nd = rb_first(&machine->threads); nd; nd = rb_next(nd)) { 94 struct thread *pos = rb_entry(nd, struct thread, rb_node); 95 96 ret += thread__fprintf(pos, fp); 97 } 98 99 return ret; 100 } 101