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
10struct thread *thread__new(pid_t pid, pid_t tid)
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->tid = tid;
18		self->ppid = -1;
19		self->comm = malloc(32);
20		if (self->comm)
21			snprintf(self->comm, 32, ":%d", self->tid);
22	}
23
24	return self;
25}
26
27void thread__delete(struct thread *self)
28{
29	map_groups__exit(&self->mg);
30	free(self->comm);
31	free(self);
32}
33
34int thread__set_comm(struct thread *self, const char *comm)
35{
36	int err;
37
38	if (self->comm)
39		free(self->comm);
40	self->comm = strdup(comm);
41	err = self->comm == NULL ? -ENOMEM : 0;
42	if (!err) {
43		self->comm_set = true;
44	}
45	return err;
46}
47
48int thread__comm_len(struct thread *self)
49{
50	if (!self->comm_len) {
51		if (!self->comm)
52			return 0;
53		self->comm_len = strlen(self->comm);
54	}
55
56	return self->comm_len;
57}
58
59size_t thread__fprintf(struct thread *thread, FILE *fp)
60{
61	return fprintf(fp, "Thread %d %s\n", thread->tid, thread->comm) +
62	       map_groups__fprintf(&thread->mg, verbose, fp);
63}
64
65void thread__insert_map(struct thread *self, struct map *map)
66{
67	map_groups__fixup_overlappings(&self->mg, map, verbose, stderr);
68	map_groups__insert(&self->mg, map);
69}
70
71int thread__fork(struct thread *self, struct thread *parent)
72{
73	int i;
74
75	if (parent->comm_set) {
76		if (self->comm)
77			free(self->comm);
78		self->comm = strdup(parent->comm);
79		if (!self->comm)
80			return -ENOMEM;
81		self->comm_set = true;
82	}
83
84	for (i = 0; i < MAP__NR_TYPES; ++i)
85		if (map_groups__clone(&self->mg, &parent->mg, i) < 0)
86			return -ENOMEM;
87
88	self->ppid = parent->tid;
89
90	return 0;
91}
92