#include "../perf.h"#include <stdlib.h>#include <stdio.h>#include <string.h>#include "session.h"#include "thread.h"#include "util.h"#include "debug.h"#include "comm.h" struct thread *thread__new(pid_t pid, pid_t tid){	char *comm_str;	struct comm *comm;	struct thread *thread = zalloc(sizeof(*thread)); 	if (thread != NULL) {		map_groups__init(&thread->mg);		thread->pid_ = pid;		thread->tid = tid;		thread->ppid = -1;		INIT_LIST_HEAD(&thread->comm_list); 		comm_str = malloc(32);		if (!comm_str)			goto err_thread; 		snprintf(comm_str, 32, ":%d", tid);		comm = comm__new(comm_str, 0);		free(comm_str);		if (!comm)			goto err_thread; 		list_add(&comm->list, &thread->comm_list);	} 	return thread; err_thread:	free(thread);	return NULL;} void thread__delete(struct thread *thread){	struct comm *comm, *tmp; 	map_groups__exit(&thread->mg);	list_for_each_entry_safe(comm, tmp, &thread->comm_list, list) {		list_del(&comm->list);		comm__free(comm);	} 	free(thread);} struct comm *thread__comm(const struct thread *thread){	if (list_empty(&thread->comm_list))		return NULL; 	return list_first_entry(&thread->comm_list, struct comm, list);} /* CHECKME: time should always be 0 if event aren't ordered */int thread__set_comm(struct thread *thread, const char *str, u64 timestamp){	struct comm *new, *curr = thread__comm(thread); 	/* Override latest entry if it had no specific time coverage */	if (!curr->start) {		comm__override(curr, str, timestamp);	} else {		new = comm__new(str, timestamp);		if (!new)			return -ENOMEM;		list_add(&new->list, &thread->comm_list);	} 	thread->comm_set = true; 	return 0;} const char *thread__comm_str(const struct thread *thread){	const struct comm *comm = thread__comm(thread); 	if (!comm)		return NULL; 	return comm__str(comm);} /* CHECKME: it should probably better return the max comm len from its comm list */int thread__comm_len(struct thread *thread){	if (!thread->comm_len) {		const char *comm = thread__comm_str(thread);		if (!comm)			return 0;		thread->comm_len = strlen(comm);	} 	return thread->comm_len;} size_t thread__fprintf(struct thread *thread, FILE *fp){	return fprintf(fp, "Thread %d %s\n", thread->tid, thread__comm_str(thread)) +	       map_groups__fprintf(&thread->mg, verbose, fp);} void thread__insert_map(struct thread *thread, struct map *map){	map_groups__fixup_overlappings(&thread->mg, map, verbose, stderr);	map_groups__insert(&thread->mg, map);} int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp){	int i, err; 	if (parent->comm_set) {		const char *comm = thread__comm_str(parent);		if (!comm)			return -ENOMEM;		err = thread__set_comm(thread, comm, timestamp);		if (!err)			return err;		thread->comm_set = true;	} 	for (i = 0; i < MAP__NR_TYPES; ++i)		if (map_groups__clone(&thread->mg, &parent->mg, i) < 0)			return -ENOMEM; 	thread->ppid = parent->tid; 	return 0;}