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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _LIBTHREAD_DB__THREAD_DB_H
#define _LIBTHREAD_DB__THREAD_DB_H
#include <pthread.h>
#include <signal.h>
#include <stdint.h>
#include <sys/procfs.h>
#include <sys/types.h>
#define TD_THR_ANY_USER_FLAGS 0xffffffff
#define TD_THR_LOWEST_PRIORITY -20
#define TD_SIGNO_MASK NULL
/* td_err_e values */
enum {
TD_OK,
TD_ERR,
TD_NOTHR,
TD_NOSV,
TD_NOLWP,
TD_BADPH,
TD_BADTH,
TD_BADSH,
TD_BADTA,
TD_BADKEY,
TD_NOMSG,
TD_NOFPREGS,
TD_NOLIBTHREAD,
TD_NOEVENT,
TD_NOCAPAB,
TD_DBERR,
TD_NOAPLIC,
TD_NOTSD,
TD_MALLOC,
TD_PARTIALREG,
TD_NOXREGS,
TD_VERSION
};
/*
* td_event_e values
* NOTE: There is a max of 32 events
*/
enum {
TD_CREATE,
TD_DEATH
};
/* td_thr_state_e values */
enum {
TD_THR_ANY_STATE,
TD_THR_UNKNOWN,
TD_THR_SLEEP,
TD_THR_ZOMBIE
};
typedef int32_t td_err_e;
typedef uint32_t td_event_e;
typedef uint32_t td_notify_e;
typedef uint32_t td_thr_state_e;
typedef pthread_t thread_t;
typedef struct
{
pid_t pid;
struct ps_prochandle *ph;
} td_thragent_t;
typedef struct
{
pid_t pid;
pid_t tid;
psaddr_t th_unique;
} td_thrhandle_t;
typedef struct
{
td_event_e event;
td_thrhandle_t const * th_p;
union {
void * data;
} msg;
} td_event_msg_t;
typedef struct
{
uint32_t events;
} td_thr_events_t;
typedef struct
{
union {
void * bptaddr;
} u;
} td_notify_t;
typedef struct
{
td_thr_state_e ti_state;
thread_t ti_tid; // pthread's id for the thread
int32_t ti_lid; // the kernel's id for the thread
} td_thrinfo_t;
#define td_event_emptyset(set) \
(set)->events = 0
#define td_event_fillset(set) \
(set)->events = 0xffffffff
#define td_event_addset(set, n) \
(set)->events |= (1 << n)
typedef int td_thr_iter_f(td_thrhandle_t const *, void *);
struct ps_prochandle;
#ifdef __cplusplus
extern "C"{
#endif
extern td_err_e td_ta_new(struct ps_prochandle * proc_handle, td_thragent_t ** thread_agent);
extern td_err_e td_ta_delete(td_thragent_t * ta);
extern td_err_e td_ta_set_event(td_thragent_t const * agent, td_thr_events_t * event);
extern td_err_e td_ta_event_addr(td_thragent_t const * agent, td_event_e event, td_notify_t * notify);
extern td_err_e td_ta_clear_event(const td_thragent_t * ta_arg,
td_thr_events_t * event);
extern td_err_e td_ta_event_getmsg(td_thragent_t const * agent, td_event_msg_t * event);
extern td_err_e td_ta_map_lwp2thr(td_thragent_t const * agent, lwpid_t lwpid,
td_thrhandle_t *th);
extern td_err_e td_thr_get_info(td_thrhandle_t const * handle,
td_thrinfo_t * info);
extern td_err_e td_thr_event_enable(const td_thrhandle_t * handle,
int event);
extern td_err_e td_ta_thr_iter(td_thragent_t const * agent, td_thr_iter_f * func, void * cookie,
td_thr_state_e state, int32_t prio, sigset_t * sigmask, uint32_t user_flags);
extern char const ** td_symbol_list(void);
extern td_err_e td_thr_get_info(td_thrhandle_t const * handle, td_thrinfo_t * info);
extern td_err_e td_thr_tlsbase(const td_thrhandle_t*, unsigned long int, psaddr_t*);
extern td_err_e td_thr_tls_get_addr(const td_thrhandle_t*, psaddr_t, size_t, psaddr_t*);
#ifdef __cplusplus
}
#endif
#endif
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