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put_in_lve_lock_enter.c
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/*
* put_in_lve_lock_enter.c
*
* Created on: Oct 1, 2014
* Author: alexey
*/
#include <stdio.h>
#include <pthread.h>
#include <stdlib.h>
#include <errno.h>
#include <linux/unistd.h>
#include <stdint.h>
#define my_pthread_fastmutex_t pthread_mutex_t
#define my_pthread_fastmutex_lock pthread_mutex_lock
int governor_enter_lve(uint32_t *u0, char *u1){
printf("User %s - %d, governor_enter_lve\n", u1, *u0);
return 0;
}
void governor_lve_exit(uint32_t *u1){
printf("%d, governor_lve_exit\n", *u1);
}
int governor_enter_lve_light(uint32_t *u1){
printf("%d, governor_enter_lve_light\n", *u1);
return 0;
}
void governor_lve_exit_null(){
printf("governor_lve_exit_null\n");
}
int governor_lve_enter_pid(pid_t u1){
printf("%d, governor_lve_enter_pid\n", u1);
}
__thread uint32_t lve_cookie = 0;
pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
typedef struct __mysql_mutex {
pid_t *key;
int is_in_lve;
int is_in_mutex;
int put_in_lve;
int is_no_eneter;
} mysql_mutex;
__thread mysql_mutex *mysql_lve_mutex_governor_ptr = 0;
pthread_mutex_t mtx_mysql_lve_mutex_governor_ptr = PTHREAD_MUTEX_INITIALIZER;
__attribute__((noinline)) void unlock_mutex_lve() {
if (mysql_lve_mutex_governor_ptr) {
if (mysql_lve_mutex_governor_ptr->is_in_lve == 1) {
governor_lve_exit(&lve_cookie);
}
mysql_lve_mutex_governor_ptr->is_no_eneter = 1;
}
printf("unlock_mutex_lve is_in_lve %d is_in_mutex %d is_no_eneter %d put_in_lve %d\n", mysql_lve_mutex_governor_ptr->is_in_lve, mysql_lve_mutex_governor_ptr->is_in_mutex, mysql_lve_mutex_governor_ptr->is_no_eneter, mysql_lve_mutex_governor_ptr->put_in_lve);
}
__attribute__((noinline)) void lock_mutex_lve() {
if (mysql_lve_mutex_governor_ptr) {
if ((mysql_lve_mutex_governor_ptr->is_in_lve == 2)
&& governor_enter_lve_light) {
if (!governor_enter_lve_light(&lve_cookie)) {
mysql_lve_mutex_governor_ptr->is_in_lve = 1;
} else {
mysql_lve_mutex_governor_ptr->is_in_lve = 0;
}
}
mysql_lve_mutex_governor_ptr->is_no_eneter = 0;
}
printf("lock_mutex_lve is_in_lve %d is_in_mutex %d is_no_eneter %d put_in_lve %d\n", mysql_lve_mutex_governor_ptr->is_in_lve, mysql_lve_mutex_governor_ptr->is_in_mutex, mysql_lve_mutex_governor_ptr->is_no_eneter, mysql_lve_mutex_governor_ptr->put_in_lve);
}
__attribute__((noinline)) void lve_thr_exit() {
if (mysql_lve_mutex_governor_ptr && mysql_lve_mutex_governor_ptr->is_in_lve
== 1) {
governor_lve_exit(&lve_cookie);
mysql_lve_mutex_governor_ptr->is_in_lve = 0;
}
printf("lve_thr_exit is_in_lve %d is_in_mutex %d is_no_eneter %d put_in_lve %d\n", mysql_lve_mutex_governor_ptr->is_in_lve, mysql_lve_mutex_governor_ptr->is_in_mutex, mysql_lve_mutex_governor_ptr->is_no_eneter, mysql_lve_mutex_governor_ptr->put_in_lve);
}
__attribute__((noinline)) int put_in_lve(char *user) {
if (mysql_lve_mutex_governor_ptr) {
if (!governor_enter_lve(&lve_cookie, user)) {
mysql_lve_mutex_governor_ptr->is_in_lve = 1;
}
mysql_lve_mutex_governor_ptr->is_in_mutex = 0;
}
printf("put_in_lve is_in_lve %d is_in_mutex %d is_no_eneter %d put_in_lve %d\n", mysql_lve_mutex_governor_ptr->is_in_lve, mysql_lve_mutex_governor_ptr->is_in_mutex, mysql_lve_mutex_governor_ptr->is_no_eneter, mysql_lve_mutex_governor_ptr->put_in_lve);
return 0;
}
__attribute__((noinline)) int my_pthread_lvemutex_lock(my_pthread_fastmutex_t *mp) {
if (mysql_lve_mutex_governor_ptr) {
if (mysql_lve_mutex_governor_ptr->is_in_lve == 1) {
governor_lve_exit(&lve_cookie);
mysql_lve_mutex_governor_ptr->is_in_lve = 2;
} else if (mysql_lve_mutex_governor_ptr->is_in_lve > 1) {
mysql_lve_mutex_governor_ptr->is_in_lve++;
} /*else if (mysql_lve_mutex_governor_ptr->put_in_lve
&& !mysql_lve_mutex_governor_ptr->is_in_mutex) {
//governor_lve_exit_null();
mysql_lve_mutex_governor_ptr->put_in_lve = 0;
mysql_lve_mutex_governor_ptr->is_in_lve = 2;
}*/
mysql_lve_mutex_governor_ptr->is_in_mutex++;
}
printf("my_pthread_lvemutex_lock is_in_lve %d is_in_mutex %d is_no_eneter %d put_in_lve %d\n", mysql_lve_mutex_governor_ptr->is_in_lve, mysql_lve_mutex_governor_ptr->is_in_mutex, mysql_lve_mutex_governor_ptr->is_no_eneter, mysql_lve_mutex_governor_ptr->put_in_lve);
return my_pthread_fastmutex_lock(mp);
}
__attribute__((noinline)) int my_pthread_lvemutex_trylock(pthread_mutex_t *mutex) {
if (mysql_lve_mutex_governor_ptr) {
if (mysql_lve_mutex_governor_ptr->is_in_lve == 1) {
governor_lve_exit(&lve_cookie);
}
}
int ret = pthread_mutex_trylock(mutex);
if (mysql_lve_mutex_governor_ptr) {
if (ret != EBUSY){
if (mysql_lve_mutex_governor_ptr->is_in_lve == 1) {
mysql_lve_mutex_governor_ptr->is_in_lve = 2;
} else if (mysql_lve_mutex_governor_ptr->is_in_lve > 1) {
mysql_lve_mutex_governor_ptr->is_in_lve++;
}
mysql_lve_mutex_governor_ptr->is_in_mutex++;
} else {
if (mysql_lve_mutex_governor_ptr->is_in_lve == 1){
if (!governor_enter_lve_light(&lve_cookie)) {
mysql_lve_mutex_governor_ptr->is_in_lve = 1;
} else {
mysql_lve_mutex_governor_ptr->is_in_lve = 0;
}
}
}
}
printf("my_pthread_lvemutex_trylock is_in_lve %d is_in_mutex %d is_no_eneter %d put_in_lve %d\n", mysql_lve_mutex_governor_ptr->is_in_lve, mysql_lve_mutex_governor_ptr->is_in_mutex, mysql_lve_mutex_governor_ptr->is_no_eneter, mysql_lve_mutex_governor_ptr->put_in_lve);
return ret;
}
__attribute__((noinline)) int my_pthread_lvemutex_unlock(
pthread_mutex_t *mutex) {
int ret = pthread_mutex_unlock(mutex);
if (mysql_lve_mutex_governor_ptr) {
if ((mysql_lve_mutex_governor_ptr->is_in_lve == 2)
&& governor_enter_lve_light) {
if (!governor_enter_lve_light(&lve_cookie)) {
mysql_lve_mutex_governor_ptr->is_in_lve = 1;
}
} else if (mysql_lve_mutex_governor_ptr->is_in_lve > 2) {
mysql_lve_mutex_governor_ptr->is_in_lve--;
}
mysql_lve_mutex_governor_ptr->is_in_mutex--;
/*if (mysql_lve_mutex_governor_ptr->put_in_lve
&& !mysql_lve_mutex_governor_ptr->is_in_mutex) {
if (governor_enter_lve_light && !governor_enter_lve_light(
&lve_cookie)) {
mysql_lve_mutex_governor_ptr->is_in_lve = 1;
mysql_lve_mutex_governor_ptr->put_in_lve = 0;
}
}*/
}
printf("my_pthread_lvemutex_unlock is_in_lve %d is_in_mutex %d is_no_eneter %d put_in_lve %d\n", mysql_lve_mutex_governor_ptr->is_in_lve, mysql_lve_mutex_governor_ptr->is_in_mutex, mysql_lve_mutex_governor_ptr->is_no_eneter, mysql_lve_mutex_governor_ptr->put_in_lve);
return ret;
}
__attribute__((noinline)) void my_reserve_slot() {
if (mysql_lve_mutex_governor_ptr) {
if (mysql_lve_mutex_governor_ptr->is_in_lve == 1) {
governor_lve_exit(&lve_cookie);
mysql_lve_mutex_governor_ptr->is_in_lve = 2;
} else if (mysql_lve_mutex_governor_ptr->is_in_lve > 1) {
mysql_lve_mutex_governor_ptr->is_in_lve++;
} /*else if (mysql_lve_mutex_governor_ptr->put_in_lve
&& !mysql_lve_mutex_governor_ptr->is_in_mutex) {
//governor_lve_exit_null();
mysql_lve_mutex_governor_ptr->put_in_lve = 0;
mysql_lve_mutex_governor_ptr->is_in_lve = 2;
}*/
mysql_lve_mutex_governor_ptr->is_in_mutex++;
}
printf("my_reserve_slot is_in_lve %d is_in_mutex %d is_no_eneter %d put_in_lve %d\n", mysql_lve_mutex_governor_ptr->is_in_lve, mysql_lve_mutex_governor_ptr->is_in_mutex, mysql_lve_mutex_governor_ptr->is_no_eneter, mysql_lve_mutex_governor_ptr->put_in_lve);
return;
}
__attribute__((noinline)) void my_release_slot() {
if (mysql_lve_mutex_governor_ptr) {
if ((mysql_lve_mutex_governor_ptr->is_in_lve == 2)
&& governor_enter_lve_light) {
if (!governor_enter_lve_light(&lve_cookie)) {
mysql_lve_mutex_governor_ptr->is_in_lve = 1;
}
} else if (mysql_lve_mutex_governor_ptr->is_in_lve > 2) {
mysql_lve_mutex_governor_ptr->is_in_lve--;
}
mysql_lve_mutex_governor_ptr->is_in_mutex--;
/*if (mysql_lve_mutex_governor_ptr->put_in_lve
&& !mysql_lve_mutex_governor_ptr->is_in_mutex) {
if (governor_enter_lve_light && !governor_enter_lve_light(
&lve_cookie)) {
mysql_lve_mutex_governor_ptr->is_in_lve = 1;
mysql_lve_mutex_governor_ptr->put_in_lve = 0;
}
}*/
}
printf("my_release_slot is_in_lve %d is_in_mutex %d is_no_eneter %d put_in_lve %d\n", mysql_lve_mutex_governor_ptr->is_in_lve, mysql_lve_mutex_governor_ptr->is_in_mutex, mysql_lve_mutex_governor_ptr->is_no_eneter, mysql_lve_mutex_governor_ptr->put_in_lve);
return;
}
int cahce(){
pthread_mutex_t mt = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_t mt2 = PTHREAD_MUTEX_INITIALIZER;
my_reserve_slot();
my_pthread_lvemutex_lock(&mt);
my_pthread_lvemutex_lock(&mt2);
my_pthread_lvemutex_unlock(&mt2);
my_pthread_lvemutex_unlock(&mt);
my_release_slot();
}
int main(){
pthread_mutex_t mt = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_t mt1 = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_t mt2 = PTHREAD_MUTEX_INITIALIZER;
mysql_lve_mutex_governor_ptr = malloc(sizeof(mysql_mutex));
put_in_lve("user1");
my_pthread_lvemutex_lock(&mt);
my_pthread_lvemutex_lock(&mt1);
my_pthread_lvemutex_lock(&mt2);
my_reserve_slot();
cahce();
my_release_slot();
my_pthread_lvemutex_unlock(&mt2);
my_pthread_lvemutex_unlock(&mt1);
cahce();
my_pthread_lvemutex_unlock(&mt);
cahce();
my_reserve_slot();
my_pthread_lvemutex_lock(&mt1);
my_pthread_lvemutex_unlock(&mt1);
my_release_slot();
my_pthread_lvemutex_lock(&mt1);
my_pthread_lvemutex_unlock(&mt1);
lve_thr_exit();
free(mysql_lve_mutex_governor_ptr);
return 0;
}