1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (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.openairinterface.org/?page_id=698
*
* Author and copyright: Laurent Thomas, open-cells.com
*
* 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.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
#define _GNU_SOURCE
#include <sched.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include <sys/sysinfo.h>
#include <threadPool/thread-pool.h>
void displayList(notifiedFIFO_t *nf) {
int n=0;
notifiedFIFO_elt_t *ptr=nf->outF;
while(ptr) {
printf("element: %d, key: %lu\n",++n,ptr->key);
ptr=ptr->next;
}
printf("End of list: %d elements\n",n);
}
static inline notifiedFIFO_elt_t *pullNotifiedFifoRemember( notifiedFIFO_t *nf, struct one_thread *thr) {
mutexlock(nf->lockF);
while(!nf->outF)
condwait(nf->notifF, nf->lockF);
notifiedFIFO_elt_t *ret=nf->outF;
nf->outF=nf->outF->next;
if (nf->outF==NULL)
nf->inF=NULL;
// For abort feature
thr->runningOnKey=ret->key;
thr->abortFlag=false;
mutexunlock(nf->lockF);
return ret;
}
void *one_thread(void *arg) {
struct one_thread *myThread=(struct one_thread *) arg;
struct thread_pool *tp=myThread->pool;
// Infinite loop to process requests
do {
notifiedFIFO_elt_t *elt=pullNotifiedFifoRemember(&tp->incomingFifo, myThread);
if (tp->measurePerf) elt->startProcessingTime=rdtsc();
elt->processingFunc(NotifiedFifoData(elt));
if (tp->measurePerf) elt->endProcessingTime=rdtsc();
if (elt->reponseFifo) {
// Check if the job is still alive, else it has been aborted
mutexlock(tp->incomingFifo.lockF);
if (myThread->abortFlag)
delNotifiedFIFO_elt(elt);
else
pushNotifiedFIFO(elt->reponseFifo, elt);
myThread->runningOnKey=-1;
mutexunlock(tp->incomingFifo.lockF);
}
} while (true);
}
void initNamedTpool(char *params,tpool_t *pool, bool performanceMeas, char *name) {
memset(pool,0,sizeof(*pool));
char *measr=getenv("threadPoolMeasurements");
pool->measurePerf=performanceMeas;
// force measurement if the output is defined
pool->measurePerf=measr!=NULL;
if (measr) {
mkfifo(measr,0666);
AssertFatal(-1 != (pool->dummyTraceFd=
open(measr, O_RDONLY| O_NONBLOCK)),"");
AssertFatal(-1 != (pool->traceFd=
open(measr, O_WRONLY|O_APPEND|O_NOATIME|O_NONBLOCK)),"");
} else
pool->traceFd=-1;
pool->activated=true;
initNotifiedFIFO(&pool->incomingFifo);
char *saveptr, * curptr;
char *parms_cpy=strdup(params);
pool->nbThreads=0;
pool->restrictRNTI=false;
curptr=strtok_r(parms_cpy,",",&saveptr);
struct one_thread * ptr;
char *tname = (name == NULL ? "Tpool" : name);
while ( curptr!=NULL ) {
int c=toupper(curptr[0]);
switch (c) {
case 'U':
pool->restrictRNTI=true;
break;
case 'N':
pool->activated=false;
break;
default:
ptr=pool->allthreads;
pool->allthreads=(struct one_thread *)malloc(sizeof(struct one_thread));
pool->allthreads->next=ptr;
printf("create a thread for core %d\n", atoi(curptr));
pool->allthreads->coreID=atoi(curptr);
pool->allthreads->id=pool->nbThreads;
pool->allthreads->pool=pool;
//Configure the thread scheduler policy for Linux
// set the thread name for debugging
sprintf(pool->allthreads->name,"%s%d_%d",tname,pool->nbThreads,pool->allthreads->coreID);
threadCreate(&pool->allthreads->threadID, one_thread, (void *)pool->allthreads,
pool->allthreads->name, pool->allthreads->coreID, OAI_PRIORITY_RT);
pool->nbThreads++;
}
curptr=strtok_r(NULL,",",&saveptr);
}
free(parms_cpy);
if (pool->activated && pool->nbThreads==0) {
printf("No servers created in the thread pool, exit\n");
exit(1);
}
}
#ifdef TEST_THREAD_POOL
void exit_function(const char *file, const char *function, const int line, const char *s) {
}
struct testData {
int id;
char txt[30];
};
void processing(void *arg) {
struct testData *in=(struct testData *)arg;
printf("doing: %d, %s, in thr %ld\n",in->id, in->txt,pthread_self() );
sprintf(in->txt,"Done by %ld, job %d", pthread_self(), in->id);
usleep(rand()%100);
printf("done: %d, %s, in thr %ld\n",in->id, in->txt,pthread_self() );
}
int main() {
notifiedFIFO_t myFifo;
initNotifiedFIFO(&myFifo);
pushNotifiedFIFO(&myFifo,newNotifiedFIFO_elt(sizeof(struct testData), 1234,NULL,NULL));
for(int i=10; i>1; i--) {
pushNotifiedFIFO(&myFifo,newNotifiedFIFO_elt(sizeof(struct testData), 1000+i,NULL,NULL));
}
displayList(&myFifo);
notifiedFIFO_elt_t *tmp=pullNotifiedFIFO(&myFifo);
printf("pulled: %lu\n", tmp->key);
displayList(&myFifo);
tmp=pullNotifiedFIFO(&myFifo);
printf("pulled: %lu\n", tmp->key);
displayList(&myFifo);
abortNotifiedFIFO(&myFifo,1005);
printf("aborted 1005\n");
displayList(&myFifo);
pushNotifiedFIFO(&myFifo,newNotifiedFIFO_elt(sizeof(struct testData), 12345678, NULL, NULL));
displayList(&myFifo);
abortNotifiedFIFO(&myFifo,12345678);
printf("aborted 12345678\n");
displayList(&myFifo);
do {
tmp=pollNotifiedFIFO(&myFifo);
if (tmp) {
printf("pulled: %lu\n", tmp->key);
displayList(&myFifo);
} else
printf("Empty list \n");
} while(tmp);
tpool_t pool;
char params[]="1,2,3,u";
initTpool(params,&pool, true);
notifiedFIFO_t worker_back;
initNotifiedFIFO(&worker_back);
for (int i=0; i <1000 ; i++) {
notifiedFIFO_elt_t *work=newNotifiedFIFO_elt(sizeof(struct testData), i, &worker_back, processing);
struct testData *x=(struct testData *)NotifiedFifoData(work);
x->id=i;
pushTpool(&pool, work);
}
do {
tmp=pullTpool(&worker_back,&pool);
if (tmp) {
struct testData *dd=NotifiedFifoData(tmp);
printf("Result: %s\n",dd->txt);
delNotifiedFIFO_elt(tmp);
} else
printf("Empty list \n");
abortTpool(&pool,510);
} while(tmp);
return 0;
}
#endif