| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include "apr_thread_proc.h" |
| #include "apr_errno.h" |
| #include "apr_general.h" |
| #include "apr_atomic.h" |
| #include "errno.h" |
| #include "apr_time.h" |
| #if APR_HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| |
| #if !(defined WIN32) && !(defined NETWARE) |
| #include <pthread.h> |
| #endif |
| |
| apr_pool_t *context; |
| apr_atomic_t y; /* atomic locks */ |
| |
| static apr_status_t check_basic_atomics(volatile apr_atomic_t*p) |
| { |
| apr_atomic_t oldval; |
| apr_uint32_t casval = 0; |
| float object1, object2; |
| #if !(defined NETWARE) |
| volatile void *casptr; |
| #else |
| void *casptr; |
| #endif |
| void *oldptr; |
| |
| apr_atomic_set(&y, 2); |
| printf("%-60s", "testing apr_atomic_dec"); |
| if (apr_atomic_dec(&y) == 0) { |
| fprintf(stderr, "Failed\noldval =%d should not be zero\n", |
| apr_atomic_read(&y)); |
| return APR_EGENERAL; |
| } |
| if (apr_atomic_dec(&y) != 0) { |
| fprintf(stderr, "Failed\noldval =%d should be zero\n", |
| apr_atomic_read(&y)); |
| return APR_EGENERAL; |
| } |
| printf("OK\n"); |
| |
| printf("%-60s", "testing CAS"); |
| oldval = apr_atomic_cas(&casval, 12, 0); |
| if (oldval != 0) { |
| fprintf(stderr, "Failed\noldval =%d should be zero\n", oldval); |
| return APR_EGENERAL; |
| } |
| printf("OK\n"); |
| printf("%-60s", "testing CAS - match non-null"); |
| oldval = apr_atomic_cas(&casval, 23, 12); |
| if (oldval != 12) { |
| fprintf(stderr, "Failed\noldval =%d should be 12 y=%d\n", |
| oldval, casval); |
| return APR_EGENERAL; |
| } |
| printf("OK\n"); |
| printf("%-60s", "testing CAS - no match"); |
| oldval = apr_atomic_cas(&casval, 23, 12); |
| if (oldval != 23) { |
| fprintf(stderr, "Failed\noldval =%d should be 23 y=%d\n", |
| oldval, casval); |
| return APR_EGENERAL; |
| } |
| printf("OK\n"); |
| |
| printf("%-60s", "testing CAS for pointers"); |
| casptr = NULL; |
| oldptr = apr_atomic_casptr(&casptr, &object1, 0); |
| if (oldptr != 0) { |
| fprintf(stderr, "Failed\noldval =%p should be zero\n", oldptr); |
| return APR_EGENERAL; |
| } |
| printf("OK\n"); |
| printf("%-60s", "testing CAS for pointers - match non-null"); |
| oldptr = apr_atomic_casptr(&casptr, &object2, &object1); |
| if (oldptr != &object1) { |
| fprintf(stderr, "Failed\noldval =%p should be %p\n", oldptr, &object1); |
| return APR_EGENERAL; |
| } |
| printf("OK\n"); |
| printf("%-60s", "testing CAS for pointers - no match"); |
| oldptr = apr_atomic_casptr(&casptr, &object2, &object1); |
| if (oldptr != &object2) { |
| fprintf(stderr, "Failed\noldval =%p should be %p\n", oldptr, &object2); |
| return APR_EGENERAL; |
| } |
| printf("OK\n"); |
| |
| printf("%-60s", "testing add"); |
| apr_atomic_set(&y, 23); |
| apr_atomic_add(&y, 4); |
| if (apr_atomic_read(&y) != 27) { |
| fprintf(stderr, |
| "Failed\nAtomic Add doesn't add up ;( expected 27 got %d\n", |
| oldval); |
| return APR_EGENERAL; |
| } |
| |
| printf("OK\n"); |
| printf("%-60s", "testing add/inc"); |
| apr_atomic_set(&y, 0); |
| apr_atomic_add(&y, 20); |
| apr_atomic_inc(&y); |
| if (apr_atomic_read(&y) != 21) { |
| fprintf(stderr, "Failed.\natomics do not add up\n"); |
| return APR_EGENERAL; |
| } |
| fprintf(stdout, "OK\n"); |
| |
| return APR_SUCCESS; |
| } |
| |
| #if !APR_HAS_THREADS |
| int main(void) |
| { |
| apr_status_t rv; |
| |
| apr_initialize(); |
| |
| fprintf(stderr, |
| "This program won't work fully on this platform because there is no " |
| "support for threads.\n"); |
| if (apr_pool_create(&context, NULL) != APR_SUCCESS) { |
| fflush(stdout); |
| fprintf(stderr, "Failed.\nCould not initialize\n"); |
| exit(-1); |
| } |
| rv = apr_atomic_init(context); |
| if (rv != APR_SUCCESS) { |
| fprintf(stderr, "Failed.\nCould not initialize atomics\n"); |
| exit(-1); |
| } |
| rv = check_basic_atomics(&y); |
| if (rv != APR_SUCCESS) { |
| fprintf(stderr, "Failed.\n"); |
| exit(-1); |
| } |
| return 0; |
| } |
| #else /* !APR_HAS_THREADS */ |
| |
| void * APR_THREAD_FUNC thread_func_mutex(apr_thread_t *thd, void *data); |
| void * APR_THREAD_FUNC thread_func_atomic(apr_thread_t *thd, void *data); |
| void * APR_THREAD_FUNC thread_func_none(apr_thread_t *thd, void *data); |
| |
| apr_thread_mutex_t *thread_lock; |
| volatile long x = 0; /* mutex locks */ |
| volatile long z = 0; /* no locks */ |
| int value = 0; |
| apr_status_t exit_ret_val = 123; /* just some made up number to check on later */ |
| |
| #define NUM_THREADS 50 |
| #define NUM_ITERATIONS 20000 |
| void * APR_THREAD_FUNC thread_func_mutex(apr_thread_t *thd, void *data) |
| { |
| int i; |
| |
| for (i = 0; i < NUM_ITERATIONS; i++) { |
| apr_thread_mutex_lock(thread_lock); |
| x++; |
| apr_thread_mutex_unlock(thread_lock); |
| } |
| apr_thread_exit(thd, exit_ret_val); |
| return NULL; |
| } |
| |
| void * APR_THREAD_FUNC thread_func_atomic(apr_thread_t *thd, void *data) |
| { |
| int i; |
| |
| for (i = 0; i < NUM_ITERATIONS ; i++) { |
| apr_atomic_inc(&y); |
| apr_atomic_add(&y, 2); |
| apr_atomic_dec(&y); |
| apr_atomic_dec(&y); |
| } |
| apr_thread_exit(thd, exit_ret_val); |
| return NULL; |
| } |
| |
| void * APR_THREAD_FUNC thread_func_none(apr_thread_t *thd, void *data) |
| { |
| int i; |
| |
| for (i = 0; i < NUM_ITERATIONS ; i++) { |
| z++; |
| } |
| apr_thread_exit(thd, exit_ret_val); |
| return NULL; |
| } |
| |
| int main(int argc, char**argv) |
| { |
| apr_thread_t *t1[NUM_THREADS]; |
| apr_thread_t *t2[NUM_THREADS]; |
| apr_status_t r1[NUM_THREADS]; |
| apr_status_t r2[NUM_THREADS]; |
| apr_status_t s1[NUM_THREADS]; |
| apr_status_t s2[NUM_THREADS]; |
| apr_status_t rv; |
| int i; |
| int mutex; |
| |
| apr_initialize(); |
| |
| if (argc == 2 && argv[1][0] == 'm') { |
| mutex = 1; |
| } |
| else { |
| mutex = 0; |
| } |
| |
| printf("APR Atomic Test\n===============\n\n"); |
| #if !(defined WIN32) && !(defined NETWARE) && !(defined __MVS__) && !(defined DARWIN) |
| pthread_setconcurrency(8); |
| #endif |
| printf("%-60s", "Initializing the context"); |
| if (apr_pool_create(&context, NULL) != APR_SUCCESS) { |
| fflush(stdout); |
| fprintf(stderr, "Failed.\nCould not initialize\n"); |
| exit(-1); |
| } |
| printf("OK\n"); |
| |
| if (mutex == 1) { |
| printf("%-60s", "Initializing the lock"); |
| rv = apr_thread_mutex_create(&thread_lock, APR_THREAD_MUTEX_DEFAULT, |
| context); |
| if (rv != APR_SUCCESS) { |
| fflush(stdout); |
| fprintf(stderr, "Failed\nCould not create lock\n"); |
| exit(-1); |
| } |
| printf("OK\n"); |
| } |
| printf("%-60s", "Initializing the atomics"); |
| rv = apr_atomic_init(context); |
| if (rv != APR_SUCCESS) { |
| fprintf(stderr, "Failed.\n"); |
| exit(-1); |
| } |
| printf("OK\n"); |
| |
| rv = check_basic_atomics(&y); |
| if (rv != APR_SUCCESS) { |
| fprintf(stderr, "Failed.\n"); |
| exit(-1); |
| } |
| apr_atomic_set(&y, 0); |
| |
| printf("%-60s", "Starting all the threads"); |
| for (i = 0; i < NUM_THREADS; i++) { |
| r1[i] = apr_thread_create(&t1[i], NULL, |
| (mutex == 1 ? thread_func_mutex : thread_func_atomic), |
| NULL, context); |
| r2[i] = apr_thread_create(&t2[i], NULL, thread_func_none, NULL, |
| context); |
| if (r1[i] != APR_SUCCESS || r2[i] != APR_SUCCESS ) { |
| fflush(stdout); |
| fprintf(stderr, "Failed\nError starting thread in group %d\n",i); |
| exit(-1); |
| } |
| } |
| printf("OK\n"); |
| |
| printf("%-60s\n", "Waiting for threads to exit"); |
| printf("%-60s", "(Note that this may take a while to complete.)"); |
| fflush(stdout); |
| |
| for (i = 0; i < NUM_THREADS; i++) { |
| apr_thread_join(&s1[i], t1[i]); |
| apr_thread_join(&s2[i], t2[i]); |
| if (s1[i] != exit_ret_val || s2[i] != exit_ret_val) { |
| fprintf(stderr, |
| "Invalid return value\n" |
| "Got %d/%d, but expected %d for all \n", |
| s1[i], s2[i], exit_ret_val); |
| } |
| } |
| printf("OK\n"); |
| |
| if (mutex == 1) { |
| printf("%-60s", "Checking if mutex locks worked"); |
| if (x != NUM_THREADS * NUM_ITERATIONS) { |
| fflush(stdout); |
| fprintf(stderr, |
| "No!\nThe locks didn't work?? x = %ld instead of %ld\n", |
| x, |
| (long)NUM_THREADS * NUM_ITERATIONS); |
| } |
| else { |
| printf("OK\n"); |
| } |
| } |
| else { |
| printf("%-60s", "Checking if atomic worked"); |
| if (apr_atomic_read(&y) != NUM_THREADS * NUM_ITERATIONS) { |
| fflush(stdout); |
| fprintf(stderr, |
| "No!\nThe atomics didn't work?? y = %ld instead of %ld\n", |
| (long)apr_atomic_read(&y), |
| (long)NUM_THREADS * NUM_ITERATIONS); |
| } |
| else { |
| printf("OK\n"); |
| } |
| } |
| printf("%-60s", "Checking if nolock worked"); |
| if (z != NUM_THREADS * NUM_ITERATIONS) { |
| fflush(stdout); |
| fprintf(stderr, |
| "no surprise\n" |
| "The no-locks didn't work. z = %ld instead of %ld\n", |
| z, |
| (long)NUM_THREADS * NUM_ITERATIONS); |
| } |
| else { |
| printf("OK\n"); |
| } |
| |
| return 0; |
| } |
| |
| #endif /* !APR_HAS_THREADS */ |