stasis-aries-wal/test/stasis/check_concurrentRingbuffer.c

217 lines
7.7 KiB
C

/*---
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THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
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GOVERNMENT USE: If you are acquiring this software on behalf of the
U.S. government, the Government shall have only "Restricted Rights" in
the software and related documentation as defined in the Federal
Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you are
acquiring the software on behalf of the Department of Defense, the
software shall be classified as "Commercial Computer Software" and the
Government shall have only "Restricted Rights" as defined in Clause
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authors grant the U.S. Government and others acting in its behalf
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terms specified in this license.
---*/
#include "../check_includes.h"
#include <stasis/util/ringbuffer.h>
#include <assert.h>
#include <sys/time.h>
#include <time.h>
#define LOG_NAME "check_concurrentRingbuffer.log"
/**
@test
*/
#define NUM_ENTRIES 10000
START_TEST(ringBufferSmokeTest) {
stasis_ringbuffer_t * ring = stasis_ringbuffer_init(12, 0);
assert((void*)RING_VOLATILE == stasis_ringbuffer_nb_get_rd_buf(ring, 0, 1));
int64_t off = stasis_ringbuffer_nb_reserve_space(ring, 4*900);
assert(off != RING_FULL && off != RING_TORN && off != RING_VOLATILE);
void * buf = stasis_ringbuffer_get_wr_buf(ring, off, 4*900);
int64_t off2 = stasis_ringbuffer_nb_reserve_space(ring, 4*400);
assert(off2 == RING_FULL);
stasis_ringbuffer_advance_write_tail(ring, 4*300);
const void * buf3 = stasis_ringbuffer_nb_get_rd_buf(ring, 0,4*300);
assert(buf3 == buf);
stasis_ringbuffer_advance_read_tail(ring, 4*300);
int64_t off4 = stasis_ringbuffer_nb_reserve_space(ring, 4*400);
assert(off4 != RING_FULL && off4 != RING_TORN && off4 != RING_VOLATILE);
// XXX stasis_ringbuffer_deinit(ring);
} END_TEST
#define PROD_CONS_SIZE (100L * 1024L * 1024L)
static void * consumerWorker(void * arg) {
stasis_ringbuffer_t * ring = arg;
int64_t cursor = 0;
while(cursor < PROD_CONS_SIZE) {
int64_t rnd_size = myrandom(2048);
if(rnd_size + cursor > PROD_CONS_SIZE) { rnd_size = PROD_CONS_SIZE - cursor; }
byte const * rd_buf = stasis_ringbuffer_get_rd_buf(ring, RING_NEXT, &rnd_size);
for(uint64_t i = 0; i < rnd_size; i++) {
// printf("R[%lld] (addr=%lld) val = %d (%d)\n", cursor+i, (long long)(rd_buf)+i, rd_buf[i], (cursor+i)%250);
assert(rd_buf[i] == ((cursor + i)%250));
}
cursor += rnd_size;
stasis_ringbuffer_advance_read_tail(ring, cursor);
}
return 0;
}
static void * producerWorker(void * arg) {
stasis_ringbuffer_t * ring = arg;
int64_t cursor = 0;
while(cursor < PROD_CONS_SIZE) {
int rnd_size = myrandom(2048);
if(rnd_size + cursor > PROD_CONS_SIZE) { rnd_size = PROD_CONS_SIZE - cursor; }
int64_t wr_off = stasis_ringbuffer_reserve_space(ring, rnd_size, 0);
assert(wr_off == cursor);
byte * wr_buf = stasis_ringbuffer_get_wr_buf(ring, wr_off, rnd_size);
for(uint64_t i = 0; i < rnd_size; i++) {
wr_buf[i] = (cursor + i)%250;
// printf("W[%d] (addr=%lld) val = %d\n", cursor+i, (long long)(wr_buf)+i, wr_buf[i]);
}
cursor += rnd_size;
stasis_ringbuffer_advance_write_tail(ring, cursor);
}
return 0;
}
START_TEST(ringBufferProducerConsumerTest) {
stasis_ringbuffer_t * ring = stasis_ringbuffer_init(12, 0);
pthread_t reader, writer;
pthread_create(&reader, 0, consumerWorker, ring);
pthread_create(&writer, 0, producerWorker, ring);
pthread_join(reader, 0);
pthread_join(writer, 0);
// XXX stasis_ringbuffer_deinit(ring);
} END_TEST
#define NUM_READERS 20
#define NUM_WRITERS NUM_READERS
#define BYTES_PER_THREAD (10L * 1000L * 1000L)
typedef struct {
pthread_mutex_t wr_mut;
stasis_ringbuffer_t * ring;
} arg;
static void * concurrentReader(void * argp) {
arg * a = argp;
stasis_ringbuffer_t * ring = a->ring;
uint64_t cursor = 0;
int64_t rd_handle;
while(cursor < BYTES_PER_THREAD) {
int64_t rnd_size = 1+myrandom(2047/NUM_READERS);
if(rnd_size + cursor > BYTES_PER_THREAD) { rnd_size = BYTES_PER_THREAD - cursor; }
stasis_ringbuffer_consume_bytes(ring, &rnd_size, &rd_handle);
byte const * rd_buf = stasis_ringbuffer_get_rd_buf(ring, rd_handle, &rnd_size);
for(uint64_t i = 0; i < rnd_size; i++) {
// printf("R[%lld] (addr=%lld) val = %d (%d)\n", cursor+i, (long long)(rd_buf)+i, rd_buf[i], (cursor+i)%250);
assert(rd_buf[i] == ((rd_handle + i)%250));
}
cursor += rnd_size;
stasis_ringbuffer_read_done(ring, &rd_handle);
}
return 0;
}
static void * concurrentWriter(void * argp) {
arg * a = argp;
stasis_ringbuffer_t * ring = a->ring;
uint64_t cursor = 0;
int64_t wr_handle;
while(cursor < BYTES_PER_THREAD) {
int rnd_size = 1+myrandom(2047/NUM_WRITERS);
if(rnd_size + cursor > BYTES_PER_THREAD) { rnd_size = BYTES_PER_THREAD- cursor; }
stasis_ringbuffer_reserve_space(ring, rnd_size, &wr_handle);
byte * wr_buf = stasis_ringbuffer_get_wr_buf(ring, wr_handle, rnd_size);
for(uint64_t i = 0; i < rnd_size; i++) {
wr_buf[i] = (wr_handle + i)%250;
// printf("W[%d] (addr=%lld) val = %d\n", cursor+i, (long long)(wr_buf)+i, wr_buf[i]);
}
cursor += rnd_size;
stasis_ringbuffer_write_done(ring, &wr_handle);
}
return 0;
}
START_TEST(ringBufferConcurrentProducerConsumerTest) {
arg a = {
PTHREAD_MUTEX_INITIALIZER,
stasis_ringbuffer_init(12, 0),
};
pthread_t readers[NUM_READERS];
pthread_t writers[NUM_WRITERS];
for(int i = 0; i < NUM_READERS; i++) {
pthread_create(&readers[i], 0, concurrentReader, &a);
}
for(int i = 0; i < NUM_WRITERS; i++) {
pthread_create(&writers[i], 0, concurrentWriter, &a);
}
for(int i = 0; i < NUM_READERS; i++) {
pthread_join(readers[i], 0);
}
for(int i = 0; i < NUM_WRITERS; i++) {
pthread_join(writers[i], 0);
}
} END_TEST
Suite * check_suite(void) {
Suite *s = suite_create("ringBuffer");
/* Begin a new test */
TCase *tc = tcase_create("ringBuffer");
/* Sub tests are added, one per line, here */
tcase_add_test(tc, ringBufferSmokeTest);
tcase_add_test(tc, ringBufferProducerConsumerTest);
tcase_add_test(tc, ringBufferConcurrentProducerConsumerTest);
/* --------------------------------------------- */
tcase_add_checked_fixture(tc, setup, teardown);
suite_add_tcase(s, tc);
return s;
}
#include "../check_setup.h"