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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
#include <fluent-bit/flb_info.h>
#include <fluent-bit/flb_mem.h>
#include <fluent-bit/flb_engine.h>
#include <fluent-bit/flb_ring_buffer.h>
#include <fluent-bit/flb_event_loop.h>
#include <fluent-bit/flb_bucket_queue.h>
#include "flb_tests_internal.h"
struct check {
char *buf_a;
char *buf_b;
};
struct check checks[] = {
{"a1", "a2"},
{"b1", "b2"},
{"c1", "c2"},
{"d1", "d2"},
{"e1", "e2"},
};
static void test_basic()
{
int i;
int ret;
int elements;
struct check *c;
struct check *tmp;
struct flb_ring_buffer *rb;
elements = sizeof(checks) / sizeof(struct check);
rb = flb_ring_buffer_create(sizeof(struct check *) * elements);
TEST_CHECK(rb != NULL);
if (!rb) {
exit(EXIT_FAILURE);
}
for (i = 0; i < elements; i++) {
c = &checks[i];
ret = flb_ring_buffer_write(rb, (void *) &c, sizeof(c));
TEST_CHECK(ret == 0);
}
/* try to write another record, it must fail */
tmp = c;
ret = flb_ring_buffer_write(rb, (void *) &tmp, sizeof(tmp));
TEST_CHECK(ret == -1);
c = NULL;
/* consume one entry */
ret = flb_ring_buffer_read(rb, (void *) &c, sizeof(c));
TEST_CHECK(ret == 0);
/* the consumed entry must be equal to the first one */
c = &checks[0];
TEST_CHECK(strcmp(c->buf_a, "a1") == 0 && strcmp(c->buf_b, "a2") ==0);
/* try 'again' to write 'c2', it should succeed */
ret = flb_ring_buffer_write(rb, (void *) &tmp, sizeof(tmp));
TEST_CHECK(ret == 0);
flb_ring_buffer_destroy(rb);
}
static void test_smart_flush()
{
int i;
int ret;
int n_events;
int elements;
size_t slots;
uint64_t window;
struct check *c;
struct check *tmp;
int flush_event_detected;
char signal_buffer[512];
struct mk_event *event;
struct mk_event_loop *evl;
struct flb_ring_buffer *rb;
struct flb_bucket_queue *bktq;
#ifdef _WIN32
WSADATA wsa_data;
WSAStartup(0x0201, &wsa_data);
#endif
evl = mk_event_loop_create(100);
TEST_CHECK(evl != NULL);
if (!evl) {
exit(EXIT_FAILURE);
}
bktq = flb_bucket_queue_create(10);
TEST_CHECK(bktq != NULL);
if (!bktq) {
exit(EXIT_FAILURE);
}
elements = sizeof(checks) / sizeof(struct check);
slots = elements * 2;
window = (((double) (elements + 1)) / slots) * 100;
/* The slot count was chosen to trigger the flush request
* after writing the predefined elements + 1
*/
rb = flb_ring_buffer_create(sizeof(struct check *) * slots);
TEST_CHECK(rb != NULL);
if (!rb) {
exit(EXIT_FAILURE);
}
ret = flb_ring_buffer_add_event_loop(rb, evl, window);
TEST_CHECK(ret == 0);
if (ret) {
exit(EXIT_FAILURE);
}
for (i = 0; i < elements; i++) {
c = &checks[i];
ret = flb_ring_buffer_write(rb, (void *) &c, sizeof(c));
TEST_CHECK(ret == 0);
n_events = mk_event_wait_2(evl, 0);
TEST_CHECK(n_events == 0);
}
/* write another record, a signal must be produced */
ret = flb_ring_buffer_write(rb, (void *) &tmp, sizeof(tmp));
TEST_CHECK(ret == 0);
n_events = mk_event_wait_2(evl, 0);
TEST_CHECK(n_events == 1);
flush_event_detected = FLB_FALSE;
flb_event_priority_live_foreach(event, bktq, evl, 10) {
if(event->type == FLB_ENGINE_EV_THREAD_INPUT) {
flb_pipe_r(event->fd, signal_buffer, sizeof(signal_buffer));
flush_event_detected = FLB_TRUE;
}
}
TEST_CHECK(flush_event_detected == FLB_TRUE);
/* write another record, a signal must not be produced because the previous one
* was not acknowledged by setting `flush_pending` to `FLB_FALSE`
*/
ret = flb_ring_buffer_write(rb, (void *) &tmp, sizeof(tmp));
TEST_CHECK(ret == 0);
n_events = mk_event_wait_2(evl, 0);
TEST_CHECK(n_events == 0);
flb_ring_buffer_destroy(rb);
flb_bucket_queue_destroy(bktq);
mk_event_loop_destroy(evl);
}
TEST_LIST = {
{ "basic", test_basic},
{ "smart_flush", test_smart_flush},
{ 0 }
};
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