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/************************************************************************
The test module for the operating system interface
(c) 1995 Innobase Oy
Created 9/27/1995 Heikki Tuuri
*************************************************************************/
#include "../os0thread.h"
#include "../os0shm.h"
#include "../os0proc.h"
#include "../os0sync.h"
#include "../os0file.h"
#include "ut0ut.h"
#include "sync0sync.h"
#include "mem0mem.h"
ulint last_thr = 1;
byte global_buf[1000000];
os_file_t file;
os_file_t file2;
os_event_t gl_ready;
mutex_t ios_mutex;
ulint ios;
/************************************************************************
Io-handler thread function. */
ulint
handler_thread(
/*===========*/
void* arg)
{
ulint segment;
void* mess;
ulint i;
bool ret;
segment = *((ulint*)arg);
printf("Thread %lu starts\n", segment);
for (i = 0;; i++) {
ret = os_aio_wait(segment, &mess);
mutex_enter(&ios_mutex);
ios++;
mutex_exit(&ios_mutex);
ut_a(ret);
/* printf("Message for thread %lu %lu\n", segment,
(ulint)mess); */
if ((ulint)mess == 3333) {
os_event_set(gl_ready);
}
}
return(0);
}
/************************************************************************
Test of io-handler threads */
void
test4(void)
/*=======*/
{
ulint i;
bool ret;
void* buf;
ulint rnd;
ulint tm, oldtm;
os_thread_t thr[5];
os_thread_id_t id[5];
ulint n[5];
printf("-------------------------------------------\n");
printf("OS-TEST 4. Test of asynchronous file io\n");
/* Align the buffer for file io */
buf = (void*)(((ulint)global_buf + 6300) & (~0xFFF));
gl_ready = os_event_create(NULL);
ios = 0;
sync_init();
mem_init();
mutex_create(&ios_mutex);
for (i = 0; i < 5; i++) {
n[i] = i;
thr[i] = os_thread_create(handler_thread, n + i, id + i);
}
rnd = 0;
oldtm = ut_clock();
for (i = 0; i < 4096; i++) {
ret = os_aio_read(file, (byte*)buf + 8192 * (rnd % 100),
8192 * (rnd % 4096), 0,
8192, (void*)i);
ut_a(ret);
rnd += 1;
}
ret = os_aio_read(file, buf, 8192 * (rnd % 1024), 0, 8192,
(void*)3333);
ut_a(ret);
ut_a(!os_aio_all_slots_free());
tm = ut_clock();
printf("All ios queued! N ios: %lu\n", ios);
printf("Wall clock time for test %lu milliseconds\n", tm - oldtm);
os_event_wait(gl_ready);
tm = ut_clock();
printf("N ios: %lu\n", ios);
printf("Wall clock time for test %lu milliseconds\n", tm - oldtm);
os_thread_sleep(2000000);
printf("N ios: %lu\n", ios);
ut_a(os_aio_all_slots_free());
}
/*************************************************************************
Initializes the asyncronous io system for tests. */
void
init_aio(void)
/*==========*/
{
bool ret;
void* buf;
buf = (void*)(((ulint)global_buf + 6300) & (~0xFFF));
os_aio_init(160, 5);
file = os_file_create("j:\\tsfile4", OS_FILE_CREATE, OS_FILE_TABLESPACE,
&ret);
if (ret == FALSE) {
ut_a(os_file_get_last_error() == OS_FILE_ALREADY_EXISTS);
file = os_file_create("j:\\tsfile4", OS_FILE_OPEN,
OS_FILE_TABLESPACE, &ret);
ut_a(ret);
}
}
/************************************************************************
Main test function. */
void
main(void)
/*======*/
{
ulint tm, oldtm;
oldtm = ut_clock();
init_aio();
test4();
tm = ut_clock();
printf("Wall clock time for test %lu milliseconds\n", tm - oldtm);
printf("TESTS COMPLETED SUCCESSFULLY!\n");
}
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