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|
/*
* lws-api-test-lws_dsh
*
* Written in 2010-2019 by Andy Green <andy@warmcat.com>
*
* This file is made available under the Creative Commons CC0 1.0
* Universal Public Domain Dedication.
*/
#include <libwebsockets.h>
int
test1(void)
{
struct lws_dsh *dsh;
size_t size;
void *a1;
/*
* test 1: single dsh, alloc 2 kinds and free everything back to a
* single free obj
*/
dsh = lws_dsh_create(NULL, 16384, 2);
if (!dsh) {
lwsl_err("%s: Failed to create dsh\n", __func__);
return 1;
}
if (lws_dsh_alloc_tail(dsh, 0, "hello", 5, NULL, 0)) {
lwsl_err("%s: Failed to alloc 1\n", __func__);
goto bail;
}
if (lws_dsh_alloc_tail(dsh, 1, "some other string", 17, NULL, 0)) {
lwsl_err("%s: Failed to alloc 2\n", __func__);
goto bail;
}
if (lws_dsh_alloc_tail(dsh, 0, "hello again", 11, NULL, 0)) {
lwsl_err("%s: Failed to alloc 3\n", __func__);
goto bail;
}
if (lws_dsh_get_head(dsh, 1, &a1, &size)) {
lwsl_err("%s: no head 1\n", __func__);
goto bail;
}
if (size != 17 || memcmp(a1, "some other string", 17)) {
lwsl_err("%s: test 1 mismatch\n", __func__);
goto bail;
}
lws_dsh_free(&a1);
if (lws_dsh_get_head(dsh, 0, &a1, &size)) {
lwsl_err("%s: no head 2\n", __func__);
goto bail;
}
if (size != 5 || memcmp(a1, "hello", 5)) {
lwsl_err("%s: test 2 mismatch\n", __func__);
goto bail;
}
lws_dsh_free(&a1);
if (lws_dsh_get_head(dsh, 0, &a1, &size)) {
lwsl_err("%s: no head 3\n", __func__);
goto bail;
}
if (size != 11 || memcmp(a1, "hello again", 11)) {
lwsl_err("%s: test 3 mismatch\n", __func__);
goto bail;
}
lws_dsh_free(&a1);
lws_dsh_destroy(&dsh);
return 0;
bail:
lws_dsh_destroy(&dsh);
return 1;
}
int
test2(void)
{
struct lws_dsh *dsh, *dsh2;
lws_dll2_owner_t owner;
uint8_t blob[4096];
memset(blob, 0, sizeof(blob));
/*
* test 2: multiple dsh, overflow allocation and dynamic destroy
*/
lws_dll2_owner_clear(&owner);
dsh = lws_dsh_create(&owner, 4096, 2);
if (!dsh) {
lwsl_err("%s: Failed to create dsh1\n", __func__);
return 1;
}
dsh2 = lws_dsh_create(&owner, 4096, 2);
if (!dsh2) {
lwsl_err("%s: Failed to create dsh2\n", __func__);
goto bail;
}
if (lws_dsh_alloc_tail(dsh, 0, blob, 4000, NULL, 0)) {
lwsl_err("%s: Failed to alloc 1\n", __func__);
goto bail2;
}
if (lws_dsh_alloc_tail(dsh2, 0, "hello", 5, NULL, 0)) {
lwsl_err("%s: Failed to alloc 2\n", __func__);
goto bail2;
}
/*
* We create this logically on dsh. But there's no room for the body.
* It should figure out it can use space on dsh2.
*/
if (lws_dsh_alloc_tail(dsh, 0, blob, 2000, NULL, 0)) {
lwsl_err("%s: Failed to alloc 3\n", __func__);
goto bail2;
}
if (lws_dsh_alloc_tail(dsh2, 0, "hello again", 11, NULL, 0)) {
lwsl_err("%s: Failed to alloc 4\n", __func__);
goto bail2;
}
/*
* When we destroy dsh2 it will try to migrate out the 2000 allocation
* from there but find there is no space in dsh1. It should handle it
* by logicalling dropping the object.
*/
lws_dsh_destroy(&dsh2);
lws_dsh_destroy(&dsh);
return 0;
bail2:
lws_dsh_destroy(&dsh2);
bail:
lws_dsh_destroy(&dsh);
return 1;
}
int
test3(void)
{
struct lws_dsh *dsh, *dsh2;
lws_dll2_owner_t owner;
uint8_t blob[4096];
memset(blob, 0, sizeof(blob));
/*
* test 3: multiple dsh, umeetable allocation request
*/
lws_dll2_owner_clear(&owner);
dsh = lws_dsh_create(&owner, 4096, 2);
if (!dsh) {
lwsl_err("%s: Failed to create dsh1\n", __func__);
return 1;
}
dsh2 = lws_dsh_create(&owner, 4096, 2);
if (!dsh2) {
lwsl_err("%s: Failed to create dsh2\n", __func__);
goto bail;
}
if (lws_dsh_alloc_tail(dsh, 0, blob, 4000, NULL, 0)) {
lwsl_err("%s: Failed to alloc 1\n", __func__);
goto bail2;
}
if (lws_dsh_alloc_tail(dsh2, 0, "hello", 5, NULL, 0)) {
lwsl_err("%s: Failed to alloc 2\n", __func__);
goto bail2;
}
/*
* There's just no room for this, we expect it to fail
*/
if (!lws_dsh_alloc_tail(dsh, 0, blob, 5000, NULL, 0)) {
lwsl_err("%s: Didn't fail to alloc as expected\n", __func__);
goto bail2;
}
if (lws_dsh_alloc_tail(dsh2, 0, "hello again", 11, NULL, 0)) {
lwsl_err("%s: Failed to alloc 4\n", __func__);
goto bail2;
}
lws_dsh_destroy(&dsh2);
lws_dsh_destroy(&dsh);
return 0;
bail2:
lws_dsh_destroy(&dsh2);
bail:
lws_dsh_destroy(&dsh);
return 1;
}
int
test4(void)
{
uint8_t blob[4096];
struct lws_dsh *dsh;
size_t size;
void *a1;
memset(blob, 0, sizeof(blob));
/*
* test 1: use up whole free list, then recover and alloc something
* else
*/
dsh = lws_dsh_create(NULL, 4096, 2);
if (!dsh) {
lwsl_err("%s: Failed to create dsh\n", __func__);
return 1;
}
if (lws_dsh_alloc_tail(dsh, 0, blob, 4000, NULL, 0)) {
lwsl_err("%s: Failed to alloc 1\n", __func__);
goto bail;
}
if (lws_dsh_get_head(dsh, 0, &a1, &size)) {
lwsl_err("%s: no head 1\n", __func__);
goto bail;
}
if (size != 4000) {
lwsl_err("%s: test 1 mismatch\n", __func__);
goto bail;
}
lws_dsh_free(&a1);
if (lws_dsh_alloc_tail(dsh, 0, "some other string", 17, NULL, 0)) {
lwsl_err("%s: Failed to alloc 2\n", __func__);
goto bail;
}
if (lws_dsh_alloc_tail(dsh, 0, "hello again", 11, NULL, 0)) {
lwsl_err("%s: Failed to alloc 3\n", __func__);
goto bail;
}
if (lws_dsh_get_head(dsh, 0, &a1, &size)) {
lwsl_err("%s: no head 1\n", __func__);
goto bail;
}
if (size != 17 || memcmp(a1, "some other string", 17)) {
lwsl_err("%s: test 1 mismatch\n", __func__);
goto bail;
}
lws_dsh_free(&a1);
if (lws_dsh_get_head(dsh, 0, &a1, &size)) {
lwsl_err("%s: no head 2\n", __func__);
goto bail;
}
if (size != 11 || memcmp(a1, "hello again", 11)) {
lwsl_err("%s: test 2 mismatch (%zu)\n", __func__, size);
goto bail;
}
lws_dsh_free(&a1);
lws_dsh_destroy(&dsh);
return 0;
bail:
lws_dsh_destroy(&dsh);
return 1;
}
int main(int argc, const char **argv)
{
int logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE;
int ret = 0, n;
const char *p;
if ((p = lws_cmdline_option(argc, argv, "-d")))
logs = atoi(p);
lws_set_log_level(logs, NULL);
lwsl_user("LWS API selftest: lws_dsh\n");
n = test1();
lwsl_user("%s: test1: %d\n", __func__, n);
ret |= n;
n = test2();
lwsl_user("%s: test2: %d\n", __func__, n);
ret |= n;
n = test3();
lwsl_user("%s: test3: %d\n", __func__, n);
ret |= n;
n = test4();
lwsl_user("%s: test4: %d\n", __func__, n);
ret |= n;
lwsl_user("Completed: %s\n", ret ? "FAIL" : "PASS");
return ret;
}
|
