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// This file is used to test the built-in pool memory allocator.
#include "yyjson.h"
#include "yy_test_utils.h"
#define NUM_PTR 16
#define BUF_SIZE 1024
static void test_alc_pool_init(void) {
yyjson_alc alc;
usize size;
void *buf;
yy_assert(!yyjson_alc_pool_init(NULL, NULL, 0));
memset(&alc, 0, sizeof(alc));
yy_assert(!yyjson_alc_pool_init(&alc, NULL, 0));
yy_assert(!alc.malloc(NULL, 1));
yy_assert(!alc.realloc(NULL, NULL, 0, 1));
alc.free(NULL, NULL);
memset(&alc, 0, sizeof(alc));
yy_assert(!yyjson_alc_pool_init(&alc, NULL, 1024));
yy_assert(!alc.malloc(NULL, 1));
yy_assert(!alc.realloc(NULL, NULL, 0, 1));
alc.free(NULL, NULL);
char small_buf[10];
memset(&alc, 0, sizeof(alc));
yy_assert(!yyjson_alc_pool_init(&alc, small_buf, sizeof(small_buf)));
yy_assert(!alc.malloc(NULL, 1));
yy_assert(!alc.realloc(NULL, NULL, 0, 1));
alc.free(NULL, NULL);
size = 8 * sizeof(void *) - 1;
buf = malloc(size);
yy_assert(!yyjson_alc_pool_init(&alc, buf, size));
free(buf);
}
static void test_alc_pool_func(void) {
yyjson_alc alc;
void *ptr[NUM_PTR];
usize ptr_size[NUM_PTR];
void *buf = malloc(BUF_SIZE);
yy_assert(yyjson_alc_pool_init(&alc, buf, BUF_SIZE));
// suc and fail
ptr[0] = alc.malloc(alc.ctx, BUF_SIZE / 2);
yy_assert(ptr[0]);
memset(ptr[0], 0, BUF_SIZE / 2);
ptr[1] = alc.malloc(alc.ctx, BUF_SIZE / 2);
yy_assert(!ptr[1]);
alc.free(alc.ctx, ptr[0]);
// alc large, free, alc again
for (int i = 0; i < NUM_PTR; i++) {
ptr[i] = alc.malloc(alc.ctx, 32);
yy_assert(ptr[i]);
memset(ptr[i], 0, 32);
}
for (int i = 0; i < NUM_PTR; i += 2) {
alc.free(alc.ctx, ptr[i]);
}
for (int i = 0; i < NUM_PTR; i += 2) {
ptr[i] = alc.malloc(alc.ctx, 16);
yy_assert(ptr[i]);
memset(ptr[i], 0, 16);
}
for (int i = NUM_PTR - 1; i >= 0; i--) {
alc.free(alc.ctx, ptr[i]);
}
// alc large, free, alc small
for (int i = 0; i < NUM_PTR; i++) {
ptr[i] = alc.malloc(alc.ctx, 32);
yy_assert(ptr[i]);
memset(ptr[i], 0, 32);
}
for (int i = 0; i < NUM_PTR; i += 2) {
alc.free(alc.ctx, ptr[i]);
}
for (int i = 0; i < NUM_PTR; i += 2) {
ptr[i] = alc.malloc(alc.ctx, 1);
yy_assert(ptr[i]);
memset(ptr[i], 0, 1);
}
for (int i = NUM_PTR - 1; i >= 0; i--) {
alc.free(alc.ctx, ptr[i]);
}
// alc small, free, alc large
for (int i = 0; i < NUM_PTR; i++) {
ptr[i] = alc.malloc(alc.ctx, 16);
yy_assert(ptr[i]);
memset(ptr[i], 0, 16);
}
for (int i = 0; i < NUM_PTR; i += 2) {
alc.free(alc.ctx, ptr[i]);
}
for (int i = 0; i < NUM_PTR; i += 2) {
ptr[i] = alc.malloc(alc.ctx, 32);
yy_assert(ptr[i]);
memset(ptr[i], 0, 32);
}
for (int i = 0; i < NUM_PTR; i++) {
alc.free(alc.ctx, ptr[i]);
}
// alc small, realloc large
for (int i = 0; i < NUM_PTR / 2; i++) {
ptr[i] = alc.malloc(alc.ctx, 8);
yy_assert(ptr[i]);
memset(ptr[i], 0, 8);
}
for (int i = 0; i < NUM_PTR / 2; i += 2) {
alc.free(alc.ctx, ptr[i]);
}
for (int i = 1; i < NUM_PTR / 2; i += 2) {
ptr[i] = alc.realloc(alc.ctx, ptr[i], 8, 32);
yy_assert(ptr[i]);
memset(ptr[i], 0, 32);
}
for (int i = 0; i < NUM_PTR / 2; i += 2) {
ptr[i] = alc.malloc(alc.ctx, 16);
yy_assert(ptr[i]);
memset(ptr[i], 0, 16);
}
for (int i = 0; i < NUM_PTR / 2; i++) {
alc.free(alc.ctx, ptr[i]);
}
// same space realloc
ptr[0] = alc.malloc(alc.ctx, 64);
ptr[0] = alc.realloc(alc.ctx, ptr[0], 64, 128);
yy_assert(ptr[0]);
alc.free(alc.ctx, ptr[0]);
// random
memset(ptr, 0, sizeof(ptr));
memset(ptr_size, 0, sizeof(ptr_size));
yy_rand_reset(0);
for (int p = 0; p < 10000; p++) {
int i = yy_rand_u32_uniform(NUM_PTR);
usize inc = yy_rand_u32_uniform(127) + 1;
void *tmp = ptr[i];
usize tmp_size = ptr_size[i];
if (tmp) {
bool is_realloc = (yy_rand_u32_uniform(4) == 0);
if (is_realloc) {
tmp = alc.realloc(alc.ctx, tmp, tmp_size, tmp_size + inc);
if (tmp) {
ptr[i] = tmp;
ptr_size[i] += inc;
}
} else {
alc.free(alc.ctx, tmp);
ptr[i] = NULL;
ptr_size[i] = 0;
}
} else {
tmp = alc.malloc(alc.ctx, inc);
if (tmp) memset(tmp, 0xFF, inc);
ptr[i] = tmp;
ptr_size[i] = tmp ? inc : 0;
}
}
for (int i = 0; i < NUM_PTR; i++) {
if (ptr[i]) alc.free(alc.ctx, ptr[i]);
}
// cleanup
free(buf);
}
// test allocator for different length json
static void test_alc_pool_read(void) {
#if !YYJSON_DISABLE_READER
yyjson_read_flag flg;
size_t buf_len;
void *buf;
yyjson_alc alc;
yyjson_doc *doc;
for (size_t n = 1; n <= 1000; n++) {
// e.g. n = 3: [1,1,1]
size_t len = 1 + n * 2;
char *str = malloc(len);
str[0] = '[';
for (size_t i = 0; i < n; i++) {
str[i * 2 + 1] = '1';
str[i * 2 + 2] = ',';
}
str[len - 1] = ']';
// default flag
flg = 0;
buf_len = yyjson_read_max_memory_usage(len, flg);
buf = malloc(buf_len);
yyjson_alc_pool_init(&alc, buf, buf_len);
doc = yyjson_read_opts(str, len, flg, &alc, NULL);
yy_assert(doc);
yy_assert(doc->val_read == n + 1);
yyjson_doc_free(doc);
free(buf);
// instu flag
str = realloc(str, len + YYJSON_PADDING_SIZE);
memset(str + len, 0, YYJSON_PADDING_SIZE);
flg = YYJSON_READ_INSITU;
buf_len = yyjson_read_max_memory_usage(len, flg);
buf = malloc(buf_len);
yyjson_alc_pool_init(&alc, buf, buf_len);
doc = yyjson_read_opts(str, len, flg, &alc, NULL);
yy_assert(doc);
yy_assert(doc->val_read == n + 1);
yyjson_doc_free(doc);
free(buf);
// cleanup
free(str);
}
#endif
}
static void test_alc_dyn(void) {
yyjson_alc *alc;
void *ptr[NUM_PTR];
usize ptr_size[NUM_PTR];
// new and destroy
alc = yyjson_alc_dyn_new();
yy_assert(alc);
yy_assert(!alc->malloc(alc->ctx, SIZE_MAX));
yy_assert(!alc->malloc(alc->ctx, SIZE_MAX - 16));
yyjson_alc_dyn_free(alc);
yyjson_alc_dyn_free(NULL);
// new, alloc, destroy
alc = yyjson_alc_dyn_new();
ptr[0] = alc->malloc(alc->ctx, 0x100);
yy_assert(ptr[0]);
memset(ptr[0], 0xFF, 0x100);
alc->free(alc->ctx, ptr[0]);
yyjson_alc_dyn_free(alc);
// new, alloc-free, destroy
alc = yyjson_alc_dyn_new();
yy_rand_reset(0);
for (int p = 0; p < 1000; p++) {
usize len = yy_rand_u32_uniform(0x4000) + 1;
ptr[0] = alc->malloc(alc->ctx, len);
yy_assert(ptr[0]);
memset(ptr[0], 0xFF, len);
alc->free(alc->ctx, ptr[0]);
}
yyjson_alc_dyn_free(alc);
// new, alloc-free, destroy
alc = yyjson_alc_dyn_new();
yy_rand_reset(0);
for (int p = 0; p < 1000; p++) {
usize len = yy_rand_u32_uniform(0x4000) + 1;
ptr[0] = alc->malloc(alc->ctx, len);
yy_assert(ptr[0]);
memset(ptr[0], 0xFF, len);
alc->free(alc->ctx, ptr[0]);
}
yyjson_alc_dyn_free(alc);
// new, alloc-realloc-free, destroy
alc = yyjson_alc_dyn_new();
yy_rand_reset(0);
for (int p = 0; p < 1000; p++) {
usize len = yy_rand_u32_uniform(0x4000) + 1;
usize inc = yy_rand_u32_uniform(0x4000) + 1;
ptr[0] = alc->malloc(alc->ctx, len);
yy_assert(ptr[0]);
memset(ptr[0], 0xFF, len);
ptr[0] = alc->realloc(alc->ctx, ptr[0], len, len + inc);
yy_assert(ptr[0]);
memset(ptr[0], 0xFF, len + inc);
alc->free(alc->ctx, ptr[0]);
}
yyjson_alc_dyn_free(alc);
// random
alc = yyjson_alc_dyn_new();
yy_rand_reset(0);
memset(ptr, 0, sizeof(ptr));
memset(ptr_size, 0, sizeof(ptr_size));
for (int p = 0; p < 10000; p++) {
int i = yy_rand_u32_uniform(NUM_PTR);
usize inc = yy_rand_u32_uniform(0x4000) + 1;
void *tmp = ptr[i];
usize tmp_size = ptr_size[i];
if (tmp) {
bool is_realloc = (yy_rand_u32_uniform(4) == 0);
if (is_realloc) {
tmp = alc->realloc(alc->ctx, tmp, tmp_size, tmp_size + inc);
if (tmp) {
memset(tmp, 0xFF, tmp_size + inc);
ptr[i] = tmp;
ptr_size[i] += inc;
}
} else {
alc->free(alc->ctx, tmp);
ptr[i] = NULL;
ptr_size[i] = 0;
}
} else {
tmp = alc->malloc(alc->ctx, inc);
if (tmp) memset(tmp, 0xFF, inc);
ptr[i] = tmp;
ptr_size[i] = tmp ? inc : 0;
}
}
yyjson_alc_dyn_free(alc);
}
yy_test_case(test_allocator) {
test_alc_pool_init();
test_alc_pool_func();
test_alc_pool_read();
test_alc_dyn();
}
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