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#include <assert.h>
#include <emscripten.h>
#include <stdio.h>
#include <vector>
int main() {
const int CHUNK_SIZE = 100 * 1024 * 1024;
const int NUM_CHUNKS = 31; // total allocation will be over 3GB
std::vector<std::vector<char>> chunks;
chunks.resize(NUM_CHUNKS);
puts("allocating");
for (int i = 0; i < NUM_CHUNKS; i++) {
printf("alloc %d\n", i);
chunks[i].resize(CHUNK_SIZE);
}
puts("testing");
for (int i = 0; i < NUM_CHUNKS; i++) {
printf("test %d\n", i);
chunks[i][i] = i;
int fromJS = EM_ASM_INT({
return HEAP8[$0];
}, &chunks[i][i]);
printf("wrote %d in C, read %d from JS\n", i, fromJS);
EM_ASM_INT({
HEAP8[$0] = 2 * $1;
}, &chunks[i][i], i);
int fromC = chunks[i][i];
printf("wrote %d in JS, read %d from C\n", 2 * i, fromC);
}
puts("success");
}
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