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thread_stack.c
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43 lines (37 loc) · 1.48 KB
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#include <emscripten.h>
#include <emscripten/wasm_worker.h>
#include <emscripten/stack.h>
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#define THREAD_STACK_SIZE 1024
#define NUM_THREADS 2
void *thread_stack[NUM_THREADS];
volatile int threadsOk = 0;
void test_stack(int i)
{
EM_ASM(out(`In thread ${$0}, stack low addr=0x${$1.toString(16)}, emscripten_stack_get_base()=0x${$2.toString(16)}, emscripten_stack_get_end()=0x${$3.toString(16)}, THREAD_STACK_SIZE=0x${$4.toString(16)}`),
i, thread_stack[i], emscripten_stack_get_base(), emscripten_stack_get_end(), THREAD_STACK_SIZE);
assert(emscripten_stack_get_base() == (uintptr_t)thread_stack[i] + THREAD_STACK_SIZE);
assert(emscripten_stack_get_end() == (uintptr_t)thread_stack[i]);
int ok = __sync_fetch_and_add(&threadsOk, 1);
EM_ASM(out($0), ok);
if (ok == 1)
{
EM_ASM(out(`Test finished!`));
#ifdef REPORT_RESULT
REPORT_RESULT(0);
#endif
}
}
int main()
{
EM_ASM(out(`Main thread stack base=0x${$0.toString(16)}, end=0x${$1.toString(16)}`), emscripten_stack_get_base(), emscripten_stack_get_end());
for(int i = 0; i < NUM_THREADS; ++i)
{
thread_stack[i] = memalign(16, THREAD_STACK_SIZE);
emscripten_wasm_worker_t worker = emscripten_create_wasm_worker(thread_stack[i], THREAD_STACK_SIZE);
EM_ASM(out(`Created thread ${$0} with stack ptr=0x${$1.toString(16)}, size=0x${$2.toString(16)}`), i, thread_stack[i], THREAD_STACK_SIZE);
emscripten_wasm_worker_post_function_vi(worker, test_stack, i);
}
}