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Add a CLI option to specify shared heap size on Windows platform #4503

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merged 1 commit into from
Jul 22, 2025
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Add a CLI option to specify shared heap size on Windows platform #4503

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31 changes: 31 additions & 0 deletions product-mini/platforms/windows/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,10 @@ print_help()
printf(" --gc-heap-size=n Set maximum gc heap size in bytes,\n");
printf(" default is %u KB\n", GC_HEAP_SIZE_DEFAULT / 1024);
#endif
#if WASM_ENABLE_SHARED_HEAP != 0
printf(" --shared-heap-size=n Create shared heap of n bytes and attach to the wasm app.\n");
printf(" The size n will be adjusted to a minumum number aligned to page size\n");
#endif
#if WASM_ENABLE_JIT != 0
printf(" --llvm-jit-size-level=n Set LLVM JIT size level, default is 3\n");
printf(" --llvm-jit-opt-level=n Set LLVM JIT optimization level, default is 3\n");
Expand Down Expand Up @@ -364,6 +368,13 @@ main(int argc, char *argv[])
gc_heap_size = atoi(argv[0] + 15);
}
#endif
#if WASM_ENABLE_SHARED_HEAP != 0
else if (!strncmp(argv[0], "--shared-heap-size=", 19)) {
if (argv[0][19] == '\0')
return print_help();
shared_heap_size = atoi(argv[0] + 19);
}
#endif
#if WASM_ENABLE_JIT != 0
else if (!strncmp(argv[0], "--llvm-jit-size-level=", 22)) {
if (argv[0][22] == '\0')
Expand Down Expand Up @@ -551,6 +562,23 @@ main(int argc, char *argv[])
goto fail3;
}

#if WASM_ENABLE_SHARED_HEAP != 0
if (shared_heap_size > 0) {
memset(&shared_heap_init_args, 0, sizeof(shared_heap_init_args));
shared_heap_init_args.size = shared_heap_size;
shared_heap = wasm_runtime_create_shared_heap(&shared_heap_init_args);

if (!shared_heap) {
printf("Create shared heap failed.\n");
goto fail5;
}
if (!wasm_runtime_attach_shared_heap(wasm_module_inst, shared_heap)) {
printf("Attach shared heap failed.\n");
goto fail5;
}
}
#endif

#if WASM_ENABLE_DEBUG_INTERP != 0
if (ip_addr != NULL) {
wasm_exec_env_t exec_env =
Expand Down Expand Up @@ -598,6 +626,9 @@ main(int argc, char *argv[])
if (exception)
printf("%s\n", exception);

#if WASM_ENABLE_SHARED_HEAP != 0
fail5:
#endif
#if WASM_ENABLE_DEBUG_INTERP != 0
fail4:
#endif
Expand Down
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