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Modify poll_oneoff in libc-wasi to make it interruptible (#1951)

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This commit is contained in:
Hritik Gupta
2023-02-16 13:03:33 +00:00
committed by GitHub
parent 3cc132e8fc
commit 50650e4634
2 changed files with 112 additions and 8 deletions
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10
core/iwasm/common/wasm_shared_memory.c
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@ -111,6 +111,7 @@ notify_stale_threads_on_exception(WASMModuleInstanceCommon *module_inst)
{
AtomicWaitAddressArgs args = { 0 };
uint32 i = 0, total_elem_count = 0;
uint64 total_elem_count_size = 0;
os_mutex_lock(&shared_memory_list_lock);
@ -118,8 +119,15 @@ notify_stale_threads_on_exception(WASMModuleInstanceCommon *module_inst)
bh_hash_map_traverse(wait_map, wait_map_address_count_callback,
(void *)&total_elem_count);
if (!total_elem_count) {
os_mutex_unlock(&shared_memory_list_lock);
return;
}
/* allocate memory */
if (!(args.addr = wasm_runtime_malloc(sizeof(void *) * total_elem_count))) {
total_elem_count_size = (uint64)sizeof(void *) * total_elem_count;
if (total_elem_count_size >= UINT32_MAX
|| !(args.addr = wasm_runtime_malloc((uint32)total_elem_count_size))) {
LOG_ERROR(
"failed to allocate memory for list of atomic wait addresses");
os_mutex_unlock(&shared_memory_list_lock);