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Fixed crash/exception that could occur if you shutdown the agent while a websocket is connected

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This commit is contained in:
Bryan Roe
2020-11-21 16:19:47 -08:00
parent 4d70ba0802
commit e0bf176c39
2 changed files with 23 additions and 17 deletions
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37
microscript/ILibDuktape_ReadableStream.c
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@@ -825,6 +825,7 @@ duk_ret_t ILibDuktape_readableStream_unpipe(duk_context *ctx)
int nargs = duk_get_top(ctx);
int onlyItem = 0;
ILibDuktape_readableStream *data;
if (duk_ctx_shutting_down(ctx)) { return(0); }
duk_push_this(ctx); // [readable]
duk_get_prop_string(ctx, -1, ILibDuktape_readableStream_RSPTRS); // [readable][ptrs]
@@ -851,24 +852,26 @@ duk_ret_t ILibDuktape_readableStream_unpipe(duk_context *ctx)
duk_pop_2(ctx); // [readable]
}
sem_post(&(data->pipeLock));
if (nargs == 0 || onlyItem != 0)
{
// We need to pause first
duk_push_this(ctx); // [readable]
duk_get_prop_string(ctx, -1, "pause"); // [readable][pause]
duk_dup(ctx, -2); // [readable][pause][this]
duk_call_method(ctx, 0); duk_pop(ctx); // [readable]
}
// We must yield, and do this on the next event loop, because we can't unpipe if we're called from a pipe'ed call
void *imm = ILibDuktape_Immediate(ctx, (void*[]) { duk_get_heapptr(ctx, -1), nargs == 1 ? duk_get_heapptr(ctx, 0) : NULL }, nargs + 1, ILibDuktape_readableStream_unpipe_later);
duk_push_heapptr(ctx, imm); // [immediate]
duk_push_this(ctx); // [immediate][this]
duk_put_prop_string(ctx, -2, "\xFF_Self"); // [immediate]
if (nargs == 1) { duk_dup(ctx, 0); duk_put_prop_string(ctx, -2, "\xFF_w"); }
duk_pop(ctx); // ...
if (duk_ctx_shutting_down(ctx) == 0)
{
if (nargs == 0 || onlyItem != 0)
{
// We need to pause first
duk_push_this(ctx); // [readable]
duk_get_prop_string(ctx, -1, "pause"); // [readable][pause]
duk_dup(ctx, -2); // [readable][pause][this]
duk_call_method(ctx, 0); duk_pop(ctx); // [readable]
}
// We must yield, and do this on the next event loop, because we can't unpipe if we're called from a pipe'ed call
void *imm = ILibDuktape_Immediate(ctx, (void*[]) { duk_get_heapptr(ctx, -1), nargs == 1 ? duk_get_heapptr(ctx, 0) : NULL }, nargs + 1, ILibDuktape_readableStream_unpipe_later);
duk_push_heapptr(ctx, imm); // [immediate]
duk_push_this(ctx); // [immediate][this]
duk_put_prop_string(ctx, -2, "\xFF_Self"); // [immediate]
if (nargs == 1) { duk_dup(ctx, 0); duk_put_prop_string(ctx, -2, "\xFF_w"); }
duk_pop(ctx); // ...
}
return 0;
}
duk_ret_t ILibDuktape_readableStream_isPaused(duk_context *ctx)