45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/************************************************************/ /**
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*
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* @file: runtime_io.c
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* @author: Martin Fouilleul
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* @date: 09/05/2023
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*
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*****************************************************************/
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#include "platform/platform_io_internal.h"
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#include "runtime.h"
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oc_io_cmp oc_runtime_io_wait_single_req(oc_io_req* wasmReq)
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{
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oc_runtime* orca = oc_runtime_get();
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oc_arena* scratch = oc_scratch();
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oc_io_cmp cmp = { 0 };
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oc_io_req req = *wasmReq;
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//NOTE: convert the req->buffer wasm pointer to a native pointer
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// for some reason, wasm3 memory doesn't start at the beginning of the block we give it.
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u64 bufferIndex = (u64)req.buffer & 0xffffffff;
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u32 memSize = 0;
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char* memory = (char*)m3_GetMemory(orca->runtime.m3Runtime, &memSize, 0);
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if(bufferIndex + req.size > memSize)
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{
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cmp.error = OC_IO_ERR_ARG;
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}
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else
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{
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req.buffer = memory + bufferIndex;
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if(req.op == OC_IO_OPEN_AT)
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{
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if(req.handle.h == 0)
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{
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//NOTE: change root to app local folder
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req.handle = orca->rootDir;
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req.open.flags |= OC_FILE_OPEN_RESTRICT;
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}
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}
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cmp = oc_io_wait_single_req_with_table(&req, &orca->fileTable);
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}
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return (cmp);
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}
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