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#ifdef __EMSCRIPTEN__
#include <emscripten.h>
#include <iostream>
#include <test_assert.h>
const std::string get_wasm_file_path(const std::string& filename) {
// Verify that we are passing a fully-qualified path
// TODO: we need to support relative paths based on CWD
#if _DEBUG_FOPEN
std::cout << "get_wasm_file_path ENTER (" << filename << ")" << std::endl;
#endif
test_assert(
(filename.length() > 0 && filename.at(0) == '/') ||
(filename.length() > 1 && filename.at(1) == ':')
);
#if _DEBUG_FOPEN
std::cout << "get_wasm_file_path test_assert passed " << std::endl;
#endif
EM_ASM_({
//console.log('EM_ASM enter');
let path = Module.UTF8ToString($0);
const isWin32Path = path.match(/^[a-zA-Z]:/);
//console.log('EM_ASM path = '+path);
let root = '/nodefs-mount';
if(!FS.analyzePath(root).exists) {
//console.log('EM_ASM mkdir '+root);
FS.mkdir(root);
if(!isWin32Path) {
//console.log('EM_ASM mount '+root);
FS.mount(NODEFS, {root : '/'}, root);
}
}
if(isWin32Path) {
// Win32 path, one mount per drive
root += "/" + path.charAt(0);
if(!FS.analyzePath(root).exists) {
//console.log('EM_ASM mkdir '+root);
FS.mkdir(root);
//console.log('EM_ASM mount '+root);
FS.mount(NODEFS, {root : path.substr(0,3) }, root);
}
}
}, filename.c_str());
#if _DEBUG_FOPEN
std::cout << "get_wasm_file_path EM_ASM_ passed " << std::endl;
#endif
std::string f = std::string("/nodefs-mount");
if(filename.length() > 2 && filename.at(1) == ':') {
f += std::string("/") + filename.at(0) + filename.substr(2);
} else {
f += filename;
}
#if _DEBUG_FOPEN
std::cout << "get_wasm_file_path opening virtual path: " << f << std::endl;
#endif
return f;
}
#endif
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