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stdlib: Move fs over to interior vectors by introducing a rust_list_files_ivec builtin

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This commit is contained in:
Patrick Walton 2011-07-12 15:14:57 -07:00
parent 27834c2a65
commit 598b50e10a
5 changed files with 48 additions and 7 deletions
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40
src/rt/rust_builtin.cpp
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@ -454,7 +454,9 @@ debug_opaque(rust_task *task, type_desc *t, uint8_t *front)
}
}
struct rust_box : rc_base<rust_box> {
struct rust_box {
RUST_REFCOUNTED(rust_box)
// FIXME `data` could be aligned differently from the actual box body data
uint8_t data[];
};
@ -580,6 +582,42 @@ rust_list_files(rust_task *task, rust_str *path) {
sizeof(rust_str*), strings.data());
}
extern "C" CDECL rust_box*
rust_list_files_ivec(rust_task *task, rust_str *path) {
array_list<rust_str*> strings;
#if defined(__WIN32__)
WIN32_FIND_DATA FindFileData;
HANDLE hFind = FindFirstFile((char*)path->data, &FindFileData);
if (hFind != INVALID_HANDLE_VALUE) {
do {
strings.push(c_str_to_rust(task, FindFileData.cFileName));
} while (FindNextFile(hFind, &FindFileData));
FindClose(hFind);
}
#else
DIR *dirp = opendir((char*)path->data);
if (dirp) {
struct dirent *dp;
while ((dp = readdir(dirp)))
strings.push(c_str_to_rust(task, dp->d_name));
closedir(dirp);
}
#endif
rust_box *box = (rust_box *)task->malloc(sizeof(rust_box) +
sizeof(rust_ivec));
box->ref_count = 1;
rust_ivec *iv = (rust_ivec *)&box->data;
iv->fill = 0;
size_t alloc_sz = sizeof(rust_str *) * strings.size();
iv->alloc = alloc_sz;
iv->payload.ptr = (rust_ivec_heap *)
task->kernel->malloc(alloc_sz + sizeof(size_t));
iv->payload.ptr->fill = alloc_sz;
memcpy(&iv->payload.ptr->data, strings.data(), alloc_sz);
return box;
}
#if defined(__WIN32__)
extern "C" CDECL rust_str *
rust_dirent_filename(rust_task *task, void* ent) {