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ggml: use 'exists( const std::filesystem::path&, std::error_code&)' instead of 'exists( const std::filesystem::path&)' to enhance robustness #17653

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Merged
danbev merged 6 commits into from
Dec 6, 2025
+13 −4
Merged

ggml: use 'exists( const std::filesystem::path&, std::error_code&)' instead of 'exists( const std::filesystem::path&)' to enhance robustness #17653

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f5eee97
Improve error handling for search path existence checks
flyinskyin2013 Dec 1, 2025
6cf2fdd
Improve cache file existence check with error code
flyinskyin2013 Dec 1, 2025
b4a02d2
Simplify existence check for search paths
flyinskyin2013 Dec 2, 2025
d5a7cb8
Fix logging path in error message for posix_stat
flyinskyin2013 Dec 2, 2025
6c4e8bc
Update ggml/src/ggml-backend-reg.cpp
flyinskyin2013 Dec 2, 2025
ca0085c
Adapt to the coding standard
flyinskyin2013 Dec 3, 2025
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14 changes: 11 additions & 3 deletions ggml/src/ggml-backend-reg.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -534,8 +534,12 @@ static ggml_backend_reg_t ggml_backend_load_best(const char * name, bool silent,
fs::path best_path;

for (const auto & search_path : search_paths) {
if (!fs::exists(search_path)) {
GGML_LOG_DEBUG("%s: search path %s does not exist\n", __func__, path_str(search_path).c_str());
if (std::error_code ec; !fs::exists(search_path, ec)) {
if (ec) {
GGML_LOG_DEBUG("%s: posix_stat(%s) failure, error-message: %s\n", __func__, path_str(search_path).c_str(), ec.message().c_str());
} else {
GGML_LOG_DEBUG("%s: search path %s does not exist\n", __func__, path_str(search_path).c_str());
}
continue;
}
fs::directory_iterator dir_it(search_path, fs::directory_options::skip_permission_denied);
Expand Down Expand Up @@ -575,8 +579,12 @@ static ggml_backend_reg_t ggml_backend_load_best(const char * name, bool silent,
for (const auto & search_path : search_paths) {
fs::path filename = backend_filename_prefix().native() + name_path.native() + backend_filename_extension().native();
fs::path path = search_path / filename;
if (fs::exists(path)) {
if (std::error_code ec; fs::exists(path, ec)) {
return get_reg().load_backend(path, silent);
} else {
if (ec) {
GGML_LOG_DEBUG("%s: posix_stat(%s) failure, error-message: %s\n", __func__, path_str(path).c_str(), ec.message().c_str());
}
}
}
return nullptr;
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3 changes: 2 additions & 1 deletion ggml/src/ggml-rpc/ggml-rpc.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1227,7 +1227,8 @@ bool rpc_server::get_cached_file(uint64_t hash, std::vector<uint8_t> & data) {
char hash_str[17];
snprintf(hash_str, sizeof(hash_str), "%016" PRIx64, hash);
fs::path cache_file = fs::path(cache_dir) / hash_str;
if (!fs::exists(cache_file)) {
std::error_code ec;
if (!fs::exists(cache_file, ec)) {
return false;
}
std::ifstream ifs(cache_file, std::ios::binary);
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