mirror of
https://github.com/NixOS/nix
synced 2025-07-06 05:01:48 +02:00
C API: reformat according to proposed clang-format file
This commit is contained in:
Yorick van Pelt
José Luis Lafuente
parent
91e53de7d3
commit
e1bb799da9
13 changed files with 1115 additions and 1078 deletions
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@ -7,139 +7,145 @@
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#include <cxxabi.h>
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#include <typeinfo>
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nix_c_context *nix_c_context_create() { return new nix_c_context(); }
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nix_c_context * nix_c_context_create()
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{
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return new nix_c_context();
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}
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void nix_c_context_free(nix_c_context *context) { delete context; }
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void nix_c_context_free(nix_c_context * context)
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{
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delete context;
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}
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nix_err nix_context_error(nix_c_context *context) {
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if (context == nullptr) {
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throw;
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}
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try {
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throw;
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} catch (nix::Error &e) {
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/* Storing this exception is annoying, take what we need here */
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context->last_err = e.what();
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context->info = e.info();
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int status;
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const char *demangled =
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abi::__cxa_demangle(typeid(e).name(), 0, 0, &status);
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if (demangled) {
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context->name = demangled;
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// todo: free(demangled);
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} else {
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context->name = typeid(e).name();
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nix_err nix_context_error(nix_c_context * context)
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{
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if (context == nullptr) {
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throw;
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}
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context->last_err_code = NIX_ERR_NIX_ERROR;
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return context->last_err_code;
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} catch (const std::exception &e) {
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context->last_err = e.what();
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context->last_err_code = NIX_ERR_UNKNOWN;
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return context->last_err_code;
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}
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// unreachable
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try {
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throw;
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} catch (nix::Error & e) {
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/* Storing this exception is annoying, take what we need here */
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context->last_err = e.what();
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context->info = e.info();
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int status;
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const char * demangled = abi::__cxa_demangle(typeid(e).name(), 0, 0, &status);
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if (demangled) {
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context->name = demangled;
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// todo: free(demangled);
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} else {
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context->name = typeid(e).name();
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}
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context->last_err_code = NIX_ERR_NIX_ERROR;
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return context->last_err_code;
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} catch (const std::exception & e) {
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context->last_err = e.what();
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context->last_err_code = NIX_ERR_UNKNOWN;
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return context->last_err_code;
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}
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// unreachable
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}
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nix_err nix_set_err_msg(nix_c_context *context, nix_err err, const char *msg) {
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if (context == nullptr) {
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// todo last_err_code
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throw nix::Error("Nix C api error: %s", msg);
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}
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context->last_err_code = err;
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context->last_err = msg;
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return err;
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nix_err nix_set_err_msg(nix_c_context * context, nix_err err, const char * msg)
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{
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if (context == nullptr) {
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// todo last_err_code
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throw nix::Error("Nix C api error: %s", msg);
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}
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context->last_err_code = err;
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context->last_err = msg;
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return err;
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}
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const char *nix_version_get() { return PACKAGE_VERSION; }
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const char * nix_version_get()
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{
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return PACKAGE_VERSION;
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}
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// Implementations
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nix_err nix_setting_get(nix_c_context *context, const char *key, char *value,
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int n) {
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if (context)
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context->last_err_code = NIX_OK;
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try {
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std::map<std::string, nix::AbstractConfig::SettingInfo> settings;
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nix::globalConfig.getSettings(settings);
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if (settings.contains(key))
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return nix_export_std_string(context, settings[key].value, value, n);
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else {
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return nix_set_err_msg(context, NIX_ERR_KEY, "Setting not found");
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nix_err nix_setting_get(nix_c_context * context, const char * key, char * value, int n)
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{
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if (context)
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context->last_err_code = NIX_OK;
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try {
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std::map<std::string, nix::AbstractConfig::SettingInfo> settings;
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nix::globalConfig.getSettings(settings);
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if (settings.contains(key))
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return nix_export_std_string(context, settings[key].value, value, n);
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else {
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return nix_set_err_msg(context, NIX_ERR_KEY, "Setting not found");
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}
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}
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}
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NIXC_CATCH_ERRS
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NIXC_CATCH_ERRS
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}
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nix_err nix_setting_set(nix_c_context *context, const char *key,
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const char *value) {
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if (context)
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context->last_err_code = NIX_OK;
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if (nix::globalConfig.set(key, value))
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return NIX_OK;
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else {
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return nix_set_err_msg(context, NIX_ERR_KEY, "Setting not found");
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}
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nix_err nix_setting_set(nix_c_context * context, const char * key, const char * value)
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{
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if (context)
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context->last_err_code = NIX_OK;
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if (nix::globalConfig.set(key, value))
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return NIX_OK;
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else {
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return nix_set_err_msg(context, NIX_ERR_KEY, "Setting not found");
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}
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}
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nix_err nix_libutil_init(nix_c_context *context) {
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if (context)
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context->last_err_code = NIX_OK;
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try {
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nix::initLibUtil();
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return NIX_OK;
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}
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NIXC_CATCH_ERRS
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nix_err nix_libutil_init(nix_c_context * context)
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{
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if (context)
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context->last_err_code = NIX_OK;
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try {
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nix::initLibUtil();
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return NIX_OK;
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}
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NIXC_CATCH_ERRS
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}
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const char *nix_err_msg(nix_c_context *context,
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const nix_c_context *read_context, unsigned int *n) {
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if (context)
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context->last_err_code = NIX_OK;
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if (read_context->last_err) {
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if (n)
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*n = read_context->last_err->size();
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return read_context->last_err->c_str();
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}
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nix_set_err_msg(context, NIX_ERR_UNKNOWN, "No error message");
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return nullptr;
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const char * nix_err_msg(nix_c_context * context, const nix_c_context * read_context, unsigned int * n)
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{
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if (context)
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context->last_err_code = NIX_OK;
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if (read_context->last_err) {
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if (n)
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*n = read_context->last_err->size();
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return read_context->last_err->c_str();
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}
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nix_set_err_msg(context, NIX_ERR_UNKNOWN, "No error message");
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return nullptr;
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}
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nix_err nix_err_name(nix_c_context *context, const nix_c_context *read_context,
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char *value, int n) {
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if (context)
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context->last_err_code = NIX_OK;
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if (read_context->last_err_code != NIX_ERR_NIX_ERROR) {
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return nix_set_err_msg(context, NIX_ERR_UNKNOWN,
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"Last error was not a nix error");
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}
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return nix_export_std_string(context, read_context->name, value, n);
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nix_err nix_err_name(nix_c_context * context, const nix_c_context * read_context, char * value, int n)
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{
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if (context)
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context->last_err_code = NIX_OK;
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if (read_context->last_err_code != NIX_ERR_NIX_ERROR) {
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return nix_set_err_msg(context, NIX_ERR_UNKNOWN, "Last error was not a nix error");
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}
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return nix_export_std_string(context, read_context->name, value, n);
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}
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nix_err nix_err_info_msg(nix_c_context *context,
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const nix_c_context *read_context, char *value,
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int n) {
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if (context)
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context->last_err_code = NIX_OK;
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if (read_context->last_err_code != NIX_ERR_NIX_ERROR) {
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return nix_set_err_msg(context, NIX_ERR_UNKNOWN,
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"Last error was not a nix error");
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}
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return nix_export_std_string(context, read_context->info->msg.str(), value,
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n);
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nix_err nix_err_info_msg(nix_c_context * context, const nix_c_context * read_context, char * value, int n)
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{
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if (context)
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context->last_err_code = NIX_OK;
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if (read_context->last_err_code != NIX_ERR_NIX_ERROR) {
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return nix_set_err_msg(context, NIX_ERR_UNKNOWN, "Last error was not a nix error");
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}
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return nix_export_std_string(context, read_context->info->msg.str(), value, n);
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}
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nix_err nix_err_code(const nix_c_context *read_context) {
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return read_context->last_err_code;
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nix_err nix_err_code(const nix_c_context * read_context)
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{
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return read_context->last_err_code;
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}
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// internal
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nix_err nix_export_std_string(nix_c_context *context,
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const std::string_view str, char *dest,
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unsigned int n) {
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size_t i = str.copy(dest, n - 1);
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dest[i] = 0;
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if (i == n - 1) {
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return nix_set_err_msg(context, NIX_ERR_OVERFLOW,
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"Provided buffer too short");
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} else
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return NIX_OK;
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nix_err nix_export_std_string(nix_c_context * context, const std::string_view str, char * dest, unsigned int n)
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{
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size_t i = str.copy(dest, n - 1);
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dest[i] = 0;
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if (i == n - 1) {
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return nix_set_err_msg(context, NIX_ERR_OVERFLOW, "Provided buffer too short");
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} else
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return NIX_OK;
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}
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@ -127,12 +127,12 @@ typedef struct nix_c_context nix_c_context;
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* @return allocated nix_c_context, owned by the caller. Free using
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* `nix_c_context_free`.
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*/
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nix_c_context *nix_c_context_create();
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nix_c_context * nix_c_context_create();
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/**
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* @brief Free a nix_c_context. Does not fail.
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* @param[out] context The context to free, mandatory.
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*/
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void nix_c_context_free(nix_c_context *context);
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void nix_c_context_free(nix_c_context * context);
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/**
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* @}
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*/
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@ -147,7 +147,7 @@ void nix_c_context_free(nix_c_context *context);
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* @return NIX_OK if the initialization is successful, or an error code
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* otherwise.
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*/
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nix_err nix_libutil_init(nix_c_context *context);
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nix_err nix_libutil_init(nix_c_context * context);
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/** @defgroup settings
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* @{
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@ -167,8 +167,7 @@ nix_err nix_libutil_init(nix_c_context *context);
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* provided buffer is too short, or NIX_OK if the setting was retrieved
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* successfully.
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*/
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nix_err nix_setting_get(nix_c_context *context, const char *key, char *value,
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int n);
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nix_err nix_setting_get(nix_c_context * context, const char * key, char * value, int n);
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/**
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* @brief Sets a setting in the nix global configuration.
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@ -184,8 +183,7 @@ nix_err nix_setting_get(nix_c_context *context, const char *key, char *value,
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* @return NIX_ERR_KEY if the setting is unknown, or NIX_OK if the setting was
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* set successfully.
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*/
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nix_err nix_setting_set(nix_c_context *context, const char *key,
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const char *value);
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nix_err nix_setting_set(nix_c_context * context, const char * key, const char * value);
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/**
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* @}
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@ -198,7 +196,7 @@ nix_err nix_setting_set(nix_c_context *context, const char *key,
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* Does not fail.
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* @return A static string representing the version of the nix library.
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*/
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const char *nix_version_get();
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const char * nix_version_get();
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/** @addtogroup errors
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* @{
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@ -217,8 +215,7 @@ const char *nix_version_get();
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* @return nullptr if no error message was ever set,
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* a borrowed pointer to the error message otherwise.
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*/
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const char *nix_err_msg(nix_c_context *context, const nix_c_context *ctx,
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unsigned int *n);
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const char * nix_err_msg(nix_c_context * context, const nix_c_context * ctx, unsigned int * n);
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/**
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* @brief Retrieves the error message from errorInfo in a context.
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@ -235,8 +232,7 @@ const char *nix_err_msg(nix_c_context *context, const nix_c_context *ctx,
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* @param[in] n Maximum size of the returned string.
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* @return NIX_OK if there were no errors, an error code otherwise.
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*/
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nix_err nix_err_info_msg(nix_c_context *context,
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const nix_c_context *read_context, char *value, int n);
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nix_err nix_err_info_msg(nix_c_context * context, const nix_c_context * read_context, char * value, int n);
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/**
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* @brief Retrieves the error name from a context.
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@ -253,8 +249,7 @@ nix_err nix_err_info_msg(nix_c_context *context,
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* @param[in] n Maximum size of the returned string.
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* @return NIX_OK if there were no errors, an error code otherwise.
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*/
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nix_err nix_err_name(nix_c_context *context, const nix_c_context *read_context,
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char *value, int n);
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nix_err nix_err_name(nix_c_context * context, const nix_c_context * read_context, char * value, int n);
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/**
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* @brief Retrieves the most recent error code from a nix_c_context
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@ -266,7 +261,7 @@ nix_err nix_err_name(nix_c_context *context, const nix_c_context *read_context,
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* @param[in] read_context the context to retrieve the error message from
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* @return most recent error code stored in the context.
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*/
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nix_err nix_err_code(const nix_c_context *read_context);
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nix_err nix_err_code(const nix_c_context * read_context);
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/**
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* @}
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@ -7,14 +7,15 @@
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#include "error.hh"
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#include "nix_api_util.h"
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struct nix_c_context {
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nix_err last_err_code = NIX_OK;
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std::optional<std::string> last_err = {};
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std::optional<nix::ErrorInfo> info = {};
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std::string name = "";
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struct nix_c_context
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{
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nix_err last_err_code = NIX_OK;
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std::optional<std::string> last_err = {};
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std::optional<nix::ErrorInfo> info = {};
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std::string name = "";
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};
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nix_err nix_context_error(nix_c_context *context);
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nix_err nix_context_error(nix_c_context * context);
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/**
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* Internal use only.
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@ -26,7 +27,7 @@ nix_err nix_context_error(nix_c_context *context);
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* @param msg The error message to set.
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* @returns the error code set
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*/
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nix_err nix_set_err_msg(nix_c_context *context, nix_err err, const char *msg);
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nix_err nix_set_err_msg(nix_c_context * context, nix_err err, const char * msg);
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/**
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* Internal use only.
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@ -40,21 +41,21 @@ nix_err nix_set_err_msg(nix_c_context *context, nix_err err, const char *msg);
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* @return NIX_OK if there were no errors, NIX_ERR_OVERFLOW if the string length
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* exceeds `n`.
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*/
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nix_err nix_export_std_string(nix_c_context *context,
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const std::string_view str, char *dest,
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unsigned int n);
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nix_err nix_export_std_string(nix_c_context * context, const std::string_view str, char * dest, unsigned int n);
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#define NIXC_CATCH_ERRS \
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catch (...) { \
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return nix_context_error(context); \
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} \
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return NIX_OK;
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#define NIXC_CATCH_ERRS \
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catch (...) \
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{ \
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return nix_context_error(context); \
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} \
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return NIX_OK;
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#define NIXC_CATCH_ERRS_RES(def) \
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catch (...) { \
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nix_context_error(context); \
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return def; \
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}
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#define NIXC_CATCH_ERRS_RES(def) \
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catch (...) \
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{ \
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nix_context_error(context); \
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return def; \
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}
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#define NIXC_CATCH_ERRS_NULL NIXC_CATCH_ERRS_RES(nullptr)
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#endif // NIX_API_UTIL_INTERNAL_H
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