samiandClaude Sonnet 5
6d7c4f7bc4
Introduces the four rpc-layer seams docs/08-porting.md calls for this lane: platform::Wakeup (eventfd), platform::peer_of (SO_PEERCRED/struct ucred, same-UID check preserved unchanged), platform::acquire_instance_lock (abstract-namespace socket), platform::runtime_base_dir/data_base_dir (XDG lookups). Today's Linux code moves unchanged into daemon/src/rpc/platform/linux/; the seam headers carry no OS types and no #ifdef. No fifth interface for timerfd: EventLoop gains a portable add_timer() that folds the next deadline into poll()'s own timeout, replacing both timerfd instances in main.cpp — the loop already computes a deadline, so this needs no per-OS backend at all. Full suite 59/59 green; no #ifdef outside platform/linux/, no behaviour change. Co-Authored-By: Claude Sonnet 5 <[email protected]>
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
#include "rpc/platform/runtime_paths.hpp"
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <cerrno>
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#include <cstdlib>
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namespace velox::daemon::rpc::platform {
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namespace {
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std::error_code errc(int e) { return std::error_code(e, std::generic_category()); }
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} // namespace
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std::error_code runtime_base_dir(std::string& out) {
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if (const char* xdg = ::getenv("XDG_RUNTIME_DIR"); xdg != nullptr && xdg[0] != '\0') {
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out = xdg;
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return {};
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}
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const std::string base = "/run/user/" + std::to_string(::geteuid());
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struct stat st{};
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if (::stat(base.c_str(), &st) != 0 || !S_ISDIR(st.st_mode)) {
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// No XDG_RUNTIME_DIR and no /run/user/<uid>: refuse rather than pick an insecure
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// fallback. The caller surfaces this as "cannot start".
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return errc(ENOENT);
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}
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out = base;
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return {};
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}
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std::error_code data_base_dir(std::string& out) {
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if (const char* xdg = ::getenv("XDG_DATA_HOME"); xdg != nullptr && xdg[0] != '\0') {
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out = xdg;
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return {};
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}
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if (const char* home = ::getenv("HOME"); home != nullptr && home[0] != '\0') {
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out = std::string(home) + "/.local/share";
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return {};
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}
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return errc(ENOENT);
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}
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} // namespace velox::daemon::rpc::platform
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