diff options
Diffstat (limited to 'src/core/file_sys/vfs/vfs_real.cpp')
| -rw-r--r-- | src/core/file_sys/vfs/vfs_real.cpp | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/src/core/file_sys/vfs/vfs_real.cpp b/src/core/file_sys/vfs/vfs_real.cpp index fd36752fee..5b5b54017c 100644 --- a/src/core/file_sys/vfs/vfs_real.cpp +++ b/src/core/file_sys/vfs/vfs_real.cpp @@ -21,6 +21,8 @@ #ifdef _WIN32 #include <cstdio> // _getmaxstdio +#else +#include <sys/resource.h> // getrlimit #endif #ifdef _MSC_VER @@ -37,16 +39,23 @@ namespace FS = Common::FS; namespace { -// Files the cache keeps open. On Windows it has to stay below the C runtime's open-file limit with -// room to spare: at the limit every other open fails (saves, shader caches, and the cache's own -// next file, which it only evicts for once it reaches its cap). +// Files the cache keeps open. It has to stay below the process's open-file limit (the C runtime's +// on Windows, RLIMIT_NOFILE elsewhere) with room to spare: at the limit every other open fails +// (saves, shader caches, and the cache's own next file, which it only evicts for once it reaches +// its cap). size_t MaxOpenFiles() { #ifdef _WIN32 static const size_t limit = static_cast<size_t>((std::max)(_getmaxstdio() - 512, 64)); - return (std::min)(size_t{8192}, limit); #else - return 8192; + static const size_t limit = [] { + struct rlimit rl; + if (getrlimit(RLIMIT_NOFILE, &rl) != 0 || rl.rlim_cur == RLIM_INFINITY) { + return size_t{8192}; + } + return static_cast<size_t>(std::max<rlim_t>(rl.rlim_cur, 576) - 512); + }(); #endif + return (std::min)(size_t{8192}, limit); } bool IsWithinRoot(std::string_view root, std::string_view full_path) { |