Another qfengine graft: resource management

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1 files changed, 76 insertions, 0 deletions

diff --git a/core/utils/physfs.cc b/core/utils/physfs.cc
new file mode 100644
index 0000000..cb310df
--- /dev/null
+++ b/core/utils/physfs.cc
@@ -0,0 +1,76 @@
+#include "core/pch.hh"
+
+#include "core/utils/physfs.hh"
+
+bool utils::read_file(std::string_view path, std::vector<std::byte>& buffer)
+{
+    auto file = PHYSFS_openRead(std::string(path).c_str());
+
+    if(file == nullptr) {
+        spdlog::error("physfs: {}: {}", path, PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
+        return false;
+    }
+
+    PHYSFS_sint64 file_size = PHYSFS_fileLength(file);
+    buffer.resize(static_cast<std::size_t>(file_size));
+
+    PHYSFS_readBytes(file, buffer.data(), file_size);
+    PHYSFS_close(file);
+
+    return true;
+}
+
+bool utils::read_file(std::string_view path, std::string& buffer)
+{
+    auto file = PHYSFS_openRead(std::string(path).c_str());
+
+    if(file == nullptr) {
+        spdlog::error("physfs: {}: {}", path, PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
+        return false;
+    }
+
+    PHYSFS_sint64 file_size = PHYSFS_fileLength(file);
+    buffer.resize(static_cast<std::size_t>(file_size));
+
+    PHYSFS_readBytes(file, buffer.data(), file_size);
+    PHYSFS_close(file);
+
+    return true;
+}
+
+bool utils::write_file(std::string_view path, const std::vector<std::byte>& buffer)
+{
+    auto file = PHYSFS_openWrite(std::string(path).c_str());
+
+    if(file == nullptr) {
+        spdlog::error("physfs: {}: {}", path, PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
+        return false;
+    }
+
+    PHYSFS_writeBytes(file, buffer.data(), static_cast<PHYSFS_uint64>(buffer.size()));
+    PHYSFS_close(file);
+
+    return true;
+}
+
+bool utils::write_file(std::string_view path, const std::string& buffer)
+{
+    auto file = PHYSFS_openWrite(std::string(path).c_str());
+
+    if(file == nullptr) {
+        spdlog::error("physfs: {}: {}", path, PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
+        return false;
+    }
+
+    PHYSFS_writeBytes(file, buffer.data(), static_cast<PHYSFS_uint64>(buffer.size()));
+    PHYSFS_close(file);
+
+    return true;
+}
+
+std::string_view utils::physfs_error(void)
+{
+    auto error_code = PHYSFS_getLastErrorCode();
+    auto error_string = PHYSFS_getErrorByCode(error_code);
+    return std::string_view(error_string, std::strlen(error_string));
+}