IO utils improvement

CMakeLists.txt

@@ -72,4 +72,5 @@ add_executable(nr-cli src/cli.cpp)
 target_link_libraries(nr-cli pthread)
 target_compile_options(nr-cli PRIVATE -Wall -Wextra -pedantic)
 
-target_link_libraries(nr-cli utils)
\ No newline at end of file
+target_link_libraries(nr-cli app)
+target_link_libraries(nr-cli utils)

src/utils/common.cpp

@@ -7,6 +7,7 @@
 //
 
 #include "common.hpp"
+#include <algorithm>
 #include <atomic>
 #include <chrono>
 #include <random>
@@ -295,3 +296,8 @@ void utils::AssertNodeName(const std::string &str)
                                  "' contains illegal character: " + std::string(1, c));
     }
 }
+
+bool utils::IsNumeric(const std::string &str)
+{
+    return !str.empty() && std::all_of(str.begin(), str.end(), [](char c) { return (c >= '0' && c <= '9'); });
+}

src/utils/common.hpp

@@ -32,6 +32,7 @@ int ParseInt(const char *str);
 uint64_t Random64();
 void Sleep(int ms);
 bool IsRoot();
+bool IsNumeric(const std::string& str);
 void AssertNodeName(const std::string &str);
 
 template <typename T>

src/utils/constants.hpp

@@ -28,5 +28,6 @@ struct cons
 
     // Others
     static constexpr const char *CMD_SERVER_IP = "127.0.0.1";
-    static constexpr const char* PROC_TABLE_DIR = "/tmp/UERANSIM.proc-table/";
+    static constexpr const char *PROC_TABLE_DIR = "/tmp/UERANSIM.proc-table/";
+    static constexpr const char *PROCESS_DIR = "/proc/";
 };

src/utils/io.cpp

@@ -26,13 +26,13 @@ std::string ReadAllText(const std::string &file)
 
 void CreateDirectory(const std::string &path)
 {
-    if (!std::filesystem::exists(path))
+    if (!Exists(path))
     {
         if (!std::filesystem::is_directory(path))
             throw std::runtime_error("Required path '" + path + "' exists but not a directory.");
 
         std::filesystem::create_directory(path);
-        std::filesystem::permissions(path, std::filesystem::perms::all);
+        RelaxPermissions(path);
     }
 }
 
@@ -41,4 +41,26 @@ bool Exists(const std::string &path)
     return std::filesystem::exists(path);
 }
 
+void WriteAllText(const std::string &path, const std::string &content)
+{
+    std::ofstream ofs{};
+    ofs.exceptions(std::ofstream::failbit | std::ofstream::badbit);
+    ofs.open(path);
+    ofs << content;
+    ofs.close();
+    RelaxPermissions(path);
+}
+
+void RelaxPermissions(const std::string &path)
+{
+    std::filesystem::permissions(path, std::filesystem::perms::all);
+}
+
+bool Remove(const std::string &path)
+{
+    std::error_code err{};
+    std::filesystem::remove_all(path, err);
+    return (bool)err;
+}
+
 } // namespace io

src/utils/io.hpp

@@ -13,8 +13,14 @@ namespace io
 
 void CreateDirectory(const std::string &path);
 
+bool Exists(const std::string &path);
+
 std::string ReadAllText(const std::string &file);
 
-bool Exists(const std::string &path);
+void WriteAllText(const std::string &path, const std::string &content);
+
+void RelaxPermissions(const std::string &path);
+
+bool Remove(const std::string &path);
 
 } // namespace io