begin implementing FileReader

src/lib/include/jes/FileReader.h

@@ -2,14 +2,24 @@
 #define JES_FILEREADER_H
 
 #include "jes/Ref.h"
+#include "jes/Text.h"
+#include <stdint.h>
 
 namespace jes
 {
     class FileReader
     {
     public:
+        FileReader();
+        ~FileReader();
         bool load(const char * fname);
+        void close();
+        unsigned int num_lines() { return m_num_lines; }
+        TextRef get_line(unsigned int line_no);
     protected:
+        int m_fd;
+        unsigned int m_num_lines;
+        uint8_t * m_buf;
     };
     typedef Ref<FileReader> FileReaderRef;
 }

src/lib/src/FileReader.cc

@@ -1 +1,76 @@
 #include "jes/FileReader.h"
+#include "jes/Text.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdint.h>
+
+namespace jes
+{
+    FileReader::FileReader()
+    {
+        m_fd = 0;
+        m_num_lines = 0u;
+        m_buf = NULL;
+    }
+
+    FileReader::~FileReader()
+    {
+        close();
+    }
+
+    bool FileReader::load(const char * fname)
+    {
+        struct stat st;
+        if (stat(fname, &st) != 0)
+        {
+            return false;
+        }
+
+        if (st.st_size < 0)
+        {
+            return false;
+        }
+
+        if (st.st_size == 0)
+        {
+            return true;
+        }
+
+        m_fd = open(fname, O_RDONLY);
+        if (m_fd < 0)
+        {
+            return false;
+        }
+
+        m_buf = new uint8_t[st.st_size];
+
+        if (read(m_fd, m_buf, st.st_size) != st.st_size)
+        {
+            m_buf = NULL;
+            delete[] m_buf;
+            return false;
+        }
+
+        return true;
+    }
+
+    void FileReader::close()
+    {
+        if (m_buf != NULL)
+        {
+            delete[] m_buf;
+            m_buf = NULL;
+        }
+        if (m_fd != 0)
+        {
+            ::close(m_fd);
+            m_fd = 0;
+        }
+    }
+
+    TextRef FileReader::get_line(unsigned int line_no)
+    {
+    }
+}