New filesystem API

1 files changed, 19 insertions, 1 deletions

diff --git a/filesystem/include/filesystem.h b/filesystem/include/filesystem.h
index 1c354b7..bc7f953 100644
--- a/filesystem/include/filesystem.h
+++ b/filesystem/include/filesystem.h
@@ -6,8 +6,26 @@
 #include <stddef.h>
 #include <stdio.h>
 
+#define WITH_FILE(FILEPATH, BODY)       \
+  {                                     \
+    assert(FILEPATH);                   \
+    FILE* file = fopen(FILEPATH, "rb"); \
+    if (file) {                         \
+      BODY;                             \
+      fclose(file);                     \
+    }                                   \
+  }
+
+/// Get the file's size.
+size_t get_file_size(const char* filename);
+
 /// Get the file's size.
-size_t get_file_size(FILE* file);
+size_t get_file_size_f(FILE* file);
 
 /// Read the entire contents of the file into memory.
 void* read_file(const char* filepath);
+
+/// Read the entire contents of the file into memory.
+///
+/// The given buffer must be large enough to hold the file's contents.
+bool read_file_f(FILE*, void* buffer);