libc heap impl

1 files changed, 23 insertions, 0 deletions

diff --git a/lib/libjove/memory.c b/lib/libjove/memory.c
new file mode 100644
index 0000000..db76528
--- /dev/null
+++ b/lib/libjove/memory.c
@@ -0,0 +1,23 @@
+#include <jove/memory.h>
+
+JoveError 
+jove_mem_ensure_w(uintptr_t start, size_t pages)
+{
+    start &= ~0xFFFULL;
+    for(size_t i = 0; i < pages; i++) {
+        uintptr_t at = start + (i << 12);
+        JoveError e = jove_mem_ensure(at);
+        if(e) return e;
+    }
+    return EJOVE_OK;
+}
+
+JoveError
+jove_mem_ensure_range(uintptr_t start, uintptr_t end)
+{
+    start &= ~0xFFFULL;
+    if(end & 0xFFF)
+        end += 0x1000 - (end & 0xFFF);
+
+    return jove_mem_ensure_w(start, (end - start) >> 12);
+}