util: add safe_read_all() and safe_write_all() functions.

1 files changed, 10 insertions, 0 deletions

diff --git a/util.h b/util.h
index ef67566..7293d50 100644
--- a/util.h
+++ b/util.h
@@ -231,8 +231,18 @@ int bfs_minor(dev_t dev);
 ssize_t safe_read(int fd, void *buf, size_t nbytes);
 
 /**
+ * A safe version of read() that handles interrupted system calls and partial reads.
+ */
+ssize_t safe_read_all(int fd, void *buf, size_t nbytes);
+
+/**
  * A safe version of write() that handles interrupted system calls.
  */
 ssize_t safe_write(int fd, const void *buf, size_t nbytes);
 
+/**
+ * A safe version of write() that handles interrupted system calls and partial writes.
+ */
+ssize_t safe_write_all(int fd, const void *buf, size_t nbytes);
+
 #endif // BFS_UTIL_H