Implement file writing using the write syscall

2 files changed, 9 insertions, 6 deletions

diff --git a/buffer.cpp b/buffer.cpp
index ff5ae60..ba3f87c 100644
--- a/buffer.cpp
+++ b/buffer.cpp
@@ -20,11 +20,14 @@ struct Buffer {
 		close(file);
 	}
 
-	void write_file(const char *file) {
-		FILE *f = fopen(file, "w+");
-		for (Point p(storage, 0); !p.at_end(); p++) {
-			fputc(p.element(), f);
+	void write_file(const char *pathname) {
+		int file = open(pathname, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
+		Page *iter = storage;
+		while (iter) {
+			write(file, iter->elements, iter->gap_start);
+			write(file, iter->elements + iter->gap_end, PAGE_SIZE - iter->gap_end);
+			iter = iter->next;
 		}
-		fclose(f);
+		close(file);
 	}
 };
diff --git a/jet.cpp b/jet.cpp
index 1a2e9c9..3d45c75 100644
--- a/jet.cpp
+++ b/jet.cpp
@@ -64,7 +64,7 @@ int main() {
 	epoll_event events[MAX_EVENTS];
 	Client *clients[1024] = {};
 
-	for (;;) {
+	while (true) {
 		int nfds = epoll_wait(epollfd, events, MAX_EVENTS, -1);
 
 		for (int i = 0; i < nfds; i++) {