[PATCH] Remove buffering to fileio instead of calling fflush

From: Roberto E. Vargas Caballero <k0ga_AT_shike2.com>
Date: Fri, 7 Sep 2012 11:31:04 +0200

By default text files are line buffered, and this means that -f option will
not write the line until a \n is printed. This is not very useful for
debugging, so a call to fflush was added. This patch substitute this call
(which will be done by each character painted) by the full remove of the
buffering in the file.

---
 st.c |   12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/st.c b/st.c
index 75c6cea..f4384b9 100644
--- a/st.c
+++ b/st.c
_AT_@ -352,7 +352,7 @@ static STREscape strescseq;
 static int cmdfd;
 static pid_t pid;
 static Selection sel;
-static FILE *fileio;
+static int iofd = -1;
 static char **opt_cmd  = NULL;
 static char *opt_io    = NULL;
 static char *opt_title = NULL;
_AT_@ -803,9 +803,9 @@ ttynew(void) {
 		signal(SIGCHLD, sigchld);
 		if(opt_io) {
 			if(!strcmp(opt_io, "-")) {
-				fileio = stdout;
+				iofd = STDOUT_FILENO;
 			} else {
-				if(!(fileio = fopen(opt_io, "w"))) {
+				if((iofd = open(opt_io, O_WRONLY | O_CREAT, 0666)) < 0) {
 					fprintf(stderr, "Error opening %s:%s\n",
 						opt_io, strerror(errno));
 				}
_AT_@ -1581,10 +1581,8 @@ void
 tputc(char *c) {
 	char ascii = *c;
 
-	if(fileio) {
-		putc(ascii, fileio);
-		fflush(fileio);
-	}
+	if(iofd != -1)
+		write(iofd, c, 1);
 
 	if(term.esc & ESC_START) {
 		if(term.esc & ESC_CSI) {
-- 
1.7.10.4
--wac7ysb48OaltWcw--

Received on Mon Sep 17 2001 - 00:00:00 CEST