From: Simone Piccardi <piccardi@gnulinux.it>
Date: Tue, 21 Aug 2007 18:07:07 +0000 (+0000)
Subject: Il flag {{{SPLICE_F_NONBLOCK}}} fa si che ritorni {{{EAGAIN}}} anche
X-Git-Url: https://gapil.gnulinux.it/gitweb/?a=commitdiff_plain;h=102049e7a564ba91d336f7c9b2f027067f9c48dd;p=gapil.git

Il flag {{{SPLICE_F_NONBLOCK}}} fa si che ritorni {{{EAGAIN}}} anche
quando la pipe in ingresso non contiene dati, se non lo si usa in quel
caso {{{tee}}} ritorna semplicemente con un valore nullo.
---

diff --git a/sources/tee.c b/sources/tee.c
index 559c949..d876ad9 100644
--- a/sources/tee.c
+++ b/sources/tee.c
@@ -115,7 +115,8 @@ int main(int argc, char *argv[])
     /* tee loop */
     while (1) {
         /* copy stdin to stdout */
-        len = tee(STDIN_FILENO, STDOUT_FILENO, size, SPLICE_F_NONBLOCK);
+        len = tee(STDIN_FILENO, STDOUT_FILENO, size, 0);
+	fprintf(stderr, "Copied %d byte\n", len); /* debug (use stderr!) */
 	if (len == 0) break;
         if (len < 0) {
             if (errno == EAGAIN) {
@@ -125,7 +126,6 @@ int main(int argc, char *argv[])
 		exit(EXIT_FAILURE);
 	    }
         }
-	fprintf(stderr, "Copied %d byte\n", len); /* debug (use stderr!) */
         /* write data to the file using splice */
         while (len > 0) {
             nwrite = splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);