X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=include%2Fshare.h;fp=include%2Fshare.h;h=f674f31f590719915398d56d464e7684b7ddaf14;hb=fbca6b624335eef18c8d86194aeb101a720168f4;hp=0000000000000000000000000000000000000000;hpb=93d0f2eaff675059588e958e3de74a1bb7dd4028;p=ust.git

diff --git a/include/share.h b/include/share.h
new file mode 100644
index 0000000..f674f31
--- /dev/null
+++ b/include/share.h
@@ -0,0 +1,34 @@
+#ifndef UST_SHARE_H
+#define UST_SHARE_H
+
+#include <unistd.h>
+#include <errno.h>
+
+/* This write is patient because it restarts if it was incomplete.
+ */
+
+static inline ssize_t patient_write(int fd, const void *buf, size_t count)
+{
+	const char *bufc = (const char *) buf;
+	int result;
+
+	for(;;) {
+		result = write(fd, bufc, count);
+		if(result == -1 && errno == EINTR) {
+			continue;
+		}
+		if(result <= 0) {
+			return result;
+		}
+		count -= result;
+		bufc += result;
+
+		if(count == 0) {
+			break;
+		}
+	}
+
+	return bufc-(const char *)buf;
+}
+
+#endif /* UST_SHARE_H */