X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=src%2Fcommon%2Freadwrite.h;fp=src%2Fcommon%2Freadwrite.h;h=39f5a11358b1965fe28f9f52fc249118235b9e85;hb=33b141366b29aa086ecb8d06808d7ba91f83cb1e;hp=0000000000000000000000000000000000000000;hpb=aaec7998fb8952a3a6da00007a86bc70e928bbfd;p=lttng-tools.git

diff --git a/src/common/readwrite.h b/src/common/readwrite.h
new file mode 100644
index 000000000..39f5a1135
--- /dev/null
+++ b/src/common/readwrite.h
@@ -0,0 +1,34 @@
+#ifndef LTTNG_COMMON_READWRITE_H
+#define LTTNG_COMMON_READWRITE_H
+
+/*
+ * Copyright (C) 2013 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License, version 2.1 only,
+ * as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <unistd.h>
+
+/*
+ * lttng_read and lttng_write take care of EINTR and partial read/write.
+ * Upon success, they return the "count" received as parameter.
+ * They can return a negative value if an error occurs.
+ * If a value lower than the requested "count" is returned, it means an
+ * error occured.
+ * The error can be checked by querying errno.
+ */
+ssize_t lttng_read(int fd, void *buf, size_t count);
+ssize_t lttng_write(int fd, const void *buf, size_t count);
+
+#endif /* LTTNG_COMMON_READWRITE_H */