From 15b77d52c950c375514d2e8152e7112fd018e20e Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Sun, 8 May 2011 00:03:00 -0400
Subject: eventfd syscall wrapper and read/write wrappers

---
 src/linux/eventfd.c       | 7 +++++++
 src/linux/eventfd_read.c  | 7 +++++++
 src/linux/eventfd_write.c | 7 +++++++
 3 files changed, 21 insertions(+)
 create mode 100644 src/linux/eventfd.c
 create mode 100644 src/linux/eventfd_read.c
 create mode 100644 src/linux/eventfd_write.c

(limited to 'src/linux')

diff --git a/src/linux/eventfd.c b/src/linux/eventfd.c
new file mode 100644
index 00000000..cb39a7ba
--- /dev/null
+++ b/src/linux/eventfd.c
@@ -0,0 +1,7 @@
+#include <sys/eventfd.h>
+#include "syscall.h"
+
+int eventfd(unsigned int count, int flags)
+{
+	return syscall(flags ? SYS_eventfd2 : SYS_eventfd, count, flags);
+}
diff --git a/src/linux/eventfd_read.c b/src/linux/eventfd_read.c
new file mode 100644
index 00000000..969e6615
--- /dev/null
+++ b/src/linux/eventfd_read.c
@@ -0,0 +1,7 @@
+#include <sys/eventfd.h>
+#include <unistd.h>
+
+int eventfd_read(int fd, eventfd_t *value)
+{
+	return (sizeof(*value) == read(fd, value, sizeof(*value))) ? 0 : -1;
+}
diff --git a/src/linux/eventfd_write.c b/src/linux/eventfd_write.c
new file mode 100644
index 00000000..734fa367
--- /dev/null
+++ b/src/linux/eventfd_write.c
@@ -0,0 +1,7 @@
+#include <sys/eventfd.h>
+#include <unistd.h>
+
+int eventfd_write(int fd, eventfd_t value)
+{
+	return (sizeof(value) == write(fd, &value, sizeof(value))) ? 0 : -1;
+}
-- 
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