eventfd syscall wrapper and read/write wrappers

3 files changed, 21 insertions, 0 deletions

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;
+}