1 files changed, 179 insertions, 0 deletions
diff --git a/src/device_manager_io.c b/src/device_manager_io.c
new file mode 100644
index 0000000..874dc1f
--- /dev/null
+++ b/src/device_manager_io.c
@@ -0,0 +1,179 @@
+/*
+* Copyright (c) 2012 Intel Co., Ltd All Rights Reserved
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <devman_plugin_intf.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#define EXPORT_API  __attribute__((visibility("default")))
+
+#define BUFF_MAX	255
+#define SUCCESS		0
+#define	FAIL		1
+
+int sys_check_node(char *path)
+{
+	int fd = -1;
+
+	fd = open(path, O_RDONLY);
+
+	if (fd == -1)
+		return -1;
+
+	close(fd);
+	return 0;
+}
+
+int sys_get_node(char *path, char *node)
+{
+	if (0 >= snprintf(node, strlen(path) + 1, "%s", path))
+		return -1;
+
+	return 0;
+}
+
+int sys_get_int_wo_convert(char *path, int *value)
+{
+	int fd = -1;
+
+	fd = open(path, O_RDONLY);
+	if (fd == -1) {
+		return -1;
+	}
+
+	if (0 > read(fd, value, sizeof(int))) {
+		close(fd);
+		return -1;
+	}
+	close (fd);
+
+	return 0;
+}
+
+int sys_set_int_wo_convert(char *path, int value)
+{
+	int fd = -1;
+
+	fd = open(path, O_WRONLY);
+	if (fd == -1) {
+		return -1;
+	}
+
+	if (0 > write(fd, &value, sizeof(int))) {
+		close(fd);
+		return -1;
+	}
+	close(fd);
+
+	return 0;
+}
+
+static int sys_read_buf(char *file, char *buf)
+{
+	int fd;
+	int r;
+
+	fd = open(file, O_RDONLY);
+	if (fd == -1) {
+		return -ENOENT;
+	}
+
+	r = read(fd, buf, BUFF_MAX-1);
+	if ((r >= 0) && (r < BUFF_MAX))
+		buf[r] = '\0';
+	else {
+		return -EIO;
+	}
+
+	close(fd);
+
+	return 0;
+}
+
+static int sys_write_buf(char *file, char *buf)
+{
+	int fd;
+	int r;
+
+	fd = open(file, O_WRONLY);
+	if (fd == -1) {
+		return -1;
+	}
+
+	r = write(fd, buf, strlen(buf));
+	close(fd);
+	if (r < 0) {
+		return -1;
+	}
+
+	return 0;
+}
+
+int sys_get_int(char *fname, int *val)
+{
+	char buf[BUFF_MAX];
+
+	if (sys_read_buf(fname, buf) == 0) {
+		*val = atoi(buf);
+		return 0;
+	} else {
+		*val = -1;
+		return -1;
+	}
+}
+
+int sys_get_str(char *fname, char *str)
+{
+	char buf[BUFF_MAX] = {0};
+
+	if (sys_read_buf(fname, buf) == 0)
+	{
+		strncpy(str, buf, strlen(buf));
+		return 0;
+	}
+
+	return -1;
+}
+
+int sys_set_int(char *fname, int val)
+{
+	char buf[BUFF_MAX];
+	int r = -1;
+	snprintf(buf, sizeof(buf), "%d", val);
+
+	if (sys_write_buf(fname, buf) == 0)
+		r = 0;
+
+	return r;
+}
+
+int sys_set_str(char *fname, char *val)
+{
+	int r = -1;
+
+	if (val != NULL) {
+		if (sys_write_buf(fname, val) == 0)
+			r = 0;
+	}
+
+	return r;
+}