path: root/tvapi/libtv/tvsetting/CBlobDeviceFile.cpp (plain)
blob: cd6f10a9ab5436e03c5b5862bb738bf992299c56

1	#include <stdio.h>
2	#include <unistd.h>
3	#include <string.h>
4	#include <sys/stat.h>
5	#include <fcntl.h>
6	#include <errno.h>
7	#include "tvconfig/tvconfig.h"
8	#include "CBlobDeviceFile.h"
9	#include "CTvLog.h"
10
11
12
13	#define LOG_TAG "BLOB_FILE"
14
15	CBlobDeviceFile::CBlobDeviceFile()
16	{
17	m_dev_total_size = 4 * 1024;
18	m_dev_fd = -1;
19	mDataBuf = new unsigned char[m_dev_total_size];
20
21	const char *device_path = config_get_str(CFG_SECTION_SETTING, "device_path", "/param/default_data");
22	const char *device_size = config_get_str(CFG_SECTION_SETTING, "device_size", "0x1000");
23	strcpy(m_dev_path, device_path);
24	}
25
26	CBlobDeviceFile::~CBlobDeviceFile()
27	{
28	if (mDataBuf != NULL) {
29	delete mDataBuf;
30	mDataBuf = NULL;
31	}
32	CloseDevice();
33	}
34
35	int CBlobDeviceFile::WriteBytes(int offset, int size, unsigned char *buf)
36	{
37
38	lseek(m_dev_fd, offset, SEEK_SET);
39	write(m_dev_fd, buf, size);
40	//not need
41	//fsync(device_fd);
42	return 0;
43	}
44	int CBlobDeviceFile::ReadBytes(int offset, int size, unsigned char *buf)
45	{
46	lseek(m_dev_fd, offset, SEEK_SET);
47	read(m_dev_fd, buf, size);
48	return 0;
49	}
50	int CBlobDeviceFile::EraseAllData()
51	{
52	return 0;
53	}
54	int CBlobDeviceFile::InitCheck()
55	{
56	return 0;
57	}
58
59	int CBlobDeviceFile::OpenDevice()
60	{
61	if (strlen(m_dev_path) <= 0) return -1;
62
63	m_dev_fd = open(m_dev_path, O_RDWR | O_SYNC | O_CREAT, S_IRUSR | S_IWUSR);
64
65	if (m_dev_fd < 0) {
66	LOGE("%s, Open device file \"%s\" error: %s.\n", "TV", m_dev_path, strerror(errno));
67	return -1;
68	}
69
70	return 0;
71	}
72
73	int CBlobDeviceFile::CloseDevice()
74	{
75	if (m_dev_fd >= 0) {
76	close(m_dev_fd);
77	m_dev_fd = -1;
78	}
79	return 0;
80	}
81