/** inspect buffers
* inspb [<mount>]
*/
static int cmd_inspb(int argc, char *argv[])
{
uffs_Device *dev;
const char *mount = "/";
CHK_ARGC(1, 2);
dev = uffs_GetDeviceFromMountPoint(mount);
if (dev == NULL) {
MSGLN("Can't get device from mount point %s", mount);
return -1;
}
uffs_BufInspect(dev);
uffs_PutDevice(dev);
return 0;
}
/*
* This verify the bug fixed by commit dede97b1.
* The bug caused a clone buf failure and UFFS complain something like "no enough free pages for clone!".
*/
static int cmd_t_dede97b1(int argc, char *argv[])
{
// assume:
// total page buf: 40
// page size: 512
// pages per block: 32
// spare size: 16
#define LEN_A (508 * 30) // 30 pages
#define LEN_B (508 * 10) // 10 pages
int fd = -1;
URET ret = -1;
const int START_A = 508 * 31; // the second block
const int START_B = START_A + 508 * 32; // the third block
const char *name;
char buf_a[LEN_A];
char buf_b[LEN_B];
uffs_Device *dev;
const char *mount = "/";
if (argc < 2) {
return CLI_INVALID_ARG;
}
name = argv[1];
fd = uffs_open(name, UO_RDWR);
if (fd < 0) {
MSGLN("Can't open %s", name);
goto ext;
}
///
/// READ A
///
ret = uffs_seek(fd, START_A, USEEK_SET);
if (ret != START_A) {
MSGLN("lseek return %d\n", ret);
goto ext;
}
sprintf(buf_a, "start test, read %d bytes...", LEN_A);
ret = uffs_read(fd, buf_a, LEN_A);
if (ret != LEN_A) {
MSGLN("read file failed, ret = %d", ret);
ret = -1;
goto ext;
}
else {
MSGLN("read %d bytes succ.", ret);
}
MSGLN("now print buf status:");
dev = uffs_GetDeviceFromMountPoint(mount);
if (dev == NULL) {
MSGLN("Can't get device from mount point %s", mount);
ret = -1;
goto ext;
}
uffs_BufInspect(dev);
uffs_PutDevice(dev);
///
/// READ B
///
ret = uffs_seek(fd, START_B, USEEK_SET);
if (ret != START_B) {
MSGLN("lseek return %d\n", ret);
goto ext;
}
sprintf(buf_b, "start test, read %d bytes...", LEN_B);
ret = uffs_read(fd, buf_b, LEN_B);
if (ret != LEN_B) {
MSGLN("read file failed, ret = %d", ret);
ret = -1;
goto ext;
}
else {
MSGLN("read %d bytes succ.", ret);
}
MSGLN("now print buf status:");
dev = uffs_GetDeviceFromMountPoint(mount);
if (dev == NULL) {
MSGLN("Can't get device from mount point %s", mount);
ret = -1;
goto ext;
}
uffs_BufInspect(dev);
uffs_PutDevice(dev);
///
/// WRITE A
///
ret = uffs_seek(fd, START_A, USEEK_SET);
if (ret != START_A) {
MSGLN("lseek return %d\n", ret);
goto ext;
}
MSGLN("now try write %d bytes...", LEN_A);
ret = uffs_write(fd, buf_a, LEN_A);
if (ret != LEN_A) {
MSGLN("write %d bytes failed, return %d\n", LEN_A, ret);
ret = -1;
goto ext;
}
MSGLN("now print buf status again:");
dev = uffs_GetDeviceFromMountPoint(mount);
if (dev == NULL) {
MSGLN("Can't get device from mount point %s", mount);
ret = -1;
goto ext;
}
uffs_BufInspect(dev);
uffs_PutDevice(dev);
///
/// WRITE B
///
ret = uffs_seek(fd, START_B, USEEK_SET);
if (ret != START_B) {
MSGLN("lseek return %d\n", ret);
goto ext;
}
MSGLN("now try write %d bytes...", LEN_B);
ret = uffs_write(fd, buf_b, LEN_B);
if (ret != LEN_B) {
MSGLN("write %d bytes failed, return %d\n", LEN_B, ret);
ret = -1;
goto ext;
}
MSGLN("now print buf status again:");
dev = uffs_GetDeviceFromMountPoint(mount);
if (dev == NULL) {
MSGLN("Can't get device from mount point %s", mount);
ret = -1;
goto ext;
}
uffs_BufInspect(dev);
uffs_PutDevice(dev);
ret = 0;
MSGLN("test completed.");
ext:
if (fd >= 0)
uffs_close(fd);
return ret;
}
