static
void am_tm_wrs_mail()
{
debug = nvram_get_int("alert_mail_debug");
char path[30];
memset(path, 0, sizeof(path));
// AiProtection wrs_vp.txt
int flag = merge_log(path);
if(debug)
{
dbg("%s : flag = %d, path = %s\n", __FUNCTION__, flag, path);
logmessage("alert mail", "AiProtection - flag = %d, path = %s", flag, path);
}
// check flag and path
if(flag && strcmp(path, "")) am_send_mail(TM_WRS_MAIL , path);
}
static int
write_log_page(struct file *file, struct log_param *lp)
{
struct file_header hdr;
uint16_t region;
coffee_page_t log_page;
int16_t log_record;
uint16_t log_record_size;
uint16_t log_records;
cfs_offset_t offset;
struct log_param lp_out;
read_header(&hdr, file->page);
adjust_log_config(&hdr, &log_record_size, &log_records);
region = modify_log_buffer(log_record_size, &lp->offset, &lp->size);
log_page = 0;
if(HDR_MODIFIED(hdr)) {
/* A log structure has already been created. */
log_page = hdr.log_page;
log_record = find_next_record(file, log_page, log_records);
if(log_record >= log_records) {
/* The log is full; merge the log. */
PRINTF(("Coffee: Merging the file %s with its log\n", hdr.name));
return merge_log(file->page, 0);
}
} else {
/* Create a log structure. */
log_page = create_log(file, &hdr);
if(log_page == INVALID_PAGE) {
return -1;
}
PRINTF(("Coffee: Created a log structure for file %s at page %u\n",
hdr.name, (unsigned)log_page));
hdr.log_page = log_page;
log_record = 0;
}
{
char copy_buf[log_record_size];
lp_out.offset = offset = region * log_record_size;
lp_out.buf = copy_buf;
lp_out.size = log_record_size;
if((lp->offset > 0 || lp->size != log_record_size) &&
read_log_page(&hdr, log_record, &lp_out) < 0) {
COFFEE_READ(copy_buf, sizeof(copy_buf),
absolute_offset(file->page, offset));
}
memcpy(©_buf[lp->offset], lp->buf, lp->size);
/*
* Write the region number in the region index table.
* The region number is incremented to avoid values of zero.
*/
offset = absolute_offset(log_page, 0);
++region;
COFFEE_WRITE(®ion, sizeof(region),
offset + log_record * sizeof(region));
offset += log_records * sizeof(region);
COFFEE_WRITE(copy_buf, sizeof(copy_buf),
offset + log_record * log_record_size);
file->record_count = log_record + 1;
}
return lp->size;
}
/*---------------------------------------------------------------------------*/
int
cfs_write(int fd, const void *buf, unsigned size)
{
struct file_desc *fdp;
struct file *file;
#if COFFEE_MICRO_LOGS
int i;
struct log_param lp;
cfs_offset_t bytes_left;
const char dummy[1] = { 0xff };
#endif
if(!(FD_VALID(fd) && FD_WRITABLE(fd))) {
return -1;
}
fdp = &coffee_fd_set[fd];
file = fdp->file;
/* Attempt to extend the file if we try to write past the end. */
#if COFFEE_IO_SEMANTICS
if(!(fdp->io_flags & CFS_COFFEE_IO_FIRM_SIZE)) {
#endif
while(size + fdp->offset + sizeof(struct file_header) >
(file->max_pages * COFFEE_PAGE_SIZE)) {
if(merge_log(file->page, 1) < 0) {
return -1;
}
file = fdp->file;
PRINTF(("Extended the file at page %u\n", (unsigned)file->page));
}
#if COFFEE_IO_SEMANTICS
}
#endif
#if COFFEE_MICRO_LOGS
#if COFFEE_IO_SEMANTICS
if(!(fdp->io_flags & CFS_COFFEE_IO_FLASH_AWARE) &&
(FILE_MODIFIED(file) || fdp->offset < file->end)) {
#else
if(FILE_MODIFIED(file) || fdp->offset < file->end) {
#endif
for(bytes_left = size; bytes_left > 0;) {
lp.offset = fdp->offset;
lp.buf = buf;
lp.size = bytes_left;
i = write_log_page(file, &lp);
if(i < 0) {
/* Return -1 if we wrote nothing because the log write failed. */
if(size == bytes_left) {
return -1;
}
break;
} else if(i == 0) {
/* The file was merged with the log. */
file = fdp->file;
} else {
/* A log record was written. */
bytes_left -= i;
fdp->offset += i;
buf = (char *)buf + i;
/* Update the file end for a potential log merge that might
occur while writing log records. */
if(fdp->offset > file->end) {
file->end = fdp->offset;
}
}
}
if(fdp->offset > file->end) {
/* Update the original file's end with a dummy write. */
COFFEE_WRITE(dummy, 1, absolute_offset(file->page, fdp->offset));
}
} else {
#endif /* COFFEE_MICRO_LOGS */
#if COFFEE_APPEND_ONLY
if(fdp->offset < file->end) {
return -1;
}
#endif /* COFFEE_APPEND_ONLY */
COFFEE_WRITE(buf, size, absolute_offset(file->page, fdp->offset));
fdp->offset += size;
#if COFFEE_MICRO_LOGS
}
#endif /* COFFEE_MICRO_LOGS */
if(fdp->offset > file->end) {
file->end = fdp->offset;
}
return size;
}
/*---------------------------------------------------------------------------*/
int
cfs_opendir(struct cfs_dir *dir, const char *name)
{
/*
* Coffee is only guaranteed to support "/" and ".", but it does not
* currently enforce this.
*/
memset(dir->dummy_space, 0, sizeof(coffee_page_t));
return 0;
}
/*---------------------------------------------------------------------------*/
int
cfs_write(int fd, const void *buf, unsigned size)
{
struct file_desc *fdp;
struct file *file;
#if COFFEE_MICRO_LOGS
int i;
struct log_param lp;
cfs_offset_t bytes_left;
const char dummy[1] = { 0xff };
#endif
if(!(FD_VALID(fd) && FD_WRITABLE(fd))) {
return -1;
}
fdp = &coffee_fd_set[fd];
file = fdp->file;
/* Attempt to extend the file if we try to write past the end. */
while(size + fdp->offset + sizeof(struct file_header) >
(file->max_pages * COFFEE_PAGE_SIZE)) {
if(merge_log(file->page, 1) < 0) {
return -1;
}
file = fdp->file;
PRINTF("Extended the file at page %u\n", (unsigned)file->page);
}
#if COFFEE_MICRO_LOGS
if(FILE_MODIFIED(file) || fdp->offset < file->end) {
bytes_left = size;
while(bytes_left) {
lp.offset = fdp->offset;
lp.buf = buf;
lp.size = bytes_left;
i = write_log_page(file, &lp);
if(i < 0) {
/* Return -1 if we wrote nothing because the log write failed. */
if(size == bytes_left) {
return -1;
}
break;
} else if(i == 0) {
/* The file was merged with the log. */
file = fdp->file;
} else {
/* A log record was written. */
bytes_left -= i;
fdp->offset += i;
buf += i;
}
}
if(fdp->offset > file->end) {
/* Update the original file's end with a dummy write. */
COFFEE_WRITE(dummy, 1, absolute_offset(file->page, fdp->offset));
}
} else {
#endif /* COFFEE_MICRO_LOGS */
#if COFFEE_APPEND_ONLY
if(fdp->offset < file->end) {
return -1;
}
#endif /* COFFEE_APPEND_ONLY */
COFFEE_WRITE(buf, size, absolute_offset(file->page, fdp->offset));
fdp->offset += size;
#if COFFEE_MICRO_LOGS
}
#endif /* COFFEE_MICRO_LOGS */
if(fdp->offset > file->end) {
file->end = fdp->offset;
}
return size;
}
