fixed bug with eof hint
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parent
f122654317
commit
86bce2636d
1 changed files with 15 additions and 8 deletions
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@ -306,7 +306,8 @@ find_offset_in_file(int first_page)
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unsigned char buf[COFFEE_PAGE_SIZE];
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unsigned char buf[COFFEE_PAGE_SIZE];
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int page;
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int page;
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int i;
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int i;
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int search_limit, range_start, range_end, part_size;
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int search_limit;
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uint32_t range_start, range_end, part_size;
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READ_HEADER(&hdr, first_page);
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READ_HEADER(&hdr, first_page);
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for(search_limit = i = 0; i < sizeof(hdr.eof_hint) * CHAR_BIT; i++) {
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for(search_limit = i = 0; i < sizeof(hdr.eof_hint) * CHAR_BIT; i++) {
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@ -315,6 +316,9 @@ find_offset_in_file(int first_page)
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}
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}
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}
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}
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part_size = hdr.max_pages / sizeof(hdr.eof_hint) / CHAR_BIT;
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part_size = hdr.max_pages / sizeof(hdr.eof_hint) / CHAR_BIT;
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if(part_size == 0) {
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part_size = 1;
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}
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range_start = part_size * search_limit;
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range_start = part_size * search_limit;
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range_end = range_start + part_size;
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range_end = range_start + part_size;
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@ -612,10 +616,11 @@ flush_log(uint16_t file_page)
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return -1;
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return -1;
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}
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}
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/* Copy the log configuration. */
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/* Copy the log configuration and the EOF hint. */
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READ_HEADER(&hdr2, new_file_page);
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READ_HEADER(&hdr2, new_file_page);
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hdr2.log_entry_size = hdr.log_entry_size;
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hdr2.log_entry_size = hdr.log_entry_size;
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hdr2.log_entries = hdr.log_entries;
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hdr2.log_entries = hdr.log_entries;
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hdr2.eof_hint = hdr.eof_hint;
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WRITE_HEADER(&hdr2, new_file_page);
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WRITE_HEADER(&hdr2, new_file_page);
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/* Point the file descriptors to the new file page. */
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/* Point the file descriptors to the new file page. */
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@ -799,7 +804,9 @@ cfs_close(int fd)
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READ_HEADER(&hdr, coffee_fd_set[fd].file_page);
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READ_HEADER(&hdr, coffee_fd_set[fd].file_page);
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current_page = (coffee_fd_set[fd].end + COFFEE_PAGE_SIZE - 1) / COFFEE_PAGE_SIZE;
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current_page = (coffee_fd_set[fd].end + COFFEE_PAGE_SIZE - 1) / COFFEE_PAGE_SIZE;
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part_size = hdr.max_pages / (sizeof(hdr.eof_hint) * CHAR_BIT);
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part_size = hdr.max_pages / (sizeof(hdr.eof_hint) * CHAR_BIT);
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if(part_size == 0) {
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part_size = 1;
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}
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for(i = eof_hint = 0; i < sizeof(eof_hint) * CHAR_BIT; i++) {
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for(i = eof_hint = 0; i < sizeof(eof_hint) * CHAR_BIT; i++) {
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eof_hint |= (current_page > (i + 1) * part_size) << i;
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eof_hint |= (current_page > (i + 1) * part_size) << i;
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}
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}
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@ -821,9 +828,9 @@ cfs_seek(int fd, unsigned offset)
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if(!FD_VALID(fd)) {
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if(!FD_VALID(fd)) {
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return -1;
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return -1;
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}
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}
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READ_HEADER(&hdr, coffee_fd_set[fd].file_page);
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READ_HEADER(&hdr, coffee_fd_set[fd].file_page);
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if(sizeof(hdr) + offset >= hdr.max_pages * COFFEE_PAGE_SIZE) {
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if(sizeof(hdr) + offset >= hdr.max_pages * COFFEE_PAGE_SIZE ||
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sizeof(hdr) + offset < offset) {
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/* XXX: Try to extend the file here? */
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/* XXX: Try to extend the file here? */
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return -1;
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return -1;
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}
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}
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@ -1002,7 +1009,7 @@ cfs_closedir(struct cfs_dir *dir)
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}
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}
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/*---------------------------------------------------------------------------*/
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/*---------------------------------------------------------------------------*/
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int
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int
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cfs_coffee_reserve(const char *name, uint32_t size)
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cfs_coffee_reserve(const char *name, uint16_t size)
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{
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{
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struct file_header hdr;
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struct file_header hdr;
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unsigned need_pages;
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unsigned need_pages;
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