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bugfixes:

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* set invalid page on all removed files which have cache entries.
* update file cache entries earlier to prevent overwrites.
This commit is contained in:
nvt-se 2009-03-19 20:44:43 +00:00
parent 571c815ad3
commit b7bdfe8daf
1 changed files with 14 additions and 15 deletions
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29
core/cfs/cfs-coffee.c
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@ -483,7 +483,7 @@ static int
remove_by_page(coffee_page_t page, int remove_log, int close_fds) remove_by_page(coffee_page_t page, int remove_log, int close_fds)
{ {
struct file_header hdr; struct file_header hdr;
int i, last_valid; int i;
read_header(&hdr, page); read_header(&hdr, page);
if(!HDR_ACTIVE(hdr)) { if(!HDR_ACTIVE(hdr)) {
@ -501,17 +501,17 @@ remove_by_page(coffee_page_t page, int remove_log, int close_fds)
/* Close all file descriptors that reference the removed file. */ /* Close all file descriptors that reference the removed file. */
if(close_fds) { if(close_fds) {
last_valid = -1;
for(i = 0; i < COFFEE_FD_SET_SIZE; i++) { for(i = 0; i < COFFEE_FD_SET_SIZE; i++) {
if(coffee_fd_set[i].file != NULL && coffee_fd_set[i].file->page == page) { if(coffee_fd_set[i].file != NULL && coffee_fd_set[i].file->page == page) {
coffee_fd_set[i].flags = COFFEE_FD_FREE; coffee_fd_set[i].flags = COFFEE_FD_FREE;
last_valid = i; }
} }
} }
if(last_valid >= 0) { for(i = 0; i < COFFEE_MAX_OPEN_FILES; i++) {
coffee_fd_set[last_valid].file->page = INVALID_PAGE; if(coffee_files[i].page == page) {
coffee_fd_set[last_valid].file->references = 0; coffee_files[i].page = INVALID_PAGE;
coffee_files[i].references = 0;
} }
} }
@ -755,6 +755,14 @@ merge_log(coffee_page_t file_page, int extend)
} }
} while(n != 0); } while(n != 0);
for(i = 0; i < COFFEE_FD_SET_SIZE; i++) {
if(coffee_fd_set[i].flags != COFFEE_FD_FREE &&
coffee_fd_set[i].file->page == file_page) {
coffee_fd_set[i].file = new_file;
new_file->references++;
}
}
if(remove_by_page(file_page, 1, 0) < 0) { if(remove_by_page(file_page, 1, 0) < 0) {
remove_by_page(new_file->page, 0, 0); remove_by_page(new_file->page, 0, 0);
cfs_close(fd); cfs_close(fd);
@ -777,14 +785,6 @@ merge_log(coffee_page_t file_page, int extend)
cfs_close(fd); cfs_close(fd);
for(i = 0; i < COFFEE_FD_SET_SIZE; i++) {
if(coffee_fd_set[i].flags != COFFEE_FD_FREE &&
coffee_fd_set[i].file->page == file_page) {
coffee_fd_set[i].file = new_file;
new_file->references++;
}
}
return 0; return 0;
} }
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
@ -1003,7 +1003,6 @@ cfs_remove(const char *name)
* sweeped by the garbage collector. The garbage collector is * sweeped by the garbage collector. The garbage collector is
* called once a file reservation request cannot be granted. * called once a file reservation request cannot be granted.
*/ */
file = find_file(name); file = find_file(name);
if(file == NULL) { if(file == NULL) {
return -1; return -1;