Rev 2707 | Rev 2711 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 2707 | Rev 2710 | ||
|---|---|---|---|
| Line 495... | Line 495... | ||
| 495 | * Check whether the file needs to grow. |
495 | * Check whether the file needs to grow. |
| 496 | */ |
496 | */ |
| 497 | if (pos + len <= dentry->size) { |
497 | if (pos + len <= dentry->size) { |
| 498 | /* The file size is not changing. */ |
498 | /* The file size is not changing. */ |
| 499 | (void) ipc_data_write_finalize(callid, dentry->data + pos, len); |
499 | (void) ipc_data_write_finalize(callid, dentry->data + pos, len); |
| 500 | ipc_answer_1(rid, EOK, len); |
500 | ipc_answer_2(rid, EOK, len, dentry->size); |
| 501 | return; |
501 | return; |
| 502 | } |
502 | } |
| 503 | size_t delta = (pos + len) - dentry->size; |
503 | size_t delta = (pos + len) - dentry->size; |
| 504 | /* |
504 | /* |
| 505 | * At this point, we are deliberately extremely straightforward and |
505 | * At this point, we are deliberately extremely straightforward and |
| Line 509... | Line 509... | ||
| 509 | * possible. |
509 | * possible. |
| 510 | */ |
510 | */ |
| 511 | void *newdata = realloc(dentry->data, dentry->size + delta); |
511 | void *newdata = realloc(dentry->data, dentry->size + delta); |
| 512 | if (!newdata) { |
512 | if (!newdata) { |
| 513 | ipc_answer_0(callid, ENOMEM); |
513 | ipc_answer_0(callid, ENOMEM); |
| 514 | ipc_answer_1(rid, EOK, 0); |
514 | ipc_answer_2(rid, EOK, 0, dentry->size); |
| 515 | return; |
515 | return; |
| 516 | } |
516 | } |
| 517 | /* Clear any newly allocated memory in order to emulate gaps. */ |
517 | /* Clear any newly allocated memory in order to emulate gaps. */ |
| 518 | memset(newdata + dentry->size, 0, delta); |
518 | memset(newdata + dentry->size, 0, delta); |
| 519 | dentry->size += delta; |
519 | dentry->size += delta; |