| 51,13 → 51,24 |
|---|
| * @param size New requested size of the area. |
| * @param flags Currently unused. |
| * |
| * @return address on success, (void *) -1 otherwise. |
| * @return Zero on success or a code from @ref errno.h on failure. |
| */ |
| void *as_area_resize(void *address, size_t size, int flags) |
| int as_area_resize(void *address, size_t size, int flags) |
| { |
| return (void *) __SYSCALL3(SYS_AS_AREA_RESIZE, (sysarg_t ) address, (sysarg_t) size, (sysarg_t) flags); |
| return __SYSCALL3(SYS_AS_AREA_RESIZE, (sysarg_t ) address, (sysarg_t) size, (sysarg_t) flags); |
| } |
| |
| /** Destroy address space area. |
| * |
| * @param address Virtual address pointing into the address space area being destroyed. |
| * |
| * @return Zero on success or a code from @ref errno.h on failure. |
| */ |
| int as_area_destroy(void *address) |
| { |
| return __SYSCALL1(SYS_AS_AREA_DESTROY, (sysarg_t ) address); |
| } |
| |
| /** Prepare to accept address space area. |
| * |
| * @param id Task ID of the donor task. |
| 110,6 → 121,7 |
|---|
| */ |
| void *sbrk(ssize_t incr) |
| { |
| int rc; |
| void *res; |
| /* Check for invalid values */ |
| if (incr < 0 && -incr > heapsize) |
| 121,8 → 133,8 |
|---|
| if (incr < 0 && incr+heapsize > heapsize) |
| return NULL; |
| |
| res = as_area_resize(&_heap, heapsize + incr,0); |
| if (!res) |
| rc = as_area_resize(&_heap, heapsize + incr,0); |
| if (rc != 0) |
| return NULL; |
| |
| /* Compute start of new area */ |