| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 1 | cat << EOF |
| 2 | /** | ||||
| 3 | * ${atomic}_add_unless - add unless the number is already a given value | ||||
| 4 | * @v: pointer of type ${atomic}_t | ||||
| 5 | * @a: the amount to add to v... | ||||
| 6 | * @u: ...unless v is equal to u. | ||||
| 7 | * | ||||
| 8 | * Atomically adds @a to @v, if @v was not already @u. | ||||
| 9 | * Returns true if the addition was done. | ||||
| 10 | */ | ||||
| 11 | static inline bool | ||||
| 12 | ${atomic}_add_unless(${atomic}_t *v, ${int} a, ${int} u) | ||||
| 13 | { | ||||
| 14 | return ${atomic}_fetch_add_unless(v, a, u) != u; | ||||
| 15 | } | ||||
| 16 | EOF | ||||