diff options
Diffstat (limited to 'libbuild2/algorithm.hxx')
| -rw-r--r-- | libbuild2/algorithm.hxx | 88 |
1 files changed, 74 insertions, 14 deletions
diff --git a/libbuild2/algorithm.hxx b/libbuild2/algorithm.hxx index 983e7f5..19f7db2 100644 --- a/libbuild2/algorithm.hxx +++ b/libbuild2/algorithm.hxx @@ -363,25 +363,34 @@ namespace build2 // to be unchanged after match. If it is unmatch::safe, then unmatch the // target if it is safe (this includes unchanged or if we know that someone // else will execute this target). Return true in first half of the pair if - // unmatch succeeded. Always throw if failed. + // unmatch succeeded. Always throw if failed. Note that unmatching may not + // play well with options -- if unmatch succeeds, the options that have been + // passed to match will not be cleared. // enum class unmatch {none, unchanged, safe}; target_state - match_sync (action, const target&, bool fail = true); + match_sync (action, const target&, + uint64_t options = match_extra::all_options, + bool fail = true); pair<bool, target_state> - try_match_sync (action, const target&, bool fail = true); + try_match_sync (action, const target&, + uint64_t options = match_extra::all_options, + bool fail = true); pair<bool, target_state> - match_sync (action, const target&, unmatch); + match_sync (action, const target&, + unmatch, + uint64_t options = match_extra::all_options); // As above but only match the target (unless already matched) without // applying the match (which is normally done with match_sync()). You will // most likely regret using this function. // LIBBUILD2_SYMEXPORT void - match_only_sync (action, const target&); + match_only_sync (action, const target&, + uint64_t options = match_extra::all_options); // Start asynchronous match. Return target_state::postponed if the // asynchronous operation has been started and target_state::busy if the @@ -393,16 +402,23 @@ namespace build2 // failed. Otherwise, throw the failed exception if keep_going is false and // return target_state::failed otherwise. // + // Note: same options must be passed to match_async() and match_complete(). + // target_state match_async (action, const target&, size_t start_count, atomic_count& task_count, + uint64_t options = match_extra::all_options, bool fail = true); target_state - match_complete (action, const target&, bool fail = true); + match_complete (action, const target&, + uint64_t options = match_extra::all_options, + bool fail = true); pair<bool, target_state> - match_complete (action, const target&, unmatch); + match_complete (action, const target&, + unmatch, + uint64_t options = match_extra::all_options); // As above but without incrementing the target's dependents count. Should // be executed with execute_direct_*(). @@ -410,22 +426,34 @@ namespace build2 // For async, call match_async() followed by match_direct_complete(). // target_state - match_direct_sync (action, const target&, bool fail = true); + match_direct_sync (action, const target&, + uint64_t options = match_extra::all_options, + bool fail = true); target_state - match_direct_complete (action, const target&, bool fail = true); + match_direct_complete (action, const target&, + uint64_t options = match_extra::all_options, + bool fail = true); // Apply the specified recipe directly and without incrementing the // dependency counts. The target must be locked. // + // Note that there will be no way to rematch on options change (since there + // is no rule), so passing anything other than all_options is most likely a + // bad idea. + // void - match_recipe (target_lock&, recipe); + match_recipe (target_lock&, + recipe, + uint64_t options = match_extra::all_options); // Match (but do not apply) the specified rule directly and without // incrementing the dependency counts. The target must be locked. // void - match_rule (target_lock&, const rule_match&); + match_rule (target_lock&, + const rule_match&, + uint64_t options = match_extra::all_options); // Match a "delegate rule" from withing another rules' apply() function // avoiding recursive matches (thus the third argument). Unless try_match is @@ -434,7 +462,10 @@ namespace build2 // See also the companion execute_delegate(). // recipe - match_delegate (action, target&, const rule&, bool try_match = false); + match_delegate (action, target&, + const rule&, + uint64_t options = match_extra::all_options, + bool try_match = false); // Incrementing the dependency counts of the specified target. // @@ -446,10 +477,39 @@ namespace build2 // and inner_recipe. // target_state - match_inner (action, const target&); + match_inner (action, const target&, + uint64_t options = match_extra::all_options); pair<bool, target_state> - match_inner (action, const target&, unmatch); + match_inner (action, const target&, + unmatch, + uint64_t options = match_extra::all_options); + + // Re-match with new options a target that has already been matched with one + // of the match_*() functions. Note that natually you cannot rematch a + // target that you have unmatched. + // + // Note also that there is no way to check if the rematch is unnecessary + // (i.e., because the target is already matched with this option) because + // that would require MT-safety considerations (since there could be a + // concurrent rematch). Instead, you should rematch unconditionally and if + // the option is already present, it will be a cheap noop. + // + target_state + rematch_sync (action, const target&, + uint64_t options, + bool fail = true); + + target_state + rematch_async (action, const target&, + size_t start_count, atomic_count& task_count, + uint64_t options, + bool fail = true); + + target_state + rematch_complete (action, const target&, + uint64_t options, + bool fail = true); // The standard prerequisite search and match implementations. They call // search() (unless a custom is provided) and then match() (unless custom |