| … | |
… | |
| 3885 | EV_PREPARE_ENABLE, EV_CHECK_ENABLE, EV_FORK_ENABLE, EV_SIGNAL_ENABLE, |
3885 | EV_PREPARE_ENABLE, EV_CHECK_ENABLE, EV_FORK_ENABLE, EV_SIGNAL_ENABLE, |
| 3886 | EV_ASYNC_ENABLE, EV_CHILD_ENABLE. |
3886 | EV_ASYNC_ENABLE, EV_CHILD_ENABLE. |
| 3887 | |
3887 | |
| 3888 | If undefined or defined to be C<1> (and the platform supports it), then |
3888 | If undefined or defined to be C<1> (and the platform supports it), then |
| 3889 | the respective watcher type is supported. If defined to be C<0>, then it |
3889 | the respective watcher type is supported. If defined to be C<0>, then it |
| 3890 | is not. Disabling watcher types mainly saves codesize. |
3890 | is not. Disabling watcher types mainly saves code size. |
| 3891 | |
3891 | |
| 3892 | =item EV_FEATURES |
3892 | =item EV_FEATURES |
| 3893 | |
3893 | |
| 3894 | If you need to shave off some kilobytes of code at the expense of some |
3894 | If you need to shave off some kilobytes of code at the expense of some |
| 3895 | speed (but with the full API), you can define this symbol to request |
3895 | speed (but with the full API), you can define this symbol to request |
| … | |
… | |
| 3915 | |
3915 | |
| 3916 | =item C<1> - faster/larger code |
3916 | =item C<1> - faster/larger code |
| 3917 | |
3917 | |
| 3918 | Use larger code to speed up some operations. |
3918 | Use larger code to speed up some operations. |
| 3919 | |
3919 | |
| 3920 | Currently this is used to override some inlining decisions (enlarging the roughly |
3920 | Currently this is used to override some inlining decisions (enlarging the |
| 3921 | 30% code size on amd64. |
3921 | code size by roughly 30% on amd64). |
| 3922 | |
3922 | |
| 3923 | When optimising for size, use of compiler flags such as C<-Os> with |
3923 | When optimising for size, use of compiler flags such as C<-Os> with |
| 3924 | gcc recommended, as well as C<-DNDEBUG>, as libev contains a number of |
3924 | gcc is recommended, as well as C<-DNDEBUG>, as libev contains a number of |
| 3925 | assertions. |
3925 | assertions. |
| 3926 | |
3926 | |
| 3927 | =item C<2> - faster/larger data structures |
3927 | =item C<2> - faster/larger data structures |
| 3928 | |
3928 | |
| 3929 | Replaces the small 2-heap for timer management by a faster 4-heap, larger |
3929 | Replaces the small 2-heap for timer management by a faster 4-heap, larger |
| 3930 | hash table sizes and so on. This will usually further increase codesize |
3930 | hash table sizes and so on. This will usually further increase code size |
| 3931 | and can additionally have an effect on the size of data structures at |
3931 | and can additionally have an effect on the size of data structures at |
| 3932 | runtime. |
3932 | runtime. |
| 3933 | |
3933 | |
| 3934 | =item C<4> - full API configuration |
3934 | =item C<4> - full API configuration |
| 3935 | |
3935 | |
| … | |
… | |
| 3972 | I/O watcher then might come out at only 5Kb. |
3972 | I/O watcher then might come out at only 5Kb. |
| 3973 | |
3973 | |
| 3974 | =item EV_AVOID_STDIO |
3974 | =item EV_AVOID_STDIO |
| 3975 | |
3975 | |
| 3976 | If this is set to C<1> at compiletime, then libev will avoid using stdio |
3976 | If this is set to C<1> at compiletime, then libev will avoid using stdio |
| 3977 | functions (printf, scanf, perror etc.). This will increase the codesize |
3977 | functions (printf, scanf, perror etc.). This will increase the code size |
| 3978 | somewhat, but if your program doesn't otherwise depend on stdio and your |
3978 | somewhat, but if your program doesn't otherwise depend on stdio and your |
| 3979 | libc allows it, this avoids linking in the stdio library which is quite |
3979 | libc allows it, this avoids linking in the stdio library which is quite |
| 3980 | big. |
3980 | big. |
| 3981 | |
3981 | |
| 3982 | Note that error messages might become less precise when this option is |
3982 | Note that error messages might become less precise when this option is |
