| 1 | EMBEDDING THE LIBEV CODE INTO YOUR OWN PROGRAMS |
1 | EMBEDDING THE LIBEV CODE INTO YOUR OWN PROGRAMS |
| 2 | |
2 | |
| 3 | Instead of building the libev library you cna also include the code |
3 | Instead of building the libev library you can also include the code |
| 4 | as-is into your programs. To update, you only have to copy a few files |
4 | as-is into your programs. To update, you only have to copy a few files |
| 5 | into your source tree. |
5 | into your source tree. |
| 6 | |
6 | |
| 7 | This is how it works: |
7 | This is how it works: |
| 8 | |
8 | |
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| 15 | #define EV_STANDALONE 1 |
15 | #define EV_STANDALONE 1 |
| 16 | #include "ev.c" |
16 | #include "ev.c" |
| 17 | |
17 | |
| 18 | This will automatically include ev.h, too, and should be done in a |
18 | This will automatically include ev.h, too, and should be done in a |
| 19 | single C source file only to provide the function implementations. To |
19 | single C source file only to provide the function implementations. To |
| 20 | use it, do the same for ev.h in all users: |
20 | use it, do the same for ev.h in all files wishing to use this API |
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21 | (best done by writing a wrapper around ev.h that you can include |
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22 | instead and where you can put other configuration options): |
| 21 | |
23 | |
| 22 | #define EV_STANDALONE 1 |
24 | #define EV_STANDALONE 1 |
| 23 | #include "ev.h" |
25 | #include "ev.h" |
| 24 | |
26 | |
| 25 | You need the following files in your source tree, or in a directory |
27 | You need the following files in your source tree, or in a directory |
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| 90 | If undefined or defined to be "1", libev will compile in support |
92 | If undefined or defined to be "1", libev will compile in support |
| 91 | for the select(2) backend. No attempt at autodetection will be |
93 | for the select(2) backend. No attempt at autodetection will be |
| 92 | done: if no other method takes over, select will be it. Otherwise |
94 | done: if no other method takes over, select will be it. Otherwise |
| 93 | the select backend will not be compiled in. |
95 | the select backend will not be compiled in. |
| 94 | |
96 | |
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97 | EV_SELECT_USE_WIN32_HANDLES |
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98 | |
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99 | When defined to 1, the select backend will assume that select |
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100 | doesn't understand file descriptors but wants osf handles on |
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101 | win32 (this is the case when the select to be used is the winsock |
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102 | select). This means that it will call _get_osfhandle on the fd to |
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103 | convert it to an OS handle. Should not be defined on non-win32 |
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104 | platforms. |
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105 | |
| 95 | EV_USE_POLL |
106 | EV_USE_POLL |
| 96 | |
107 | |
| 97 | If defined to be "1", libev will compile in support for the poll(2) |
108 | If defined to be "1", libev will compile in support for the poll(2) |
| 98 | backend. No attempt at autodetection will be done. poll usually |
109 | backend. No attempt at autodetection will be done. poll usually |
| 99 | performs worse than select, so its not enabled by default (it is |
110 | performs worse than select, so its not enabled by default (it is |
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| 124 | |
135 | |
| 125 | For example, the perl EV module uses this: |
136 | For example, the perl EV module uses this: |
| 126 | |
137 | |
| 127 | #define EV_COMMON \ |
138 | #define EV_COMMON \ |
| 128 | SV *self; /* contains this struct */ \ |
139 | SV *self; /* contains this struct */ \ |
| 129 | SV *cb_sv, *fh; |
140 | SV *cb_sv, *fh /* note no trailing ";" */ |
| 130 | |
141 | |
| 131 | EV_PROTOTYPES |
142 | EV_PROTOTYPES |
| 132 | |
143 | |
| 133 | If defined to be "0", then "ev.h" will not define any function |
144 | If defined to be "0", then "ev.h" will not define any function |
| 134 | prototypes, but still define all the structs and other |
145 | prototypes, but still define all the structs and other |
