Mercurial > hg > xemacs-beta
comparison src/events.h @ 371:cc15677e0335 r21-2b1
Import from CVS: tag r21-2b1
| author | cvs |
|---|---|
| date | Mon, 13 Aug 2007 11:03:08 +0200 |
| parents | a4f53d9b3154 |
| children | 8626e4521993 |
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| 370:bd866891f083 | 371:cc15677e0335 |
|---|---|
| 271 Since there are many possible processes/event loop combinations, the event code | 271 Since there are many possible processes/event loop combinations, the event code |
| 272 is responsible for creating an appropriare lstream type. The process | 272 is responsible for creating an appropriare lstream type. The process |
| 273 implementation does not care about that implementation. | 273 implementation does not care about that implementation. |
| 274 | 274 |
| 275 The Create stream pair function is passed two void* values, which identify | 275 The Create stream pair function is passed two void* values, which identify |
| 276 process-dependent 'handles'. The process implementation uses these handles | 276 process-dependant 'handles'. The process implementation uses these handles |
| 277 to communicate with child processes. The function must be prepared to receive | 277 to communicate with child processes. The function must be prepared to receive |
| 278 handle types of any process implementation. Since there only one process | 278 handle types of any process implementation. Since there only one process |
| 279 implementation exists in a particular XEmacs configuration, preprocessing | 279 implementation exists in a particular XEmacs configuration, preprocessing |
| 280 is a mean of compiling in the support for the code which deals with particular | 280 is a mean of compiling in the support for the code which deals with particular |
| 281 handle types. | 281 handle types. |
| 291 | 291 |
| 292 The handle given may have special denying value, in which case the | 292 The handle given may have special denying value, in which case the |
| 293 corresponding lstream should not be created. | 293 corresponding lstream should not be created. |
| 294 | 294 |
| 295 The return value of the function is a unique stream identifier. It is used | 295 The return value of the function is a unique stream identifier. It is used |
| 296 by processes implementation, in its platform-independent part. There is | 296 by processes implementation, in its platform-independant part. There is |
| 297 the get_process_from_usid function, which returns process object given its | 297 the get_process_from_usid function, which returns process object given its |
| 298 USID. The event stream is responsible for converting its internal handle | 298 USID. The event stream is responsible for converting its internal handle |
| 299 type into USID. | 299 type into USID. |
| 300 | 300 |
| 301 Example is the TTY event stream. When a file descriptor signals input, the | 301 Example is the TTY event stream. When a file descriptor signals input, the |