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Refine stream_select() to work with streams that have data in their read

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buffers.
When selecting for read, the streams are examined; if any of them have
pending read data, no actual select(2) call is performed; instead the
streams with buffered data are returned; just like a regular select
call.
Prevent erroneous warning in stream_select when obtaining the fd.
This commit is contained in:
Wez Furlong 2002-10-21 22:54:37 +00:00
parent 102c945501
commit dabf1053cd
3 changed files with 83 additions and 8 deletions
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main/php_streams.h
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@ -455,7 +455,8 @@ PHPAPI php_stream *_php_stream_fopen_temporary_file(const char *dir, const char
/* try really, really hard to make sure the cast happens (socketpair) */
#define PHP_STREAM_CAST_TRY_HARD 0x80000000
#define PHP_STREAM_CAST_RELEASE 0x40000000 /* stream becomes invalid on success */
#define PHP_STREAM_CAST_MASK (PHP_STREAM_CAST_TRY_HARD | PHP_STREAM_CAST_RELEASE)
#define PHP_STREAM_CAST_INTERNAL 0x20000000 /* stream cast for internal use */
#define PHP_STREAM_CAST_MASK (PHP_STREAM_CAST_TRY_HARD | PHP_STREAM_CAST_RELEASE | PHP_STREAM_CAST_INTERNAL)
PHPAPI int _php_stream_cast(php_stream *stream, int castas, void **ret, int show_err TSRMLS_DC);
/* use this to check if a stream can be cast into another form */
#define php_stream_can_cast(stream, as) _php_stream_cast((stream), (as), NULL, 0 TSRMLS_CC)