struct php_stream_ops

typedef struct _php_stream_ops {
 /* all streams MUST implement these operations */
 size_t (*write)(php_stream *stream, const char *buf, size_t count TSRMLS_DC);
 size_t (*read)(php_stream *stream, char *buf, size_t count TSRMLS_DC);
 int (*close)(php_stream *stream, int close_handle TSRMLS_DC);
 int (*flush)(php_stream *stream TSRMLS_DC);
 
 const char *label; /* name describing this class of stream */
 
 /* these operations are optional, and may be set to NULL if the stream does not
  * support a particular operation */
int (*seek)(php_stream *stream, off_t offset, int whence TSRMLS_DC);
char *(*gets)(php_stream *stream, char *buf, size_t size TSRMLS_DC);
int (*cast)(php_stream *stream, int castas, void **ret TSRMLS_DC);
int (*stat)(php_stream *stream, php_stream_statbuf *ssb TSRMLS_DC);
} php_stream_ops;