X-Git-Url: http://git.demorecorder.com/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fxcbext.h;h=1eb1be77fd85968ef6995e923ea55dd858cab346;hb=cca607409068ad0948e7283fb8d0465cabc51686;hp=4824660547f767c9091d3c2605ebec70af1342ef;hpb=a3bd6f4760b5b3f5f360a690920839646e2b9d06;p=free-sw%2Fxcb%2Flibxcb diff --git a/src/xcbext.h b/src/xcbext.h index 4824660..1eb1be7 100644 --- a/src/xcbext.h +++ b/src/xcbext.h @@ -54,26 +54,51 @@ typedef struct { enum xcb_send_request_flags_t { XCB_REQUEST_CHECKED = 1 << 0, XCB_REQUEST_RAW = 1 << 1, - XCB_REQUEST_DISCARD_REPLY = 1 << 2 + XCB_REQUEST_DISCARD_REPLY = 1 << 2, + XCB_REQUEST_REPLY_FDS = 1 << 3 }; unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vector, const xcb_protocol_request_t *request); +void xcb_send_fd(xcb_connection_t *c, int fd); + +/* xcb_take_socket allows external code to ask XCB for permission to + * take over the write side of the socket and send raw data with + * xcb_writev. xcb_take_socket provides the sequence number of the last + * request XCB sent. The caller of xcb_take_socket must supply a + * callback which XCB can call when it wants the write side of the + * socket back to make a request. This callback synchronizes with the + * external socket owner and flushes any output queues if appropriate. + * The callback might be called from different threads at the same time. + * If you are sending requests which won't cause a reply, please note the + * comment for xcb_writev which explains some sequence number wrap issues. + * */ +int xcb_take_socket(xcb_connection_t *c, void (*return_socket)(void *closure), void *closure, int flags, uint64_t *sent); + +/* You must own the write-side of the socket (you've called + * xcb_take_socket, and haven't returned from return_socket yet) to call + * xcb_writev. Also, the iovec must have at least 1 byte of data in it. + * You have to make sure that xcb can detect sequence number wraps correctly. + * This means that the first request you send after xcb_take_socket must cause a + * reply (e.g. just insert a GetInputFocus request). After every (1 << 16) - 1 + * requests without a reply, you have to insert a request which will cause a + * reply. You can again use GetInputFocus for this. You do not have to wait for + * any of the GetInputFocus replies, but can instead handle them via + * xcb_discard_reply(). */ +int xcb_writev(xcb_connection_t *c, struct iovec *vector, int count, uint64_t requests); + /* xcb_in.c */ void *xcb_wait_for_reply(xcb_connection_t *c, unsigned int request, xcb_generic_error_t **e); int xcb_poll_for_reply(xcb_connection_t *c, unsigned int request, void **reply, xcb_generic_error_t **error); - - -/* xcb_xid.c */ - -uint32_t xcb_generate_id(xcb_connection_t *c); +int *xcb_get_reply_fds(xcb_connection_t *c, void *reply, size_t replylen); /* xcb_util.c */ int xcb_popcount(uint32_t mask); +int xcb_sumof(uint8_t *list, int len); #ifdef __cplusplus }