diff options
Diffstat (limited to 'libxcb/src')
| -rw-r--r-- | libxcb/src/.gitignore | 2 | ||||
| -rw-r--r-- | libxcb/src/Makefile.am | 18 | ||||
| -rw-r--r-- | libxcb/src/c_client.py | 69 | ||||
| -rw-r--r-- | libxcb/src/xcb.h | 58 | ||||
| -rw-r--r-- | libxcb/src/xcb_conn.c | 36 | ||||
| -rw-r--r-- | libxcb/src/xcb_in.c | 290 | ||||
| -rw-r--r-- | libxcb/src/xcb_out.c | 18 | ||||
| -rw-r--r-- | libxcb/src/xcbext.h | 6 | ||||
| -rw-r--r-- | libxcb/src/xcbint.h | 17 |
9 files changed, 476 insertions, 38 deletions
diff --git a/libxcb/src/.gitignore b/libxcb/src/.gitignore index a402afe57..a2a901006 100644 --- a/libxcb/src/.gitignore +++ b/libxcb/src/.gitignore @@ -3,7 +3,9 @@ composite.* damage.* dpms.* dri2.* +dri3.* glx.* +present.* randr.* record.* render.* diff --git a/libxcb/src/Makefile.am b/libxcb/src/Makefile.am index 6b5a2c3c4..346ee03cc 100644 --- a/libxcb/src/Makefile.am +++ b/libxcb/src/Makefile.am @@ -56,6 +56,22 @@ libxcb_dri2_la_LIBADD = $(XCB_LIBS) nodist_libxcb_dri2_la_SOURCES = dri2.c dri2.h endif +EXTSOURCES += dri3.c +if BUILD_DRI3 +lib_LTLIBRARIES += libxcb-dri3.la +libxcb_dri3_la_LDFLAGS = -version-info 0:0:0 -no-undefined @lt_enable_auto_import@ +libxcb_dri3_la_LIBADD = $(XCB_LIBS) +nodist_libxcb_dri3_la_SOURCES = dri3.c dri3.h +endif + +EXTSOURCES += present.c +if BUILD_PRESENT +lib_LTLIBRARIES += libxcb-present.la +libxcb_present_la_LDFLAGS = -version-info 0:0:0 -no-undefined @lt_enable_auto_import@ +libxcb_present_la_LIBADD = $(XCB_LIBS) +nodist_libxcb_present_la_SOURCES = present.c present.h +endif + EXTSOURCES += glx.c if BUILD_GLX lib_LTLIBRARIES += libxcb-glx.la @@ -233,7 +249,7 @@ EXTRA_DIST = $(STATIC_MANS) BUILT_SOURCES = $(EXTSOURCES) $(BUILT_MANS) CLEANFILES = $(EXTSOURCES) $(EXTHEADERS) $(BUILT_MANS) -$(EXTSOURCES): c_client.py +$(EXTSOURCES): c_client.py $(XCBPROTO_XCBINCLUDEDIR)/$(@:.c=.xml) $(PYTHON) $(srcdir)/c_client.py -p $(XCBPROTO_XCBPYTHONDIR) $(XCBPROTO_XCBINCLUDEDIR)/$(@:.c=.xml) $(man_MANS): $(EXTSOURCES) diff --git a/libxcb/src/c_client.py b/libxcb/src/c_client.py index a6f8edd73..72800045e 100644 --- a/libxcb/src/c_client.py +++ b/libxcb/src/c_client.py @@ -303,6 +303,7 @@ def _c_type_setup(self, name, postfix): self.c_reply_name = _n(name + ('reply',)) self.c_reply_type = _t(name + ('reply',)) self.c_cookie_type = _t(name + ('cookie',)) + self.c_reply_fds_name = _n(name + ('reply_fds',)) self.need_aux = False self.need_serialize = False @@ -1835,7 +1836,7 @@ def c_union(self, name): _c_complex(self) _c_iterator(self, name) -def _c_request_helper(self, name, cookie_type, void, regular, aux=False): +def _c_request_helper(self, name, cookie_type, void, regular, aux=False, reply_fds=False): ''' Declares a request function. ''' @@ -1864,6 +1865,12 @@ def _c_request_helper(self, name, cookie_type, void, regular, aux=False): # What flag is passed to xcb_request func_flags = '0' if (void and regular) or (not void and not regular) else 'XCB_REQUEST_CHECKED' + if reply_fds: + if func_flags == '0': + func_flags = 'XCB_REQUEST_REPLY_FDS' + else: + func_flags = func_flags + '|XCB_REQUEST_REPLY_FDS' + # Global extension id variable or NULL for xproto func_ext_global = '&' + _ns.c_ext_global_name if _ns.is_ext else '0' @@ -2149,6 +2156,10 @@ def _c_request_helper(self, name, cookie_type, void, regular, aux=False): # no padding necessary - _serialize() keeps track of padding automatically _c(' ') + for field in param_fields: + if field.isfd: + _c(' xcb_send_fd(c, %s);', field.c_field_name) + _c(' xcb_ret.sequence = xcb_send_request(c, %s, xcb_parts + 2, &xcb_req);', func_flags) # free dyn. all. data, if any @@ -2252,6 +2263,51 @@ def _c_reply(self, name): _c('}') +def _c_reply_has_fds(self): + for field in self.fields: + if field.isfd: + return True + return False + +def _c_reply_fds(self, name): + ''' + Declares the function that returns fds related to the reply. + ''' + spacing1 = ' ' * (len(self.c_reply_type) - len('xcb_connection_t')) + spacing3 = ' ' * (len(self.c_reply_fds_name) + 2) + _h('') + _h('/**') + _h(' * Return the reply fds') + _h(' * @param c The connection') + _h(' * @param reply The reply') + _h(' *') + _h(' * Returns the array of reply fds of the request asked by') + _h(' * ') + _h(' * The returned value must be freed by the caller using free().') + _h(' */') + _c('') + _hc('') + _hc('/*****************************************************************************') + _hc(' **') + _hc(' ** int * %s', self.c_reply_fds_name) + _hc(' ** ') + _hc(' ** @param xcb_connection_t%s *c', spacing1) + _hc(' ** @param %s *reply', self.c_reply_type) + _hc(' ** @returns int *') + _hc(' **') + _hc(' *****************************************************************************/') + _hc(' ') + _hc('int *') + _hc('%s (xcb_connection_t%s *c /**< */,', self.c_reply_fds_name, spacing1) + _h('%s%s *reply /**< */);', spacing3, self.c_reply_type) + _c('%s%s *reply /**< */)', spacing3, self.c_reply_type) + _c('{') + + _c(' return xcb_get_reply_fds(c, reply, sizeof(%s) + 4 * reply->length);', self.c_reply_type) + + _c('}') + + def _c_opcode(name, opcode): ''' Declares the opcode define for requests, events, and errors. @@ -2812,14 +2868,17 @@ def c_request(self, name): # Reply structure definition _c_complex(self.reply) # Request prototypes - _c_request_helper(self, name, self.c_cookie_type, False, True) - _c_request_helper(self, name, self.c_cookie_type, False, False) + has_fds = _c_reply_has_fds(self.reply) + _c_request_helper(self, name, self.c_cookie_type, False, True, False, has_fds) + _c_request_helper(self, name, self.c_cookie_type, False, False, False, has_fds) if self.need_aux: - _c_request_helper(self, name, self.c_cookie_type, False, True, True) - _c_request_helper(self, name, self.c_cookie_type, False, False, True) + _c_request_helper(self, name, self.c_cookie_type, False, True, True, has_fds) + _c_request_helper(self, name, self.c_cookie_type, False, False, True, has_fds) # Reply accessors _c_accessors(self.reply, name + ('reply',), name) _c_reply(self, name) + if has_fds: + _c_reply_fds(self, name) else: # Request prototypes _c_request_helper(self, name, 'xcb_void_cookie_t', True, False) diff --git a/libxcb/src/xcb.h b/libxcb/src/xcb.h index 071413077..63864dc37 100644 --- a/libxcb/src/xcb.h +++ b/libxcb/src/xcb.h @@ -87,6 +87,9 @@ extern "C" { /** Connection closed because the server does not have a screen matching the display. */ #define XCB_CONN_CLOSED_INVALID_SCREEN 6 +/** Connection closed because some FD passing operation failed */ +#define XCB_CONN_CLOSED_FDPASSING_FAILED 7 + #define XCB_TYPE_PAD(T,I) (-(I) & (sizeof(T) > 4 ? 3 : sizeof(T) - 1)) /* Opaque structures */ @@ -138,23 +141,6 @@ typedef struct { } xcb_generic_event_t; /** - * @brief GE event - * - * An event as sent by the XGE extension. The length field specifies the - * number of 4-byte blocks trailing the struct. - */ -typedef struct { - uint8_t response_type; /**< Type of the response */ - uint8_t pad0; /**< Padding */ - uint16_t sequence; /**< Sequence number */ - uint32_t length; - uint16_t event_type; - uint16_t pad1; - uint32_t pad[5]; /**< Padding */ - uint32_t full_sequence; /**< full sequence */ -} xcb_ge_event_t; - -/** * @brief Generic error. * * A generic error structure. @@ -304,6 +290,39 @@ xcb_generic_event_t *xcb_poll_for_event(xcb_connection_t *c); */ xcb_generic_event_t *xcb_poll_for_queued_event(xcb_connection_t *c); +typedef struct xcb_special_event xcb_special_event_t; + +/** + * @brief Returns the next event from a special queue + */ +xcb_generic_event_t *xcb_poll_for_special_event(xcb_connection_t *c, + xcb_special_event_t *se); + +/** + * @brief Returns the next event from a special queue, blocking until one arrives + */ +xcb_generic_event_t *xcb_wait_for_special_event(xcb_connection_t *c, + xcb_special_event_t *se); +/** + * @typedef typedef struct xcb_extension_t xcb_extension_t + */ +typedef struct xcb_extension_t xcb_extension_t; /**< Opaque structure used as key for xcb_get_extension_data_t. */ + + +/** + * @brief Listen for a special event + */ +xcb_special_event_t *xcb_register_for_special_xge(xcb_connection_t *c, + xcb_extension_t *ext, + uint32_t eid, + uint32_t *stamp); + +/** + * @brief Stop listening for a special event + */ +void xcb_unregister_for_special_event(xcb_connection_t *c, + xcb_special_event_t *se); + /** * @brief Return the error for a request, or NULL if none can ever arrive. * @param c: The connection to the X server. @@ -342,11 +361,6 @@ void xcb_discard_reply(xcb_connection_t *c, unsigned int sequence); /* xcb_ext.c */ /** - * @typedef typedef struct xcb_extension_t xcb_extension_t - */ -typedef struct xcb_extension_t xcb_extension_t; /**< Opaque structure used as key for xcb_get_extension_data_t. */ - -/** * @brief Caches reply information from QueryExtension requests. * @param c: The connection. * @param ext: The extension data. diff --git a/libxcb/src/xcb_conn.c b/libxcb/src/xcb_conn.c index 7dd25d373..50e7fb604 100644 --- a/libxcb/src/xcb_conn.c +++ b/libxcb/src/xcb_conn.c @@ -214,9 +214,39 @@ static int write_vec(xcb_connection_t *c, struct iovec **vector, int *count) if (n > IOV_MAX) n = IOV_MAX; - n = writev(c->fd, *vector, n); - if(n < 0 && errno == EAGAIN) - return 1; +#if HAVE_SENDMSG + if (c->out.out_fd.nfd) { + char cmsgbuf[CMSG_SPACE(sizeof(int) * XCB_MAX_PASS_FD)]; + struct msghdr msg = { + .msg_name = NULL, + .msg_namelen = 0, + .msg_iov = *vector, + .msg_iovlen = n, + .msg_control = cmsgbuf, + .msg_controllen = CMSG_LEN(c->out.out_fd.nfd * sizeof (int)), + }; + int i; + struct cmsghdr *hdr = CMSG_FIRSTHDR(&msg); + + hdr->cmsg_len = msg.msg_controllen; + hdr->cmsg_level = SOL_SOCKET; + hdr->cmsg_type = SCM_RIGHTS; + memcpy(CMSG_DATA(hdr), c->out.out_fd.fd, c->out.out_fd.nfd * sizeof (int)); + + n = sendmsg(c->fd, &msg, 0); + if(n < 0 && errno == EAGAIN) + return 1; + for (i = 0; i < c->out.out_fd.nfd; i++) + close(c->out.out_fd.fd[i]); + c->out.out_fd.nfd = 0; + } else +#endif + { + n = writev(c->fd, *vector, n); + if(n < 0 && errno == EAGAIN) + return 1; + } + #endif /* _WIN32 */ if(n <= 0) diff --git a/libxcb/src/xcb_in.c b/libxcb/src/xcb_in.c index 8a7af920b..8c3a58cc3 100644 --- a/libxcb/src/xcb_in.c +++ b/libxcb/src/xcb_in.c @@ -60,6 +60,23 @@ struct event_list { struct event_list *next; }; +struct xcb_special_event { + + struct xcb_special_event *next; + + /* Match XGE events for the specific extension and event ID (the + * first 32 bit word after evtype) + */ + uint8_t extension; + uint32_t eid; + uint32_t *stamp; + + struct event_list *events; + struct event_list **events_tail; + + pthread_cond_t special_event_cond; +}; + struct reply_list { void *reply; struct reply_list *next; @@ -90,11 +107,66 @@ static void remove_finished_readers(reader_list **prev_reader, uint64_t complete } } +#if HAVE_SENDMSG +static int read_fds(xcb_connection_t *c, int *fds, int nfd) +{ + int *ifds = &c->in.in_fd.fd[c->in.in_fd.ifd]; + int infd = c->in.in_fd.nfd - c->in.in_fd.ifd; + + if (nfd > infd) + return 0; + memcpy(fds, ifds, nfd * sizeof (int)); + c->in.in_fd.ifd += nfd; + return 1; +} +#endif + +typedef struct xcb_ge_special_event_t { + uint8_t response_type; /**< */ + uint8_t extension; /**< */ + uint16_t sequence; /**< */ + uint32_t length; /**< */ + uint16_t evtype; /**< */ + uint8_t pad0[2]; /**< */ + uint32_t eid; /**< */ + uint8_t pad1[16]; /**< */ +} xcb_ge_special_event_t; + +static int event_special(xcb_connection_t *c, + struct event_list *event) +{ + struct xcb_special_event *special_event; + struct xcb_ge_special_event_t *ges = (void *) event->event; + + /* Special events are always XGE events */ + if ((ges->response_type & 0x7f) != XCB_XGE_EVENT) + return 0; + + for (special_event = c->in.special_events; + special_event; + special_event = special_event->next) + { + if (ges->extension == special_event->extension && + ges->eid == special_event->eid) + { + *special_event->events_tail = event; + special_event->events_tail = &event->next; + if (special_event->stamp) + ++(*special_event->stamp); + pthread_cond_signal(&special_event->special_event_cond); + return 1; + } + } + + return 0; +} + static int read_packet(xcb_connection_t *c) { xcb_generic_reply_t genrep; uint64_t length = 32; uint64_t eventlength = 0; /* length after first 32 bytes for GenericEvents */ + int nfd = 0; /* Number of file descriptors attached to the reply */ uint64_t bufsize; void *buf; pending_reply *pend = 0; @@ -164,13 +236,18 @@ static int read_packet(xcb_connection_t *c) genrep.length = p[2] * p[3] * 2; } length += genrep.length * 4; + + /* XXX a bit of a hack -- we "know" that all FD replys place + * the number of fds in the pad0 byte */ + if (pend && pend->flags & XCB_REQUEST_REPLY_FDS) + nfd = genrep.pad0; } /* XGE events may have sizes > 32 */ if ((genrep.response_type & 0x7f) == XCB_XGE_EVENT) eventlength = genrep.length * 4; - bufsize = length + eventlength + + bufsize = length + eventlength + nfd * sizeof(int) + (genrep.response_type == XCB_REPLY ? 0 : sizeof(uint32_t)); if (bufsize < INT32_MAX) buf = malloc((size_t) bufsize); @@ -198,6 +275,17 @@ static int read_packet(xcb_connection_t *c) } } +#if HAVE_SENDMSG + if (nfd) + { + if (!read_fds(c, (int *) &((char *) buf)[length], nfd)) + { + free(buf); + return 0; + } + } +#endif + if(pend && (pend->flags & XCB_REQUEST_DISCARD_REPLY)) { free(buf); @@ -237,9 +325,12 @@ static int read_packet(xcb_connection_t *c) } event->event = buf; event->next = 0; - *c->in.events_tail = event; - c->in.events_tail = &event->next; - pthread_cond_signal(&c->in.event_cond); + + if (!event_special(c, event)) { + *c->in.events_tail = event; + c->in.events_tail = &event->next; + pthread_cond_signal(&c->in.event_cond); + } return 1; /* I have something for you... */ } @@ -431,6 +522,11 @@ void *xcb_wait_for_reply(xcb_connection_t *c, unsigned int request, xcb_generic_ return ret; } +int *xcb_get_reply_fds(xcb_connection_t *c, void *reply, size_t reply_size) +{ + return (int *) (&((char *) reply)[reply_size]); +} + static void insert_pending_discard(xcb_connection_t *c, pending_reply **prev_next, uint64_t seq) { pending_reply *pend; @@ -577,6 +673,126 @@ xcb_generic_error_t *xcb_request_check(xcb_connection_t *c, xcb_void_cookie_t co return ret; } +static xcb_generic_event_t *get_special_event(xcb_connection_t *c, + xcb_special_event_t *se) +{ + xcb_generic_event_t *event = NULL; + struct event_list *events; + + if ((events = se->events) != NULL) { + event = events->event; + if (!(se->events = events->next)) + se->events_tail = &se->events; + free (events); + } + return event; +} + +xcb_generic_event_t *xcb_poll_for_special_event(xcb_connection_t *c, + xcb_special_event_t *se) +{ + xcb_generic_event_t *event; + + if(c->has_error) + return 0; + pthread_mutex_lock(&c->iolock); + event = get_special_event(c, se); + pthread_mutex_unlock(&c->iolock); + return event; +} + +xcb_generic_event_t *xcb_wait_for_special_event(xcb_connection_t *c, + xcb_special_event_t *se) +{ + xcb_generic_event_t *event; + + if(c->has_error) + return 0; + pthread_mutex_lock(&c->iolock); + + /* get_special_event returns 0 on empty list. */ + while(!(event = get_special_event(c, se))) + if(!_xcb_conn_wait(c, &se->special_event_cond, 0, 0)) + break; + + pthread_mutex_unlock(&c->iolock); + return event; +} + +xcb_special_event_t * +xcb_register_for_special_xge(xcb_connection_t *c, + xcb_extension_t *ext, + uint32_t eid, + uint32_t *stamp) +{ + xcb_special_event_t *se; + const xcb_query_extension_reply_t *ext_reply; + + if(c->has_error) + return NULL; + ext_reply = xcb_get_extension_data(c, ext); + if (!ext_reply) + return NULL; + pthread_mutex_lock(&c->iolock); + for (se = c->in.special_events; se; se = se->next) { + if (se->extension == ext_reply->major_opcode && + se->eid == eid) { + pthread_mutex_unlock(&c->iolock); + return NULL; + } + } + se = calloc(1, sizeof(xcb_special_event_t)); + if (!se) { + pthread_mutex_unlock(&c->iolock); + return NULL; + } + + se->extension = ext_reply->major_opcode; + se->eid = eid; + + se->events = NULL; + se->events_tail = &se->events; + se->stamp = stamp; + + pthread_cond_init(&se->special_event_cond, 0); + + se->next = c->in.special_events; + c->in.special_events = se; + pthread_mutex_unlock(&c->iolock); + return se; +} + +void +xcb_unregister_for_special_event(xcb_connection_t *c, + xcb_special_event_t *se) +{ + xcb_special_event_t *s, **prev; + struct event_list *events, *next; + + if (!se) + return; + + if (c->has_error) + return; + + pthread_mutex_lock(&c->iolock); + + for (prev = &c->in.special_events; (s = *prev) != NULL; prev = &(s->next)) { + if (s == se) { + *prev = se->next; + for (events = se->events; events; events = next) { + next = events->next; + free (events->event); + free (events); + } + pthread_cond_destroy(&se->special_event_cond); + free (se); + break; + } + } + pthread_mutex_unlock(&c->iolock); +} + /* Private interface */ int _xcb_in_init(_xcb_in *in) @@ -665,11 +881,73 @@ void _xcb_in_replies_done(xcb_connection_t *c) int _xcb_in_read(xcb_connection_t *c) { - int n = recv(c->fd, c->in.queue + c->in.queue_len, sizeof(c->in.queue) - c->in.queue_len, 0); - if(n > 0) + int n; + +#if HAVE_SENDMSG + struct iovec iov = { + .iov_base = c->in.queue + c->in.queue_len, + .iov_len = sizeof(c->in.queue) - c->in.queue_len, + }; + char cmsgbuf[CMSG_SPACE(sizeof(int) * XCB_MAX_PASS_FD)]; + struct msghdr msg = { + .msg_name = NULL, + .msg_namelen = 0, + .msg_iov = &iov, + .msg_iovlen = 1, + .msg_control = cmsgbuf, + .msg_controllen = CMSG_SPACE(sizeof(int) * (XCB_MAX_PASS_FD - c->in.in_fd.nfd)), + }; + n = recvmsg(c->fd, &msg, 0); + + /* Check for truncation errors. Only MSG_CTRUNC is + * probably possible here, which would indicate that + * the sender tried to transmit more than XCB_MAX_PASS_FD + * file descriptors. + */ + if (msg.msg_flags & (MSG_TRUNC|MSG_CTRUNC)) { + _xcb_conn_shutdown(c, XCB_CONN_CLOSED_FDPASSING_FAILED); + return 0; + } +#else + n = recv(c->fd, c->in.queue + c->in.queue_len, sizeof(c->in.queue) - c->in.queue_len, 0); +#endif + if(n > 0) { +#if HAVE_SENDMSG + struct cmsghdr *hdr; + + for (hdr = CMSG_FIRSTHDR(&msg); hdr; hdr = CMSG_NXTHDR(&msg, hdr)) { + if (hdr->cmsg_level == SOL_SOCKET && hdr->cmsg_type == SCM_RIGHTS) { + int nfd = (hdr->cmsg_len - CMSG_LEN(0)) / sizeof (int); + memcpy(&c->in.in_fd.fd[c->in.in_fd.nfd], CMSG_DATA(hdr), nfd * sizeof (int)); + c->in.in_fd.nfd += nfd; + } + } +#endif c->in.queue_len += n; + } while(read_packet(c)) /* empty */; +#if HAVE_SENDMSG + if (c->in.in_fd.nfd) { + c->in.in_fd.nfd -= c->in.in_fd.ifd; + memmove(&c->in.in_fd.fd[0], + &c->in.in_fd.fd[c->in.in_fd.ifd], + c->in.in_fd.nfd * sizeof (int)); + c->in.in_fd.ifd = 0; + + /* If we have any left-over file descriptors after emptying + * the input buffer, then the server sent some that we weren't + * expecting. Close them and mark the connection as broken; + */ + if (c->in.queue_len == 0 && c->in.in_fd.nfd != 0) { + int i; + for (i = 0; i < c->in.in_fd.nfd; i++) + close(c->in.in_fd.fd[i]); + _xcb_conn_shutdown(c, XCB_CONN_CLOSED_FDPASSING_FAILED); + return 0; + } + } +#endif #ifndef _WIN32 if((n > 0) || (n < 0 && errno == EAGAIN)) #else diff --git a/libxcb/src/xcb_out.c b/libxcb/src/xcb_out.c index 429fa99d3..1a3aca515 100644 --- a/libxcb/src/xcb_out.c +++ b/libxcb/src/xcb_out.c @@ -263,6 +263,24 @@ unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vect return request; } +void +xcb_send_fd(xcb_connection_t *c, int fd) +{ +#if HAVE_SENDMSG + if (c->has_error) + return; + pthread_mutex_lock(&c->iolock); + while (c->out.out_fd.nfd == XCB_MAX_PASS_FD) { + _xcb_out_flush_to(c, c->out.request); + if (c->has_error) + break; + } + if (!c->has_error) + c->out.out_fd.fd[c->out.out_fd.nfd++] = fd; + pthread_mutex_unlock(&c->iolock); +#endif +} + int xcb_take_socket(xcb_connection_t *c, void (*return_socket)(void *closure), void *closure, int flags, uint64_t *sent) { int ret; diff --git a/libxcb/src/xcbext.h b/libxcb/src/xcbext.h index 4e1f2f73d..1eb1be77f 100644 --- a/libxcb/src/xcbext.h +++ b/libxcb/src/xcbext.h @@ -54,11 +54,14 @@ 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 @@ -89,6 +92,7 @@ int xcb_writev(xcb_connection_t *c, struct iovec *vector, int count, uint64_t re 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); +int *xcb_get_reply_fds(xcb_connection_t *c, void *reply, size_t replylen); /* xcb_util.c */ diff --git a/libxcb/src/xcbint.h b/libxcb/src/xcbint.h index 7f9ab2838..5c904fbb7 100644 --- a/libxcb/src/xcbint.h +++ b/libxcb/src/xcbint.h @@ -81,6 +81,16 @@ void *_xcb_map_remove(_xcb_map *q, unsigned int key); typedef void (*xcb_return_socket_func_t)(void *closure); +#if HAVE_SENDMSG +#define XCB_MAX_PASS_FD 16 + +typedef struct _xcb_fd { + int fd[XCB_MAX_PASS_FD]; + int nfd; + int ifd; +} _xcb_fd; +#endif + typedef struct _xcb_out { pthread_cond_t cond; int writing; @@ -101,6 +111,9 @@ typedef struct _xcb_out { xcb_big_requests_enable_cookie_t cookie; uint32_t value; } maximum_request_length; +#if HAVE_SENDMSG + _xcb_fd out_fd; +#endif } _xcb_out; int _xcb_out_init(_xcb_out *out); @@ -133,6 +146,10 @@ typedef struct _xcb_in { struct pending_reply *pending_replies; struct pending_reply **pending_replies_tail; +#if HAVE_SENDMSG + _xcb_fd in_fd; +#endif + struct xcb_special_event *special_events; } _xcb_in; int _xcb_in_init(_xcb_in *in); |