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Diffstat (limited to 'src/tcp_connect.h')
-rw-r--r-- | src/tcp_connect.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/tcp_connect.h b/src/tcp_connect.h new file mode 100644 index 000000000..bdbe85c14 --- /dev/null +++ b/src/tcp_connect.h @@ -0,0 +1,96 @@ +/* + * Copyright (C) 2003-2011 The Music Player Daemon Project + * http://www.musicpd.org + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef MPD_TCP_CONNECT_H +#define MPD_TCP_CONNECT_H + +#include <glib.h> + +struct sockaddr; + +struct tcp_connect_handler { + /** + * The connection was established successfully. + * + * @param fd a file descriptor that must be closed with + * close_socket() when finished + */ + void (*success)(int fd, void *ctx); + + /** + * An error has occurred. The method is responsible for + * freeing the GError. + */ + void (*error)(GError *error, void *ctx); + + /** + * The connection could not be established in the specified + * time span. + */ + void (*timeout)(void *ctx); + + /** + * The operation was canceled before a result was available. + */ + void (*canceled)(void *ctx); +}; + +struct tcp_connect; + +/** + * Establish a TCP connection to the specified address. + * + * Note that the result may be available before this function returns. + * + * The caller must free this object with tcp_connect_free(). + * + * @param timeout_ms time out after this number of milliseconds; 0 + * means no timeout + * @param handle_r a handle that can be used to cancel the operation; + * the caller must initialize it to NULL + */ +void +tcp_connect_address(const struct sockaddr *address, size_t address_length, + unsigned timeout_ms, + const struct tcp_connect_handler *handler, void *ctx, + struct tcp_connect **handle_r); + +/** + * Cancel the operation. It is possible that the result is delivered + * before the operation has been canceled; in that case, the + * canceled() handler method will not be invoked. + * + * Even after calling this function, tcp_connect_free() must still be + * called to free memory. + */ +void +tcp_connect_cancel(struct tcp_connect *handle); + +/** + * Free memory used by this object. + * + * This function is not thread safe. It must not be called while + * other threads are still working with it. If no callback has been + * invoked so far, then you must call tcp_connect_cancel() to release + * I/O thread resources, before calling this function. + */ +void +tcp_connect_free(struct tcp_connect *handle); + +#endif |