moved IOMultiplexer into AuthService && SessionService

[ChatPrototype.git] / AuthService / src / IOHandler.h

diff --git a/AuthService/src/IOHandler.h b/AuthService/src/IOHandler.h
new file mode 100644 (file)
index 0000000..eb32cdc
--- /dev/null
+++ b/AuthService/src/IOHandler.h
@@ -0,0 +1,141 @@
+/* IOHandler.h - IOMultiplexer
+ * Copyright (C) 2012  Philipp Kreil (pk910)
+ * 
+ * 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 3 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, see <http://www.gnu.org/licenses/>. 
+ */
+#ifndef _IOHandler_h
+#define _IOHandler_h
+#include <stddef.h>
+#include <sys/time.h> /* struct timeval */
+
+#define IO_READ_BUFLEN 1024
+#define IO_MAX_TIMEOUT 10
+#define IO_LINE_LEN    1024
+
+struct timeval;
+struct IODescriptor;
+struct IOEvent;
+struct IOSSLNode;
+
+enum IOLogType {
+    IOLOG_DEBUG,
+    IOLOG_WARNING,
+    IOLOG_ERROR,
+    IOLOG_FATAL
+};
+
+#define IOHANDLER_CALLBACK(NAME) void NAME(struct IOEvent *event)
+typedef IOHANDLER_CALLBACK(iohandler_callback);
+
+#define IOHANDLER_LOG_BACKEND(NAME) void NAME(enum IOLogType type, const char *line)
+typedef IOHANDLER_LOG_BACKEND(iohandler_log_callback);
+
+extern iohandler_log_callback *iolog_backend;
+
+enum IOType {
+    IOTYPE_UNKNOWN, /* ignore descriptor (uninitialized) */
+    IOTYPE_SERVER, /* server socket */
+    IOTYPE_CLIENT, /* client socket */
+    IOTYPE_STDIN, /* stdin */
+    IOTYPE_TIMER /* timer */
+};
+
+enum IOStatus { 
+    IO_CLOSED, /* descriptor is dead (socket waiting for removal or timer) */
+    IO_LISTENING, /* descriptor is waiting for connections (server socket) */
+    IO_CONNECTING, /* descriptor is waiting for connection approval (connecting client socket) */
+    IO_CONNECTED, /* descriptor is connected (connected client socket) */
+    IO_SSLWAIT /* waiting for SSL backend (e.g. handshake) */
+};
+
+enum IOEventType {
+    IOEVENT_IGNORE,
+    IOEVENT_READABLE, /* socket is readable - not read anything yet, could also be disconnect notification */
+    IOEVENT_RECV, /* client socket received something (recv_str valid) */
+    IOEVENT_CONNECTED, /* client socket connected successful */
+    IOEVENT_NOTCONNECTED, /* client socket could not connect (errid valid) */
+    IOEVENT_CLOSED, /* client socket lost connection (errid valid) */
+    IOEVENT_ACCEPT, /* server socket accepted new connection (accept_fd valid) */
+    IOEVENT_SSLACCEPT, /* SSL server socket accepted new connection (accept_iofd valid) */
+    IOEVENT_TIMEOUT, /* timer timed out */
+    IOEVENT_SSLFAILED /* failed to initialize SSL session */
+};
+
+struct IOBuffer {
+    char *buffer;
+    size_t bufpos, buflen;
+};
+
+struct IODescriptor {
+    int fd;
+    enum IOType type;
+    enum IOStatus state;
+    struct timeval timeout;
+    int constant_timeout;
+    iohandler_callback *callback;
+    struct IOBuffer readbuf;
+    struct IOBuffer writebuf;
+    void *data;
+    int read_lines : 1;
+    int ssl : 1;
+    int ssl_server_hs : 1;
+    int ssl_active : 1;
+    int ssl_hs_read : 1;
+    int ssl_hs_write : 1;
+    struct IOSSLNode *sslnode;
+    
+    struct IODescriptor *next, *prev;
+};
+
+struct IOEvent {
+    enum IOEventType type;
+    struct IODescriptor *iofd;
+    union {
+        char *recv_str;
+        int accept_fd;
+        int errid;
+        struct IODescriptor *accept_iofd;
+    } data;
+};
+
+#define IOHANDLER_LISTEN_IPV4 0x01
+#define IOHANDLER_LISTEN_IPV6 0x02 /* overrides IOHANDLER_LISTEN_IPV4 */
+
+#define IOHANDLER_CONNECT_IPV4 0x01
+#define IOHANDLER_CONNECT_IPV6 0x02 /* overrides IOHANDLER_CONNECT_IPV4 */
+
+#define IOHANDLER_SETTING_HIGH_PRECISION_TIMER 0x01
+
+void iohandler_set(int setting, int value);
+
+struct IODescriptor *iohandler_add(int sockfd, enum IOType type, struct timeval *timeout, iohandler_callback *callback);
+struct IODescriptor *iohandler_timer(struct timeval timeout, iohandler_callback *callback);
+struct IODescriptor *iohandler_constant_timer(int msec, iohandler_callback *callback);
+struct IODescriptor *iohandler_connect(const char *hostname, unsigned int port, int ssl, const char *bind, iohandler_callback *callback);
+struct IODescriptor *iohandler_connect_flags(const char *hostname, unsigned int port, int ssl, const char *bindhost, iohandler_callback *callback, int flags);
+struct IODescriptor *iohandler_listen(const char *hostname, unsigned int port, iohandler_callback *callback);
+struct IODescriptor *iohandler_listen_flags(const char *hostname, unsigned int port, iohandler_callback *callback, int flags);
+struct IODescriptor *iohandler_listen_ssl(const char *hostname, unsigned int port, const char *certfile, const char *keyfile, iohandler_callback *callback);
+struct IODescriptor *iohandler_listen_ssl_flags(const char *hostname, unsigned int port, const char *certfile, const char *keyfile, iohandler_callback *callback, int flags);
+void iohandler_write(struct IODescriptor *iofd, const char *line);
+void iohandler_send(struct IODescriptor *iofd, const char *data, size_t datalen);
+void iohandler_printf(struct IODescriptor *iofd, const char *text, ...);
+void iohandler_close(struct IODescriptor *iofd);
+void iohandler_update(struct IODescriptor *iofd);
+void iohandler_set_timeout(struct IODescriptor *iofd, struct timeval *timeout);
+
+void iohandler_poll();
+void iohandler_poll_timeout(struct timeval timeout);
+
+#endif