oRTP: src/utils.h Source File

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# src/utils.h

    00001 /***************************************************************************
    00002  *            utils.h
    00003  *
    00004  *  Wed Feb 23 14:15:36 2005
    00005  *  Copyright  2005  Simon Morlat
    00006  *  Email simon.morlat@linphone.org
    00007  ****************************************************************************/
    00008 /*
    00009   The oRTP library is an RTP (Realtime Transport Protocol - rfc3550) stack.
    00010   Copyright (C) 2001  Simon MORLAT simon.morlat@linphone.org
    00011
    00012   This library is free software; you can redistribute it and/or
    00013   modify it under the terms of the GNU Lesser General Public
    00014   License as published by the Free Software Foundation; either
    00015   version 2.1 of the License, or (at your option) any later version.
    00016
    00017   This library is distributed in the hope that it will be useful,
    00018   but WITHOUT ANY WARRANTY; without even the implied warranty of
    00019   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00020   Lesser General Public License for more details.
    00021
    00022   You should have received a copy of the GNU Lesser General Public
    00023   License along with this library; if not, write to the Free Software
    00024   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    00025 */
    00026
    00027 #ifndef UTILS_H
    00028 #define UTILS_H
    00029
    00030 #include "ortp/event.h"
    00031
    00032 struct _OList {
    00033         struct _OList *next;
    00034         struct _OList *prev;
    00035         void *data;
    00036 };
    00037
    00038 typedef struct _OList OList;
    00039
    00040
    00041 #define o_list_next(elem) ((elem)->next)
    00042
    00043 OList * o_list_append(OList *elem, void * data);
    00044 OList * o_list_remove(OList *list, void *data);
    00045 OList * o_list_free(OList *elem);
    00046
    00047 #ifndef MIN
    00048 #define MIN(a,b) (((a)>(b)) ? (b) : (a))
    00049 #endif
    00050 #ifndef MAX
    00051 #define MAX(a,b) (((a)>(b)) ? (a) : (b))
    00052 #endif
    00053
    00054 #define return_if_fail(expr) if (!(expr)) {printf("%s:%i- assertion"#expr "failed\n",__FILE__,__LINE__); return;}
    00055 #define return_val_if_fail(expr,ret) if (!(expr)) {printf("%s:%i- assertion" #expr "failed\n",__FILE__,__LINE__); return (ret);}
    00056
    00057
    00058 #define INT_TO_POINTER(truc)    ((long)(long)(truc))
    00059 #define POINTER_TO_INT(truc)    ((int)(long)(truc))
    00060
    00061 typedef struct _dwsplit_t{
    00062 #ifdef ORTP_BIGENDIAN
    00063         uint16_t hi;
    00064         uint16_t lo;
    00065 #else
    00066         uint16_t lo;
    00067         uint16_t hi;
    00068 #endif
    00069 } dwsplit_t;
    00070
    00071 typedef union{
    00072         dwsplit_t split;
    00073         uint32_t one;
    00074 } poly32_t;
    00075
    00076 #ifdef ORTP_BIGENDIAN
    00077 #define hton24(x) (x)
    00078 #else
    00079 #define hton24(x) ((( (x) & 0x00ff0000) >>16) | (( (x) & 0x000000ff) <<16) | ( (x) & 0x0000ff00) )
    00080 #endif
    00081 #define ntoh24(x) hton24(x)
    00082
    00083 #if defined(WIN32) || defined(_WIN32_WCE)
    00084 #define is_would_block_error(errnum)    (errnum==WSAEWOULDBLOCK)
    00085 #else
    00086 #define is_would_block_error(errnum)    (errnum==EWOULDBLOCK || errnum==EAGAIN)
    00087 #endif
    00088
    00089 void ortp_ev_queue_put(OrtpEvQueue *q, OrtpEvent *ev);
    00090
    00091 #endif