X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=para.h;h=e4e9a53dd96c740e2178b9d439cf8ed6e790ffb3;hp=ed2c0bccae649368e1530680dac6e90373127674;hb=ddd7cd853044105f329a2c70cce2d8f1470f559e;hpb=ae0e4594c6a0312c5b4b4c0bde86f9c12253d11b;ds=inline diff --git a/para.h b/para.h index ed2c0bcc..e4e9a53d 100644 --- a/para.h +++ b/para.h @@ -1,19 +1,7 @@ /* - * Copyright (C) 1997-2007 Andre Noll + * Copyright (C) 1997-2009 Andre Noll * - * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. + * Licensed under the GPL v2. For licencing details see COPYING. */ /** \file para.h global paraslash definitions */ @@ -36,77 +24,94 @@ #include #include /* needed by create_pf_socket */ #include +#include #include "gcc-compat.h" /** used in various contexts */ #define MAXLINE 255 -/** compute the minimum of \a a and \a b */ -#define PARA_MIN(a,b) ((a) < (b) ? (a) : (b)) -/** compute the maximum of \a a and \a b */ -#define PARA_MAX(a,b) ((a) > (b) ? (a) : (b)) -/** compute the absolute value of \a a */ -#define PARA_ABS(a) ((a) > 0 ? (a) : -(a)) - -/** debug loglevel, gets really noisy */ -#define DEBUG 1 -/** still noisy, but won't fill your disk */ -#define INFO 2 -/** normal, but significant event */ -#define NOTICE 3 -/** unexpected event that can be handled */ -#define WARNING 4 -/** unhandled error condition */ -#define ERROR 5 -/** system might be unreliable */ -#define CRIT 6 -/** last message before exit */ -#define EMERG 7 - -/** log messages with lower proirity than that will not be compiled in*/ +/** Compute the minimum of \a x and \a y. */ +#define PARA_MIN(x, y) ({ \ + typeof(x) _min1 = (x); \ + typeof(y) _min2 = (y); \ + (void) (&_min1 == &_min2); \ + _min1 < _min2 ? _min1 : _min2; }) + +/** Compute the maximum of \a x and \a y. */ +#define PARA_MAX(x, y) ({ \ + typeof(x) _max1 = (x); \ + typeof(y) _max2 = (y); \ + (void) (&_max1 == &_max2); \ + _max1 < _max2 ? _max2 : _max1; }) + +/** Compute the absolute value of \a x. */ +#define PARA_ABS(x) ({ \ + typeof(x) _x = (x); \ + _x > 0? _x : -_x; }) + +/** Debug loglevel, gets really noisy. */ +#define LL_DEBUG 0 +/** Still noisy, but won't fill your disk. */ +#define LL_INFO 1 +/** Normal, but significant event. */ +#define LL_NOTICE 2 +/** Unexpected event that can be handled. */ +#define LL_WARNING 3 +/** Unhandled error condition. */ +#define LL_ERROR 4 +/** System might be unreliable. */ +#define LL_CRIT 5 +/** Last message before exit. */ +#define LL_EMERG 6 +/** Number of all loglevels. */ +#define NUM_LOGLEVELS 7 + +/** Log messages with lower priority than that will not be compiled in. */ #define COMPILE_TIME_LOGLEVEL 0 -#if DEBUG > COMPILE_TIME_LOGLEVEL -#define PARA_DEBUG_LOG(f,...) para_log(DEBUG, "%s: " f, __FUNCTION__, __VA_ARGS__) +/** \cond */ +#if LL_DEBUG >= COMPILE_TIME_LOGLEVEL +#define PARA_DEBUG_LOG(f,...) para_log(LL_DEBUG, "%s: " f, __FUNCTION__, ## __VA_ARGS__) #else #define PARA_DEBUG_LOG(...) do {;} while (0) #endif -#if INFO > COMPILE_TIME_LOGLEVEL -#define PARA_INFO_LOG(f,...) para_log(INFO, "%s: " f, __FUNCTION__, __VA_ARGS__) +#if LL_INFO >= COMPILE_TIME_LOGLEVEL +#define PARA_INFO_LOG(f,...) para_log(LL_INFO, "%s: " f, __FUNCTION__, ## __VA_ARGS__) #else #define PARA_INFO_LOG(...) do {;} while (0) #endif -#if NOTICE > COMPILE_TIME_LOGLEVEL -#define PARA_NOTICE_LOG(f,...) para_log(NOTICE, "%s: " f, __FUNCTION__, __VA_ARGS__) +#if LL_NOTICE >= COMPILE_TIME_LOGLEVEL +#define PARA_NOTICE_LOG(f,...) para_log(LL_NOTICE, "%s: " f, __FUNCTION__, ## __VA_ARGS__) #else #define PARA_NOTICE_LOG(...) do {;} while (0) #endif -#if WARNING > COMPILE_TIME_LOGLEVEL -#define PARA_WARNING_LOG(f,...) para_log(WARNING, "%s: " f, __FUNCTION__, __VA_ARGS__) +#if LL_WARNING >= COMPILE_TIME_LOGLEVEL +#define PARA_WARNING_LOG(f,...) para_log(LL_WARNING, "%s: " f, __FUNCTION__, ## __VA_ARGS__) #else #define PARA_WARNING_LOG(...) do {;} while (0) #endif -#if ERROR > COMPILE_TIME_LOGLEVEL -#define PARA_ERROR_LOG(f,...) para_log(ERROR, "%s: " f, __FUNCTION__, __VA_ARGS__) +#if LL_ERROR >= COMPILE_TIME_LOGLEVEL +#define PARA_ERROR_LOG(f,...) para_log(LL_ERROR, "%s: " f, __FUNCTION__, ## __VA_ARGS__) #else #define PARA_ERROR_LOG(...) do {;} while (0) #endif -#if CRIT > COMPILE_TIME_LOGLEVEL -#define PARA_CRIT_LOG(f,...) para_log(CRIT, "%s: " f, __FUNCTION__, __VA_ARGS__) +#if LL_CRIT >= COMPILE_TIME_LOGLEVEL +#define PARA_CRIT_LOG(f,...) para_log(LL_CRIT, "%s: " f, __FUNCTION__, ## __VA_ARGS__) #else #define PARA_CRIT_LOG(...) do {;} while (0) #endif -#if EMERG > COMPILE_TIME_LOGLEVEL -#define PARA_EMERG_LOG(f,...) para_log(EMERG, "%s: " f, __FUNCTION__, __VA_ARGS__) +#if LL_EMERG >= COMPILE_TIME_LOGLEVEL +#define PARA_EMERG_LOG(f,...) para_log(LL_EMERG, "%s: " f, __FUNCTION__, ## __VA_ARGS__) #else #define PARA_EMERG_LOG(...) #endif +/** \endcond */ /** * define a standard log function that always writes to stderr @@ -127,8 +132,8 @@ } /** version text used by various commands if -V switch was given */ -#define VERSION_TEXT(prefix) "para_" prefix " " PACKAGE_VERSION "\n" \ - "Copyright (C) 2007 Andre Noll\n" \ +#define VERSION_TEXT(prefix) "para_" prefix " " PACKAGE_VERSION " (" CODENAME ")" "\n" \ + "Copyright (C) 2009 Andre Noll\n" \ "This is free software with ABSOLUTELY NO WARRANTY." \ " See COPYING for details.\n" \ "Written by Andre Noll.\n" \ @@ -151,10 +156,6 @@ /** sent by para_client, followed by the decrypted challenge number */ #define CHALLENGE_RESPONSE_MSG "challenge_response:" -/* gui_common */ -int para_open_audiod_pipe(char *); -int read_audiod_pipe(int, void (*)(char *)); - /* exec */ int para_exec_cmdline_pid(pid_t *pid, const char *cmdline, int *fds); @@ -170,30 +171,29 @@ int tv_convex_combination(const long a, const struct timeval *tv1, const long b, const struct timeval *tv2, struct timeval *result); void ms2tv(const long unsigned n, struct timeval *tv); +void compute_chunk_time(long unsigned chunk_num, + struct timeval *chunk_tv, struct timeval *stream_start, + struct timeval *result); -/* stat */ -enum { - SI_STATUS_BAR, SI_STATUS, SI_NUM_PLAYED, - SI_MTIME, SI_LENGTH_MIN, SI_LENGTH_SEC, - SI_FILE_SIZE, SI_STATUS_FLAGS, SI_FORMAT, - SI_SCORE, SI_AUDIO_INFO1, SI_AUDIO_INFO2, - SI_AUDIO_INFO3, SI_DBINFO1, SI_DBINFO2, - SI_DBINFO3, SI_DECODER_FLAGS, SI_AUDIOD_STATUS, - SI_PLAY_TIME, SI_UPTIME, SI_OFFSET, - SI_LENGTH, SI_STREAM_START, SI_CURRENT_TIME, - SI_AUDIOD_UPTIME, SI_SELECTOR, NUM_STAT_ITEMS -}; - +/** The enum of all status items. */ +enum status_items {STATUS_ITEM_ENUM NUM_STAT_ITEMS}; +extern const char *status_item_list[]; +/** Loop over each status item. */ +#define FOR_EACH_STATUS_ITEM(i) for (i = 0; i < NUM_STAT_ITEMS; i++) int stat_item_valid(const char *item); int stat_line_valid(const char *); void stat_client_write(const char *msg, int itemnum); -int stat_client_add(int fd, long unsigned mask); -size_t for_each_line(char *buf, size_t n, void (*line_handler)(char *)); -#define FOR_EACH_STAT_ITEM(i) for (i = 0; i < NUM_STAT_ITEMS; i++) +int stat_client_add(int fd, uint64_t mask); __printf_2_3 void para_log(int, const char*, ...); -/* taken from printf man page */ +/** + * Write a log message to a dynamically allocated string. + * + * \param fmt Usual format string. + * \param p Result pointer. + * + * \sa printf(3). */ #define PARA_VSPRINTF(fmt, p) \ { \ int n; \ @@ -216,3 +216,42 @@ __printf_2_3 void para_log(int, const char*, ...); p = para_realloc(p, size); \ } \ } + +/** + * Return a random non-negative integer in an interval. + * + * \param max Determines maximal possible return value. + * + * \return An integer between zero and \p max - 1, inclusively. + */ +static inline long int para_random(unsigned max) +{ + return ((max + 0.0) * (random() / (RAND_MAX + 1.0))); +} + +/** Round up x to a multiple of y */ +#define ROUND_UP(x, y) ((((x) + ((y) - 1)) / (y)) * (y)) + + +/** Get the size of an array */ +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) + +/** + * Wrapper for isspace. + * NetBSD needs this. + */ +/* + * The values should be cast to an unsigned char first, then to int. + * Why? Because the isdigit (as do all other is/to functions/macros) + * expect a number from 0 upto and including 255 as their (int) argument. + * Because char is signed on most systems, casting it to int immediately + * gives the functions an argument between -128 and 127 (inclusive), + * which they will use as an array index, and which will thus fail + * horribly for characters which have their most significant bit set. + */ +#define para_isspace(c) isspace((int)(unsigned char)(c)) + +/** Data that indicates an eof-condition for a fec-encoded stream. */ +#define FEC_EOF_PACKET "\xec\x0d\xcc\xfe\0\0\0\0" \ + "\0\0\0\0\0\0\0\0" "\0\0\0\0\0\0\0\0" "\0\0\0\0\0\0\0\0" +#define FEC_EOF_PACKET_LEN 32