diff -r 000000000000 -r 06009f72d657 branches/gmyth-0.1b/src/gmyth_util.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/branches/gmyth-0.1b/src/gmyth_util.c Tue Feb 13 23:17:35 2007 +0000 @@ -0,0 +1,647 @@ +/** +* GMyth Library +* +* @file gmyth/gmyth_util.c +* +* @brief

This component provides utility functions. +* +* Copyright (C) 2006 INdT - Instituto Nokia de Tecnologia. +* @author Hallyson Luiz de Morais Melo +* +*//* +* +* This program is free software; you can redistribute it and/or modify +* it under the terms of the GNU Lesser 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 Lesser General Public License +* along with this program; if not, write to the Free Software +* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#define _XOPEN_SOURCE +#define _XOPEN_SOURCE_EXTENDED +#define __USE_MISC + +#include +#include +#include +#include +#include + +#include "gmyth.h" + +#if !GLIB_CHECK_VERSION (2, 10, 0) +gchar * +g_time_val_to_iso8601 (GTimeVal *time_); +gboolean +g_time_val_from_iso8601 (const gchar *iso_date, + GTimeVal *time_); +void +g_date_set_time_val (GDate *date, + GTimeVal *timeval); + +#endif + +static GStaticMutex mutex = G_STATIC_MUTEX_INIT; + +/** Converts a time_t struct in a GString at ISO standard format + * (e.g. 2006-07-20T09:56:41). + * + * The returned GString memory should be deallocated from + * the calling function. + * + * @param time_value the time value to be converted + * @return GString* the converted isoformat string + */ +GString* +gmyth_util_time_to_isoformat (time_t time_value) +{ + struct tm tm_time; + GString *result; + + g_static_mutex_lock ( &mutex ); + + if (localtime_r(&time_value, &tm_time) == NULL) { + g_static_mutex_unlock ( &mutex ); + g_warning ("gmyth_util_time_to_isoformat convertion error!\n"); + return NULL; + } + + result = g_string_sized_new(20); + g_string_printf(result, "%04d-%02d-%02dT%02d:%02d:%02d", + tm_time.tm_year + 1900, tm_time.tm_mon + 1, tm_time.tm_mday, + tm_time.tm_hour, tm_time.tm_min, tm_time.tm_sec); + + gmyth_debug( "Result (ISO 8601) = %s", result->str ); + + g_static_mutex_unlock ( &mutex ); + + return result; +} + +/** Converts a time_t struct in a GString at ISO standard format + * (e.g. 2006-07-20T09:56:41). + * + * The returned GString memory should be deallocated from + * the calling function. + * + * @param time_value the GTimeValue to be converted + * @return GString* the converted isoformat string + */ +gchar* +gmyth_util_time_to_isoformat_from_time_val_fmt ( const gchar *fmt_string, const GTimeVal* time_val ) +{ + gchar *result = NULL; + struct tm *tm_time = NULL; + + gint buffer_len = 0; + + g_return_val_if_fail( fmt_string != NULL, NULL ); + + g_return_val_if_fail( time_val != NULL, NULL ); + + time_t time = time_val->tv_sec;// + (gint)( time_val->tv_usec / G_USEC_PER_SEC ); + + tm_time = g_malloc0( sizeof(struct tm) ); + + g_static_mutex_lock ( &mutex ); + + if ( NULL == localtime_r( &time, tm_time ) ) { + g_warning ("gmyth_util_time_to_isoformat convertion error!\n"); + } else { + // we first check the return of strftime to allocate a buffer of the correct size + buffer_len = strftime( NULL, SSIZE_MAX, fmt_string, tm_time ); + if ( buffer_len > 0 ) { + result = g_malloc0( buffer_len + 1 ); + if( result == NULL ){ + g_static_mutex_unlock ( &mutex ); + g_warning ("gmyth_util_time_to_isoformat convertion error!\n"); + return NULL; + } + strftime( result, buffer_len + 1, fmt_string, tm_time ); + gmyth_debug( "Dateline (ISO result): %s", result ); + } + + } + + gmyth_debug( "Result (strftime) = %s", result ); + + //strptime( result, "%Y-%m-%dT%H:%M:%SZ", tm_time ); + + //strftime( result, strlen(result), fmt_string, tm_time ); + + g_static_mutex_unlock ( &mutex ); + + gmyth_debug( "Result (ISO 8601) = %s", result ); + + return result; + +} + +/** Converts a time_t struct in a GString at ISO standard format + * (e.g. 2006-07-20 09:56:41). + * + * The returned GString memory should be deallocated from + * the calling function. + * + * @param time_value the GTimeValue to be converted + * @return GString* the converted isoformat string + */ +gchar* +gmyth_util_time_to_isoformat_from_time_val ( const GTimeVal* time ) +{ + gchar *result = gmyth_util_time_to_isoformat_from_time_val_fmt( "%Y-%m-%d %H:%M:%S", time ); + //result[10] = ' '; + //result[ strlen(result) - 1] = '\0'; + + return result; +} + +/** Converts a time_t struct in a GString at ISO standard format 2 + * (e.g. 2006-07-20T09:56:41). + * + * The returned GString memory should be deallocated from + * the calling function. + * + * @param time_value the GTimeValue to be converted + * @return GString* the converted isoformat string + */ +gchar* +gmyth_util_time_to_mythformat_from_time_val ( const GTimeVal* time ) +{ + gchar *result = gmyth_util_time_to_isoformat_from_time_val_fmt( "%Y-%m-%dT%H:%M:%S", time ); + return result; +} + +/** Converts a time_t struct in a GString at ISO standard format + * (e.g. 2006-07-20T09:56:41). + * + * The returned GString memory should be deallocated from + * the calling function. + * + * @param time_value the GTimeValue to be converted + * @return GString* the converted isoformat string + */ +gchar* +gmyth_util_time_to_string_only_date ( const GTimeVal* time ) +{ + gchar *result = gmyth_util_time_to_isoformat_from_time_val_fmt( "%Y-%m-%d", time ); + //result[10] = ' '; + //result[ strlen(result) - 1] = '\0'; + return result; +} + +/** Converts a time_t struct in a GString at ISO standard format + * (e.g. 2006-07-20T09:56:41). + * + * The returned GString memory should be deallocated from + * the calling function. + * + * @param time_value the GTimeValue to be converted + * @return GString* the converted isoformat string + */ +gchar* +gmyth_util_time_to_string_only_time ( const GTimeVal* time ) +{ + gchar *result = gmyth_util_time_to_isoformat_from_time_val_fmt( "%H:%M:%S", time ); + //result[10] = ' '; + //result[ strlen(result) - 1] = '\0'; + return result; +} + +/** Converts a time_t struct in a GString to the following + * format (e.g. 2006-07-20 09:56:41). + * + * The returned GString memory should be deallocated from + * the calling function. + * + * @param time_value the time value to be converted + * @return GString* the converted string + */ +GString* +gmyth_util_time_to_string (time_t time_value) +{ + GString *result = gmyth_util_time_to_isoformat (time_value); + result->str[10] = ' '; + result->str[ strlen(result->str) - 1] = '\0'; + + return result; +} + +/** Converts a time_t struct in a GString to the following + * format (e.g. 2006-07-20 09:56:41). + * + * The returned GString memory should be deallocated from + * the calling function. + * + * @param time_value the time value to be converted + * @return GString* the converted string + */ +gchar* +gmyth_util_time_to_string_from_time_val ( const GTimeVal *time_val ) +{ + gchar *result = gmyth_util_time_to_isoformat_from_time_val_fmt ( "%Y-%m-%d %H:%M:%S", time_val ); + //result[10] = ' '; + + return result; +} + +/** Converts a GString in the following format + * (e.g. 2006-07-20 09:56:41) to a time_t struct. + * + * @param time_str the string to be converted + * @return time_t the time converted value + */ +time_t +gmyth_util_string_to_time (GString* time_str) +{ + gint year, month, day, hour, min, sec; + + gmyth_debug( "[%s] time_str = %s. [%s]", __FUNCTION__, time_str != NULL ? + time_str->str : "[time string is NULL!]", time_str->str ); + + if ( sscanf (time_str->str, "%04d-%02d-%02d %02d:%02d:%02d", + &year, &month, &day, &hour, &min, &sec) < 3 ) { + g_warning ("GMythUtil: isoformat_to_time converter error!\n"); + return 0; + } + + g_static_mutex_lock ( &mutex ); + + struct tm* tm_time = g_malloc0( sizeof(struct tm) ); + tm_time->tm_year = year - 1900; + tm_time->tm_mon = month - 1; + tm_time->tm_mday = day; + tm_time->tm_hour = hour; + tm_time->tm_min = min; + tm_time->tm_sec = sec; + + g_static_mutex_unlock ( &mutex ); + + return mktime( tm_time ); +} + +/** Converts a GString in the following format + * (e.g. 2006-07-20 09:56:41) to a time_t struct. + * + * @param time_str the string to be converted + * @return time_t the time converted value + */ +struct tm* +gmyth_util_time_val_to_date ( const GTimeVal* time ) +{ + struct tm *date = g_malloc0( sizeof( struct tm ) ); + time_t time_micros = time->tv_sec;// + (gint)( time->tv_usec / G_USEC_PER_SEC ); + + if ( NULL == date ) { + g_warning ( "GMythUtil: GDate *gmyth_util_time_val_to_date (GTimeVal* time) - converter error!\n" ); + return NULL; + } + + if ( NULL == localtime_r( &time_micros, date ) ) { + g_warning ( "gmyth_util_time_to_isoformat convertion error!\n" ); + return NULL; + } + + gmyth_debug( "Converted from GTimeVal == %s to GDate", asctime( date ) ); + + return date; +} + +/** Converts a GString in the following format + * (e.g. 2006-07-20 09:56:41) to a time_t struct. + * + * @param time_str the string to be converted + * @return time_t the time converted value + */ +GTimeVal* +gmyth_util_string_to_time_val_fmt ( const gchar *fmt_string, const gchar* time_str ) +{ + GTimeVal *time = g_new0( GTimeVal, 1 ); + struct tm* tm_time = NULL; + time_t time_micros; + gint result; + + gmyth_debug( "[%s] time_str = %s. [%s]", time_str, time_str != NULL ? + time_str : "[time string is NULL!]", time_str ); + + if ( NULL == time_str ) + { + g_warning ("GMythUtil: isoformat_to_time converter error!\n"); + return NULL; + } + + g_static_mutex_lock ( &mutex ); + + tm_time = g_malloc0( sizeof(struct tm) ); + + /* we first check the return of strftime to allocate a buffer of the correct size */ + result = strptime( time_str, "%Y-%m-%dT%H:%M:%S", tm_time ); + if ( NULL == result ) { + /* we first check the return of strftime to allocate a buffer of the correct size */ + result = strptime( time_str, "%Y-%m-%dT%H:%M:%SZ", tm_time ); + if ( NULL == result ) { + /* we first check the return of strftime to allocate a buffer of the correct size */ + result = strptime( time_str, "%Y-%m-%d %H:%M:%S", tm_time ); + if ( NULL == result ) { + g_static_mutex_unlock ( &mutex ); + gmyth_debug( "Dateline (ISO result): %s", result ); + time = NULL; + //goto done; + } + } + } + + time_micros = mktime( tm_time ); + + time->tv_sec = time_micros; // + (gint)( time_val->tv_usec / G_USEC_PER_SEC ); + + gmyth_debug( "After mktime call... = %s", asctime(tm_time) ); + + g_static_mutex_unlock ( &mutex ); + + return time; +} + +/** Converts a GString in the following format + * (e.g. 2006-07-20 09:56:41) to a time_t struct. + * + * @param time_str the string to be converted + * @return time_t the time converted value + */ +GTimeVal* +gmyth_util_string_to_time_val ( const gchar* time_str ) +{ + GTimeVal *time = gmyth_util_string_to_time_val_fmt ( "%Y-%m-%d %H:%M:%S", time_str ); + + return time; +} + +/** Decodes a long long variable from the string list + * format of the myhtprotocol. + * + * @param strlist the string list of mythprotocol values + * @param offset the list node offset of the long long variable + * @return gint64 the long long converted value + */ +gint64 +gmyth_util_decode_long_long(GMythStringList *strlist, guint offset) +{ + + gint64 ret_value = 0LL; + + g_return_val_if_fail( strlist != NULL, ret_value ); + + if ( offset > gmyth_string_list_length( strlist )) + g_printerr( "[%s] Offset is greater than the Stringlist (offset = %d)!\n", + __FUNCTION__, offset ); + + g_return_val_if_fail( offset < gmyth_string_list_length( strlist ), ret_value ); + + gint l1 = gmyth_string_list_get_int( strlist, offset ); + gint l2 = gmyth_string_list_get_int( strlist, offset + 1 ); + + ret_value = (l2 /*& 0xffffffffLL*/) | ( (gint64)l1 << 32 ); + + return ret_value; + +} + +gboolean +gmyth_util_file_exists (GMythBackendInfo *backend_info, const gchar* filename) +{ + GMythSocket *socket; + gboolean res; + + socket = gmyth_socket_new (); + res = gmyth_socket_connect_to_backend (socket, backend_info->hostname, + backend_info->port, TRUE); + + if (res == TRUE) { + GMythStringList *slist; + GMythProgramInfo *program = NULL; + + program = gmyth_program_info_new(); + program->pathname = g_string_new (filename); + + slist = gmyth_string_list_new (); + gmyth_string_list_append_char_array (slist, "QUERY_CHECKFILE"); + + gmyth_program_info_to_string_list (program, slist); + + gmyth_socket_sendreceive_stringlist (socket, slist); + + res = (gmyth_string_list_get_int (slist, 0) == 1); + + g_object_unref (program); + + g_object_unref (slist); + + gmyth_socket_close_connection (socket); + } + g_object_unref (socket); + return res; +} + + +#if !GLIB_CHECK_VERSION (2, 10, 0) + +/* Hacked from glib 2.10 */ + +static time_t +mktime_utc (struct tm *tm) +{ + time_t retval; + +#ifndef HAVE_TIMEGM + static const gint days_before[] = + { + 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 + }; +#endif + +#ifndef HAVE_TIMEGM + if (tm->tm_mon < 0 || tm->tm_mon > 11) + return (time_t) -1; + + retval = (tm->tm_year - 70) * 365; + retval += (tm->tm_year - 68) / 4; + retval += days_before[tm->tm_mon] + tm->tm_mday - 1; + + if (tm->tm_year % 4 == 0 && tm->tm_mon < 2) + retval -= 1; + + retval = ((((retval * 24) + tm->tm_hour) * 60) + tm->tm_min) * 60 + tm->tm_sec; +#else + retval = timegm (tm); +#endif /* !HAVE_TIMEGM */ + + return retval; +} + +gboolean +g_time_val_from_iso8601 (const gchar *iso_date, + GTimeVal *time_) +{ + struct tm tm; + long val; + + g_return_val_if_fail (iso_date != NULL, FALSE); + g_return_val_if_fail (time_ != NULL, FALSE); + + val = strtoul (iso_date, (char **)&iso_date, 10); + if (*iso_date == '-') + { + /* YYYY-MM-DD */ + tm.tm_year = val - 1900; + iso_date++; + tm.tm_mon = strtoul (iso_date, (char **)&iso_date, 10) - 1; + + if (*iso_date++ != '-') + return FALSE; + + tm.tm_mday = strtoul (iso_date, (char **)&iso_date, 10); + } + else + { + /* YYYYMMDD */ + tm.tm_mday = val % 100; + tm.tm_mon = (val % 10000) / 100 - 1; + tm.tm_year = val / 10000 - 1900; + } + + if (*iso_date++ != 'T') + return FALSE; + + val = strtoul (iso_date, (char **)&iso_date, 10); + if (*iso_date == ':') + { + /* hh:mm:ss */ + tm.tm_hour = val; + iso_date++; + tm.tm_min = strtoul (iso_date, (char **)&iso_date, 10); + + if (*iso_date++ != ':') + return FALSE; + + tm.tm_sec = strtoul (iso_date, (char **)&iso_date, 10); + } + else + { + /* hhmmss */ + tm.tm_sec = val % 100; + tm.tm_min = (val % 10000) / 100; + tm.tm_hour = val / 10000; + } + + time_->tv_sec = mktime_utc (&tm); + time_->tv_usec = 1; + + if (*iso_date == '.') + time_->tv_usec = strtoul (iso_date + 1, (char **)&iso_date, 10); + + if (*iso_date == '+' || *iso_date == '-') + { + gint sign = (*iso_date == '+') ? -1 : 1; + + val = 60 * strtoul (iso_date + 1, (char **)&iso_date, 10); + + if (*iso_date == ':') + val = 60 * val + strtoul (iso_date + 1, NULL, 10); + else + val = 60 * (val / 100) + (val % 100); + + time_->tv_sec += (time_t) (val * sign); + } + + return TRUE; +} + + +gchar * +g_time_val_to_iso8601 (GTimeVal *time_) +{ + gchar *retval; + + g_return_val_if_fail (time_->tv_usec >= 0 && time_->tv_usec < G_USEC_PER_SEC, NULL); + +#define ISO_8601_LEN 21 +#define ISO_8601_FORMAT "%Y-%m-%dT%H:%M:%SZ" + retval = g_new0 (gchar, ISO_8601_LEN + 1); + + strftime (retval, ISO_8601_LEN, + ISO_8601_FORMAT, + gmtime (&(time_->tv_sec))); + + return retval; +} + + +/* Hacked from glib 2.10 */ + +void +g_date_set_time_t (GDate *date, + time_t timet) +{ + struct tm tm; + + g_return_if_fail (date != NULL); + +#ifdef HAVE_LOCALTIME_R + localtime_r (&timet, &tm); +#else + { + struct tm *ptm = localtime (&timet); + + if (ptm == NULL) + { + /* Happens at least in Microsoft's C library if you pass a + * negative time_t. Use 2000-01-01 as default date. + */ +#ifndef G_DISABLE_CHECKS + g_return_if_fail_warning (G_LOG_DOMAIN, "g_date_set_time", "ptm != NULL"); +#endif + + tm.tm_mon = 0; + tm.tm_mday = 1; + tm.tm_year = 100; + } + else + memcpy ((void *) &tm, (void *) ptm, sizeof(struct tm)); + } +#endif + + date->julian = FALSE; + + date->month = tm.tm_mon + 1; + date->day = tm.tm_mday; + date->year = tm.tm_year + 1900; + + g_return_if_fail (g_date_valid_dmy (date->day, date->month, date->year)); + + date->dmy = TRUE; +} + + +void +g_date_set_time_val (GDate *date, + GTimeVal *timeval) +{ + g_date_set_time_t (date, (time_t) timeval->tv_sec); +} + + + + +#endif