--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.3/spandsp-0.0.3/src/logging.c	Fri Jun 25 16:00:21 2010 +0200
@@ -0,0 +1,256 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * logging.c - error and debug logging.
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2005 Steve Underwood
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: logging.c,v 1.22 2006/11/30 15:41:47 steveu Exp $
+ */
+
+/*! \file */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#include <sys/time.h>
+#include <time.h>
+
+#include "spandsp/telephony.h"
+#include "spandsp/logging.h"
+
+static void default_message_handler(int level, const char *text);
+
+static message_handler_func_t __span_message = *default_message_handler;
+static error_handler_func_t __span_error = NULL;
+
+static const char *severities[] =
+{
+    "NONE",
+    "ERROR",
+    "WARNING",
+    "PROTOCOL_ERROR",
+    "PROTOCOL_WARNING",
+    "FLOW",
+    "FLOW 2",
+    "FLOW 3",
+    "DEBUG 1",
+    "DEBUG 2",
+    "DEBUG 3"
+};
+
+static void default_message_handler(int level, const char *text)
+{
+    fprintf(stderr, "%s", text);
+}
+/*- End of function --------------------------------------------------------*/
+
+int span_log_test(logging_state_t *s, int level)
+{
+    if (s  &&  (s->level & SPAN_LOG_SEVERITY_MASK) >= (level & SPAN_LOG_SEVERITY_MASK))
+        return TRUE;
+    return FALSE;
+}
+/*- End of function --------------------------------------------------------*/
+
+int span_log(logging_state_t *s, int level, const char *format, ...)
+{
+    char msg[1024 + 1];
+    va_list arg_ptr;
+    int len;
+    struct tm *tim;
+    struct timeval nowx;
+    time_t now;
+
+    if (span_log_test(s, level))
+    {
+        va_start(arg_ptr, format);
+        len = 0;
+        if ((level & SPAN_LOG_SUPPRESS_LABELLING) == 0)
+        {
+            if ((s->level & SPAN_LOG_SHOW_DATE))
+            {
+                gettimeofday(&nowx, NULL);
+                now = nowx.tv_sec;
+                tim = gmtime(&now);
+                snprintf(msg + len,
+                         1024 - len,
+                         "%04d/%02d/%02d %02d:%02d:%02d.%03d ",
+                         tim->tm_year + 1900,
+                         tim->tm_mon + 1,
+                         tim->tm_mday,
+                         tim->tm_hour,
+                         tim->tm_min,
+                         tim->tm_sec,
+                         (int) nowx.tv_usec/1000);
+                len += (int) strlen(msg + len);
+            }
+            /*endif*/
+            if ((s->level & SPAN_LOG_SHOW_SAMPLE_TIME))
+            {
+                now = s->elapsed_samples/s->samples_per_second;
+                tim = gmtime(&now);
+                snprintf(msg + len,
+                         1024 - len,
+                         "%02d:%02d:%02d.%03d ",
+                         tim->tm_hour,
+                         tim->tm_min,
+                         tim->tm_sec,
+                         (int) (s->elapsed_samples%s->samples_per_second)*1000/s->samples_per_second);
+                len += (int) strlen(msg + len);
+            }
+            /*endif*/
+            if ((s->level & SPAN_LOG_SHOW_SEVERITY)  &&  (level & SPAN_LOG_SEVERITY_MASK) <= SPAN_LOG_DEBUG_3)
+                len += snprintf(msg + len, 1024 - len, "%s ", severities[level & SPAN_LOG_SEVERITY_MASK]);
+            /*endif*/
+            if ((s->level & SPAN_LOG_SHOW_PROTOCOL)  &&  s->protocol)
+                len += snprintf(msg + len, 1024 - len, "%s ", s->protocol);
+            /*endif*/
+            if ((s->level & SPAN_LOG_SHOW_TAG)  &&  s->tag)
+                len += snprintf(msg + len, 1024 - len, "%s ", s->tag);
+            /*endif*/
+        }
+        /*endif*/
+        len += vsnprintf(msg + len, 1024 - len, format, arg_ptr);
+        if (s->span_error  &&  level == SPAN_LOG_ERROR)
+            s->span_error(msg);
+        else if (__span_error  &&  level == SPAN_LOG_ERROR)
+            __span_error(msg);
+        else if (s->span_message)
+            s->span_message(level, msg);
+        else if (__span_message)
+            __span_message(level, msg);
+        /*endif*/
+        va_end(arg_ptr);
+        return  1;
+    }
+    /*endif*/
+    return  0;
+}
+/*- End of function --------------------------------------------------------*/
+
+int span_log_buf(logging_state_t *s, int level, const char *tag, const uint8_t *buf, int len)
+{
+    char msg[1024];
+    int i;
+    int msg_len;
+
+    if (span_log_test(s, level))
+    {
+        msg_len = 0;
+        if (tag)
+            msg_len += snprintf(msg + msg_len, 1024 - msg_len, "%s", tag);
+        for (i = 0;  i < len  &&  msg_len < 800;  i++)
+            msg_len += snprintf(msg + msg_len, 1024 - msg_len, " %02x", buf[i]);
+        msg_len += snprintf(msg + msg_len, 1024 - msg_len, "\n");
+        return span_log(s, level, msg);
+    }
+    return 0;
+}
+/*- End of function --------------------------------------------------------*/
+
+int span_log_init(logging_state_t *s, int level, const char *tag)
+{
+    s->span_error = __span_error;
+    s->span_message = __span_message;
+    s->level = level;
+    s->tag = tag;
+    s->protocol = NULL;
+    s->samples_per_second = SAMPLE_RATE;
+    s->elapsed_samples = 0;
+
+    return  0;
+}
+/*- End of function --------------------------------------------------------*/
+
+int span_log_set_level(logging_state_t *s, int level)
+{
+    s->level = level;
+
+    return  0;
+}
+/*- End of function --------------------------------------------------------*/
+
+int span_log_set_tag(logging_state_t *s, const char *tag)
+{
+    s->tag = tag;
+
+    return  0;
+}
+/*- End of function --------------------------------------------------------*/
+
+int span_log_set_protocol(logging_state_t *s, const char *protocol)
+{
+    s->protocol = protocol;
+
+    return  0;
+}
+/*- End of function --------------------------------------------------------*/
+
+int span_log_set_sample_rate(logging_state_t *s, int samples_per_second)
+{
+    s->samples_per_second = samples_per_second;
+
+    return  0;
+}
+/*- End of function --------------------------------------------------------*/
+
+int span_log_bump_samples(logging_state_t *s, int samples)
+{
+    s->elapsed_samples += samples;
+
+    return  0;
+}
+/*- End of function --------------------------------------------------------*/
+
+void span_log_set_message_handler(logging_state_t *s, message_handler_func_t func)
+{
+    s->span_message = func;
+}
+/*- End of function --------------------------------------------------------*/
+
+void span_log_set_error_handler(logging_state_t *s, error_handler_func_t func)
+{
+    s->span_error = func;
+}
+/*- End of function --------------------------------------------------------*/
+
+void span_set_message_handler(message_handler_func_t func)
+{
+    __span_message = func;
+}
+/*- End of function --------------------------------------------------------*/
+
+void span_set_error_handler(error_handler_func_t func)
+{
+    __span_error = func;
+}
+/*- End of function --------------------------------------------------------*/
+/*- End of file ------------------------------------------------------------*/