Added debug logging to verify ZOOM_EVENT_RECV_SEARCH

[yaz-moved-to-github.git] / src / log.c

diff --git a/src/log.c b/src/log.c
index 855c749..b001c31 100644 (file)
--- a/src/log.c
+++ b/src/log.c
@@ -1,8 +1,6 @@
-/*
- * Copyright (C) 1995-2007, Index Data ApS
+/* This file is part of the YAZ toolkit.
+ * Copyright (C) 1995-2010 Index Data
  * See the file LICENSE for details.
- *
- * $Id: log.c,v 1.54 2007-06-05 06:42:26 adam Exp $
  */
 
 /**
@@ -16,9 +14,12 @@
 
 #ifdef WIN32
 #include <windows.h>
+#include <sys/stat.h>
 #endif
 
+#if HAVE_SYS_STAT_H
 #include <sys/stat.h>
+#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <ctype.h>
@@ -26,26 +27,12 @@
 #include <stdarg.h>
 #include <errno.h>
 #include <time.h>
-#include <yaz/nmem.h>
+#include <yaz/errno.h>
+#include <yaz/thread_id.h>
 #include <yaz/log.h>
 #include <yaz/snprintf.h>
 #include <yaz/xmalloc.h>
 
-#define HAS_STRERROR 1
-
-
-#if HAS_STRERROR
-
-#else
-char *strerror(int n)
-{
-    extern char *sys_errlist[];
-    return sys_errlist[n];
-}
-
-#endif
-
-
 static int l_level = YLOG_DEFAULT_LEVEL;
 
 enum l_file_type { use_stderr, use_none, use_file };
@@ -69,14 +56,18 @@ static char l_fname[512] = "";
 static char l_old_default_format[] = "%H:%M:%S-%d/%m";
 static char l_new_default_format[] = "%Y%m%d-%H%M%S";
 #define TIMEFORMAT_LEN 50
+#define TID_LEN        30
 static char l_custom_format[TIMEFORMAT_LEN] = "";
 static char *l_actual_format = l_old_default_format;
 
-/** l_max_size tells when to rotate the log. Default is 1 GB 
-    This is almost the same as never, but it saves applications in the
-    case of 2 or 4 GB file size limits..
+/** l_max_size tells when to rotate the log. The default value is
+    0 which means DISABLED. This is to be preffered if YAZ runs
+    as a server using logrotate etc.
+    A positive size specifies the file size in bytes when a log rotate
+    will occur. Note that in order for this to work YAZ must have
+    permissions to do so.
  */
-static int l_max_size = 1024*1024*1024;
+static int l_max_size = 0;
 
 #define MAX_MASK_NAMES 35   /* 32 bits plus a few combo names */
 static struct {
@@ -90,7 +81,8 @@ static struct {
     { YLOG_LOG,    "log"  },
     { YLOG_ERRNO,  ""},
     { YLOG_MALLOC, "malloc"},
-    { YLOG_APP,    "app"  },
+    { YLOG_TID,    "tid"  },
+    { YLOG_APP,    "app"   },
     { YLOG_NOTIME, "notime" },
     { YLOG_APP2,   "app2" }, 
     { YLOG_APP3,   "app3" },
@@ -276,14 +268,14 @@ void yaz_log_set_handler(void (*func)(int, const char *, void *), void *info)
 
 void log_event_start(void (*func)(int, const char *, void *), void *info)
 {
-     start_hook_func = func;
-     start_hook_info = info;
+    start_hook_func = func;
+    start_hook_info = info;
 }
 
 void log_event_end(void (*func)(int, const char *, void *), void *info)
 {
-     end_hook_func = func;
-     end_hook_info = info;
+    end_hook_func = func;
+    end_hook_info = info;
 }
 
 static void yaz_log_open_check(struct tm *tm, int force, const char *filemode)
@@ -294,7 +286,7 @@ static void yaz_log_open_check(struct tm *tm, int force, const char *filemode)
     if (yaz_file_type != use_file)
         return;
 
-    if (l_fname && *l_fname)
+    if (*l_fname)
     {
         strftime(new_filename, sizeof(new_filename)-1, l_fname, tm);
         if (strcmp(new_filename, cur_filename))
@@ -393,6 +385,7 @@ static void yaz_log_to_file(int level, const char *log_message)
     if (file)
     {
         char tbuf[TIMEFORMAT_LEN];
+        char tid[TID_LEN];
         char flags[1024];
         int i;
         
@@ -422,7 +415,16 @@ static void yaz_log_to_file(int level, const char *log_message)
         }
         if (tbuf[0])
             strcat(tbuf, " ");
-        fprintf(file, "%s%s%s %s%s\n", tbuf, l_prefix, flags, l_prefix2,
+        tid[0] = '\0';
+
+        if (l_level & YLOG_TID)
+        {
+            yaz_thread_id_cstr(tid, sizeof(tid)-1);
+            if (tid[0])
+                strcat(tid, " ");
+        }
+
+        fprintf(file, "%s%s%s%s %s%s\n", tbuf, l_prefix, tid, flags, l_prefix2,
                 log_message);
         if (l_level & YLOG_FLUSH)
             fflush(file);
@@ -448,7 +450,7 @@ void yaz_log(int level, const char *fmt, ...)
 
     if (o_level & YLOG_ERRNO)
     {
-        int remain = sizeof(buf) - strlen(buf);
+        size_t remain = sizeof(buf) - strlen(buf);
         if (remain > 100) /* reasonable minimum space for error */
         {
             strcat(buf, " [");
@@ -487,7 +489,7 @@ void yaz_log_time_format(const char *fmt)
 }
 
 /** cleans a loglevel name from leading paths and suffixes */
-static char *clean_name(const char *name, int len, char *namebuf, int buflen)
+static char *clean_name(const char *name, size_t len, char *namebuf, size_t buflen)
 {
     char *p = namebuf;
     char *start = namebuf;
@@ -504,19 +506,19 @@ static char *clean_name(const char *name, int len, char *namebuf, int buflen)
 
 static int define_module_bit(const char *name)
 {
-    int i;
+    size_t i;
 
     for (i = 0; mask_names[i].name; i++)
         if (0 == strcmp(mask_names[i].name, name))
         {
             return mask_names[i].mask;
         }
-    if ( (i>=MAX_MASK_NAMES) || (next_log_bit & (1<<31) ))
+    if ( (i>=MAX_MASK_NAMES) || (next_log_bit & (1U<<31) ))
     {
         yaz_log(YLOG_WARN, "No more log bits left, not logging '%s'", name);
         return 0;
     }
-    mask_names[i].mask = next_log_bit;
+    mask_names[i].mask = (int) next_log_bit; /* next_log_bit can hold int */
     next_log_bit = next_log_bit<<1;
     mask_names[i].name = (char *) malloc(strlen(name)+1);
     strcpy(mask_names[i].name, name);
@@ -573,7 +575,7 @@ int yaz_log_mask_str_x(const char *str, int level)
         else 
         {
             char clean[509];
-            char *n = clean_name(str, p-str, clean, sizeof(clean));
+            char *n = clean_name(str, (size_t) (p - str), clean, sizeof(clean));
             int mask = define_module_bit(n);
             if (!mask)
                 level = 0;  /* 'none' clears them all */
@@ -591,7 +593,9 @@ int yaz_log_mask_str_x(const char *str, int level)
 /*
  * Local variables:
  * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
  * indent-tabs-mode: nil
  * End:
  * vim: shiftwidth=4 tabstop=8 expandtab
  */
+