/* log - a generic logging facility in the spirit of log4j */
-/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
+/* Copyright (c) 2004-2011. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
typedef struct {
char *catname;
- e_xbt_log_priority_t thresh;
char *fmt;
+ e_xbt_log_priority_t thresh;
int additivity;
xbt_log_appender_t appender;
} s_xbt_log_setting_t, *xbt_log_setting_t;
xbt_log_setting_t set = *(xbt_log_setting_t *) s;
if (set) {
free(set->catname);
- if (set->fmt)
- free(set->fmt);
+ free(set->fmt);
free(set);
}
}
s_xbt_log_category_t _XBT_LOGV(XBT_LOG_ROOT_CAT) = {
NULL /*parent */ , NULL /* firstChild */ , NULL /* nextSibling */ ,
- "root", xbt_log_priority_uninitialized /* threshold */ ,
+ "root",
+ 0 /*initialized */, xbt_log_priority_uninitialized /* threshold */ ,
0 /* isThreshInherited */ ,
NULL /* appender */ , NULL /* layout */ ,
0 /* additivity */
log_cat_exit(&_XBT_LOGV(XBT_LOG_ROOT_CAT));
}
+ /* Size of the static string in which we build the log string */
+#define XBT_LOG_STATIC_BUFFER_SIZE 2048
+/* Minimum size of the dynamic string in which we build the log string
+ (should be greater than XBT_LOG_STATIC_BUFFER_SIZE) */
+#define XBT_LOG_DYNAMIC_BUFFER_SIZE 4096
+
void _xbt_log_event_log(xbt_log_event_t ev, const char *fmt, ...)
{
-
xbt_log_category_t cat = ev->cat;
- va_start(ev->ap, fmt);
- va_start(ev->ap_copy, fmt);
- while (1) {
+ xbt_assert(ev->priority >= 0,
+ "Negative logging priority naturally forbidden");
+ xbt_assert(ev->priority < sizeof(xbt_log_priority_names),
+ "Priority %d is greater than the biggest allowed value",
+ ev->priority);
+
+ do {
xbt_log_appender_t appender = cat->appender;
- if (appender != NULL) {
- xbt_assert(cat->layout,
- "No valid layout for the appender of category %s",
- cat->name);
- cat->layout->do_layout(cat->layout, ev, fmt, appender);
+
+ if (!appender)
+ continue; /* No appender, try next */
+
+ xbt_assert(cat->layout,
+ "No valid layout for the appender of category %s", cat->name);
+
+ /* First, try with a static buffer */
+ if (XBT_LOG_STATIC_BUFFER_SIZE) {
+ char buff[XBT_LOG_STATIC_BUFFER_SIZE];
+ int done;
+ ev->buffer = buff;
+ ev->buffer_size = sizeof buff;
+ va_start(ev->ap, fmt);
+ done = cat->layout->do_layout(cat->layout, ev, fmt);
+ va_end(ev->ap);
+ if (done) {
+ appender->do_append(appender, buff);
+ continue; /* Ok, that worked: go next */
+ }
}
- if (!cat->additivity)
- break;
- cat = cat->parent;
- }
- va_end(ev->ap);
- va_end(ev->ap_copy);
+ /* The static buffer was too small, use a dynamically expanded one */
+ ev->buffer_size = XBT_LOG_DYNAMIC_BUFFER_SIZE;
+ ev->buffer = xbt_malloc(ev->buffer_size);
+ while (1) {
+ int done;
+ va_start(ev->ap, fmt);
+ done = cat->layout->do_layout(cat->layout, ev, fmt);
+ va_end(ev->ap);
+ if (done)
+ break; /* Got it */
+ ev->buffer_size *= 2;
+ ev->buffer = xbt_realloc(ev->buffer, ev->buffer_size);
+ }
+ appender->do_append(appender, ev->buffer);
+ xbt_free(ev->buffer);
+
+ } while (cat->additivity && (cat = cat->parent, 1));
}
+#undef XBT_LOG_DYNAMIC_BUFFER_SIZE
+#undef XBT_LOG_STATIC_BUFFER_SIZE
+
/* NOTE:
*
* The standard logging macros use _XBT_LOG_ISENABLED, which calls
xbt_os_rmutex_acquire(log_cat_init_mutex);
}
- if (category->threshold != xbt_log_priority_uninitialized) {
+ if (category->initialized) {
if (log_cat_init_mutex != NULL) {
xbt_os_rmutex_release(log_cat_init_mutex);
}
if (category == &_XBT_LOGV(XBT_LOG_ROOT_CAT)) {
category->threshold = xbt_log_priority_info;
- /* xbt_log_priority_debug */ ;
category->appender = xbt_log_default_appender;
category->layout = xbt_log_default_layout;
} else {
XBT_DEBUG("Set %s (%s) as father of %s ",
category->parent->name,
- (category->parent->threshold == xbt_log_priority_uninitialized ?
- "uninited" : xbt_log_priority_names[category->
- parent->threshold]),
+ (category->parent->initialized ?
+ xbt_log_priority_names[category->parent->threshold] : "uninited"),
category->name);
xbt_log_parent_set(category, category->parent);
}
/* Apply the control */
- if (!xbt_log_settings) {
- if (log_cat_init_mutex != NULL) {
- xbt_os_rmutex_release(log_cat_init_mutex);
+ if (xbt_log_settings) {
+ xbt_assert(category, "NULL category");
+ xbt_assert(category->name);
+
+ xbt_dynar_foreach(xbt_log_settings, cursor, setting) {
+ xbt_assert(setting, "Damnit, NULL cat in the list");
+ xbt_assert(setting->catname, "NULL setting(=%p)->catname",
+ (void *) setting);
+
+ if (!strcmp(setting->catname, category->name)) {
+ found = 1;
+ _xbt_log_cat_apply_set(category, setting);
+ xbt_dynar_cursor_rm(xbt_log_settings, &cursor);
+ }
}
- return priority >= category->threshold;
- }
-
- xbt_assert(category, "NULL category");
- xbt_assert(category->name);
-
- xbt_dynar_foreach(xbt_log_settings, cursor, setting) {
- xbt_assert(setting, "Damnit, NULL cat in the list");
- xbt_assert(setting->catname, "NULL setting(=%p)->catname",
- (void *) setting);
-
- if (!strcmp(setting->catname, category->name)) {
-
- found = 1;
-
- _xbt_log_cat_apply_set(category, setting);
- xbt_dynar_cursor_rm(xbt_log_settings, &cursor);
- }
+ if (!found)
+ XBT_DEBUG("Category '%s': inherited threshold = %s (=%d)",
+ category->name, xbt_log_priority_names[category->threshold],
+ category->threshold);
}
- if (!found)
- XBT_DEBUG("Category '%s': inherited threshold = %s (=%d)",
- category->name, xbt_log_priority_names[category->threshold],
- category->threshold);
-
+ category->initialized = 1;
if (log_cat_init_mutex != NULL) {
xbt_os_rmutex_release(log_cat_init_mutex);
}
xbt_assert(cat, "NULL category to be given a parent");
xbt_assert(parent, "The parent category of %s is NULL", cat->name);
- /*
- * if the threshold is initialized
- * unlink from current parent
- */
- if (cat->threshold != xbt_log_priority_uninitialized) {
+ /* if the category is initialized, unlink from current parent */
+ if (cat->initialized) {
- xbt_log_category_t *cpp = &parent->firstChild;
+ xbt_log_category_t *cpp = &cat->parent->firstChild;
while (*cpp != cat && *cpp != NULL) {
cpp = &(*cpp)->nextSibling;
parent->firstChild = cat;
- if (parent->threshold == xbt_log_priority_uninitialized) {
-
- _xbt_log_cat_init(parent,
- xbt_log_priority_uninitialized /* ignored */ );
- }
+ if (!parent->initialized)
+ _xbt_log_cat_init(parent, xbt_log_priority_uninitialized /* ignored */ );
cat->threshold = parent->threshold;
/* split the string, and remove empty entries */
set_strings = xbt_str_split_quoted(control_string);
- if (xbt_dynar_length(set_strings) == 0) { /* vicious user! */
+ if (xbt_dynar_is_empty(set_strings)) { /* vicious user! */
xbt_dynar_free(&set_strings);
return;
}
