/* 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
#include "xbt/sysdep.h"
#include "xbt/log_private.h"
#include "xbt/dynar.h"
+#include "xbt/xbt_os_thread.h"
XBT_PUBLIC_DATA(int) (*xbt_pid) ();
int xbt_log_no_loc = 0; /* if set to true (with --log=no_loc), file localization will be omitted (for tesh tests) */
+static xbt_os_rmutex_t log_cat_init_mutex = NULL;
/** \addtogroup XBT_log
*
existing one writes to the specified file. More would be needed, like the one
able to send the logs to a remote dedicated server.
This is on our TODO list for quite a while now, but your help would be
-welcome here, too.
-
-
- *//*' */
-
+welcome here, too. */
xbt_log_appender_t xbt_log_default_appender = NULL; /* set in log_init */
xbt_log_layout_t xbt_log_default_layout = NULL; /* set in log_init */
xbt_log_default_layout = xbt_log_layout_simple_new(NULL);
_XBT_LOGV(XBT_LOG_ROOT_CAT).appender = xbt_log_default_appender;
_XBT_LOGV(XBT_LOG_ROOT_CAT).layout = xbt_log_default_layout;
+ log_cat_init_mutex = xbt_os_rmutex_init();
}
/** @brief Get all logging settings from the command line
void xbt_log_postexit(void)
{
XBT_VERB("Exiting log");
+ xbt_os_rmutex_destroy(log_cat_init_mutex);
xbt_dynar_free(&xbt_log_settings);
log_cat_exit(&_XBT_LOGV(XBT_LOG_ROOT_CAT));
}
+#define XBT_LOG_STATIC_BUFFER_SIZE 2048 /* Size of the static string in which we
+ * build the log string */
+#define XBT_LOG_DYNAMIC_BUFFER_SIZE 256 /* Minimum size of the dynamic string in
+ * which we build the log string */
+
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 = MAX(2 * XBT_LOG_STATIC_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);
-#ifdef _XBT_WIN32
- free(ev->buffer);
-#endif
+ } 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
{
#define _xbt_log_cat_init(a, b) (0)
+ if (log_cat_init_mutex != NULL) {
+ xbt_os_rmutex_acquire(log_cat_init_mutex);
+ }
+
+ if (category->threshold != xbt_log_priority_uninitialized) {
+ if (log_cat_init_mutex != NULL) {
+ xbt_os_rmutex_release(log_cat_init_mutex);
+ }
+ return priority >= category->threshold;
+ }
+
unsigned int cursor;
xbt_log_setting_t setting = NULL;
int found = 0;
}
/* Apply the control */
- if (!xbt_log_settings)
+ if (!xbt_log_settings) {
+ if (log_cat_init_mutex != NULL) {
+ xbt_os_rmutex_release(log_cat_init_mutex);
+ }
return priority >= category->threshold;
+ }
xbt_assert(category, "NULL category");
xbt_assert(category->name);
category->name, xbt_log_priority_names[category->threshold],
category->threshold);
+ if (log_cat_init_mutex != NULL) {
+ xbt_os_rmutex_release(log_cat_init_mutex);
+ }
return priority >= category->threshold;
#undef _xbt_log_cat_init
void xbt_log_parent_set(xbt_log_category_t cat, xbt_log_category_t parent)
{
-
xbt_assert(cat, "NULL category to be given a parent");
xbt_assert(parent, "The parent category of %s is NULL", cat->name);
cat->threshold = parent->threshold;
cat->isThreshInherited = 1;
-
}
static void _set_inherited_thresholds(xbt_log_category_t cat)
