/**
* SECTION:gstinfo
+ * @title: GstInfo
* @short_description: Debugging and logging facilities
- * @see_also: #gstreamer-gstconfig, #gstreamer-Gst for command line parameters
+ * @see_also: #gst-running for command line parameters
* and environment variables that affect the debugging output.
*
* GStreamer's debugging subsystem is an easy way to get information about what
* categories. This is easily done with 3 lines. At the top of your code,
* declare
* the variables and set the default category.
- * <informalexample>
- * <programlisting>
- * GST_DEBUG_CATEGORY_STATIC (my_category); // define category (statically)
- * &hash;define GST_CAT_DEFAULT my_category // set as default
- * </programlisting>
- * </informalexample>
+ * |[<!-- language="C" -->
+ * GST_DEBUG_CATEGORY_STATIC (my_category); // define category (statically)
+ * #define GST_CAT_DEFAULT my_category // set as default
+ * ]|
* After that you only need to initialize the category.
- * <informalexample>
- * <programlisting>
- * GST_DEBUG_CATEGORY_INIT (my_category, "my category",
- * 0, "This is my very own");
- * </programlisting>
- * </informalexample>
+ * |[<!-- language="C" -->
+ * GST_DEBUG_CATEGORY_INIT (my_category, "my category",
+ * 0, "This is my very own");
+ * ]|
* Initialization must be done before the category is used first.
* Plugins do this
* in their plugin_init function, libraries and applications should do that
#undef gst_debug_add_log_function
#ifndef GST_DISABLE_GST_DEBUG
-
#ifdef HAVE_DLFCN_H
# include <dlfcn.h>
#endif
-#ifdef HAVE_PRINTF_EXTENSION
-# include <printf.h>
-#endif
#include <stdio.h> /* fprintf */
#include <glib/gstdio.h>
#include <errno.h>
#include "gstquark.h"
#include "gstsegment.h"
#include "gstvalue.h"
+#include "gstcapsfeatures.h"
#ifdef HAVE_VALGRIND_VALGRIND_H
# include <valgrind/valgrind.h>
#endif
#include <glib/gprintf.h> /* g_sprintf */
+/* our own printf implementation with custom extensions to %p for caps etc. */
+#include "printf/printf.h"
+#include "printf/printf-extension.h"
+
+static char *gst_info_printf_pointer_extension_func (const char *format,
+ void *ptr);
+#else /* GST_DISABLE_GST_DEBUG */
+
+#include <glib/gprintf.h>
#endif /* !GST_DISABLE_GST_DEBUG */
+#ifdef HAVE_UNWIND
+/* No need for remote debugging so turn on the 'local only' optimizations in
+ * libunwind */
+#define UNW_LOCAL_ONLY
+
+#include <libunwind.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <errno.h>
+
+#ifdef HAVE_DW
+#include <elfutils/libdwfl.h>
+#endif /* HAVE_DW */
+#endif /* HAVE_UNWIND */
+
+#ifdef HAVE_BACKTRACE
+#include <execinfo.h>
+#define BT_BUF_SIZE 100
+#endif /* HAVE_BACKTRACE */
+
+#ifdef HAVE_DBGHELP
+#include <Windows.h>
+#include <dbghelp.h>
+#include <tlhelp32.h>
+#endif /* HAVE_DBGHELP */
+
extern gboolean gst_is_initialized (void);
/* we want these symbols exported even if debug is disabled, to maintain
GstDebugCategory *_priv_GST_CAT_POLL = NULL;
GstDebugCategory *GST_CAT_META = NULL;
GstDebugCategory *GST_CAT_LOCKING = NULL;
+GstDebugCategory *GST_CAT_CONTEXT = NULL;
+GstDebugCategory *_priv_GST_CAT_PROTECTION = NULL;
#endif /* !defined(GST_DISABLE_GST_DEBUG) || !defined(GST_REMOVE_DISABLED) */
/* underscore is to prevent conflict with GST_CAT_DEBUG define */
GST_DEBUG_CATEGORY_STATIC (_GST_CAT_DEBUG);
-/* time of initialization, so we get useful debugging output times
- * FIXME: we use this in gstdebugutils.c, what about a function + macro to
- * get the running time: GST_DEBUG_RUNNING_TIME
- */
-GstClockTime _priv_gst_info_start_time;
-
#if 0
#if defined __sgi__
#include <rld_interface.h>
static void gst_debug_reset_threshold (gpointer category, gpointer unused);
static void gst_debug_reset_all_thresholds (void);
-#ifdef GST_USING_PRINTF_EXTENSION
-static int _gst_info_printf_extension_ptr (FILE * stream,
- const struct printf_info *info, const void *const *args);
-static int _gst_info_printf_extension_segment (FILE * stream,
- const struct printf_info *info, const void *const *args);
-#ifdef HAVE_REGISTER_PRINTF_SPECIFIER
-static int _gst_info_printf_extension_arginfo (const struct printf_info *info,
- size_t n, int *argtypes, int *size);
-#else
-static int _gst_info_printf_extension_arginfo (const struct printf_info *info,
- size_t n, int *argtypes);
-#endif
-#endif
-
struct _GstDebugMessage
{
gchar *message;
static GMutex __cat_mutex;
static GSList *__categories = NULL;
+static GstDebugCategory *_gst_debug_get_category_locked (const gchar * name);
+
+
/* all registered debug handlers */
typedef struct
{
static GMutex __log_func_mutex;
static GSList *__log_functions = NULL;
+/* whether to add the default log function in gst_init() */
+static gboolean add_default_log_func = TRUE;
+
#define PRETTY_TAGS_DEFAULT TRUE
static gboolean pretty_tags = PRETTY_TAGS_DEFAULT;
static volatile gint G_GNUC_MAY_ALIAS __default_level = GST_LEVEL_DEFAULT;
-static volatile gint G_GNUC_MAY_ALIAS __use_color = 1;
-
-static FILE *log_file;
+static volatile gint G_GNUC_MAY_ALIAS __use_color = GST_DEBUG_COLOR_MODE_ON;
/* FIXME: export this? */
gboolean
#ifdef HAVE_VALGRIND_VALGRIND_H
if (RUNNING_ON_VALGRIND) {
GST_CAT_INFO (GST_CAT_GST_INIT, "we're running inside valgrind");
- printf ("GStreamer has detected that it is running inside valgrind.\n");
- printf ("It might now take different code paths to ease debugging.\n");
- printf ("Of course, this may also lead to different bugs.\n");
in_valgrind = GST_VG_INSIDE;
} else {
GST_CAT_LOG (GST_CAT_GST_INIT, "not doing extra valgrind stuff");
return (in_valgrind == GST_VG_INSIDE);
}
+static gchar *
+_replace_pattern_in_gst_debug_file_name (gchar * name, const char *token,
+ guint val)
+{
+ gchar *token_start;
+ if ((token_start = strstr (name, token))) {
+ gsize token_len = strlen (token);
+ gchar *name_prefix = name;
+ gchar *name_suffix = token_start + token_len;
+ token_start[0] = '\0';
+ name = g_strdup_printf ("%s%u%s", name_prefix, val, name_suffix);
+ g_free (name_prefix);
+ }
+ return name;
+}
+
+static gchar *
+_priv_gst_debug_file_name (const gchar * env)
+{
+ gchar *name;
+
+ name = g_strdup (env);
+ name = _replace_pattern_in_gst_debug_file_name (name, "%p", getpid ());
+ name = _replace_pattern_in_gst_debug_file_name (name, "%r", g_random_int ());
+
+ return name;
+}
+
/* Initialize the debugging system */
void
_priv_gst_debug_init (void)
{
const gchar *env;
+ FILE *log_file;
- env = g_getenv ("GST_DEBUG_FILE");
- if (env != NULL && *env != '\0') {
- if (strcmp (env, "-") == 0) {
- log_file = stdout;
- } else {
- log_file = g_fopen (env, "w");
- if (log_file == NULL) {
- g_printerr ("Could not open log file '%s' for writing: %s\n", env,
- g_strerror (errno));
- log_file = stderr;
+ if (add_default_log_func) {
+ env = g_getenv ("GST_DEBUG_FILE");
+ if (env != NULL && *env != '\0') {
+ if (strcmp (env, "-") == 0) {
+ log_file = stdout;
+ } else {
+ gchar *name = _priv_gst_debug_file_name (env);
+ log_file = g_fopen (name, "w");
+ g_free (name);
+ if (log_file == NULL) {
+ g_printerr ("Could not open log file '%s' for writing: %s\n", env,
+ g_strerror (errno));
+ log_file = stderr;
+ }
}
+ } else {
+ log_file = stderr;
}
- } else {
- log_file = stderr;
- }
- /* get time we started for debugging messages */
- _priv_gst_info_start_time = gst_util_get_timestamp ();
+ gst_debug_add_log_function (gst_debug_log_default, log_file, NULL);
+ }
-#ifdef GST_USING_PRINTF_EXTENSION
-#ifdef HAVE_REGISTER_PRINTF_SPECIFIER
- register_printf_specifier (GST_PTR_FORMAT[0], _gst_info_printf_extension_ptr,
- _gst_info_printf_extension_arginfo);
- register_printf_specifier (GST_SEGMENT_FORMAT[0],
- _gst_info_printf_extension_segment, _gst_info_printf_extension_arginfo);
-#else
- register_printf_function (GST_PTR_FORMAT[0], _gst_info_printf_extension_ptr,
- _gst_info_printf_extension_arginfo);
- register_printf_function (GST_SEGMENT_FORMAT[0],
- _gst_info_printf_extension_segment, _gst_info_printf_extension_arginfo);
-#endif
-#endif
+ __gst_printf_pointer_extension_set_func
+ (gst_info_printf_pointer_extension_func);
/* do NOT use a single debug function before this line has been run */
GST_CAT_DEFAULT = _gst_debug_category_new ("default",
_GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG",
GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, "debugging subsystem");
- gst_debug_add_log_function (gst_debug_log_default, NULL, NULL);
-
/* FIXME: add descriptions here */
GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT",
GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
GST_CAT_ELEMENT_PADS = _gst_debug_category_new ("GST_ELEMENT_PADS",
GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
GST_CAT_PADS = _gst_debug_category_new ("GST_PADS",
- GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_RED, NULL);
+ GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_BLUE, NULL);
GST_CAT_PERFORMANCE = _gst_debug_category_new ("GST_PERFORMANCE",
GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
GST_CAT_PIPELINE = _gst_debug_category_new ("GST_PIPELINE",
_priv_GST_CAT_POLL = _gst_debug_category_new ("GST_POLL", 0, "poll");
GST_CAT_META = _gst_debug_category_new ("GST_META", 0, "meta");
GST_CAT_LOCKING = _gst_debug_category_new ("GST_LOCKING", 0, "locking");
-
+ GST_CAT_CONTEXT = _gst_debug_category_new ("GST_CONTEXT", 0, NULL);
+ _priv_GST_CAT_PROTECTION =
+ _gst_debug_category_new ("GST_PROTECTION", 0, "protection");
/* print out the valgrind message if we're in valgrind */
_priv_gst_in_valgrind ();
else if (strstr (env, "pretty_tags") || strstr (env, "pretty-tags"))
pretty_tags = TRUE;
}
+
+ if (g_getenv ("GST_DEBUG_NO_COLOR") != NULL)
+ gst_debug_set_color_mode (GST_DEBUG_COLOR_MODE_OFF);
+ env = g_getenv ("GST_DEBUG_COLOR_MODE");
+ if (env)
+ gst_debug_set_color_mode_from_string (env);
+
+ env = g_getenv ("GST_DEBUG");
+ if (env)
+ gst_debug_set_threshold_from_string (env, FALSE);
}
/* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */
* @function: the function that emitted the message
* @line: the line from that the message was emitted, usually __LINE__
* @object: (transfer none) (allow-none): the object this message relates to,
- * or NULL if none
+ * or %NULL if none
* @format: a printf style format string
* @...: optional arguments for the format
*
va_end (var_args);
}
-#ifdef _MSC_VER
/* based on g_basename(), which we can't use because it was deprecated */
static inline const gchar *
gst_path_basename (const gchar * file_name)
return file_name;
}
-#endif
/**
* gst_debug_log_valist:
* @function: the function that emitted the message
* @line: the line from that the message was emitted, usually __LINE__
* @object: (transfer none) (allow-none): the object this message relates to,
- * or NULL if none
+ * or %NULL if none
* @format: a printf style format string
* @args: optional arguments for the format
*
GSList *handler;
g_return_if_fail (category != NULL);
+
+ if (level > gst_debug_category_get_threshold (category))
+ return;
+
g_return_if_fail (file != NULL);
g_return_if_fail (function != NULL);
g_return_if_fail (format != NULL);
- /* The predefined macro __FILE__ is always the exact path given to the
- * compiler with MSVC, which may or may not be the basename. We work
- * around it at runtime to improve the readability. */
-#ifdef _MSC_VER
- file = gst_path_basename (file);
-#endif
-
message.message = NULL;
message.format = format;
G_VA_COPY (message.arguments, args);
* Gets the string representation of a #GstDebugMessage. This function is used
* in debug handlers to extract the message.
*
- * Returns: the string representation of a #GstDebugMessage.
+ * Returns: (nullable): the string representation of a #GstDebugMessage.
*/
const gchar *
gst_debug_message_get (GstDebugMessage * message)
{
if (message->message == NULL) {
- message->message = g_strdup_vprintf (message->format, message->arguments);
+ int len;
+
+ len = __gst_vasprintf (&message->message, message->format,
+ message->arguments);
+
+ if (len < 0)
+ message->message = NULL;
}
return message->message;
}
#define MAX_BUFFER_DUMP_STRING_LEN 100
/* structure_to_pretty_string:
- * @structure: a #GstStructure
+ * @str: a serialized #GstStructure
*
- * Converts @structure to a human-readable string representation. Basically
- * the same as gst_structure_to_string(), but if the structure contains large
- * buffers such as images the hex representation of those buffers will be
- * shortened so that the string remains readable.
+ * If the serialized structure contains large buffers such as images the hex
+ * representation of those buffers will be shortened so that the string remains
+ * readable.
*
- * Returns: a newly-allocated string. g_free() when no longer needed.
+ * Returns: the filtered string
*/
static gchar *
-structure_to_pretty_string (const GstStructure * s)
+prettify_structure_string (gchar * str)
{
- gchar *str, *pos, *end;
+ gchar *pos = str, *end;
- str = gst_structure_to_string (s);
- if (str == NULL)
- return NULL;
-
- pos = str;
while ((pos = strstr (pos, "(buffer)"))) {
guint count = 0;
if (count > MAX_BUFFER_DUMP_STRING_LEN) {
memcpy (pos + MAX_BUFFER_DUMP_STRING_LEN - 6, "..", 2);
memcpy (pos + MAX_BUFFER_DUMP_STRING_LEN - 4, pos + count - 4, 4);
- g_memmove (pos + MAX_BUFFER_DUMP_STRING_LEN, pos + count,
+ memmove (pos + MAX_BUFFER_DUMP_STRING_LEN, pos + count,
strlen (pos + count) + 1);
pos += MAX_BUFFER_DUMP_STRING_LEN;
}
static inline gchar *
gst_info_structure_to_string (const GstStructure * s)
{
- if (G_UNLIKELY (pretty_tags && s->name == GST_QUARK (TAGLIST)))
- return structure_to_pretty_string (s);
- else
- return gst_structure_to_string (s);
+ if (G_LIKELY (s)) {
+ gchar *str = gst_structure_to_string (s);
+ if (G_UNLIKELY (pretty_tags && s->name == GST_QUARK (TAGLIST)))
+ return prettify_structure_string (str);
+ else
+ return str;
+ }
+ return NULL;
+}
+
+static inline gchar *
+gst_info_describe_buffer (GstBuffer * buffer)
+{
+ const gchar *offset_str = "none";
+ const gchar *offset_end_str = "none";
+ gchar offset_buf[32], offset_end_buf[32];
+
+ if (GST_BUFFER_OFFSET_IS_VALID (buffer)) {
+ g_snprintf (offset_buf, sizeof (offset_buf), "%" G_GUINT64_FORMAT,
+ GST_BUFFER_OFFSET (buffer));
+ offset_str = offset_buf;
+ }
+ if (GST_BUFFER_OFFSET_END_IS_VALID (buffer)) {
+ g_snprintf (offset_end_buf, sizeof (offset_end_buf), "%" G_GUINT64_FORMAT,
+ GST_BUFFER_OFFSET_END (buffer));
+ offset_end_str = offset_end_buf;
+ }
+
+ return g_strdup_printf ("buffer: %p, pts %" GST_TIME_FORMAT ", dts %"
+ GST_TIME_FORMAT ", dur %" GST_TIME_FORMAT ", size %" G_GSIZE_FORMAT
+ ", offset %s, offset_end %s, flags 0x%x", buffer,
+ GST_TIME_ARGS (GST_BUFFER_PTS (buffer)),
+ GST_TIME_ARGS (GST_BUFFER_DTS (buffer)),
+ GST_TIME_ARGS (GST_BUFFER_DURATION (buffer)),
+ gst_buffer_get_size (buffer), offset_str, offset_end_str,
+ GST_BUFFER_FLAGS (buffer));
+}
+
+static inline gchar *
+gst_info_describe_buffer_list (GstBufferList * list)
+{
+ GstClockTime pts = GST_CLOCK_TIME_NONE;
+ GstClockTime dts = GST_CLOCK_TIME_NONE;
+ gsize total_size = 0;
+ guint n, i;
+
+ n = gst_buffer_list_length (list);
+ for (i = 0; i < n; ++i) {
+ GstBuffer *buf = gst_buffer_list_get (list, i);
+
+ if (i == 0) {
+ pts = GST_BUFFER_PTS (buf);
+ dts = GST_BUFFER_DTS (buf);
+ }
+
+ total_size += gst_buffer_get_size (buf);
+ }
+
+ return g_strdup_printf ("bufferlist: %p, %u buffers, pts %" GST_TIME_FORMAT
+ ", dts %" GST_TIME_FORMAT ", size %" G_GSIZE_FORMAT, list, n,
+ GST_TIME_ARGS (pts), GST_TIME_ARGS (dts), total_size);
+}
+
+static inline gchar *
+gst_info_describe_event (GstEvent * event)
+{
+ gchar *s, *ret;
+
+ s = gst_info_structure_to_string (gst_event_get_structure (event));
+ ret = g_strdup_printf ("%s event: %p, time %" GST_TIME_FORMAT
+ ", seq-num %d, %s", GST_EVENT_TYPE_NAME (event), event,
+ GST_TIME_ARGS (GST_EVENT_TIMESTAMP (event)), GST_EVENT_SEQNUM (event),
+ (s ? s : "(NULL)"));
+ g_free (s);
+ return ret;
+}
+
+static inline gchar *
+gst_info_describe_message (GstMessage * message)
+{
+ gchar *s, *ret;
+
+ s = gst_info_structure_to_string (gst_message_get_structure (message));
+ ret = g_strdup_printf ("%s message: %p, time %" GST_TIME_FORMAT
+ ", seq-num %d, element '%s', %s", GST_MESSAGE_TYPE_NAME (message),
+ message, GST_TIME_ARGS (GST_MESSAGE_TIMESTAMP (message)),
+ GST_MESSAGE_SEQNUM (message),
+ ((message->src) ? GST_ELEMENT_NAME (message->src) : "(NULL)"),
+ (s ? s : "(NULL)"));
+ g_free (s);
+ return ret;
+}
+
+static inline gchar *
+gst_info_describe_query (GstQuery * query)
+{
+ gchar *s, *ret;
+
+ s = gst_info_structure_to_string (gst_query_get_structure (query));
+ ret = g_strdup_printf ("%s query: %p, %s", GST_QUERY_TYPE_NAME (query),
+ query, (s ? s : "(NULL)"));
+ g_free (s);
+ return ret;
+}
+
+static inline gchar *
+gst_info_describe_stream (GstStream * stream)
+{
+ gchar *ret, *caps_str = NULL, *tags_str = NULL;
+ GstCaps *caps;
+ GstTagList *tags;
+
+ caps = gst_stream_get_caps (stream);
+ if (caps) {
+ caps_str = gst_caps_to_string (caps);
+ gst_caps_unref (caps);
+ }
+
+ tags = gst_stream_get_tags (stream);
+ if (tags) {
+ tags_str = gst_tag_list_to_string (tags);
+ gst_tag_list_unref (tags);
+ }
+
+ ret =
+ g_strdup_printf ("stream %s %p, ID %s, flags 0x%x, caps [%s], tags [%s]",
+ gst_stream_type_get_name (gst_stream_get_stream_type (stream)), stream,
+ gst_stream_get_stream_id (stream), gst_stream_get_stream_flags (stream),
+ caps_str ? caps_str : "", tags_str ? tags_str : "");
+
+ g_free (caps_str);
+ g_free (tags_str);
+
+ return ret;
+}
+
+static inline gchar *
+gst_info_describe_stream_collection (GstStreamCollection * collection)
+{
+ gchar *ret;
+ GString *streams_str;
+ guint i;
+
+ streams_str = g_string_new ("<");
+ for (i = 0; i < gst_stream_collection_get_size (collection); i++) {
+ GstStream *stream = gst_stream_collection_get_stream (collection, i);
+ gchar *s;
+
+ s = gst_info_describe_stream (stream);
+ g_string_append_printf (streams_str, " %s,", s);
+ g_free (s);
+ }
+ g_string_append (streams_str, " >");
+
+ ret = g_strdup_printf ("collection %p (%d streams) %s", collection,
+ gst_stream_collection_get_size (collection), streams_str->str);
+
+ g_string_free (streams_str, TRUE);
+ return ret;
}
static gchar *
if (object == NULL) {
return g_strdup ("(NULL)");
}
- if (*(GType *) ptr == GST_TYPE_CAPS) {
+ if (GST_IS_CAPS (ptr)) {
return gst_caps_to_string ((const GstCaps *) ptr);
}
- if (*(GType *) ptr == GST_TYPE_STRUCTURE) {
+ if (GST_IS_STRUCTURE (ptr)) {
return gst_info_structure_to_string ((const GstStructure *) ptr);
}
- if (*(GType *) ptr == GST_TYPE_TAG_LIST) {
- /* FIXME: want pretty tag list with long byte dumps removed.. */
- return gst_tag_list_to_string ((GstTagList *) ptr);
+ if (*(GType *) ptr == GST_TYPE_CAPS_FEATURES) {
+ return gst_caps_features_to_string ((const GstCapsFeatures *) ptr);
+ }
+ if (GST_IS_TAG_LIST (ptr)) {
+ gchar *str = gst_tag_list_to_string ((GstTagList *) ptr);
+ if (G_UNLIKELY (pretty_tags))
+ return prettify_structure_string (str);
+ else
+ return str;
}
if (*(GType *) ptr == GST_TYPE_DATE_TIME) {
return __gst_date_time_serialize ((GstDateTime *) ptr, TRUE);
}
if (GST_IS_BUFFER (ptr)) {
- GstBuffer *buf = (GstBuffer *) ptr;
- gchar *ret;
-
- ret =
- g_strdup_printf ("%p, pts %" GST_TIME_FORMAT ", dts %" GST_TIME_FORMAT
- ", dur %" GST_TIME_FORMAT ", size %" G_GSIZE_FORMAT ", offset %"
- G_GUINT64_FORMAT ", offset_end %" G_GUINT64_FORMAT, buf,
- GST_TIME_ARGS (GST_BUFFER_PTS (buf)),
- GST_TIME_ARGS (GST_BUFFER_DTS (buf)),
- GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), gst_buffer_get_size (buf),
- GST_BUFFER_OFFSET (buf), GST_BUFFER_OFFSET_END (buf));
- return ret;
+ return gst_info_describe_buffer (GST_BUFFER_CAST (ptr));
+ }
+ if (GST_IS_BUFFER_LIST (ptr)) {
+ return gst_info_describe_buffer_list (GST_BUFFER_LIST_CAST (ptr));
}
#ifdef USE_POISONING
if (*(guint32 *) ptr == 0xffffffff) {
return g_strdup_printf ("<poisoned@%p>", ptr);
}
#endif
- if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) {
- return g_strdup_printf ("<%s:%s>", GST_DEBUG_PAD_NAME (object));
+ if (GST_IS_MESSAGE (object)) {
+ return gst_info_describe_message (GST_MESSAGE_CAST (object));
}
- if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) {
- return g_strdup_printf ("<%s>", GST_OBJECT_NAME (object));
+ if (GST_IS_QUERY (object)) {
+ return gst_info_describe_query (GST_QUERY_CAST (object));
}
- if (G_IS_OBJECT (object)) {
- return g_strdup_printf ("<%s@%p>", G_OBJECT_TYPE_NAME (object), object);
+ if (GST_IS_EVENT (object)) {
+ return gst_info_describe_event (GST_EVENT_CAST (object));
}
- if (GST_IS_MESSAGE (object)) {
- GstMessage *msg = GST_MESSAGE_CAST (object);
+ if (GST_IS_CONTEXT (object)) {
+ GstContext *context = GST_CONTEXT_CAST (object);
gchar *s, *ret;
+ const gchar *type;
const GstStructure *structure;
- structure = gst_message_get_structure (msg);
+ type = gst_context_get_context_type (context);
+ structure = gst_context_get_structure (context);
- if (structure) {
- s = gst_info_structure_to_string (structure);
- } else {
- s = g_strdup ("(NULL)");
- }
+ s = gst_info_structure_to_string (structure);
- ret = g_strdup_printf ("%s message from element '%s': %s",
- GST_MESSAGE_TYPE_NAME (msg), (msg->src != NULL) ?
- GST_ELEMENT_NAME (msg->src) : "(NULL)", s);
+ ret = g_strdup_printf ("context '%s'='%s'", type, s);
g_free (s);
return ret;
}
- if (GST_IS_QUERY (object)) {
- GstQuery *query = GST_QUERY_CAST (object);
- const GstStructure *structure;
-
- structure = gst_query_get_structure (query);
-
- if (structure) {
- return gst_info_structure_to_string (structure);
- } else {
- const gchar *query_type_name;
-
- query_type_name = gst_query_type_get_name (query->type);
- if (G_LIKELY (query_type_name != NULL)) {
- return g_strdup_printf ("%s query", query_type_name);
- } else {
- return g_strdup_printf ("query of unknown type %d", query->type);
- }
- }
+ if (GST_IS_STREAM (object)) {
+ return gst_info_describe_stream (GST_STREAM_CAST (object));
}
- if (GST_IS_EVENT (object)) {
- GstEvent *event = GST_EVENT_CAST (object);
- gchar *s, *ret;
- GstStructure *structure;
-
- structure = (GstStructure *) gst_event_get_structure (event);
- if (structure) {
- s = gst_info_structure_to_string (structure);
- } else {
- s = g_strdup ("(NULL)");
- }
-
- ret = g_strdup_printf ("%s event at time %"
- GST_TIME_FORMAT ": %s",
- GST_EVENT_TYPE_NAME (event), GST_TIME_ARGS (event->timestamp), s);
- g_free (s);
- return ret;
+ if (GST_IS_STREAM_COLLECTION (object)) {
+ return
+ gst_info_describe_stream_collection (GST_STREAM_COLLECTION_CAST
+ (object));
+ }
+ if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) {
+ return g_strdup_printf ("<%s:%s>", GST_DEBUG_PAD_NAME (object));
+ }
+ if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) {
+ return g_strdup_printf ("<%s>", GST_OBJECT_NAME (object));
+ }
+ if (G_IS_OBJECT (object)) {
+ return g_strdup_printf ("<%s@%p>", G_OBJECT_TYPE_NAME (object), object);
}
return g_strdup_printf ("%p", ptr);
}
-#ifdef GST_USING_PRINTF_EXTENSION
-
static gchar *
gst_debug_print_segment (gpointer ptr)
{
}
case GST_FORMAT_TIME:{
return g_strdup_printf ("time segment start=%" GST_TIME_FORMAT
- ", stop=%" GST_TIME_FORMAT ", rate=%f, applied_rate=%f"
- ", flags=0x%02x, time=%" GST_TIME_FORMAT ", base=%" GST_TIME_FORMAT
- ", position %" GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT,
- GST_TIME_ARGS (segment->start), GST_TIME_ARGS (segment->stop),
+ ", offset=%" GST_TIME_FORMAT ", stop=%" GST_TIME_FORMAT
+ ", rate=%f, applied_rate=%f" ", flags=0x%02x, time=%" GST_TIME_FORMAT
+ ", base=%" GST_TIME_FORMAT ", position %" GST_TIME_FORMAT
+ ", duration %" GST_TIME_FORMAT, GST_TIME_ARGS (segment->start),
+ GST_TIME_ARGS (segment->offset), GST_TIME_ARGS (segment->stop),
segment->rate, segment->applied_rate, (guint) segment->flags,
GST_TIME_ARGS (segment->time), GST_TIME_ARGS (segment->base),
GST_TIME_ARGS (segment->position), GST_TIME_ARGS (segment->duration));
if (G_UNLIKELY (format_name == NULL))
format_name = "(UNKNOWN FORMAT)";
return g_strdup_printf ("%s segment start=%" G_GINT64_FORMAT
- ", stop=%" G_GINT64_FORMAT ", rate=%f, applied_rate=%f"
- ", flags=0x%02x, time=%" G_GINT64_FORMAT ", base=%" G_GINT64_FORMAT
- ", position %" G_GINT64_FORMAT ", duration %" G_GINT64_FORMAT,
- format_name, segment->start, segment->stop, segment->rate,
- segment->applied_rate, (guint) segment->flags,
- segment->time, segment->base, segment->position, segment->duration);
+ ", offset=%" G_GINT64_FORMAT ", stop=%" G_GINT64_FORMAT
+ ", rate=%f, applied_rate=%f" ", flags=0x%02x, time=%" G_GINT64_FORMAT
+ ", base=%" G_GINT64_FORMAT ", position %" G_GINT64_FORMAT
+ ", duration %" G_GINT64_FORMAT, format_name, segment->start,
+ segment->offset, segment->stop, segment->rate, segment->applied_rate,
+ (guint) segment->flags, segment->time, segment->base,
+ segment->position, segment->duration);
}
}
}
-#endif /* GST_USING_PRINTF_EXTENSION */
+static char *
+gst_info_printf_pointer_extension_func (const char *format, void *ptr)
+{
+ char *s = NULL;
+
+ if (format[0] == 'p' && format[1] == '\a') {
+ switch (format[2]) {
+ case 'A': /* GST_PTR_FORMAT */
+ s = gst_debug_print_object (ptr);
+ break;
+ case 'B': /* GST_SEGMENT_FORMAT */
+ s = gst_debug_print_segment (ptr);
+ break;
+ case 'a': /* GST_WRAPPED_PTR_FORMAT */
+ s = priv_gst_string_take_and_wrap (gst_debug_print_object (ptr));
+ break;
+ default:
+ /* must have been compiled against a newer version with an extension
+ * we don't known about yet - just ignore and fallback to %p below */
+ break;
+ }
+ }
+ if (s == NULL)
+ s = g_strdup_printf ("%p", ptr);
+
+ return s;
+}
/**
* gst_debug_construct_term_color:
};
/* we draw black as white, as cmd.exe can only have black bg */
- if (colorinfo == 0) {
- return ansi_to_win_fg[7];
+ if ((colorinfo & (GST_DEBUG_FG_MASK | GST_DEBUG_BG_MASK)) == 0) {
+ color = ansi_to_win_fg[7];
+ }
+ if (colorinfo & GST_DEBUG_UNDERLINE) {
+ color |= BACKGROUND_INTENSITY;
}
-
if (colorinfo & GST_DEBUG_BOLD) {
color |= FOREGROUND_INTENSITY;
}
#define CAT_FMT "%20s %s:%d:%s:%s"
#ifdef G_OS_WIN32
-static const guchar levelcolormap[GST_LEVEL_COUNT] = {
+static const guchar levelcolormap_w32[GST_LEVEL_COUNT] = {
/* GST_LEVEL_NONE */
FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE,
/* GST_LEVEL_ERROR */
FOREGROUND_BLUE, FOREGROUND_RED | FOREGROUND_BLUE,
FOREGROUND_GREEN | FOREGROUND_BLUE,
};
-#else
+#endif /* G_OS_WIN32 */
static const gchar *levelcolormap[GST_LEVEL_COUNT] = {
"\033[37m", /* GST_LEVEL_NONE */
"\033[31;01m", /* GST_LEVEL_ERROR */
"\033[37m", /* placeholder for log level 8 */
"\033[37m" /* GST_LEVEL_MEMDUMP */
};
-#endif
/**
* gst_debug_log_default:
* @line: the line from that the message was emitted, usually __LINE__
* @message: the actual message
* @object: (transfer none) (allow-none): the object this message relates to,
- * or NULL if none
- * @unused: an unused variable, reserved for some user_data.
+ * or %NULL if none
+ * @user_data: the FILE* to log to
*
* The default logging handler used by GStreamer. Logging functions get called
- * whenever a macro like GST_DEBUG or similar is used. This function outputs the
- * message and additional info to stderr (or the log file specified via the
- * GST_DEBUG_FILE environment variable).
+ * whenever a macro like GST_DEBUG or similar is used. By default this function
+ * is setup to output the message and additional info to stderr (or the log file
+ * specified via the GST_DEBUG_FILE environment variable) as received via
+ * @user_data.
*
* You can add other handlers by using gst_debug_add_log_function().
* And you can remove this handler by calling
void
gst_debug_log_default (GstDebugCategory * category, GstDebugLevel level,
const gchar * file, const gchar * function, gint line,
- GObject * object, GstDebugMessage * message, gpointer unused)
+ GObject * object, GstDebugMessage * message, gpointer user_data)
{
gint pid;
GstClockTime elapsed;
gchar *obj = NULL;
- gboolean is_colored;
-
- if (level > gst_debug_category_get_threshold (category))
- return;
+ GstDebugColorMode color_mode;
+ const gchar *message_str;
+ FILE *log_file = user_data ? user_data : stderr;
+ gchar c;
+
+ /* Get message string first because printing it might call into our custom
+ * printf format extension mechanism which in turn might log something, e.g.
+ * from inside gst_structure_to_string() when something can't be serialised.
+ * This means we either need to do this outside of any critical section or
+ * use a recursive lock instead. As we always need the message string in all
+ * code paths, we might just as well get it here first thing and outside of
+ * the win_print_mutex critical section. */
+ message_str = gst_debug_message_get (message);
+
+ /* __FILE__ might be a file name or an absolute path or a
+ * relative path, irrespective of the exact compiler used,
+ * in which case we want to shorten it to the filename for
+ * readability. */
+ c = file[0];
+ if (c == '.' || c == '/' || c == '\\' || (c != '\0' && file[1] == ':')) {
+ file = gst_path_basename (file);
+ }
pid = getpid ();
- is_colored = gst_debug_is_colored ();
+ color_mode = gst_debug_get_color_mode ();
if (object) {
obj = gst_debug_print_object (object);
} else {
- obj = g_strdup ("");
+ obj = (gchar *) "";
}
- elapsed = GST_CLOCK_DIFF (_priv_gst_info_start_time,
- gst_util_get_timestamp ());
-
- if (is_colored) {
-#ifndef G_OS_WIN32
- /* colors, non-windows */
- gchar *color = NULL;
- const gchar *clear;
- gchar pidcolor[10];
- const gchar *levelcolor;
-
- color = gst_debug_construct_term_color (gst_debug_category_get_color
- (category));
- clear = "\033[00m";
- g_sprintf (pidcolor, "\033[3%1dm", pid % 6 + 31);
- levelcolor = levelcolormap[level];
+ elapsed = GST_CLOCK_DIFF (_priv_gst_start_time, gst_util_get_timestamp ());
-#define PRINT_FMT " %s"PID_FMT"%s "PTR_FMT" %s%s%s %s"CAT_FMT"%s %s\n"
- fprintf (log_file, "%" GST_TIME_FORMAT PRINT_FMT, GST_TIME_ARGS (elapsed),
- pidcolor, pid, clear, g_thread_self (), levelcolor,
- gst_debug_level_get_name (level), clear, color,
- gst_debug_category_get_name (category), file, line, function, obj,
- clear, gst_debug_message_get (message));
- fflush (log_file);
-#undef PRINT_FMT
- g_free (color);
-#else
- /* colors, windows. We take a lock to keep colors and content together.
+ if (color_mode != GST_DEBUG_COLOR_MODE_OFF) {
+#ifdef G_OS_WIN32
+ /* We take a lock to keep colors and content together.
* Maybe there is a better way but for now this will do the right
* thing. */
static GMutex win_print_mutex;
- const gint clear = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
+ g_mutex_lock (&win_print_mutex);
+ if (color_mode == GST_DEBUG_COLOR_MODE_UNIX) {
+#endif
+ /* colors, non-windows */
+ gchar *color = NULL;
+ const gchar *clear;
+ gchar pidcolor[10];
+ const gchar *levelcolor;
+
+ color = gst_debug_construct_term_color (gst_debug_category_get_color
+ (category));
+ clear = "\033[00m";
+ g_sprintf (pidcolor, "\033[3%1dm", pid % 6 + 31);
+ levelcolor = levelcolormap[level];
+
+#define PRINT_FMT " %s"PID_FMT"%s "PTR_FMT" %s%s%s %s"CAT_FMT"%s %s\n"
+ fprintf (log_file, "%" GST_TIME_FORMAT PRINT_FMT, GST_TIME_ARGS (elapsed),
+ pidcolor, pid, clear, g_thread_self (), levelcolor,
+ gst_debug_level_get_name (level), clear, color,
+ gst_debug_category_get_name (category), file, line, function, obj,
+ clear, message_str);
+ fflush (log_file);
+#undef PRINT_FMT
+ g_free (color);
+#ifdef G_OS_WIN32
+ } else {
+ /* colors, windows. */
+ const gint clear = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
#define SET_COLOR(c) G_STMT_START { \
if (log_file == stderr) \
SetConsoleTextAttribute (GetStdHandle (STD_ERROR_HANDLE), (c)); \
} G_STMT_END
- g_mutex_lock (&win_print_mutex);
- /* timestamp */
- fprintf (log_file, "%" GST_TIME_FORMAT " ", GST_TIME_ARGS (elapsed));
- fflush (log_file);
- /* pid */
- SET_COLOR (available_colors[pid % G_N_ELEMENTS (available_colors)]);
- fprintf (log_file, PID_FMT, pid);
- fflush (log_file);
- /* thread */
- SET_COLOR (clear);
- fprintf (log_file, " " PTR_FMT " ", g_thread_self ());
- fflush (log_file);
- /* level */
- SET_COLOR (levelcolormap[level]);
- fprintf (log_file, "%s ", gst_debug_level_get_name (level));
- fflush (log_file);
- /* category */
- SET_COLOR (gst_debug_construct_win_color (gst_debug_category_get_color
- (category)));
- fprintf (log_file, CAT_FMT, gst_debug_category_get_name (category),
- file, line, function, obj);
- fflush (log_file);
- /* message */
- SET_COLOR (clear);
- fprintf (log_file, " %s\n", gst_debug_message_get (message));
- fflush (log_file);
+ /* timestamp */
+ fprintf (log_file, "%" GST_TIME_FORMAT " ", GST_TIME_ARGS (elapsed));
+ fflush (log_file);
+ /* pid */
+ SET_COLOR (available_colors[pid % G_N_ELEMENTS (available_colors)]);
+ fprintf (log_file, PID_FMT, pid);
+ fflush (log_file);
+ /* thread */
+ SET_COLOR (clear);
+ fprintf (log_file, " " PTR_FMT " ", g_thread_self ());
+ fflush (log_file);
+ /* level */
+ SET_COLOR (levelcolormap_w32[level]);
+ fprintf (log_file, "%s ", gst_debug_level_get_name (level));
+ fflush (log_file);
+ /* category */
+ SET_COLOR (gst_debug_construct_win_color (gst_debug_category_get_color
+ (category)));
+ fprintf (log_file, CAT_FMT, gst_debug_category_get_name (category),
+ file, line, function, obj);
+ fflush (log_file);
+ /* message */
+ SET_COLOR (clear);
+ fprintf (log_file, " %s\n", message_str);
+ fflush (log_file);
+ }
g_mutex_unlock (&win_print_mutex);
#endif
} else {
fprintf (log_file, "%" GST_TIME_FORMAT PRINT_FMT, GST_TIME_ARGS (elapsed),
pid, g_thread_self (), gst_debug_level_get_name (level),
gst_debug_category_get_name (category), file, line, function, obj,
- gst_debug_message_get (message));
+ message_str);
fflush (log_file);
#undef PRINT_FMT
}
- g_free (obj);
+ if (object != NULL)
+ g_free (obj);
}
/**
/**
* gst_debug_remove_log_function:
- * @func: (scope call): the log function to remove
+ * @func: (scope call) (allow-none): the log function to remove, or %NULL to
+ * remove the default log function
*
* Removes all registered instances of the given logging functions.
*
removals =
gst_debug_remove_with_compare_func
(gst_debug_compare_log_function_by_func, (gpointer) func);
- if (gst_is_initialized ())
+
+ if (gst_is_initialized ()) {
GST_DEBUG ("removed log function %p %d times from log function list", func,
removals);
+ } else {
+ /* If the default log function is removed before gst_init() was called,
+ * set a flag so we don't add it in gst_init() later */
+ if (func == gst_debug_log_default) {
+ add_default_log_func = FALSE;
+ ++removals;
+ }
+ }
return removals;
}
* @colored: Whether to use colored output or not
*
* Sets or unsets the use of coloured debugging output.
+ * Same as gst_debug_set_color_mode () with the argument being
+ * being GST_DEBUG_COLOR_MODE_ON or GST_DEBUG_COLOR_MODE_OFF.
*
* This function may be called before gst_init().
*/
void
gst_debug_set_colored (gboolean colored)
{
- g_atomic_int_set (&__use_color, (gint) colored);
+ GstDebugColorMode new_mode;
+ new_mode = colored ? GST_DEBUG_COLOR_MODE_ON : GST_DEBUG_COLOR_MODE_OFF;
+ g_atomic_int_set (&__use_color, (gint) new_mode);
+}
+
+/**
+ * gst_debug_set_color_mode:
+ * @mode: The coloring mode for debug output. See @GstDebugColorMode.
+ *
+ * Changes the coloring mode for debug output.
+ *
+ * This function may be called before gst_init().
+ *
+ * Since: 1.2
+ */
+void
+gst_debug_set_color_mode (GstDebugColorMode mode)
+{
+ g_atomic_int_set (&__use_color, mode);
+}
+
+/**
+ * gst_debug_set_color_mode_from_string:
+ * @mode: The coloring mode for debug output. One of the following:
+ * "on", "auto", "off", "disable", "unix".
+ *
+ * Changes the coloring mode for debug output.
+ *
+ * This function may be called before gst_init().
+ *
+ * Since: 1.2
+ */
+void
+gst_debug_set_color_mode_from_string (const gchar * mode)
+{
+ if ((strcmp (mode, "on") == 0) || (strcmp (mode, "auto") == 0))
+ gst_debug_set_color_mode (GST_DEBUG_COLOR_MODE_ON);
+ else if ((strcmp (mode, "off") == 0) || (strcmp (mode, "disable") == 0))
+ gst_debug_set_color_mode (GST_DEBUG_COLOR_MODE_OFF);
+ else if (strcmp (mode, "unix") == 0)
+ gst_debug_set_color_mode (GST_DEBUG_COLOR_MODE_UNIX);
}
/**
*
* Checks if the debugging output should be colored.
*
- * Returns: TRUE, if the debug output should be colored.
+ * Returns: %TRUE, if the debug output should be colored.
*/
gboolean
gst_debug_is_colored (void)
{
- return (gboolean) g_atomic_int_get (&__use_color);
+ GstDebugColorMode mode = g_atomic_int_get (&__use_color);
+ return (mode == GST_DEBUG_COLOR_MODE_UNIX || mode == GST_DEBUG_COLOR_MODE_ON);
+}
+
+/**
+ * gst_debug_get_color_mode:
+ *
+ * Changes the coloring mode for debug output.
+ *
+ * Returns: see @GstDebugColorMode for possible values.
+ *
+ * Since: 1.2
+ */
+GstDebugColorMode
+gst_debug_get_color_mode (void)
+{
+ return g_atomic_int_get (&__use_color);
}
/**
* If activated, debugging messages are sent to the debugging
* handlers.
* It makes sense to deactivate it for speed issues.
- * <note><para>This function is not threadsafe. It makes sense to only call it
- * during initialization.</para></note>
+ * > This function is not threadsafe. It makes sense to only call it
+ * during initialization.
*/
void
gst_debug_set_active (gboolean active)
*
* Checks if debugging output is activated.
*
- * Returns: TRUE, if debugging is activated
+ * Returns: %TRUE, if debugging is activated
*/
gboolean
gst_debug_is_active (void)
return (GstDebugLevel) g_atomic_int_get (&__default_level);
}
+static gboolean
+gst_debug_apply_entry (GstDebugCategory * cat, LevelNameEntry * entry)
+{
+ if (!g_pattern_match_string (entry->pat, cat->name))
+ return FALSE;
+
+ if (gst_is_initialized ())
+ GST_LOG ("category %s matches pattern %p - gets set to level %d",
+ cat->name, entry->pat, entry->level);
+
+ gst_debug_category_set_threshold (cat, entry->level);
+ return TRUE;
+}
+
static void
gst_debug_reset_threshold (gpointer category, gpointer unused)
{
GSList *walk;
g_mutex_lock (&__level_name_mutex);
- walk = __level_name;
- while (walk) {
- LevelNameEntry *entry = walk->data;
- walk = g_slist_next (walk);
- if (g_pattern_match_string (entry->pat, cat->name)) {
- if (gst_is_initialized ())
- GST_LOG ("category %s matches pattern %p - gets set to level %d",
- cat->name, entry->pat, entry->level);
- gst_debug_category_set_threshold (cat, entry->level);
- goto exit;
- }
+ for (walk = __level_name; walk != NULL; walk = walk->next) {
+ if (gst_debug_apply_entry (cat, walk->data))
+ break;
}
- gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ());
-exit:
g_mutex_unlock (&__level_name_mutex);
+
+ if (walk == NULL)
+ gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ());
}
static void
GstDebugCategory *cat = (GstDebugCategory *) data;
LevelNameEntry *entry = (LevelNameEntry *) user_data;
- if (g_pattern_match_string (entry->pat, cat->name)) {
- if (gst_is_initialized ())
- GST_LOG ("category %s matches pattern %p - gets set to level %d",
- cat->name, entry->pat, entry->level);
- gst_debug_category_set_threshold (cat, entry->level);
- }
+ gst_debug_apply_entry (cat, entry);
}
/**
g_slice_free (LevelNameEntry, entry);
g_slist_free_1 (walk);
walk = __level_name;
+ } else {
+ walk = g_slist_next (walk);
}
}
g_mutex_unlock (&__level_name_mutex);
_gst_debug_category_new (const gchar * name, guint color,
const gchar * description)
{
- GstDebugCategory *cat;
+ GstDebugCategory *cat, *catfound;
g_return_val_if_fail (name != NULL, NULL);
/* add to category list */
g_mutex_lock (&__cat_mutex);
- __categories = g_slist_prepend (__categories, cat);
+ catfound = _gst_debug_get_category_locked (name);
+ if (catfound) {
+ g_free ((gpointer) cat->name);
+ g_free ((gpointer) cat->description);
+ g_slice_free (GstDebugCategory, cat);
+ cat = catfound;
+ } else {
+ __categories = g_slist_prepend (__categories, cat);
+ }
g_mutex_unlock (&__cat_mutex);
return cat;
* Sets the threshold of the category to the given level. Debug information will
* only be output if the threshold is lower or equal to the level of the
* debugging message.
- * <note><para>
- * Do not use this function in production code, because other functions may
- * change the threshold of categories as side effect. It is however a nice
- * function to use when debugging (even from gdb).
- * </para></note>
+ * > Do not use this function in production code, because other functions may
+ * > change the threshold of categories as side effect. It is however a nice
+ * > function to use when debugging (even from gdb).
*/
void
gst_debug_category_set_threshold (GstDebugCategory * category,
return ret;
}
-GstDebugCategory *
-_gst_debug_get_category (const gchar * name)
+static GstDebugCategory *
+_gst_debug_get_category_locked (const gchar * name)
{
GstDebugCategory *ret = NULL;
GSList *node;
return NULL;
}
-static gboolean
-parse_debug_category (gchar * str, const gchar ** category)
+GstDebugCategory *
+_gst_debug_get_category (const gchar * name)
{
- if (!str)
- return FALSE;
-
- /* works in place */
- g_strstrip (str);
+ GstDebugCategory *ret;
+
+ g_mutex_lock (&__cat_mutex);
+ ret = _gst_debug_get_category_locked (name);
+ g_mutex_unlock (&__cat_mutex);
+
+ return ret;
+}
+
+static gboolean
+parse_debug_category (gchar * str, const gchar ** category)
+{
+ if (!str)
+ return FALSE;
+
+ /* works in place */
+ g_strstrip (str);
if (str[0] != '\0') {
*category = str;
/* works in place */
g_strstrip (str);
- if (str[0] != '\0' && str[1] == '\0'
- && str[0] >= '0' && str[0] < '0' + GST_LEVEL_COUNT) {
- *level = (GstDebugLevel) (str[0] - '0');
+ if (g_ascii_isdigit (str[0])) {
+ unsigned long l;
+ char *endptr;
+ l = strtoul (str, &endptr, 10);
+ if (endptr > str && endptr[0] == 0) {
+ *level = (GstDebugLevel) l;
+ } else {
+ return FALSE;
+ }
} else if (strcmp (str, "ERROR") == 0) {
*level = GST_LEVEL_ERROR;
} else if (strncmp (str, "WARN", 4) == 0) {
* the order matters when you use wild cards, e.g. "foosrc:6,*src:3,*:2" sets
* everything to log level 2.
*
- * Since: 1.2.0
+ * Since: 1.2
*/
void
gst_debug_set_threshold_from_string (const gchar * list, gboolean reset)
g_assert (list);
- if (reset == TRUE)
- gst_debug_set_default_threshold (0);
+ if (reset)
+ gst_debug_set_default_threshold (GST_LEVEL_DEFAULT);
split = g_strsplit (list, ",", 0);
const gchar *category;
if (parse_debug_category (values[0], &category)
- && parse_debug_level (values[1], &level))
+ && parse_debug_level (values[1], &level)) {
gst_debug_set_threshold_for_name (category, level);
+
+ /* bump min-level anyway to allow the category to be registered in the
+ * future still */
+ if (level > _gst_debug_min) {
+ _gst_debug_min = level;
+ }
+ }
}
g_strfreev (values);
* the name */
#ifdef HAVE_DLADDR
if (dladdr ((gpointer) func, &dl_info) && dl_info.dli_sname) {
- gchar *name = g_strdup (dl_info.dli_sname);
+ const gchar *name = g_intern_string (dl_info.dli_sname);
_gst_debug_register_funcptr (func, name);
return name;
#endif
{
gchar *name = g_strdup_printf ("%p", (gpointer) func);
+ const gchar *iname = g_intern_string (name);
- _gst_debug_register_funcptr (func, name);
- return name;
+ g_free (name);
+
+ _gst_debug_register_funcptr (func, iname);
+ return iname;
}
}
if (!__gst_function_pointers)
__gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal);
- if (!g_hash_table_lookup (__gst_function_pointers, ptr))
+ if (!g_hash_table_lookup (__gst_function_pointers, ptr)) {
g_hash_table_insert (__gst_function_pointers, ptr, (gpointer) ptrname);
+ }
g_mutex_unlock (&__dbg_functions_mutex);
}
-/*** PRINTF EXTENSIONS ********************************************************/
-
-#ifdef GST_USING_PRINTF_EXTENSION
-static int
-_gst_info_printf_extension_ptr (FILE * stream, const struct printf_info *info,
- const void *const *args)
-{
- char *buffer;
- int len;
- void *ptr;
-
- buffer = NULL;
- ptr = *(void **) args[0];
-
- buffer = gst_debug_print_object (ptr);
- len = fprintf (stream, "%*s", (info->left ? -info->width : info->width),
- buffer);
-
- g_free (buffer);
- return len;
-}
-
-static int
-_gst_info_printf_extension_segment (FILE * stream,
- const struct printf_info *info, const void *const *args)
+void
+_priv_gst_debug_cleanup (void)
{
- char *buffer;
- int len;
- void *ptr;
-
- buffer = NULL;
- ptr = *(void **) args[0];
-
- buffer = gst_debug_print_segment (ptr);
- len = fprintf (stream, "%*s", (info->left ? -info->width : info->width),
- buffer);
-
- g_free (buffer);
- return len;
-}
+ g_mutex_lock (&__dbg_functions_mutex);
-#ifdef HAVE_REGISTER_PRINTF_SPECIFIER
-static int
-_gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n,
- int *argtypes, int *size)
-#else
-static int
-_gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n,
- int *argtypes)
-#endif
-{
- if (n > 0) {
- argtypes[0] = PA_POINTER;
-#ifdef HAVE_REGISTER_PRINTF_SPECIFIER
- *size = sizeof (gpointer);
-#endif
+ if (__gst_function_pointers) {
+ g_hash_table_unref (__gst_function_pointers);
+ __gst_function_pointers = NULL;
}
- return 1;
+
+ g_mutex_unlock (&__dbg_functions_mutex);
}
-#endif /* GST_USING_PRINTF_EXTENSION */
static void
gst_info_dump_mem_line (gchar * linebuf, gsize linebuf_size,
}
void
+_priv_gst_debug_cleanup (void)
+{
+}
+
+void
gst_debug_log (GstDebugCategory * category, GstDebugLevel level,
const gchar * file, const gchar * function, gint line,
GObject * object, const gchar * format, ...)
{
}
+void
+gst_debug_set_color_mode (GstDebugColorMode mode)
+{
+}
+
+void
+gst_debug_set_color_mode_from_string (const gchar * str)
+{
+}
+
gboolean
gst_debug_is_colored (void)
{
return FALSE;
}
+GstDebugColorMode
+gst_debug_get_color_mode (void)
+{
+ return GST_DEBUG_COLOR_MODE_OFF;
+}
+
void
-gst_debug_set_threshold_from_string (const gchar * list)
+gst_debug_set_threshold_from_string (const gchar * list, gboolean reset)
{
}
#endif /* GST_REMOVE_DISABLED */
#endif /* GST_DISABLE_GST_DEBUG */
+/* Need this for _gst_element_error_printf even if GST_REMOVE_DISABLED is set:
+ * fallback function that cleans up the format string and replaces all pointer
+ * extension formats with plain %p. */
+#ifdef GST_DISABLE_GST_DEBUG
+int
+__gst_info_fallback_vasprintf (char **result, char const *format, va_list args)
+{
+ gchar *clean_format, *c;
+ gsize len;
+
+ if (format == NULL)
+ return -1;
+
+ clean_format = g_strdup (format);
+ c = clean_format;
+ while ((c = strstr (c, "%p\a"))) {
+ if (c[3] < 'A' || c[3] > 'Z') {
+ c += 3;
+ continue;
+ }
+ len = strlen (c + 4);
+ memmove (c + 2, c + 4, len + 1);
+ c += 2;
+ }
+ while ((c = strstr (clean_format, "%P"))) /* old GST_PTR_FORMAT */
+ c[1] = 'p';
+ while ((c = strstr (clean_format, "%Q"))) /* old GST_SEGMENT_FORMAT */
+ c[1] = 'p';
+
+ len = g_vasprintf (result, clean_format, args);
+
+ g_free (clean_format);
+
+ if (*result == NULL)
+ return -1;
+
+ return len;
+}
+#endif
+
+/**
+ * gst_info_vasprintf:
+ * @result: (out): the resulting string
+ * @format: a printf style format string
+ * @args: the va_list of printf arguments for @format
+ *
+ * Allocates and fills a string large enough (including the terminating null
+ * byte) to hold the specified printf style @format and @args.
+ *
+ * This function deals with the GStreamer specific printf specifiers
+ * #GST_PTR_FORMAT and #GST_SEGMENT_FORMAT. If you do not have these specifiers
+ * in your @format string, you do not need to use this function and can use
+ * alternatives such as g_vasprintf().
+ *
+ * Free @result with g_free().
+ *
+ * Returns: the length of the string allocated into @result or -1 on any error
+ *
+ * Since: 1.8
+ */
+gint
+gst_info_vasprintf (gchar ** result, const gchar * format, va_list args)
+{
+ /* This will fallback to __gst_info_fallback_vasprintf() via a #define in
+ * gst_private.h if the debug system is disabled which will remove the gst
+ * specific printf format specifiers */
+ return __gst_vasprintf (result, format, args);
+}
+
+/**
+ * gst_info_strdup_vprintf:
+ * @format: a printf style format string
+ * @args: the va_list of printf arguments for @format
+ *
+ * Allocates, fills and returns a null terminated string from the printf style
+ * @format string and @args.
+ *
+ * See gst_info_vasprintf() for when this function is required.
+ *
+ * Free with g_free().
+ *
+ * Returns: (nullable): a newly allocated null terminated string or %NULL on any error
+ *
+ * Since: 1.8
+ */
+gchar *
+gst_info_strdup_vprintf (const gchar * format, va_list args)
+{
+ gchar *ret;
+
+ if (gst_info_vasprintf (&ret, format, args) < 0)
+ ret = NULL;
-#ifdef GST_ENABLE_FUNC_INSTRUMENTATION
-/* FIXME make this thread specific */
-static GSList *stack_trace = NULL;
+ return ret;
+}
+/**
+ * gst_info_strdup_printf:
+ * @format: a printf style format string
+ * @...: the printf arguments for @format
+ *
+ * Allocates, fills and returns a 0-terminated string from the printf style
+ * @format string and corresponding arguments.
+ *
+ * See gst_info_vasprintf() for when this function is required.
+ *
+ * Free with g_free().
+ *
+ * Returns: (nullable): a newly allocated null terminated string or %NULL on any error
+ *
+ * Since: 1.8
+ */
+gchar *
+gst_info_strdup_printf (const gchar * format, ...)
+{
+ gchar *ret;
+ va_list args;
+
+ va_start (args, format);
+ ret = gst_info_strdup_vprintf (format, args);
+ va_end (args);
+
+ return ret;
+}
+
+/**
+ * gst_print:
+ * @format: a printf style format string
+ * @...: the printf arguments for @format
+ *
+ * Outputs a formatted message via the GLib print handler. The default print
+ * handler simply outputs the message to stdout.
+ *
+ * This function will not append a new-line character at the end, unlike
+ * gst_println() which will.
+ *
+ * All strings must be in ASCII or UTF-8 encoding.
+ *
+ * This function differs from g_print() in that it supports all the additional
+ * printf specifiers that are supported by GStreamer's debug logging system,
+ * such as #GST_PTR_FORMAT and #GST_SEGMENT_FORMAT.
+ *
+ * This function is primarily for printing debug output.
+ *
+ * Since: 1.12
+ */
void
-__cyg_profile_func_enter (void *this_fn, void *call_site)
- G_GNUC_NO_INSTRUMENT;
- void __cyg_profile_func_enter (void *this_fn, void *call_site)
+gst_print (const gchar * format, ...)
{
- gchar *name = _gst_debug_nameof_funcptr (this_fn);
- gchar *site = _gst_debug_nameof_funcptr (call_site);
+ va_list args;
+ gchar *str;
- GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "entering function %s from %s", name,
- site);
- stack_trace =
- g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)",
- this_fn, name, call_site, site));
+ va_start (args, format);
+ str = gst_info_strdup_vprintf (format, args);
+ va_end (args);
- g_free (name);
- g_free (site);
+ g_print ("%s", str);
+ g_free (str);
}
+/**
+ * gst_println:
+ * @format: a printf style format string
+ * @...: the printf arguments for @format
+ *
+ * Outputs a formatted message via the GLib print handler. The default print
+ * handler simply outputs the message to stdout.
+ *
+ * This function will append a new-line character at the end, unlike
+ * gst_print() which will not.
+ *
+ * All strings must be in ASCII or UTF-8 encoding.
+ *
+ * This function differs from g_print() in that it supports all the additional
+ * printf specifiers that are supported by GStreamer's debug logging system,
+ * such as #GST_PTR_FORMAT and #GST_SEGMENT_FORMAT.
+ *
+ * This function is primarily for printing debug output.
+ *
+ * Since: 1.12
+ */
void
-__cyg_profile_func_exit (void *this_fn, void *call_site)
- G_GNUC_NO_INSTRUMENT;
- void __cyg_profile_func_exit (void *this_fn, void *call_site)
+gst_println (const gchar * format, ...)
{
- gchar *name = _gst_debug_nameof_funcptr (this_fn);
+ va_list args;
+ gchar *str;
- GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "leaving function %s", name);
- g_free (stack_trace->data);
- stack_trace = g_slist_delete_link (stack_trace, stack_trace);
+ va_start (args, format);
+ str = gst_info_strdup_vprintf (format, args);
+ va_end (args);
- g_free (name);
+ g_print ("%s\n", str);
+ g_free (str);
}
/**
- * gst_debug_print_stack_trace:
+ * gst_printerr:
+ * @format: a printf style format string
+ * @...: the printf arguments for @format
+ *
+ * Outputs a formatted message via the GLib error message handler. The default
+ * handler simply outputs the message to stderr.
*
- * If GST_ENABLE_FUNC_INSTRUMENTATION is defined a stacktrace is available for
- * gstreamer code, which can be printed with this function.
+ * This function will not append a new-line character at the end, unlike
+ * gst_printerrln() which will.
+ *
+ * All strings must be in ASCII or UTF-8 encoding.
+ *
+ * This function differs from g_printerr() in that it supports the additional
+ * printf specifiers that are supported by GStreamer's debug logging system,
+ * such as #GST_PTR_FORMAT and #GST_SEGMENT_FORMAT.
+ *
+ * This function is primarily for printing debug output.
+ *
+ * Since: 1.12
*/
void
-gst_debug_print_stack_trace (void)
+gst_printerr (const gchar * format, ...)
{
- GSList *walk = stack_trace;
- gint count = 0;
+ va_list args;
+ gchar *str;
- if (walk)
- walk = g_slist_next (walk);
+ va_start (args, format);
+ str = gst_info_strdup_vprintf (format, args);
+ va_end (args);
- while (walk) {
- gchar *name = (gchar *) walk->data;
+ g_printerr ("%s", str);
+ g_free (str);
+}
- g_print ("#%-2d %s\n", count++, name);
+/**
+ * gst_printerrln:
+ * @format: a printf style format string
+ * @...: the printf arguments for @format
+ *
+ * Outputs a formatted message via the GLib error message handler. The default
+ * handler simply outputs the message to stderr.
+ *
+ * This function will append a new-line character at the end, unlike
+ * gst_printerr() which will not.
+ *
+ * All strings must be in ASCII or UTF-8 encoding.
+ *
+ * This function differs from g_printerr() in that it supports the additional
+ * printf specifiers that are supported by GStreamer's debug logging system,
+ * such as #GST_PTR_FORMAT and #GST_SEGMENT_FORMAT.
+ *
+ * This function is primarily for printing debug output.
+ *
+ * Since: 1.12
+ */
+void
+gst_printerrln (const gchar * format, ...)
+{
+ va_list args;
+ gchar *str;
- walk = g_slist_next (walk);
+ va_start (args, format);
+ str = gst_info_strdup_vprintf (format, args);
+ va_end (args);
+
+ g_printerr ("%s\n", str);
+ g_free (str);
+}
+
+#ifdef HAVE_UNWIND
+#ifdef HAVE_DW
+static gboolean
+append_debug_info (GString * trace, Dwfl * dwfl, const void *ip)
+{
+ Dwfl_Line *line;
+ Dwarf_Addr addr;
+ Dwfl_Module *module;
+ const gchar *function_name;
+
+ if (dwfl_linux_proc_report (dwfl, getpid ()) != 0)
+ return FALSE;
+
+ if (dwfl_report_end (dwfl, NULL, NULL))
+ return FALSE;
+
+ addr = (uintptr_t) ip;
+ module = dwfl_addrmodule (dwfl, addr);
+ function_name = dwfl_module_addrname (module, addr);
+
+ g_string_append_printf (trace, "%s (", function_name ? function_name : "??");
+
+ line = dwfl_getsrc (dwfl, addr);
+ if (line != NULL) {
+ gint nline;
+ Dwarf_Addr addr;
+ const gchar *filename = dwfl_lineinfo (line, &addr,
+ &nline, NULL, NULL, NULL);
+
+ g_string_append_printf (trace, "%s:%d", strrchr (filename,
+ G_DIR_SEPARATOR) + 1, nline);
+ } else {
+ const gchar *eflfile = NULL;
+
+ dwfl_module_info (module, NULL, NULL, NULL, NULL, NULL, &eflfile, NULL);
+ g_string_append_printf (trace, "%s:%p", eflfile ? eflfile : "??", ip);
}
+
+ return TRUE;
}
+#endif /* HAVE_DW */
+
+static gchar *
+generate_unwind_trace (GstStackTraceFlags flags)
+{
+ gint unret;
+ unw_context_t uc;
+ unw_cursor_t cursor;
+ gboolean use_libunwind = TRUE;
+ GString *trace = g_string_new (NULL);
+
+#ifdef HAVE_DW
+ Dwfl *dwfl = NULL;
+ Dwfl_Callbacks callbacks = {
+ .find_elf = dwfl_linux_proc_find_elf,
+ .find_debuginfo = dwfl_standard_find_debuginfo,
+ };
+
+ if ((flags & GST_STACK_TRACE_SHOW_FULL))
+ dwfl = dwfl_begin (&callbacks);
+#endif /* HAVE_DW */
+
+ unret = unw_getcontext (&uc);
+ if (unret) {
+ GST_DEBUG ("Could not get libunwind context (%d)", unret);
+
+ goto done;
+ }
+ unret = unw_init_local (&cursor, &uc);
+ if (unret) {
+ GST_DEBUG ("Could not init libunwind context (%d)", unret);
+
+ goto done;
+ }
+
+ while (unw_step (&cursor) > 0) {
+#ifdef HAVE_DW
+ if (dwfl) {
+ unw_word_t ip;
+
+ unret = unw_get_reg (&cursor, UNW_REG_IP, &ip);
+ if (unret) {
+ GST_DEBUG ("libunwind could read frame info (%d)", unret);
+
+ goto done;
+ }
+
+ if (append_debug_info (trace, dwfl, (void *) (ip - 4))) {
+ use_libunwind = FALSE;
+ g_string_append (trace, ")\n");
+ }
+ }
+#endif /* HAVE_DW */
+
+ if (use_libunwind) {
+ char name[32];
+
+ unw_word_t offset = 0;
+ unw_get_proc_name (&cursor, name, sizeof (name), &offset);
+ g_string_append_printf (trace, "%s (0x%" G_GSIZE_FORMAT ")\n", name,
+ (gsize) offset);
+ }
+ }
+
+done:
+#ifdef HAVE_DW
+ if (dwfl)
+ dwfl_end (dwfl);
+#endif
+
+ return g_string_free (trace, FALSE);
+}
+
+#endif /* HAVE_UNWIND */
+
+#ifdef HAVE_BACKTRACE
+static gchar *
+generate_backtrace_trace (void)
+{
+ int j, nptrs;
+ void *buffer[BT_BUF_SIZE];
+ char **strings;
+ GString *trace;
+
+ trace = g_string_new (NULL);
+ nptrs = backtrace (buffer, BT_BUF_SIZE);
+
+ strings = backtrace_symbols (buffer, nptrs);
+
+ if (!strings)
+ return NULL;
+
+ for (j = 0; j < nptrs; j++)
+ g_string_append_printf (trace, "%s\n", strings[j]);
+
+ free (strings);
+
+ return g_string_free (trace, FALSE);
+}
+#else
+#define generate_backtrace_trace() NULL
+#endif /* HAVE_BACKTRACE */
+
+#ifdef HAVE_DBGHELP
+static void
+dbghelp_initialize_symbols (HANDLE process)
+{
+ static gsize initialization_value = 0;
+
+ if (g_once_init_enter (&initialization_value)) {
+ GST_INFO ("Initializing Windows symbol handler");
+ SymSetOptions (SYMOPT_LOAD_LINES);
+ SymInitialize (process, NULL, TRUE);
+ GST_INFO ("Initialized Windows symbol handler");
+
+ g_once_init_leave (&initialization_value, 1);
+ }
+}
+
+static gchar *
+generate_dbghelp_trace (void)
+{
+ HANDLE process = GetCurrentProcess ();
+ HANDLE thread = GetCurrentThread ();
+ IMAGEHLP_MODULE64 module_info;
+ DWORD machine;
+ CONTEXT context;
+ STACKFRAME64 frame = { 0 };
+ PVOID save_context;
+ GString *trace = g_string_new (NULL);
+
+ dbghelp_initialize_symbols (process);
+
+ memset (&context, 0, sizeof (CONTEXT));
+ context.ContextFlags = CONTEXT_FULL;
+
+ RtlCaptureContext (&context);
+
+ frame.AddrPC.Mode = AddrModeFlat;
+ frame.AddrStack.Mode = AddrModeFlat;
+ frame.AddrFrame.Mode = AddrModeFlat;
+
+#if (defined _M_IX86)
+ machine = IMAGE_FILE_MACHINE_I386;
+ frame.AddrFrame.Offset = context.Ebp;
+ frame.AddrPC.Offset = context.Eip;
+ frame.AddrStack.Offset = context.Esp;
+#elif (defined _M_X64)
+ machine = IMAGE_FILE_MACHINE_AMD64;
+ frame.AddrFrame.Offset = context.Rbp;
+ frame.AddrPC.Offset = context.Rip;
+ frame.AddrStack.Offset = context.Rsp;
+#else
+ goto done;
+#endif
+
+ module_info.SizeOfStruct = sizeof (module_info);
+ save_context = (machine == IMAGE_FILE_MACHINE_I386) ? NULL : &context;
+
+ while (TRUE) {
+ char buffer[sizeof (SYMBOL_INFO) + MAX_SYM_NAME * sizeof (TCHAR)];
+ PSYMBOL_INFO symbol = (PSYMBOL_INFO) buffer;
+ IMAGEHLP_LINE64 line;
+ DWORD displacement = 0;
+
+ symbol->SizeOfStruct = sizeof (SYMBOL_INFO);
+ symbol->MaxNameLen = MAX_SYM_NAME;
+
+ line.SizeOfStruct = sizeof (line);
+
+ if (!StackWalk64 (machine, process, thread, &frame, save_context, 0,
+ SymFunctionTableAccess64, SymGetModuleBase64, 0))
+ break;
+
+ if (SymFromAddr (process, frame.AddrPC.Offset, 0, symbol))
+ g_string_append_printf (trace, "%s ", symbol->Name);
+ else
+ g_string_append (trace, "?? ");
+
+ if (SymGetLineFromAddr64 (process, frame.AddrPC.Offset, &displacement,
+ &line))
+ g_string_append_printf (trace, "(%s:%u)", line.FileName, line.LineNumber);
+ else if (SymGetModuleInfo64 (process, frame.AddrPC.Offset, &module_info))
+ g_string_append_printf (trace, "(%s)", module_info.ImageName);
+ else
+ g_string_append_printf (trace, "(%s)", "??");
+
+ g_string_append (trace, "\n");
+ }
+
+done:
+ return g_string_free (trace, FALSE);
+}
+#endif /* HAVE_DBGHELP */
+
+/**
+ * gst_debug_get_stack_trace:
+ * @flags: A set of #GstStackTraceFlags to determine how the stack
+ * trace should look like. Pass 0 to retrieve a minimal backtrace.
+ *
+ * Returns: (nullable): a stack trace, if libunwind or glibc backtrace are
+ * present, else %NULL.
+ *
+ * Since: 1.12
+ */
+gchar *
+gst_debug_get_stack_trace (GstStackTraceFlags flags)
+{
+ gchar *trace = NULL;
+#ifdef HAVE_BACKTRACE
+ gboolean have_backtrace = TRUE;
#else
+ gboolean have_backtrace = FALSE;
+#endif
+
+#ifdef HAVE_UNWIND
+ if ((flags & GST_STACK_TRACE_SHOW_FULL) || !have_backtrace)
+ trace = generate_unwind_trace (flags);
+#endif /* HAVE_UNWIND */
+
+#ifdef HAVE_DBGHELP
+ trace = generate_dbghelp_trace ();
+#endif
+
+ if (trace)
+ return trace;
+ else if (have_backtrace)
+ return generate_backtrace_trace ();
+
+ return NULL;
+}
+
+/**
+ * gst_debug_print_stack_trace:
+ *
+ * If libunwind, glibc backtrace or DbgHelp are present
+ * a stack trace is printed.
+ */
void
gst_debug_print_stack_trace (void)
{
- /* nothing because it's compiled out */
+ gchar *trace = gst_debug_get_stack_trace (GST_STACK_TRACE_SHOW_FULL);
+
+ if (trace)
+ g_print ("%s\n", trace);
+
+ g_free (trace);
}
-#endif /* GST_ENABLE_FUNC_INSTRUMENTATION */
+#ifndef GST_DISABLE_GST_DEBUG
+typedef struct
+{
+ guint max_size_per_thread;
+ guint thread_timeout;
+ GQueue threads;
+ GHashTable *thread_index;
+} GstRingBufferLogger;
+
+typedef struct
+{
+ GList *link;
+ gint64 last_use;
+ GThread *thread;
+
+ GQueue log;
+ gsize log_size;
+} GstRingBufferLog;
+
+G_LOCK_DEFINE_STATIC (ring_buffer_logger);
+static GstRingBufferLogger *ring_buffer_logger = NULL;
+
+static void
+gst_ring_buffer_logger_log (GstDebugCategory * category,
+ GstDebugLevel level,
+ const gchar * file,
+ const gchar * function,
+ gint line, GObject * object, GstDebugMessage * message, gpointer user_data)
+{
+ GstRingBufferLogger *logger = user_data;
+ gint pid;
+ GThread *thread;
+ GstClockTime elapsed;
+ gchar *obj = NULL;
+ gchar c;
+ gchar *output;
+ gsize output_len;
+ GstRingBufferLog *log;
+ gint64 now = g_get_monotonic_time ();
+ const gchar *message_str = gst_debug_message_get (message);
+
+ G_LOCK (ring_buffer_logger);
+
+ if (logger->thread_timeout > 0) {
+ /* Remove all threads that saw no output since thread_timeout seconds.
+ * By construction these are all at the tail of the queue, and the queue
+ * is ordered by last use, so we just need to look at the tail.
+ */
+ while (logger->threads.tail) {
+ log = logger->threads.tail->data;
+ if (log->last_use + logger->thread_timeout * G_USEC_PER_SEC >= now)
+ break;
+
+ g_hash_table_remove (logger->thread_index, log->thread);
+ while ((output = g_queue_pop_head (&log->log)))
+ g_free (output);
+ g_free (log);
+ g_queue_pop_tail (&logger->threads);
+ }
+ }
+
+ /* Get logger for this thread, and put it back at the
+ * head of the threads queue */
+ thread = g_thread_self ();
+ log = g_hash_table_lookup (logger->thread_index, thread);
+ if (!log) {
+ log = g_new0 (GstRingBufferLog, 1);
+ g_queue_init (&log->log);
+ log->log_size = 0;
+ g_queue_push_head (&logger->threads, log);
+ log->link = logger->threads.head;
+ log->thread = thread;
+ g_hash_table_insert (logger->thread_index, thread, log);
+ } else {
+ g_queue_unlink (&logger->threads, log->link);
+ g_queue_push_head_link (&logger->threads, log->link);
+ }
+ log->last_use = now;
+
+ /* __FILE__ might be a file name or an absolute path or a
+ * relative path, irrespective of the exact compiler used,
+ * in which case we want to shorten it to the filename for
+ * readability. */
+ c = file[0];
+ if (c == '.' || c == '/' || c == '\\' || (c != '\0' && file[1] == ':')) {
+ file = gst_path_basename (file);
+ }
+
+ pid = getpid ();
+
+ if (object) {
+ obj = gst_debug_print_object (object);
+ } else {
+ obj = (gchar *) "";
+ }
+
+ elapsed = GST_CLOCK_DIFF (_priv_gst_start_time, gst_util_get_timestamp ());
+
+ /* no color, all platforms */
+#define PRINT_FMT " "PID_FMT" "PTR_FMT" %s "CAT_FMT" %s\n"
+ output =
+ g_strdup_printf ("%" GST_TIME_FORMAT PRINT_FMT, GST_TIME_ARGS (elapsed),
+ pid, thread, gst_debug_level_get_name (level),
+ gst_debug_category_get_name (category), file, line, function, obj,
+ message_str);
+#undef PRINT_FMT
+
+ output_len = strlen (output);
+
+ if (output_len < logger->max_size_per_thread) {
+ gchar *buf;
+
+ /* While using a GQueue here is not the most efficient thing to do, we
+ * have to allocate a string for every output anyway and could just store
+ * that instead of copying it to an actual ringbuffer.
+ * Better than GQueue would be GstQueueArray, but that one is in
+ * libgstbase and we can't use it here. That one allocation will not make
+ * much of a difference anymore, considering the number of allocations
+ * needed to get to this point...
+ */
+ while (log->log_size + output_len > logger->max_size_per_thread) {
+ buf = g_queue_pop_head (&log->log);
+ log->log_size -= strlen (buf);
+ g_free (buf);
+ }
+ g_queue_push_tail (&log->log, output);
+ log->log_size += output_len;
+ } else {
+ gchar *buf;
+
+ /* Can't really write anything as the line is bigger than the maximum
+ * allowed log size already, so just remove everything */
+
+ while ((buf = g_queue_pop_head (&log->log)))
+ g_free (buf);
+ g_free (output);
+ log->log_size = 0;
+ }
+
+ if (object != NULL)
+ g_free (obj);
+
+ G_UNLOCK (ring_buffer_logger);
+}
+
+/**
+ * gst_debug_ring_buffer_logger_get_logs:
+ *
+ * Fetches the current logs per thread from the ring buffer logger. See
+ * gst_debug_add_ring_buffer_logger() for details.
+ *
+ * Returns: (transfer full) (array zero-terminated): NULL-terminated array of
+ * strings with the debug output per thread
+ *
+ * Since: 1.14
+ */
+gchar **
+gst_debug_ring_buffer_logger_get_logs (void)
+{
+ gchar **logs, **tmp;
+ GList *l;
+
+ g_return_val_if_fail (ring_buffer_logger != NULL, NULL);
+
+ G_LOCK (ring_buffer_logger);
+
+ tmp = logs = g_new0 (gchar *, ring_buffer_logger->threads.length + 1);
+ for (l = ring_buffer_logger->threads.head; l; l = l->next) {
+ GstRingBufferLog *log = l->data;
+ GList *l;
+ gchar *p;
+ gsize len;
+
+ *tmp = p = g_new0 (gchar, log->log_size + 1);
+
+ for (l = log->log.head; l; l = l->next) {
+ len = strlen (l->data);
+ memcpy (p, l->data, len);
+ p += len;
+ }
+
+ tmp++;
+ }
+
+ G_UNLOCK (ring_buffer_logger);
+
+ return logs;
+}
+
+static void
+gst_ring_buffer_logger_free (GstRingBufferLogger * logger)
+{
+ G_LOCK (ring_buffer_logger);
+ if (ring_buffer_logger == logger) {
+ GstRingBufferLog *log;
+
+ while ((log = g_queue_pop_head (&logger->threads))) {
+ gchar *buf;
+ while ((buf = g_queue_pop_head (&log->log)))
+ g_free (buf);
+ g_free (log);
+ }
+
+ g_hash_table_unref (logger->thread_index);
+
+ g_free (logger);
+ ring_buffer_logger = NULL;
+ }
+ G_UNLOCK (ring_buffer_logger);
+}
+
+/**
+ * gst_debug_add_ring_buffer_logger:
+ * @max_size_per_thread: Maximum size of log per thread in bytes
+ * @thread_timeout: Timeout for threads in seconds
+ *
+ * Adds a memory ringbuffer based debug logger that stores up to
+ * @max_size_per_thread bytes of logs per thread and times out threads after
+ * @thread_timeout seconds of inactivity.
+ *
+ * Logs can be fetched with gst_debug_ring_buffer_logger_get_logs() and the
+ * logger can be removed again with gst_debug_remove_ring_buffer_logger().
+ * Only one logger at a time is possible.
+ *
+ * Since: 1.14
+ */
+void
+gst_debug_add_ring_buffer_logger (guint max_size_per_thread,
+ guint thread_timeout)
+{
+ GstRingBufferLogger *logger;
+
+ G_LOCK (ring_buffer_logger);
+
+ if (ring_buffer_logger) {
+ g_warn_if_reached ();
+ G_UNLOCK (ring_buffer_logger);
+ return;
+ }
+
+ logger = ring_buffer_logger = g_new0 (GstRingBufferLogger, 1);
+
+ logger->max_size_per_thread = max_size_per_thread;
+ logger->thread_timeout = thread_timeout;
+ logger->thread_index = g_hash_table_new (g_direct_hash, g_direct_equal);
+ g_queue_init (&logger->threads);
+
+ gst_debug_add_log_function (gst_ring_buffer_logger_log, logger,
+ (GDestroyNotify) gst_ring_buffer_logger_free);
+ G_UNLOCK (ring_buffer_logger);
+}
+
+/**
+ * gst_debug_remove_ring_buffer_logger:
+ *
+ * Removes any previously added ring buffer logger with
+ * gst_debug_add_ring_buffer_logger().
+ *
+ * Since: 1.14
+ */
+void
+gst_debug_remove_ring_buffer_logger (void)
+{
+ gst_debug_remove_log_function (gst_ring_buffer_logger_log);
+}
+
+#else /* GST_DISABLE_GST_DEBUG */
+#ifndef GST_REMOVE_DISABLED
+
+gchar **
+gst_debug_ring_buffer_logger_get_logs (void)
+{
+ return NULL;
+}
+
+void
+gst_debug_add_ring_buffer_logger (guint max_size_per_thread,
+ guint thread_timeout)
+{
+}
+
+void
+gst_debug_remove_ring_buffer_logger (void)
+{
+}
+
+#endif /* GST_REMOVE_DISABLED */
+#endif /* GST_DISABLE_GST_DEBUG */
projects / platform / upstream / gstreamer.git / blobdiff