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GStreamer 0.10 Core Reference Manual | |
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| Top | Description | ||||
#include <gst/gst.h> struct GstTrace; GstTrace * gst_trace_new (const gchar *filename,gint size); void gst_trace_destroy (GstTrace *trace); void gst_trace_flush (GstTrace *trace); void gst_trace_text_flush (GstTrace *trace); #define gst_trace_add_entry (trace, seq, data, msg) #define gst_trace_get_size (trace) #define gst_trace_get_offset (trace) #define gst_trace_get_remaining (trace) void gst_trace_set_default (GstTrace *trace); void gst_trace_read_tsc (gint64 *dst); enum GstAllocTraceFlags; struct GstAllocTrace; gboolean gst_alloc_trace_available (void); const GList * gst_alloc_trace_list (void); int gst_alloc_trace_live_all (void); void gst_alloc_trace_print_all (void); void gst_alloc_trace_set_flags_all (GstAllocTraceFlags flags); GstAllocTrace * gst_alloc_trace_get (const gchar *name); void gst_alloc_trace_print (const GstAllocTrace *trace); void gst_alloc_trace_print_live (void); void gst_alloc_trace_set_flags (GstAllocTrace *trace,GstAllocTraceFlags flags); #define gst_alloc_trace_register (name) #define gst_alloc_trace_new (trace, mem) #define gst_alloc_trace_free (trace, mem)
Traces allows to track object allocation. They provide a instance counter per GType. The counter is incremented for each object allocated and decremented it when it's freed.
Example 18. Tracing object instances
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// trace un-freed object instances gst_alloc_trace_set_flags_all (GST_ALLOC_TRACE_LIVE); if (!gst_alloc_trace_available ()) { g_warning ("Trace not available (recompile with trace enabled)."); } gst_alloc_trace_print_live (); // do something here gst_alloc_trace_print_live (); |
Last reviewed on 2005-11-21 (0.9.5)
GstTrace * gst_trace_new (const gchar *filename,gint size);
Create a ringbuffer of size in the file with filename to
store trace results in.
Free-function: gst_trace_destroy
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a filename |
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the max size of the file |
Returns : |
a new GstTrace. [transfer full] |
void gst_trace_destroy (GstTrace *trace);
Flush an close the previously allocated trace.
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the GstTrace to destroy. [in][transfer full] |
void gst_trace_flush (GstTrace *trace);
Flush any pending trace entries in trace to the trace file.
trace can be NULL in which case the default GstTrace will be
flushed.
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the GstTrace to flush. |
void gst_trace_text_flush (GstTrace *trace);
Flush any pending trace entries in trace to the trace file,
formatted as a text line with timestamp and sequence numbers.
trace can be NULL in which case the default GstTrace will be
flushed.
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the GstTrace to flush. |
#define gst_trace_add_entry(trace,seq,data,msg)
Add an entry to trace with sequence number seq, data and msg.
If trace is NULL, the entry will be added to the default GstTrace.
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a GstTrace |
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a sequence number |
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the data to trace |
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the trace message |
#define gst_trace_get_size(trace) ((trace)->bufsize)
Retrieve the buffer size of trace.
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a GstTrace |
#define gst_trace_get_offset(trace) ((trace)->bufoffset)
Retrieve the current buffer offset of trace.
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a GstTrace |
#define gst_trace_get_remaining(trace) ((trace)->bufsize - (trace)->bufoffset)
Retrieve the remaining size in the trace buffer.
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a GstTrace |
void gst_trace_set_default (GstTrace *trace);
Set the default GstTrace to trace.
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the GstTrace to set as the default. |
void gst_trace_read_tsc (gint64 *dst);
Read a platform independent timer value that can be used in benchmarks.
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(out) pointer to hold the result. |
typedef enum {
GST_ALLOC_TRACE_NONE = 0,
GST_ALLOC_TRACE_LIVE = (1 << 0),
GST_ALLOC_TRACE_MEM_LIVE = (1 << 1)
} GstAllocTraceFlags;
Flags indicating which tracing feature to enable.
struct GstAllocTrace {
gchar *name;
gint flags;
gint live;
GSList *mem_live;
};
The main tracing object
gboolean gst_alloc_trace_available (void);
Check if alloc tracing was compiled into the core
Returns : |
TRUE if the core was compiled with alloc tracing enabled. |
const GList * gst_alloc_trace_list (void);
Get a list of all registered alloc trace objects.
Returns : |
a GList of GstAllocTrace objects. |
int gst_alloc_trace_live_all (void);
Get the total number of live registered alloc trace objects.
Returns : |
the total number of live registered alloc trace objects. |
void gst_alloc_trace_print_all (void);
Print the status of all registered alloc trace objects.
void gst_alloc_trace_set_flags_all (GstAllocTraceFlags flags);
Enable the specified options on all registered alloc trace objects.
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the options to enable |
GstAllocTrace * gst_alloc_trace_get (const gchar *name);
Get the named alloc trace object.
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the name of the alloc trace object |
Returns : |
a GstAllocTrace with the given name or NULL when no alloc tracer was registered with that name. |
void gst_alloc_trace_print (const GstAllocTrace *trace);
Print the status of the given GstAllocTrace.
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the GstAllocTrace to print |
void gst_alloc_trace_print_live (void);
Print the status of all registered alloc trace objects, ignoring those without live objects.
void gst_alloc_trace_set_flags (GstAllocTrace *trace,GstAllocTraceFlags flags);
Enable the given features on the given GstAllocTrace object.
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the GstAllocTrace |
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flags to set |
#define gst_alloc_trace_register(name) _gst_alloc_trace_register (name);
Register a new alloc tracer with the given name
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The name of the tracer object |
#define gst_alloc_trace_new(trace, mem)
Use the tracer to trace a new memory allocation
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The tracer to use |
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The memory allocated |