* TODO: Licensing
*/
+#define _GNU_SOURCE
#include <stdio.h>
#include <stdint.h>
#include <glib.h>
#include <string.h>
+#include <unistd.h>
#include <sys/mman.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
#include "bluesky-private.h"
int offset, gsize len)
{
g_assert(offset + len <= mmap->len);
+ g_assert(mmap->addr != NULL);
BlueSkyRCStr *string = g_new(BlueSkyRCStr, 1);
string->mmap = mmap;
/**** Request response-time tracking. ****/
/* TODO: Locking */
typedef struct {
+ int tid;
bluesky_time_hires timestamp;
char *message;
} RTEvent;
+/* To catch attempts to access to invalid profile structures. */
+#define PROFILE_MAGIC 0x439929d8
+
+static FILE *profiling_file = NULL;
+
BlueSkyProfile *bluesky_profile_new()
{
- return g_new0(BlueSkyProfile, 1);
+ BlueSkyProfile *profile = g_new0(BlueSkyProfile, 1);
+ profile->lock = g_mutex_new();
+ profile->magic = PROFILE_MAGIC;
+ return profile;
}
void bluesky_profile_free(BlueSkyProfile *profile)
{
+ if (profile->magic != PROFILE_MAGIC) {
+ g_warning("Access to invalid BlueSkyProfile object!");
+ return;
+ }
while (profile->events != NULL) {
RTEvent *event = (RTEvent *)profile->events->data;
g_free(event->message);
g_free(event);
profile->events = g_list_delete_link(profile->events, profile->events);
}
+ profile->magic = 0;
+ g_mutex_free(profile->lock);
g_free(profile->description);
g_free(profile);
}
void bluesky_profile_add_event(BlueSkyProfile *profile, char *message)
{
+ if (profiling_file == NULL)
+ return;
+
g_return_if_fail(profile != NULL);
+ if (profile->magic != PROFILE_MAGIC) {
+ g_warning("Access to invalid BlueSkyProfile object!");
+ return;
+ }
+ g_mutex_lock(profile->lock);
RTEvent *event = g_new(RTEvent, 1);
event->timestamp = bluesky_now_hires();
+ /* FIXME: Non-portable */
+ event->tid = syscall(SYS_gettid);
event->message = message;
profile->events = g_list_prepend(profile->events, event);
+ g_mutex_unlock(profile->lock);
+}
+
+static GStaticMutex profiling_print_lock = G_STATIC_MUTEX_INIT;
+
+void bluesky_profile_set_output(FILE *stream)
+{
+ profiling_file = stream;
}
void bluesky_profile_print(BlueSkyProfile *profile)
{
+ FILE *stream = profiling_file;
+ if (stream == NULL)
+ return;
+
g_return_if_fail(profile != NULL);
- g_print("Event Timeline: %s\n", profile->description);
+ if (profile->magic != PROFILE_MAGIC) {
+ g_warning("Access to invalid BlueSkyProfile object!");
+ return;
+ }
+
+ g_mutex_lock(profile->lock);
+ g_static_mutex_lock(&profiling_print_lock);
+ fprintf(stream, "Event Timeline: %s\n", profile->description);
GList *link = g_list_last(profile->events);
bluesky_time_hires last_time = 0;
while (link != NULL) {
RTEvent *event = (RTEvent *)link->data;
- g_print(" [%"PRIi64" ns]: %s\n",
- event->timestamp - last_time, event->message);
+ fprintf(stream, " [%d] [%"PRIi64" ns]: %s\n",
+ event->tid, event->timestamp - last_time, event->message);
last_time = event->timestamp;
link = link->prev;
}
+ g_static_mutex_unlock(&profiling_print_lock);
+ g_mutex_unlock(profile->lock);
}
static GStaticPrivate per_thread_profile = G_STATIC_PRIVATE_INIT;