gboolean
arv_make_thread_high_priority (int nice_level)
{
GDBusConnection *bus;
GError *error = NULL;
bus = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
if (error != NULL) {
arv_warning_misc ("Failed to connect to system bus: %s", error->message);
g_error_free (error);
return FALSE;
}
arv_rtkit_make_high_priority (bus, _gettid(), nice_level, &error);
g_object_unref (bus);
if (error != NULL) {
arv_warning_misc ("Failed to connect high priority: %s", error->message);
g_error_free (error);
return FALSE;
}
arv_debug_misc ("Nice level successfully changed to %d", nice_level);
return TRUE;
}
static void
arv_zip_build_file_list (ArvZip *zip)
{
ArvZipFile *zip_file;
const void *ptr;
ptrdiff_t offset;
int i;
offset = zip->directory_offset;
for (i = 0; i < zip->n_files; i++) {
ptr = zip->buffer + zip->header_size + offset;
if (GUINT32_FROM_LE_PTR (ptr) != 0x02014b50) return;
zip_file = g_new0 (ArvZipFile, 1);
zip_file->compressed_size = GUINT32_FROM_LE_PTR (ptr + 20);
zip_file->uncompressed_size = GUINT32_FROM_LE_PTR (ptr + 24);
zip_file->offset = GUINT32_FROM_LE_PTR (ptr + 42);
zip_file->name = g_strndup ((char *) (ptr + 46), GUINT16_FROM_LE_PTR (ptr + 28));
arv_debug_misc ("[Zip::list_files] %s", zip_file->name);
zip->files = g_slist_prepend (zip->files, zip_file);
offset += 0x2e +
GUINT16_FROM_LE_PTR (ptr + 28) + /* filename size */
GUINT16_FROM_LE_PTR (ptr + 30) + /* extra field */
GUINT16_FROM_LE_PTR (ptr + 32); /* file comment */
}
}
gboolean
arv_make_thread_realtime (int priority)
{
arv_debug_misc ("SCHED API not supported on OSX");
return FALSE;
}
static ptrdiff_t
arv_zip_get_file_data (ArvZip *zip, ArvZipFile *zip_file)
{
const void *ptr;
ptr = zip->buffer + zip_file->offset + zip->header_size;
if (ARV_GUINT32_FROM_LE_PTR (ptr, 0) != 0x04034b50) {
arv_debug_misc ("[Zip::get_file_data] Magic number for file header not found (0x04034b50)");
return -1;
}
return zip_file->offset + zip->header_size +
ARV_GUINT16_FROM_LE_PTR (ptr, 26) +
ARV_GUINT16_FROM_LE_PTR (ptr, 28) + 30;
}
gboolean
arv_make_thread_realtime (int priority)
{
struct sched_param p;
memset(&p, 0, sizeof(p));
p.sched_priority = priority;
if (sched_setscheduler(_gettid (), SCHED_RR|SCHED_RESET_ON_FORK, &p) < 0
&& errno == EPERM) {
struct rlimit rlim;
GDBusConnection *bus;
GError *error = NULL;
memset(&rlim, 0, sizeof(rlim));
rlim.rlim_cur = rlim.rlim_max = 100000000ULL; /* 100ms */
if ((setrlimit(RLIMIT_RTTIME, &rlim) < 0)) {
arv_warning_misc ("Failed to set RLIMIT_RTTIME: %s", strerror (errno));
return FALSE;
}
bus = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
if (error != NULL) {
arv_warning_misc ("Failed to connect to system bus: %s", error->message);
g_error_free (error);
return FALSE;
}
arv_rtkit_make_realtime(bus, _gettid (), p.sched_priority, &error);
g_object_unref (bus);
if (error != NULL) {
arv_warning_misc ("Failed to connect make realtime: %s", error->message);
g_error_free (error);
return FALSE;
}
arv_debug_misc ("Thread became realtime with priority %d", priority);
return TRUE;
}
return TRUE;
}