lardon3d/src/feature_task.c

750 lines
32 KiB
C

#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <openssl/evp.h>
#include <pthread.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>
#include <lardon3d/feature_store.h>
#include <lardon3d/feature_task.h>
#include <lardon3d/project.h>
#include <lardon3d/task_queue.h>
#include "opencv_task_thread_control.h"
#include "task_internal.h"
typedef struct {
char project_path[PATH_MAX];
Lardon3DProjectDb *database;
Lardon3DResourceGovernor *governor;
Lardon3DProjectDbFeatureExtractTask parameters;
} Lardon3DFeatureTaskContext;
enum {
FEATURE_BATCH_MAX = 12,
FEATURE_BATCH_CHILD_STACK = 1024 * 1024,
};
typedef struct {
char project_path[PATH_MAX];
Lardon3DProjectDb *database;
Lardon3DResourceGovernor *governor;
Lardon3DProjectDbFeatureExtractBatchTask parameters;
} Lardon3DFeatureBatchTaskContext;
static void destroy_context(void *userdata) { free(userdata); }
static void runtime_state(const Lardon3DFeatureTaskContext *context, Lardon3DAppState *state) {
lardon3d_app_state_init(state);
state->project_loaded = true;
state->project_db = context->database;
state->resource_governor = context->governor;
(void)snprintf(state->project_path, sizeof(state->project_path), "%s", context->project_path);
}
static bool file_hash(const char *path, unsigned char output[32]) {
int fd = open(path, O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
if (fd < 0) {
return false;
}
struct stat st;
if (fstat(fd, &st) != 0 || !S_ISREG(st.st_mode)) {
close(fd);
return false;
}
EVP_MD_CTX *ctx = EVP_MD_CTX_new();
bool ok = ctx && EVP_DigestInit_ex(ctx, EVP_sha256(), NULL) == 1;
unsigned char buffer[65536];
while (ok) {
ssize_t n = read(fd, buffer, sizeof(buffer));
if (n < 0 && errno == EINTR) {
continue;
}
if (n < 0) {
ok = false;
break;
}
if (n == 0) {
break;
}
ok = EVP_DigestUpdate(ctx, buffer, (size_t)n) == 1;
}
unsigned int size = 0;
ok = ok && EVP_DigestFinal_ex(ctx, output, &size) == 1 && size == 32;
if (ctx) {
EVP_MD_CTX_free(ctx);
}
if (close(fd) != 0) {
ok = false;
}
return ok;
}
static uint64_t elapsed_ns(struct timespec a, struct timespec b) {
uint64_t s = b.tv_sec >= a.tv_sec ? (uint64_t)(b.tv_sec - a.tv_sec) : 0;
long n = b.tv_nsec - a.tv_nsec;
if (n < 0 && s) {
--s;
n += 1000000000L;
}
return s <= UINT64_MAX / 1000000000ULL ? s * 1000000000ULL + (uint64_t)n : UINT64_MAX;
}
static void finished(const Lardon3DTask *task, void *userdata) {
#ifdef LARDON3D_FEATURE_TASK_TESTING
const char *skip = getenv("LARDON3D_TEST_FEATURE_SKIP_FINISHED_CHECKPOINT");
if (skip && strcmp(skip, "1") == 0) {
return;
}
#endif
Lardon3DFeatureTaskContext *context = userdata;
Lardon3DAppState state;
runtime_state(context, &state);
(void)lardon3d_project_checkpoint_feature_extract_task(&state, task, &context->parameters);
}
static Lardon3DProjectDbResult find_valid_feature_set(const Lardon3DFeatureTaskContext *context,
const unsigned char fingerprint[32]) {
Lardon3DProjectDbFeatureSet existing;
Lardon3DProjectDbResult found = lardon3d_project_db_find_feature_set(
context->database, context->parameters.image_id, LARDON3D_FEATURE_EXTRACTOR_KIND,
LARDON3D_FEATURE_EXTRACTOR_VERSION, fingerprint, &existing);
if (found != LARDON3D_PROJECT_DB_OK) {
return found;
}
Lardon3DFeatureReader *reader = NULL;
Lardon3DFeatureFileMetadata metadata;
Lardon3DFeatureStoreResult valid =
lardon3d_feature_reader_open(context->project_path, &existing, &reader, &metadata);
lardon3d_feature_reader_close(reader);
return valid == LARDON3D_FEATURE_STORE_OK ? LARDON3D_PROJECT_DB_OK : LARDON3D_PROJECT_DB_CORRUPT;
}
static bool load_validated_source(const Lardon3DFeatureTaskContext *context, char path[PATH_MAX]) {
Lardon3DProjectDbImage image;
Lardon3DProjectDbImageAsset asset;
if (lardon3d_project_db_load_image(context->database, context->parameters.image_id, &image,
&asset) != LARDON3D_PROJECT_DB_OK) {
return false;
}
int written = snprintf(path, PATH_MAX, "%s/%s", context->project_path, asset.path);
if (written <= 0 || (size_t)written >= PATH_MAX) {
return false;
}
unsigned char actual[32];
return file_hash(path, actual) && memcmp(actual, asset.sha256, 32) == 0;
}
static void batch_runtime_state(const Lardon3DFeatureBatchTaskContext *context,
Lardon3DAppState *state) {
lardon3d_app_state_init(state);
state->project_loaded = true;
state->project_db = context->database;
state->resource_governor = context->governor;
(void)snprintf(state->project_path, sizeof(state->project_path), "%s", context->project_path);
}
static bool batch_checkpoint(Lardon3DFeatureBatchTaskContext *context, Lardon3DTask *task,
uint32_t cursor) {
Lardon3DAppState state;
batch_runtime_state(context, &state);
Lardon3DProjectDbFeatureExtractBatchTask parameters = context->parameters;
parameters.task_id = lardon3d_task_id(task);
parameters.next_item_index = cursor;
return lardon3d_project_checkpoint_feature_extract_batch_task(&state, task, &parameters) ==
LARDON3D_PROJECT_TASK_CHECKPOINT_OK;
}
typedef struct {
Lardon3DFeatureBatchTaskContext *context;
uint32_t item_index;
uint64_t image_id;
char source_path[PATH_MAX];
bool already_ready;
Lardon3DFeatureExtractResult result;
Lardon3DExtractedFeatures features;
} FeatureBatchWorker;
static void *extract_batch_item(void *value) {
FeatureBatchWorker *worker = value;
if (worker->already_ready) return NULL;
Lardon3DFeatureExtractorParameters parameters = {
worker->context->parameters.max_features,
worker->context->parameters.pyramid_levels,
worker->context->parameters.fast_threshold};
worker->result = lardon3d_feature_extract_orb(worker->source_path, &parameters,
&worker->features);
return NULL;
}
typedef struct {
FeatureBatchWorker *workers;
size_t count;
size_t first;
size_t stride;
} FeatureBatchParticipant;
static void *extract_batch_participant(void *value) {
FeatureBatchParticipant *participant = value;
for (size_t index = participant->first; index < participant->count;
index += participant->stride)
(void)extract_batch_item(&participant->workers[index]);
return NULL;
}
static bool extract_batch_window(FeatureBatchWorker *workers, size_t count,
unsigned int admitted_threads) {
if (!workers || count == 0 || count > FEATURE_BATCH_MAX || admitted_threads == 0) return false;
size_t participants = count < admitted_threads ? count : admitted_threads;
pthread_t children[FEATURE_BATCH_MAX - 1];
FeatureBatchParticipant work[FEATURE_BATCH_MAX];
pthread_attr_t attributes;
if (pthread_attr_init(&attributes) != 0) return false;
if (pthread_attr_setstacksize(&attributes, FEATURE_BATCH_CHILD_STACK) != 0) {
(void)pthread_attr_destroy(&attributes);
return false;
}
size_t created = 0;
bool started = true;
for (size_t participant = 1; participant < participants; ++participant) {
work[participant] = (FeatureBatchParticipant){workers, count, participant, participants};
/* Participants own only disjoint extraction outputs. SQLite, Feature Store
publication, cursor advancement, and generic checkpoints remain owner-only. */
if (pthread_create(&children[created], &attributes, extract_batch_participant,
&work[participant]) != 0) {
started = false;
break;
}
++created;
}
if (pthread_attr_destroy(&attributes) != 0) started = false;
work[0] = (FeatureBatchParticipant){workers, count, 0, participants};
if (started) (void)extract_batch_participant(&work[0]);
for (size_t index = 0; index < created; ++index)
if (pthread_join(children[index], NULL) != 0) started = false;
return started;
}
static void destroy_batch_outputs(FeatureBatchWorker *workers, size_t count) {
if (!workers) return;
/* A joined window owns every participant output until ordered owner
publication consumes it. Any boundary failure must release the whole
window; the Governor reservation must not outlive abandoned ORB buffers. */
for (size_t index = 0; index < count; ++index)
lardon3d_extracted_features_destroy(&workers[index].features);
}
static bool run_batch_body(Lardon3DTask *task, Lardon3DFeatureBatchTaskContext *context) {
for (;;) {
if (!lardon3d_task_checkpoint(task)) return false;
Lardon3DProjectDbFeatureExtractBatchTask persisted;
Lardon3DProjectDbSelectedExecution execution;
if (lardon3d_project_db_load_feature_extract_batch_task(
context->database, lardon3d_task_id(task), &persisted) != LARDON3D_PROJECT_DB_OK ||
memcmp(&persisted.parameter_fingerprint, &context->parameters.parameter_fingerprint,
32) != 0 ||
lardon3d_project_db_load_selected_execution(context->database,
context->parameters.selected_execution_id, &execution) != LARDON3D_PROJECT_DB_OK)
return lardon3d_task_fail(task, "État durable Feature batch invalide.");
if (persisted.next_item_index == execution.item_count)
return lardon3d_task_set_durable_progress(task, execution.item_count, execution.item_count,
"Extraction Feature batch terminée.") &&
batch_checkpoint(context, task, execution.item_count);
Lardon3DTaskExecutionContract contract;
if (!lardon3d_task_execution_contract(task, &contract) || contract.cpu_threads == 0 ||
contract.batch_size == 0 || contract.batch_size > FEATURE_BATCH_MAX)
return lardon3d_task_fail(task, "Contrat Governor Feature batch invalide.");
size_t count = execution.item_count - persisted.next_item_index;
if (count > contract.batch_size) count = contract.batch_size;
FeatureBatchWorker workers[FEATURE_BATCH_MAX] = {{0}};
for (size_t offset = 0; offset < count; ++offset) {
FeatureBatchWorker *worker = &workers[offset];
Lardon3DProjectDbSelectedExecutionItem item;
if (lardon3d_project_db_load_selected_execution_item(
context->database, context->parameters.selected_execution_id,
persisted.next_item_index + (uint32_t)offset, &item) != LARDON3D_PROJECT_DB_OK ||
!item.has_image)
return lardon3d_task_fail(task, "Item sélectionné Feature batch invalide.");
worker->context = context;
worker->item_index = item.item_index;
worker->image_id = item.image_id;
Lardon3DFeatureTaskContext single = {0};
single.database = context->database;
single.parameters.image_id = item.image_id;
(void)snprintf(single.project_path, sizeof(single.project_path), "%s", context->project_path);
Lardon3DProjectDbResult found = find_valid_feature_set(
&single, context->parameters.parameter_fingerprint);
worker->already_ready = found == LARDON3D_PROJECT_DB_OK;
if (found == LARDON3D_PROJECT_DB_CORRUPT ||
(found != LARDON3D_PROJECT_DB_OK && found != LARDON3D_PROJECT_DB_NOT_FOUND) ||
(!worker->already_ready && !load_validated_source(&single, worker->source_path)))
return lardon3d_task_fail(task, "Source ou Feature Set batch invalide.");
}
struct timespec begin = {0}, end = {0};
bool timing_known = clock_gettime(CLOCK_MONOTONIC, &begin) == 0;
if (!extract_batch_window(workers, count, contract.cpu_threads)) {
destroy_batch_outputs(workers, count);
return lardon3d_task_fail(task, "Participants Feature batch impossibles.");
}
if (!lardon3d_task_checkpoint(task)) {
destroy_batch_outputs(workers, count);
return false;
}
size_t durable_items = 0;
Lardon3DAppState state;
batch_runtime_state(context, &state);
Lardon3DFeatureExtractorParameters parameters = {
context->parameters.max_features, context->parameters.pyramid_levels,
context->parameters.fast_threshold};
for (size_t offset = 0; offset < count; ++offset) {
FeatureBatchWorker *worker = &workers[offset];
if (!worker->already_ready) {
if (worker->result != LARDON3D_FEATURE_EXTRACT_OK) {
destroy_batch_outputs(workers, count);
return lardon3d_task_fail(task, "Extraction ORB batch impossible.");
}
Lardon3DProjectDbFeatureSet set;
Lardon3DFeatureStoreResult published = lardon3d_feature_store_publish(
&state, worker->image_id, lardon3d_task_id(task), &parameters,
&worker->features, &set);
lardon3d_extracted_features_destroy(&worker->features);
if (published != LARDON3D_FEATURE_STORE_OK &&
published != LARDON3D_FEATURE_STORE_ALREADY_PRESENT) {
destroy_batch_outputs(workers, count);
return lardon3d_task_fail(task, "Publication Feature batch impossible.");
}
if (published == LARDON3D_FEATURE_STORE_OK) ++durable_items;
}
if (lardon3d_project_db_advance_feature_extract_batch_task(
context->database, lardon3d_task_id(task), worker->item_index,
worker->item_index + 1u) != LARDON3D_PROJECT_DB_OK ||
!lardon3d_task_set_durable_progress(task, worker->item_index + 1u,
execution.item_count,
"Feature batch publié.") ||
!batch_checkpoint(context, task, worker->item_index + 1u)) {
destroy_batch_outputs(workers, count);
return lardon3d_task_fail(task, "Curseur Feature batch impossible.");
}
}
timing_known = timing_known && clock_gettime(CLOCK_MONOTONIC, &end) == 0;
if (timing_known)
(void)lardon3d_task_internal_record_sequence(task, elapsed_ns(begin, end), durable_items);
if (persisted.next_item_index + count == execution.item_count) return true;
Lardon3DResourceReservation *reservation = NULL;
if (!lardon3d_task_sequence_break(task, context->governor, &reservation, &contract))
return false;
}
}
static bool run_batch(Lardon3DTask *task, void *userdata) {
Lardon3DFeatureBatchTaskContext *context = userdata;
Lardon3DTaskExecutionContract contract;
if (!lardon3d_task_execution_contract(task, &contract) || contract.cpu_threads == 0)
return lardon3d_task_fail(task, "Contrat CPU Feature batch invalide.");
Lardon3DOpenCvTaskThreadControl control = {
.previous = lardon3d_feature_opencv_thread_count(),
.restore_required = true,
};
/* Cross-image participants are the admitted CPU dimension. OpenCV stays at
one thread per extraction to prevent nested oversubscription; Queue owns
the sole process-wide guard. Configuration may mutate before verification
fails, so restoration duty exists before configure and covers every exit. */
if (!lardon3d_feature_opencv_configure_threads(1)) {
(void)lardon3d_opencv_task_threads_end(&control);
return lardon3d_task_fail(task, "Configuration OpenCV Feature batch impossible.");
}
bool result = run_batch_body(task, context);
if (!lardon3d_opencv_task_threads_end(&control))
return lardon3d_task_fail(task, "Restauration OpenCV Feature batch impossible.");
return result;
}
#ifdef LARDON3D_FEATURE_TASK_TESTING
bool lardon3d_feature_extract_batch_test_run(Lardon3DTask *task) {
Lardon3DFeatureBatchTaskContext context = {0};
return run_batch(task, &context);
}
#endif
static void finished_batch(const Lardon3DTask *task, void *userdata) {
Lardon3DFeatureBatchTaskContext *context = userdata;
Lardon3DProjectDbFeatureExtractBatchTask persisted;
if (lardon3d_project_db_load_feature_extract_batch_task(
context->database, lardon3d_task_id(task), &persisted) == LARDON3D_PROJECT_DB_OK)
(void)batch_checkpoint(context, (Lardon3DTask *)task, persisted.next_item_index);
}
static bool run_body(Lardon3DTask *task, void *userdata, size_t *durable_items) {
Lardon3DFeatureTaskContext *context = userdata;
*durable_items = 0;
if (!lardon3d_task_checkpoint(task)) {
return false;
}
struct timespec begin = {0};
bool timing_known = clock_gettime(CLOCK_MONOTONIC, &begin) == 0;
unsigned char fingerprint[32];
lardon3d_feature_extractor_parameter_fingerprint(
&(Lardon3DFeatureExtractorParameters){context->parameters.max_features,
context->parameters.pyramid_levels,
context->parameters.fast_threshold},
fingerprint);
Lardon3DProjectDbResult found = find_valid_feature_set(context, fingerprint);
if (found == LARDON3D_PROJECT_DB_OK) {
return lardon3d_task_set_progress(task, 100, "Features déjà présentes.");
}
if (found == LARDON3D_PROJECT_DB_CORRUPT) {
return lardon3d_task_fail(task, "Feature Set READY absent ou corrompu.");
}
if (found != LARDON3D_PROJECT_DB_NOT_FOUND) {
return lardon3d_task_fail(task, "Recherche Feature Store impossible.");
}
char path[PATH_MAX];
if (!load_validated_source(context, path)) {
return lardon3d_task_fail(task, "Asset image absent ou corrompu.");
}
Lardon3DFeatureExtractorParameters parameters = {context->parameters.max_features,
context->parameters.pyramid_levels,
context->parameters.fast_threshold};
Lardon3DExtractedFeatures features;
Lardon3DFeatureExtractResult extracted =
lardon3d_feature_extract_orb(path, &parameters, &features);
if (extracted != LARDON3D_FEATURE_EXTRACT_OK) {
return lardon3d_task_fail(task, "Décodage ou extraction ORB impossible.");
}
if (!lardon3d_task_checkpoint(task)) {
lardon3d_extracted_features_destroy(&features);
return false;
}
#ifdef LARDON3D_FEATURE_TASK_TESTING
const char *pause = getenv("LARDON3D_TEST_FEATURE_PAUSE_BEFORE_PUBLISH");
if (pause && strcmp(pause, "1") == 0) {
(void)lardon3d_task_pause(task);
if (!lardon3d_task_checkpoint(task)) {
lardon3d_extracted_features_destroy(&features);
return false;
}
}
#endif
Lardon3DAppState state;
runtime_state(context, &state);
Lardon3DProjectDbFeatureSet set;
Lardon3DFeatureStoreResult published = lardon3d_feature_store_publish(
&state, context->parameters.image_id, lardon3d_task_id(task), &parameters, &features, &set);
lardon3d_extracted_features_destroy(&features);
if (published != LARDON3D_FEATURE_STORE_OK &&
published != LARDON3D_FEATURE_STORE_ALREADY_PRESENT &&
published != LARDON3D_FEATURE_STORE_PUBLISHED_NOT_DURABLE) {
return lardon3d_task_fail(task, "Publication Feature Store impossible.");
}
*durable_items = published == LARDON3D_FEATURE_STORE_OK ? 1 : 0;
struct timespec end = {0};
timing_known = timing_known && clock_gettime(CLOCK_MONOTONIC, &end) == 0;
if (*durable_items > 0 && timing_known) {
(void)lardon3d_resource_governor_record_batch(
context->governor, LARDON3D_RESOURCE_TASK_CPU, *durable_items,
elapsed_ns(begin, end), 0);
}
return lardon3d_task_set_progress(task, 100, "Feature Set publié.");
}
static bool run(Lardon3DTask *task, void *userdata) {
struct timespec begin = {0};
struct timespec end = {0};
bool timing_known = clock_gettime(CLOCK_MONOTONIC, &begin) == 0;
Lardon3DOpenCvTaskThreadControl threads;
if (!lardon3d_opencv_task_threads_begin(task, INT_MAX, &threads)) {
/* begin may have changed OpenCV before verification failed. If its first
* rollback was transiently unsuccessful, this bounded second attempt must
* discharge the process-global ownership before the callback returns. */
if (threads.restore_required &&
!lardon3d_opencv_task_threads_end(&threads)) {
return lardon3d_task_fail(task, "Restauration OpenCV Features impossible.");
}
return lardon3d_task_fail(task, "Contrat CPU OpenCV Features invalide.");
}
/* EXTERNAL LIBRARY: OpenCV accepts a positive signed-int thread count.
* Queue has one callback owner, so this process-wide setting cannot race
* another Task. Governor clamps the portable INT_MAX capability to the host
* compute pool; the guard applies that immutable admission and restores it
* on every return without changing Feature identity. */
size_t durable_items = 0;
bool result = run_body(task, userdata, &durable_items);
if (!lardon3d_opencv_task_threads_end(&threads)) {
(void)lardon3d_task_fail(task, "Restauration OpenCV Features impossible.");
return false;
}
timing_known = timing_known && clock_gettime(CLOCK_MONOTONIC, &end) == 0;
if (result && timing_known) {
/* Only extraction followed by this Task's durable publication contributes
* work. READY reuse, an ALREADY_PRESENT collision, and uncertain directory
* sync remain successful outcomes, but record zero so feedback can neither
* train nor advance the next immutable CPU trial. */
(void)lardon3d_task_internal_record_sequence(
task, elapsed_ns(begin, end), durable_items);
}
return result;
}
static Lardon3DFeatureTaskContext *
make_context(const Lardon3DTaskReconstructionContext *runtime,
const Lardon3DProjectDbFeatureExtractTask *parameters) {
if (!runtime || !runtime->project_path || !runtime->project_db || !runtime->resource_governor ||
!parameters) {
return NULL;
}
Lardon3DFeatureTaskContext *context = calloc(1, sizeof(*context));
if (!context) {
return NULL;
}
int n =
snprintf(context->project_path, sizeof(context->project_path), "%s", runtime->project_path);
if (n <= 0 || (size_t)n >= sizeof(context->project_path)) {
free(context);
return NULL;
}
context->database = runtime->project_db;
context->governor = runtime->resource_governor;
context->parameters = *parameters;
return context;
}
bool lardon3d_feature_extract_reconstruct(const Lardon3DTaskDurableSnapshot *snapshot,
void *userdata, Lardon3DTaskKindBinding *binding) {
Lardon3DTaskReconstructionContext *runtime = userdata;
if (!snapshot || !runtime || !binding) {
return false;
}
Lardon3DProjectDbFeatureExtractTask parameters;
if (lardon3d_project_db_load_feature_extract_task(runtime->project_db, snapshot->id,
&parameters) != LARDON3D_PROJECT_DB_OK ||
strcmp(parameters.extractor_kind, LARDON3D_FEATURE_EXTRACTOR_KIND) != 0 ||
parameters.extractor_version != 1) {
return false;
}
unsigned char expected[32];
lardon3d_feature_extractor_parameter_fingerprint(
&(Lardon3DFeatureExtractorParameters){parameters.max_features, parameters.pyramid_levels,
parameters.fast_threshold},
expected);
if (memcmp(expected, parameters.parameter_fingerprint, 32) != 0) {
return false;
}
Lardon3DFeatureTaskContext *context = make_context(runtime, &parameters);
if (!context) {
return false;
}
*binding = (Lardon3DTaskKindBinding){.callback = run,
.userdata = context,
.userdata_destroy = destroy_context,
.finished_callback = finished,
.finished_userdata = context};
return true;
}
Lardon3DTask *
lardon3d_project_create_feature_extract_task(Lardon3DAppState *state, uint64_t image_id,
const Lardon3DFeatureExtractorParameters *parameters,
uint64_t *task_id) {
if (task_id) {
*task_id = 0;
}
if (!state || !state->project_loaded || !state->project_db || !state->resource_governor ||
!parameters || !task_id || !lardon3d_feature_extractor_parameters_valid(parameters)) {
return NULL;
}
Lardon3DProjectDbImage image;
Lardon3DProjectDbImageAsset asset;
if (lardon3d_project_db_load_image(state->project_db, image_id, &image, &asset) !=
LARDON3D_PROJECT_DB_OK) {
return NULL;
}
uint64_t id;
if (lardon3d_project_db_allocate_task_id(state->project_db, &id) != LARDON3D_PROJECT_DB_OK) {
return NULL;
}
Lardon3DProjectDbFeatureExtractTask durable = {.task_id = id,
.image_id = image_id,
.extractor_version = 1,
.max_features = parameters->max_features,
.pyramid_levels = parameters->pyramid_levels,
.fast_threshold = parameters->fast_threshold};
snprintf(durable.extractor_kind, sizeof(durable.extractor_kind), "%s",
LARDON3D_FEATURE_EXTRACTOR_KIND);
lardon3d_feature_extractor_parameter_fingerprint(parameters, durable.parameter_fingerprint);
Lardon3DTaskReconstructionContext runtime = {
.project_path = state->project_path,
.project_db = state->project_db,
.resource_governor = state->resource_governor,
.orb_vulkan_backend = state->orb_vulkan_backend,
};
Lardon3DFeatureTaskContext *context = make_context(&runtime, &durable);
if (!context) {
return NULL;
}
Lardon3DResourceEstimate estimate = {.memory_fixed_bytes = 64ULL * 1024 * 1024,
.memory_bytes_per_item = 512ULL * 1024 * 1024,
.minimum_batch_size = 1,
.maximum_batch_size = 1,
/* EXTERNAL LIBRARY: OpenCV's positive-int API is the safe
* ceiling; Governor supplies the portable host maximum. */
.desired_cpu_threads = INT_MAX,
.desired_io_slots = 1,
.task_class = LARDON3D_RESOURCE_TASK_CPU};
Lardon3DTask *task = lardon3d_task_create_typed("Extraction de features", &estimate,
LARDON3D_FEATURE_EXTRACT_TASK_KIND, 1, run,
context, destroy_context);
if (!task || !lardon3d_task_assign_id(task, id) ||
!lardon3d_task_set_finished_callback(task, finished, context) ||
lardon3d_project_checkpoint_feature_extract_task(state, task, &durable) !=
LARDON3D_PROJECT_TASK_CHECKPOINT_OK) {
lardon3d_task_destroy(task);
return NULL;
}
*task_id = id;
return task;
}
bool lardon3d_project_enqueue_feature_extract(Lardon3DAppState *state, uint64_t image_id,
const Lardon3DFeatureExtractorParameters *parameters,
uint64_t *task_id) {
if (!state || !state->task_queue) {
return false;
}
Lardon3DTask *task =
lardon3d_project_create_feature_extract_task(state, image_id, parameters, task_id);
if (!task) {
return false;
}
if (!lardon3d_task_queue_add(state->task_queue, task, NULL)) {
lardon3d_task_destroy(task);
return false;
}
return true;
}
static Lardon3DFeatureBatchTaskContext *make_batch_context(
const Lardon3DTaskReconstructionContext *runtime,
const Lardon3DProjectDbFeatureExtractBatchTask *parameters) {
if (!runtime || !runtime->project_path || !runtime->project_db ||
!runtime->resource_governor || !parameters) return NULL;
Lardon3DFeatureBatchTaskContext *context = calloc(1, sizeof(*context));
if (!context) return NULL;
int n = snprintf(context->project_path, sizeof(context->project_path), "%s",
runtime->project_path);
if (n <= 0 || (size_t)n >= sizeof(context->project_path)) {
free(context);
return NULL;
}
context->database = runtime->project_db;
context->governor = runtime->resource_governor;
context->parameters = *parameters;
return context;
}
bool lardon3d_feature_extract_batch_reconstruct(
const Lardon3DTaskDurableSnapshot *snapshot, void *userdata,
Lardon3DTaskKindBinding *binding) {
Lardon3DTaskReconstructionContext *runtime = userdata;
if (!snapshot || !runtime || !binding) return false;
Lardon3DProjectDbFeatureExtractBatchTask parameters;
if (lardon3d_project_db_load_feature_extract_batch_task(
runtime->project_db, snapshot->id, &parameters) != LARDON3D_PROJECT_DB_OK)
return false;
unsigned char expected[32];
lardon3d_feature_extractor_parameter_fingerprint(
&(Lardon3DFeatureExtractorParameters){parameters.max_features,
parameters.pyramid_levels,
parameters.fast_threshold}, expected);
if (memcmp(expected, parameters.parameter_fingerprint, 32) != 0) return false;
Lardon3DFeatureBatchTaskContext *context = make_batch_context(runtime, &parameters);
if (!context) return false;
*binding = (Lardon3DTaskKindBinding){.callback = run_batch,
.userdata = context,
.userdata_destroy = destroy_context,
.finished_callback = finished_batch,
.finished_userdata = context};
return true;
}
Lardon3DTask *lardon3d_project_create_feature_extract_batch_task(
Lardon3DAppState *state, uint64_t selected_execution_id,
const Lardon3DFeatureExtractorParameters *parameters, uint64_t *task_id) {
if (task_id) *task_id = 0;
if (!state || !state->project_loaded || !state->project_db ||
!state->resource_governor || !parameters || !task_id ||
!lardon3d_feature_extractor_parameters_valid(parameters) || selected_execution_id == 0)
return NULL;
Lardon3DProjectDbSelectedExecution execution;
if (lardon3d_project_db_load_selected_execution(state->project_db, selected_execution_id,
&execution) != LARDON3D_PROJECT_DB_OK ||
execution.stage < LARDON3D_SELECTED_EXECUTION_CALIBRATION || execution.item_count == 0)
return NULL;
uint64_t id = 0;
if (lardon3d_project_db_allocate_task_id(state->project_db, &id) != LARDON3D_PROJECT_DB_OK)
return NULL;
Lardon3DProjectDbFeatureExtractBatchTask durable = {
.task_id = id,
.selected_execution_id = selected_execution_id,
.next_item_index = 0,
.extractor_version = LARDON3D_FEATURE_EXTRACTOR_VERSION,
.max_features = parameters->max_features,
.pyramid_levels = parameters->pyramid_levels,
.fast_threshold = parameters->fast_threshold};
(void)snprintf(durable.extractor_kind, sizeof(durable.extractor_kind), "%s",
LARDON3D_FEATURE_EXTRACTOR_KIND);
lardon3d_feature_extractor_parameter_fingerprint(parameters,
durable.parameter_fingerprint);
Lardon3DTaskReconstructionContext runtime = {
state->project_path, state->project_db, state->resource_governor,
state->orb_vulkan_backend};
Lardon3DFeatureBatchTaskContext *context = make_batch_context(&runtime, &durable);
if (!context) return NULL;
/* One admitted participant owns decode, ORB pyramid/keypoints/descriptors,
and publication staging bounded by the existing conservative 512 MiB/item.
The 1..12 ceiling is operational benchmark capacity, not selected-domain
cardinality; Governor feedback records each joined window's useful items. */
Lardon3DResourceEstimate estimate = {
.memory_fixed_bytes = 64ULL * 1024 * 1024,
.memory_bytes_per_item = 512ULL * 1024 * 1024,
.minimum_batch_size = 1,
.maximum_batch_size = FEATURE_BATCH_MAX,
.desired_cpu_threads = FEATURE_BATCH_MAX,
.desired_io_slots = 1,
.task_class = LARDON3D_RESOURCE_TASK_CPU};
Lardon3DTask *task = lardon3d_task_create_typed(
"Extraction Feature sélectionnée", &estimate,
LARDON3D_FEATURE_EXTRACT_BATCH_TASK_KIND,
LARDON3D_FEATURE_EXTRACT_BATCH_TASK_KIND_VERSION, run_batch, context,
destroy_context);
if (!task || !lardon3d_task_assign_id(task, id) ||
!lardon3d_task_set_finished_callback(task, finished_batch, context) ||
!batch_checkpoint(context, task, 0)) {
lardon3d_task_destroy(task);
return NULL;
}
*task_id = id;
return task;
}
bool lardon3d_project_enqueue_feature_extract_batch(
Lardon3DAppState *state, uint64_t selected_execution_id,
const Lardon3DFeatureExtractorParameters *parameters, uint64_t *task_id) {
if (!state || !state->task_queue) return false;
Lardon3DTask *task = lardon3d_project_create_feature_extract_batch_task(
state, selected_execution_id, parameters, task_id);
if (!task) return false;
if (!lardon3d_task_queue_add(state->task_queue, task, NULL)) {
lardon3d_task_destroy(task);
return false;
}
return true;
}