Move indexer sandbox to a new file

1 files changed, 889 insertions, 0 deletions

diff --git a/src/im-sandbox.c b/src/im-sandbox.c
new file mode 100644
index 00000000..a5806734
--- /dev/null
+++ b/src/im-sandbox.c
@@ -0,0 +1,889 @@
+/*
+ * im-sandbox.c
+ *
+ * Sandbox for indexing
+ *
+ * Copyright © 2012 Deutsches Elektronen-Synchrotron DESY,
+ *                  a research centre of the Helmholtz Association.
+ * Copyright © 2012 Richard Kirian
+ * Copyright © 2012 Lorenzo Galli
+ *
+ * Authors:
+ *   2010-2012 Thomas White <taw@physics.org>
+ *   2011      Richard Kirian
+ *   2012      Lorenzo Galli
+ *   2012      Chunhong Yoon
+ *
+ * This file is part of CrystFEL.
+ *
+ * CrystFEL is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * CrystFEL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with CrystFEL.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <hdf5.h>
+#include <gsl/gsl_errno.h>
+#include <pthread.h>
+#include <sys/wait.h>
+#include <fcntl.h>
+#include <signal.h>
+
+#ifdef HAVE_CLOCK_GETTIME
+#include <time.h>
+#else
+#include <sys/time.h>
+#endif
+
+#include "utils.h"
+#include "hdf5-file.h"
+#include "index.h"
+#include "peaks.h"
+#include "detector.h"
+#include "filters.h"
+#include "thread-pool.h"
+#include "beam-parameters.h"
+#include "geometry.h"
+#include "stream.h"
+#include "reflist-utils.h"
+
+#include "im-sandbox.h"
+
+
+/* Write statistics at APPROXIMATELY this interval */
+#define STATS_EVERY_N_SECONDS (5)
+
+
+struct sandbox
+{
+
+};
+
+
+static char *get_pattern(FILE *fh, char **use_this_one_instead,
+                         int config_basename, const char *prefix)
+{
+	char *line;
+	char *filename;
+
+	do {
+
+		/* Get the next filename */
+		if ( *use_this_one_instead != NULL ) {
+
+			line = *use_this_one_instead;
+			*use_this_one_instead = NULL;
+
+		} else {
+
+			char *rval;
+
+			line = malloc(1024*sizeof(char));
+			rval = fgets(line, 1023, fh);
+			if ( rval == NULL ) {
+				free(line);
+				return NULL;
+			}
+
+		}
+
+		chomp(line);
+
+	} while ( strlen(line) == 0 );
+
+	if ( config_basename ) {
+		char *tmp;
+		tmp = safe_basename(line);
+		free(line);
+		line = tmp;
+	}
+
+	filename = malloc(strlen(prefix)+strlen(line)+1);
+
+	snprintf(filename, 1023, "%s%s", prefix, line);
+
+	free(line);
+
+	return filename;
+}
+
+
+static void process_image(const struct index_args *iargs,
+                          struct pattern_args *pargs, FILE *ofh,
+                          int cookie)
+{
+	float *data_for_measurement;
+	size_t data_size;
+	UnitCell *cell = iargs->cell;
+	int config_cmfilter = iargs->config_cmfilter;
+	int config_noisefilter = iargs->config_noisefilter;
+	int config_verbose = iargs->config_verbose;
+	IndexingMethod *indm = iargs->indm;
+	struct beam_params *beam = iargs->beam;
+	int r, check;
+	struct hdfile *hdfile;
+	struct image image;
+
+	image.features = NULL;
+	image.data = NULL;
+	image.flags = NULL;
+	image.indexed_cell = NULL;
+	image.det = copy_geom(iargs->det);
+	image.copyme = iargs->copyme;
+	image.reflections = NULL;
+	image.id = cookie;
+	image.filename = pargs->filename;
+	image.beam = beam;
+
+	hdfile = hdfile_open(image.filename);
+	if ( hdfile == NULL ) return;
+
+	r = hdfile_set_first_image(hdfile, "/");
+	if ( r ) {
+		ERROR("Couldn't select first path\n");
+		hdfile_close(hdfile);
+		return;
+	}
+
+	check = hdf5_read(hdfile, &image, 1);
+	if ( check ) {
+		hdfile_close(hdfile);
+		return;
+	}
+
+	if ( (image.width != image.det->max_fs + 1 )
+	  || (image.height != image.det->max_ss + 1))
+	{
+		ERROR("Image size doesn't match geometry size"
+			" - rejecting image.\n");
+		ERROR("Image size: %i,%i.  Geometry size: %i,%i\n",
+		image.width, image.height,
+		image.det->max_fs + 1, image.det->max_ss + 1);
+		hdfile_close(hdfile);
+		free_detector_geometry(image.det);
+		return;
+	}
+
+	if ( image.lambda < 0.0 ) {
+		if ( beam != NULL ) {
+			ERROR("Using nominal photon energy of %.2f eV\n",
+			beam->photon_energy);
+			image.lambda = ph_en_to_lambda(
+			eV_to_J(beam->photon_energy));
+		} else {
+			ERROR("No wavelength in file, so you need to give "
+				"a beam parameters file with -b.\n");
+			hdfile_close(hdfile);
+			free_detector_geometry(image.det);
+			return;
+		}
+	}
+	fill_in_values(image.det, hdfile);
+
+	if ( config_cmfilter ) {
+		filter_cm(&image);
+	}
+
+	/* Take snapshot of image after CM subtraction but before
+	 * the aggressive noise filter. */
+	data_size = image.width * image.height * sizeof(float);
+	data_for_measurement = malloc(data_size);
+
+	if ( config_noisefilter ) {
+		filter_noise(&image, data_for_measurement);
+	} else {
+		memcpy(data_for_measurement, image.data, data_size);
+	}
+
+	switch ( iargs->peaks ) {
+
+		case PEAK_HDF5:
+		// Get peaks from HDF5
+		if (get_peaks(&image, hdfile,
+			iargs->hdf5_peak_path)) {
+			ERROR("Failed to get peaks from HDF5 file.\n");
+		}
+		break;
+
+		case PEAK_ZAEF:
+		search_peaks(&image, iargs->threshold,
+		             iargs->min_gradient, iargs->min_snr,
+		             iargs->ir_inn, iargs->ir_mid, iargs->ir_out);
+		break;
+
+	}
+
+	/* Get rid of noise-filtered version at this point
+	 * - it was strictly for the purposes of peak detection. */
+	free(image.data);
+	image.data = data_for_measurement;
+
+	/* Calculate orientation matrix (by magic) */
+	image.div = beam->divergence;
+	image.bw = beam->bandwidth;
+	image.profile_radius = 0.0001e9;
+
+	index_pattern(&image, cell, indm, iargs->cellr,
+	              config_verbose, iargs->ipriv,
+	              iargs->config_insane, iargs->tols);
+
+	if ( image.indexed_cell != NULL ) {
+		pargs->indexable = 1;
+		image.reflections = find_intersections(&image,
+				image.indexed_cell);
+		if (image.reflections != NULL) {
+			integrate_reflections(&image,
+			                      iargs->config_closer,
+			                      iargs->config_bgsub,
+			                      iargs->min_int_snr,
+			                      iargs->ir_inn,
+			                      iargs->ir_mid,
+			                      iargs->ir_out);
+		}
+	} else {
+		image.reflections = NULL;
+	}
+
+	write_chunk(ofh, &image, hdfile, iargs->stream_flags);
+	fprintf(ofh, "END\n");
+	fflush(ofh);
+
+	/* Only free cell if found */
+	cell_free(image.indexed_cell);
+
+	reflist_free(image.reflections);
+	free(image.data);
+	if ( image.flags != NULL ) free(image.flags);
+	image_feature_list_free(image.features);
+	hdfile_close(hdfile);
+	free_detector_geometry(image.det);
+}
+
+
+static void run_work(const struct index_args *iargs,
+                     int filename_pipe, int results_pipe, FILE *ofh,
+                     int cookie)
+{
+	int allDone = 0;
+	FILE *fh;
+
+	fh = fdopen(filename_pipe, "r");
+	if ( fh == NULL ) {
+		ERROR("Failed to fdopen() the filename pipe!\n");
+		return;
+	}
+
+	while ( !allDone ) {
+
+		struct pattern_args pargs;
+		int  w, c;
+		char buf[1024];
+		char *line;
+		char *rval;
+
+		line = malloc(1024*sizeof(char));
+		rval = fgets(line, 1023, fh);
+		if ( rval == NULL ) {
+			free(line);
+			if ( feof(fh) ) {
+				allDone = 1;
+				continue;
+			} else {
+				ERROR("Read error!\n");
+				break;
+			}
+		}
+
+		chomp(line);
+
+		if ( strlen(line) == 0 ) {
+
+			allDone = 1;
+
+		} else {
+
+			pargs.filename = line;
+			pargs.indexable = 0;
+
+			process_image(iargs, &pargs, ofh, cookie);
+
+			/* Request another image */
+			c = sprintf(buf, "%i\n", pargs.indexable);
+			w = write(results_pipe, buf, c);
+			if ( w < 0 ) {
+				ERROR("write P0\n");
+			}
+
+		}
+
+		free(line);
+
+	}
+
+	/* close my pipes */
+	fclose(fh);
+
+	cleanup_indexing(iargs->ipriv);
+	free(iargs->indm);
+	free(iargs->ipriv);
+	free_detector_geometry(iargs->det);
+	free(iargs->beam);
+	free(iargs->element);
+	free(iargs->hdf5_peak_path);
+	free_copy_hdf5_field_list(iargs->copyme);
+	cell_free(iargs->cell);
+}
+
+
+#ifdef HAVE_CLOCK_GETTIME
+
+static time_t get_monotonic_seconds()
+{
+	struct timespec tp;
+	clock_gettime(CLOCK_MONOTONIC, &tp);
+	return tp.tv_sec;
+}
+
+#else
+
+/* Fallback version of the above.  The time according to gettimeofday() is not
+ * monotonic, so measuring intervals based on it will screw up if there's a
+ * timezone change (e.g. daylight savings) while the program is running. */
+static time_t get_monotonic_seconds()
+{
+	struct timeval tp;
+	gettimeofday(&tp, NULL);
+	return tp.tv_sec;
+}
+
+#endif
+
+static void pump_chunk(FILE *fh, int *finished, FILE *ofh)
+{
+	int chunk_started = 0;
+	int chunk_finished = 0;
+
+	do {
+
+		char line[1024];
+		char *rval;
+
+		rval = fgets(line, 1024, fh);
+		if ( rval == NULL ) {
+
+			if ( feof(fh) ) {
+				/* Process died */
+				*finished = 1;
+				if ( chunk_started ) {
+					ERROR("EOF during chunk!\n");
+					fprintf(ofh, "Chunk is unfinished!\n");
+				}
+			} else {
+				ERROR("fgets() failed: %s\n", strerror(errno));
+			}
+			chunk_finished = 1;
+			continue;
+
+		}
+
+		if ( strcmp(line, "END\n") == 0 ) {
+			chunk_finished = 1;
+		} else {
+			chunk_started = 1;
+			fprintf(ofh, "%s", line);
+		}
+
+	} while ( !chunk_finished );
+}
+
+
+static void run_reader(int *stream_pipe_read, int n_proc, FILE *ofh)
+{
+	int done = 0;
+	int *finished;
+	FILE **fhs;
+	int i;
+
+	finished = calloc(n_proc, sizeof(int));
+	if ( finished == NULL ) {
+		ERROR("Couldn't allocate memory for flags!\n");
+		exit(1);
+	}
+
+	fhs = calloc(n_proc, sizeof(FILE *));
+	if ( fhs == NULL ) {
+		ERROR("Couldn't allocate memory for file handles!\n");
+		exit(1);
+	}
+
+	for ( i=0; i<n_proc; i++ ) {
+		fhs[i] = fdopen(stream_pipe_read[i], "r");
+		if ( fhs[i] == NULL ) {
+			ERROR("Couldn't fdopen() stream!\n");
+			exit(1);
+		}
+	}
+
+	while ( !done ) {
+
+		int r, i;
+		struct timeval tv;
+		fd_set fds;
+		int fdmax;
+
+		tv.tv_sec = 5;
+		tv.tv_usec = 0;
+
+		FD_ZERO(&fds);
+		fdmax = 0;
+		for ( i=0; i<n_proc; i++ ) {
+
+			int fd;
+
+			if ( finished[i] ) continue;
+
+			fd = stream_pipe_read[i];
+
+			FD_SET(fd, &fds);
+			if ( fd > fdmax ) fdmax = fd;
+
+		}
+
+		r = select(fdmax+1, &fds, NULL, NULL, &tv);
+
+		if ( r == -1 ) {
+			ERROR("select() failed: %s\n", strerror(errno));
+			continue;
+		}
+
+		if ( r == 0 ) continue; /* Nothing this time.  Try again */
+
+		for ( i=0; i<n_proc; i++ ) {
+
+			if ( finished[i] ) continue;
+
+			if ( !FD_ISSET(stream_pipe_read[i], &fds) ) continue;
+
+			pump_chunk(fhs[i], &finished[i], ofh);
+
+		}
+
+		done = 1;
+		for ( i=0; i<n_proc; i++ ) {
+			if ( !finished[i] ) done = 0;
+		}
+
+	}
+
+	free(finished);
+
+	for ( i=0; i<n_proc; i++ ) {
+		fclose(fhs[i]);
+	}
+	free(fhs);
+
+	if ( ofh != stdout ) fclose(ofh);
+}
+
+
+static void signal_handler(int sig, siginfo_t *si, void *uc_v)
+{
+	struct ucontext_t *uc = uc_v;
+
+	STATUS("Signal!\n");
+}
+
+
+void create_sandbox(struct index_args *iargs, int n_proc, char *prefix,
+                    int config_basename, FILE *fh, char *use_this_one_instead,
+                    FILE *ofh)
+{
+	int n_indexable, n_processed, n_indexable_last_stats;
+	int n_processed_last_stats;
+	int t_last_stats;
+	pid_t *pids;
+	int *filename_pipes;
+	int *stream_pipe_read;
+	int *stream_pipe_write;
+	FILE **result_fhs;
+	int i;
+	int allDone;
+	int *finished;
+	pid_t pr;
+	struct sigaction sa;
+	int r;
+
+	n_indexable = 0;
+	n_processed = 0;
+	n_indexable_last_stats = 0;
+	n_processed_last_stats = 0;
+	t_last_stats = get_monotonic_seconds();
+
+	stream_pipe_read = calloc(n_proc, sizeof(int));
+	stream_pipe_write = calloc(n_proc, sizeof(int));
+	if ( stream_pipe_read == NULL ) {
+		ERROR("Couldn't allocate memory for pipes.\n");
+		return;
+	}
+	if ( stream_pipe_write == NULL ) {
+		ERROR("Couldn't allocate memory for pipes.\n");
+		return;
+	}
+
+	for ( i=0; i<n_proc; i++ ) {
+
+		int stream_pipe[2];
+
+		if ( pipe(stream_pipe) == - 1 ) {
+			ERROR("pipe() failed!\n");
+			return;
+		}
+
+		stream_pipe_read[i] = stream_pipe[0];
+		stream_pipe_write[i] = stream_pipe[1];
+
+	}
+
+	pr = fork();
+	if ( pr == - 1 ) {
+		ERROR("fork() failed (for reader process)\n");
+		return;
+	}
+
+	if ( pr == 0 ) {
+
+		/* Free resources not needed by reader
+		 * (but which will be needed by worker or master) */
+		for ( i=0; i<n_proc; i++ ) {
+			close(stream_pipe_write[i]);
+		}
+		free(prefix);
+		free(use_this_one_instead);
+		free(stream_pipe_write);
+		cleanup_indexing(iargs->ipriv);
+		free(iargs->indm);
+		free(iargs->ipriv);
+		free_detector_geometry(iargs->det);
+		free(iargs->beam);
+		free(iargs->element);
+		free(iargs->hdf5_peak_path);
+		free_copy_hdf5_field_list(iargs->copyme);
+		cell_free(iargs->cell);
+		fclose(fh);
+
+		run_reader(stream_pipe_read, n_proc, ofh);
+
+		free(stream_pipe_read);
+
+		exit(0);
+
+	}
+
+	/* Set up signal handler to take action if any children die */
+	sa.sa_flags = SA_SIGINFO | SA_NOCLDSTOP;
+	sigemptyset(&sa.sa_mask);
+	sa.sa_sigaction = signal_handler;
+	r = sigaction(SIGCHLD, &sa, NULL);
+	if ( r == -1 ) {
+		ERROR("Failed to set signal handler!\n");
+		return;
+	}
+
+	/* Free resources needed by reader only */
+	if ( ofh != stdout ) fclose(ofh);
+	for ( i=0; i<n_proc; i++ ) {
+		close(stream_pipe_read[i]);
+	}
+	free(stream_pipe_read);
+
+	filename_pipes = calloc(n_proc, sizeof(int));
+	result_fhs = calloc(n_proc, sizeof(FILE *));
+	pids = calloc(n_proc, sizeof(pid_t));
+	if ( filename_pipes == NULL ) {
+		ERROR("Couldn't allocate memory for pipes.\n");
+		return;
+	}
+	if ( result_fhs == NULL ) {
+		ERROR("Couldn't allocate memory for pipe file handles.\n");
+		return;
+	}
+	if ( pids == NULL ) {
+		ERROR("Couldn't allocate memory for PIDs.\n");
+		return;
+	}
+
+	/* Fork the right number of times */
+	for ( i=0; i<n_proc; i++ ) {
+
+		pid_t p;
+		int filename_pipe[2];
+		int result_pipe[2];
+
+		if ( pipe(filename_pipe) == - 1 ) {
+			ERROR("pipe() failed!\n");
+			return;
+		}
+
+		if ( pipe(result_pipe) == - 1 ) {
+			ERROR("pipe() failed!\n");
+			return;
+		}
+
+		p = fork();
+		if ( p == -1 ) {
+			ERROR("fork() failed!\n");
+			return;
+		}
+
+		if ( p == 0 ) {
+
+			FILE *sfh;
+			int j;
+
+			/* Free resources which will not be needed by worker */
+			for ( j=0; j<n_proc; j++ ) {
+				if ( i != j ) close(stream_pipe_write[j]);
+			}
+			for ( j=0; j<i-1; j++ ) {
+				fclose(result_fhs[j]);
+				close(filename_pipes[j]);
+			}
+			free(prefix);
+			free(use_this_one_instead);
+			free(filename_pipes);
+			free(result_fhs);
+			fclose(fh);
+			free(pids);
+
+			/* Child process gets the 'read' end of the filename
+			 * pipe, and the 'write' end of the result pipe. */
+			close(filename_pipe[1]);
+			close(result_pipe[0]);
+
+			sfh = fdopen(stream_pipe_write[i], "w");
+			run_work(iargs, filename_pipe[0], result_pipe[1],
+			         sfh, i);
+			fclose(sfh);
+
+			free(stream_pipe_write);
+			close(filename_pipe[0]);
+			close(result_pipe[1]);
+
+			exit(0);
+
+		}
+
+		/* Parent process gets the 'write' end of the filename pipe
+		 * and the 'read' end of the result pipe. */
+		pids[i] = p;
+		close(filename_pipe[0]);
+		close(result_pipe[1]);
+		filename_pipes[i] = filename_pipe[1];
+
+		result_fhs[i] = fdopen(result_pipe[0], "r");
+		if ( result_fhs[i] == NULL ) {
+			ERROR("fdopen() failed.\n");
+			return;
+		}
+
+	}
+
+	/* Free resources which will not be used by the main thread */
+	cleanup_indexing(iargs->ipriv);
+	free(iargs->indm);
+	free(iargs->ipriv);
+	free_detector_geometry(iargs->det);
+	free(iargs->beam);
+	free(iargs->element);
+	free(iargs->hdf5_peak_path);
+	free_copy_hdf5_field_list(iargs->copyme);
+	cell_free(iargs->cell);
+	for ( i=0; i<n_proc; i++ ) {
+		close(stream_pipe_write[i]);
+	}
+	free(stream_pipe_write);
+
+	/* Send first image to all children */
+	for ( i=0; i<n_proc; i++ ) {
+
+		char *nextImage;
+
+		nextImage = get_pattern(fh, &use_this_one_instead,
+		                        config_basename, prefix);
+
+		if ( nextImage != NULL ) {
+
+			write(filename_pipes[i], nextImage, strlen(nextImage));
+			write(filename_pipes[i], "\n", 1);
+
+			free(nextImage);
+
+		} else {
+
+			int r;
+
+			/* No more files to process.. already? */
+			r = write(filename_pipes[i], "\n", 1);
+			if ( r < 0 ) {
+				ERROR("Write pipe\n");
+			}
+
+		}
+
+	}
+
+	finished = calloc(n_proc, sizeof(int));
+	if ( finished == NULL ) {
+		ERROR("Couldn't allocate memory for process flags.\n");
+		return;
+	}
+
+	allDone = 0;
+	while ( !allDone ) {
+
+		int r, i;
+		struct timeval tv;
+		fd_set fds;
+		double tNow;
+		int fdmax;
+
+		tv.tv_sec = 5;
+		tv.tv_usec = 0;
+
+		FD_ZERO(&fds);
+		fdmax = 0;
+		for ( i=0; i<n_proc; i++ ) {
+
+			int fd;
+
+			if ( finished[i] ) continue;
+
+			fd = fileno(result_fhs[i]);
+			FD_SET(fd, &fds);
+			if ( fd > fdmax ) fdmax = fd;
+
+		}
+
+		r = select(fdmax+1, &fds, NULL, NULL, &tv);
+
+		if ( r == -1 ) {
+			ERROR("select() failed: %s\n", strerror(errno));
+			continue;
+		}
+
+		if ( r == 0 ) continue; /* No progress this time.  Try again */
+
+		for ( i=0; i<n_proc; i++ ) {
+
+			char *nextImage;
+			char results[1024];
+			char *rval;
+			int fd;
+
+			if ( finished[i] ) continue;
+
+			fd = fileno(result_fhs[i]);
+			if ( !FD_ISSET(fd, &fds) ) continue;
+
+			rval = fgets(results, 1024, result_fhs[i]);
+			if ( rval == NULL ) {
+				if ( feof(result_fhs[i]) ) {
+					/* Process died */
+					finished[i] = 1;
+				} else {
+					ERROR("fgets() failed: %s\n",
+					      strerror(errno));
+				}
+				continue;
+			}
+
+			chomp(results);
+			n_indexable += atoi(results);
+			n_processed++;
+
+			/* Send next filename */
+			nextImage = get_pattern(fh, &use_this_one_instead,
+	                                        config_basename, prefix);
+
+			if ( nextImage == NULL ) {
+				/* No more images */
+				r = write(filename_pipes[i], "\n", 1);
+				if ( r < 0 ) {
+					ERROR("Write pipe\n");
+				}
+			} else {
+
+				r = write(filename_pipes[i], nextImage,
+				          strlen(nextImage));
+				r -= write(filename_pipes[i], "\n", 1);
+				if ( r < 0 ) {
+					ERROR("write pipe\n");
+				}
+				free(nextImage);
+			}
+
+		}
+
+		/* Update progress */
+		tNow = get_monotonic_seconds();
+		if ( tNow >= t_last_stats+STATS_EVERY_N_SECONDS ) {
+
+			STATUS("%i out of %i indexed so far,"
+			       " %i out of %i since the last message.\n",
+			       n_indexable, n_processed,
+			       n_indexable - n_indexable_last_stats,
+			       n_processed - n_processed_last_stats);
+
+			n_indexable_last_stats = n_indexable;
+			n_processed_last_stats = n_processed;
+			t_last_stats = tNow;
+
+		}
+
+		allDone = 1;
+		for ( i=0; i<n_proc; i++ ) {
+			if ( !finished[i] ) allDone = 0;
+		}
+
+	}
+
+	fclose(fh);
+
+	for ( i=0; i<n_proc; i++ ) {
+		int status;
+		waitpid(pids[i], &status, 0);
+	}
+
+	for ( i=0; i<n_proc; i++ ) {
+		close(filename_pipes[i]);
+		fclose(result_fhs[i]);
+	}
+
+	free(filename_pipes);
+	free(result_fhs);
+	free(pids);
+	free(finished);
+
+	STATUS("There were %i images, of which %i could be indexed.\n",
+	       n_processed, n_indexable);
+
+}