ZMQ connection and setup stuff

1 files changed, 91 insertions, 47 deletions

diff --git a/src/im-sandbox.c b/src/im-sandbox.c
index e8fbe763..37574310 100644
--- a/src/im-sandbox.c
+++ b/src/im-sandbox.c
@@ -3,17 +3,18 @@
  *
  * Sandbox for indexing
  *
- * Copyright © 2012-2018 Deutsches Elektronen-Synchrotron DESY,
+ * Copyright © 2012-2019 Deutsches Elektronen-Synchrotron DESY,
  *                       a research centre of the Helmholtz Association.
  * Copyright © 2012 Richard Kirian
  * Copyright © 2012 Lorenzo Galli
  *
  * Authors:
- *   2010-2018 Thomas White <taw@physics.org>
+ *   2010-2019 Thomas White <taw@physics.org>
  *   2014      Valerio Mariani
  *   2011      Richard Kirian
  *   2012      Lorenzo Galli
  *   2012      Chunhong Yoon
+ *   2017      Stijn de Graaf
  *
  * This file is part of CrystFEL.
  *
@@ -64,6 +65,7 @@
 #include "im-sandbox.h"
 #include "process_image.h"
 #include "time-accounts.h"
+#include "im-zmq.h"
 
 
 struct sandbox
@@ -92,6 +94,10 @@ struct sandbox
 
 	const char *tmpdir;
 
+	/* ZMQ mode */
+	int zmq;
+	const char *zmq_address;
+
 	/* Final output */
 	Stream *stream;
 };
@@ -364,7 +370,19 @@ static void run_work(const struct index_args *iargs, Stream *st,
                      int cookie, const char *tmpdir, struct sandbox *sb)
 {
 	int allDone = 0;
-	TimeAccounts *taccs = time_accounts_init();
+	TimeAccounts *taccs;
+	struct im_zmq *zmqstuff;
+
+	/* Connect via ZMQ */
+	if ( sb->zmq ) {
+		zmqstuff = im_zmq_connect(sb->zmq_address);
+		if ( zmqstuff == NULL ) {
+			ERROR("ZMQ setup failed.\n");
+			return;
+		}
+	}
+
+	taccs = time_accounts_init();
 
 	while ( !allDone ) {
 
@@ -375,58 +393,66 @@ static void run_work(const struct index_args *iargs, Stream *st,
 		struct event *ev;
 		int r;
 
-		/* Wait until an event is ready */
-		time_accounts_set(taccs, TACC_EVENTWAIT);
-		set_last_task(sb->shared->last_task[cookie], "wait_event");
-		if ( sem_wait(sb->queue_sem) != 0 ) {
-			ERROR("Failed to wait on queue semaphore: %s\n",
-			      strerror(errno));
-		}
+		if ( !sb->zmq ) {
 
-		/* Get the event from the queue */
-		set_last_task(sb->shared->last_task[cookie], "read_queue");
-		pthread_mutex_lock(&sb->shared->queue_lock);
-		if ( (sb->shared->n_events==0) && (sb->shared->no_more) ) {
-			/* Queue is empty and no more coming, so exit */
-			pthread_mutex_unlock(&sb->shared->queue_lock);
-			allDone = 1;
-			continue;
-		}
-		if ( sb->shared->n_events == 0 ) {
-			ERROR("Got the semaphore, but no events in queue!\n");
-			ERROR("no_more = %i\n", sb->shared->no_more);
+			/* Wait until an event is ready */
+			time_accounts_set(taccs, TACC_EVENTWAIT);
+			set_last_task(sb->shared->last_task[cookie], "wait_event");
+			if ( sem_wait(sb->queue_sem) != 0 ) {
+				ERROR("Failed to wait on queue semaphore: %s\n",
+				      strerror(errno));
+			}
+
+			/* Get the event from the queue */
+			set_last_task(sb->shared->last_task[cookie], "read_queue");
+			pthread_mutex_lock(&sb->shared->queue_lock);
+			if ( (sb->shared->n_events==0) && (sb->shared->no_more) ) {
+				/* Queue is empty and no more coming, so exit */
+				pthread_mutex_unlock(&sb->shared->queue_lock);
+				allDone = 1;
+				continue;
+			}
+			if ( sb->shared->n_events == 0 ) {
+				ERROR("Got the semaphore, but no events in queue!\n");
+				ERROR("no_more = %i\n", sb->shared->no_more);
+				pthread_mutex_unlock(&sb->shared->queue_lock);
+				allDone = 1;
+				continue;
+			}
+			r = sscanf(sb->shared->queue[0], "%s %s %i",
+			           filename, event_str, &ser);
+			if ( r != 3 ) {
+				STATUS("Invalid event string '%s'\n",
+				       sb->shared->queue[0]);
+			}
+			memcpy(sb->shared->last_ev[cookie], sb->shared->queue[0],
+			       MAX_EV_LEN);
+			shuffle_events(sb->shared);
 			pthread_mutex_unlock(&sb->shared->queue_lock);
-			allDone = 1;
-			continue;
-		}
-		r = sscanf(sb->shared->queue[0], "%s %s %i",
-		           filename, event_str, &ser);
-		if ( r != 3 ) {
-			STATUS("Invalid event string '%s'\n",
-			       sb->shared->queue[0]);
-		}
-		memcpy(sb->shared->last_ev[cookie], sb->shared->queue[0],
-		       MAX_EV_LEN);
-		shuffle_events(sb->shared);
-		pthread_mutex_unlock(&sb->shared->queue_lock);
 
-		if ( r != 3 ) continue;
+			if ( r != 3 ) continue;
 
-		pargs.filename_p_e = initialize_filename_plus_event();
-		pargs.filename_p_e->filename = strdup(filename);
+			pargs.filename_p_e = initialize_filename_plus_event();
+			pargs.filename_p_e->filename = strdup(filename);
 
-		if ( strcmp(event_str, "(none)") != 0 ) {
+			if ( strcmp(event_str, "(none)") != 0 ) {
+
+				ev = get_event_from_event_string(event_str);
+				if ( ev == NULL ) {
+					ERROR("Bad event string '%s'\n", event_str);
+					continue;
+				}
+				pargs.filename_p_e->ev = ev;
+
+			} else {
+
+				pargs.filename_p_e->ev = NULL;
 
-			ev = get_event_from_event_string(event_str);
-			if ( ev == NULL ) {
-				ERROR("Bad event string '%s'\n", event_str);
-				continue;
 			}
-			pargs.filename_p_e->ev = ev;
 
 		} else {
 
-			pargs.filename_p_e->ev = NULL;
+			pargs.msgpack_obj = im_zmq_fetch(zmqstuff);
 
 		}
 
@@ -434,10 +460,16 @@ static void run_work(const struct index_args *iargs, Stream *st,
 		process_image(iargs, &pargs, st, cookie, tmpdir, ser,
 		              sb->shared, taccs, sb->shared->last_task[cookie]);
 
-		free_filename_plus_event(pargs.filename_p_e);
+		if ( !sb->zmq ) {
+			free_filename_plus_event(pargs.filename_p_e);
+		} else {
+			im_zmq_clean(zmqstuff);
+		}
 
 	}
 
+	im_zmq_shutdown(zmqstuff);
+
 	time_accounts_set(taccs, TACC_FINALCLEANUP);
 	cleanup_indexing(iargs->ipriv);
 	free_detector_geometry(iargs->det);
@@ -804,6 +836,11 @@ static int setup_shm(struct sandbox *sb)
 /* Assumes the caller is already holding queue_lock! */
 static int fill_queue(struct get_pattern_ctx *gpctx, struct sandbox *sb)
 {
+	if ( sb->zmq ) {
+		/* Do nothing */
+		return 0;
+	}
+
 	while ( sb->shared->n_events < QUEUE_SIZE ) {
 
 		struct filename_plus_event *ne;
@@ -998,7 +1035,8 @@ char *create_tempdir(const char *temp_location)
  * If the return value is zero, something is probably wrong. */
 int create_sandbox(struct index_args *iargs, int n_proc, char *prefix,
                    int config_basename, FILE *fh,
-                   Stream *stream, const char *tmpdir, int serial_start)
+                   Stream *stream, const char *tmpdir, int serial_start,
+                   const char *zmq_address)
 {
 	int i;
 	struct sandbox *sb;
@@ -1027,6 +1065,12 @@ int create_sandbox(struct index_args *iargs, int n_proc, char *prefix,
 	sb->iargs = iargs;
 	sb->serial = serial_start;
 	sb->tmpdir = tmpdir;
+	if ( zmq_address != NULL ) {
+		sb->zmq = 1;
+		sb->zmq_address = zmq_address;
+	} else {
+		sb->zmq = 0;
+	}
 
 	sb->fds = NULL;
 	sb->fhs = NULL;